Data model: galSpecLine

General description: Line measurements for fibers for which the MPA-JHU spectroscopic parameters pipeline has been run. This file is built out of a similar one in the galspec SVN product. It is designed to be line-by-line matched with the specObj list of all spectra. There is further information about the MPA-JHU results in the parallel files galSpecInfo, galSpecIndx, and galSpecExtra. ID values in galSpecInfo are set to -1 for cases where there were no results from the MPA-JHU pipeline. In some cases, the pipeline was run but we don't believe the results are reliable, in which case the column "RELIABLE" in galSpecInfo is set to zero.

Naming convention: galSpecLine-[DRNAME].fits

Approximate size: 2 Gbytes.

File type: FITS

Read by products: sas

Written by products: sas

Required column names:

• specObjID (int64): Unique ID
• sigma_balmer (float32): Velocity dispersion (sigma not FWHM) measured simultaneously in all of the Balmer lines (km)
• sigma_balmer_err (float32): Error in the above (km)
• sigma_forbidden (float32): Velocity dispersion (sigma not FWHM) measured simultaneously in all the forbidden lines (km)
• sigma_forbidden_err (float32): Error in the above (km)
• v_off_balmer (float32): Velocity offset of the Balmer lines from the measured redshift (km)
• v_off_balmer_err (float32): Error in the above (km)
• v_off_forbidden (float32): Velocity offset of the forbidden lines from the measured redshift (km)
• v_off_forbidden_err (float32): Error in the above (km)
• oii_3726_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• oii_3726_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• oii_3726_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• oii_3726_reqw_err (float32): Error in the equivalent width described above (Ang)
• oii_3726_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• oii_3726_eqw_err (float32): Error in the equivalent width described above (Ang)
• oii_3726_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• oii_3726_flux_err (float32): Error in the flux (1e)
• oii_3726_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• oii_3726_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• oii_3729_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• oii_3729_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• oii_3729_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• oii_3729_reqw_err (float32): Error in the equivalent width described above (Ang)
• oii_3729_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• oii_3729_eqw_err (float32): Error in the equivalent width described above (Ang)
• oii_3729_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• oii_3729_flux_err (float32): Error in the flux (1e)
• oii_3729_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• oii_3729_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• neiii_3869_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• neiii_3869_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• neiii_3869_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• neiii_3869_reqw_err (float32): Error in the equivalent width described above (Ang)
• neiii_3869_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• neiii_3869_eqw_err (float32): Error in the equivalent width described above (Ang)
• neiii_3869_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• neiii_3869_flux_err (float32): Error in the flux (1e)
• neiii_3869_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• neiii_3869_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• h_delta_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• h_delta_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• h_delta_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• h_delta_reqw_err (float32): Error in the equivalent width described above (Ang)
• h_delta_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• h_delta_eqw_err (float32): Error in the equivalent width described above (Ang)
• h_delta_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• h_delta_flux_err (float32): Error in the flux (1e)
• h_delta_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• h_delta_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• h_gamma_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• h_gamma_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• h_gamma_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• h_gamma_reqw_err (float32): Error in the equivalent width described above (Ang)
• h_gamma_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• h_gamma_eqw_err (float32): Error in the equivalent width described above (Ang)
• h_gamma_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• h_gamma_flux_err (float32): Error in the flux (1e)
• h_gamma_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• h_gamma_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• oiii_4363_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• oiii_4363_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• oiii_4363_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• oiii_4363_reqw_err (float32): Error in the equivalent width described above (Ang)
• oiii_4363_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• oiii_4363_eqw_err (float32): Error in the equivalent width described above (Ang)
• oiii_4363_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• oiii_4363_flux_err (float32): Error in the flux (1e)
• oiii_4363_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• oiii_4363_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• h_beta_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• h_beta_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• h_beta_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• h_beta_reqw_err (float32): Error in the equivalent width described above (Ang)
• h_beta_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• h_beta_eqw_err (float32): Error in the equivalent width described above (Ang)
• h_beta_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• h_beta_flux_err (float32): Error in the flux (1e)
• h_beta_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• h_beta_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• oiii_4959_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• oiii_4959_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• oiii_4959_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• oiii_4959_reqw_err (float32): Error in the equivalent width described above (Ang)
• oiii_4959_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• oiii_4959_eqw_err (float32): Error in the equivalent width described above (Ang)
• oiii_4959_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• oiii_4959_flux_err (float32): Error in the flux (1e)
• oiii_4959_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• oiii_4959_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• oiii_5007_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• oiii_5007_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• oiii_5007_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• oiii_5007_reqw_err (float32): Error in the equivalent width described above (Ang)
• oiii_5007_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• oiii_5007_eqw_err (float32): Error in the equivalent width described above (Ang)
• oiii_5007_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• oiii_5007_flux_err (float32): Error in the flux (1e)
• oiii_5007_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• oiii_5007_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• hei_5876_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• hei_5876_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• hei_5876_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• hei_5876_reqw_err (float32): Error in the equivalent width described above (Ang)
• hei_5876_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• hei_5876_eqw_err (float32): Error in the equivalent width described above (Ang)
• hei_5876_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• hei_5876_flux_err (float32): Error in the flux (1e)
• hei_5876_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• hei_5876_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• oi_6300_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• oi_6300_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• oi_6300_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• oi_6300_reqw_err (float32): Error in the equivalent width described above (Ang)
• oi_6300_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• oi_6300_eqw_err (float32): Error in the equivalent width described above (Ang)
• oi_6300_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• oi_6300_flux_err (float32): Error in the flux (1e)
• oi_6300_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• oi_6300_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• nii_6548_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• nii_6548_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• nii_6548_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• nii_6548_reqw_err (float32): Error in the equivalent width described above (Ang)
• nii_6548_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• nii_6548_eqw_err (float32): Error in the equivalent width described above (Ang)
• nii_6548_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• nii_6548_flux_err (float32): Error in the flux (1e)
• nii_6548_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• nii_6548_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• h_alpha_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• h_alpha_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• h_alpha_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• h_alpha_reqw_err (float32): Error in the equivalent width described above (Ang)
• h_alpha_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• h_alpha_eqw_err (float32): Error in the equivalent width described above (Ang)
• h_alpha_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• h_alpha_flux_err (float32): Error in the flux (1e)
• h_alpha_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• h_alpha_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• nii_6584_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• nii_6584_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• nii_6584_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• nii_6584_reqw_err (float32): Error in the equivalent width described above (Ang)
• nii_6584_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• nii_6584_eqw_err (float32): Error in the equivalent width described above (Ang)
• nii_6584_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• nii_6584_flux_err (float32): Error in the flux (1e)
• nii_6584_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• nii_6584_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• sii_6717_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• sii_6717_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• sii_6717_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• sii_6717_reqw_err (float32): Error in the equivalent width described above (Ang)
• sii_6717_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• sii_6717_eqw_err (float32): Error in the equivalent width described above (Ang)
• sii_6717_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• sii_6717_flux_err (float32): Error in the flux (1e)
• sii_6717_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• sii_6717_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• sii_6731_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• sii_6731_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• sii_6731_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• sii_6731_reqw_err (float32): Error in the equivalent width described above (Ang)
• sii_6731_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• sii_6731_eqw_err (float32): Error in the equivalent width described above (Ang)
• sii_6731_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• sii_6731_flux_err (float32): Error in the flux (1e)
• sii_6731_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• sii_6731_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• ariii7135_cont (float32): Continuum at line center from 200 pixel median smoothing of the emission-line subtracted continuum (1e)
• ariii7135_cont_err (float32): Error in the continuum computed from the variance in the band pass (1e)
• ariii7135_reqw (float32): The equivalent width of the continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative). In this case the continuum comes from a running 200 pixel median and does not properly account for stellar absorption. In general the EQW measurements provide a better measure of the true equivalent width. The purpose of this measurement is to help characterize the stellar absorption effecting the line. (EW_stellar = REQW - EQW) (Ang)
• ariii7135_reqw_err (float32): Error in the equivalent width described above (Ang)
• ariii7135_eqw (float32): The equivalent width of the CB08 continuum-subtracted emission line computed from straight integration over the bandpasses listed below (emisison is negative) . This properly takes into account stellar absorption. Note that it will not be correct in the case of blended lines (ie NII & H-alpha) (Ang)
• ariii7135_eqw_err (float32): Error in the equivalent width described above (Ang)
• ariii7135_flux (float32): Flux from Gaussian fit to continuum subtracted data. (Note that the fit is done simultaneously to all the lines so de-blending happens automatically) (1e)
• ariii7135_flux_err (float32): Error in the flux (1e)
• ariii7135_inst_res (float32): Instrumental resolution at the line center (measured for each spectrum from the ARC lamps) (1e)
• ariii7135_chisq (float32): Reduced chi-squared of the line fit over the bandpass used for the EW measurement (1e)
• oii_sigma (float32): The width of the [O II] line in a free fit (ie. not tied to other emission lines) (km)
• oii_flux (float32): The flux of the [O II] doublet from a free fit. (1e)
• oii_flux_err (float32): The estimated uncertainty on OII_FLUX (1e)
• oii_voff (float32): The velocity offset of the [O II] doublet from a free fit (km)
• oii_chi2 (float32): chi^2 of the fit to the [O II] line in free fit
• oiii_sigma (float32): The width of the [O III]5007 line in a free fit (ie. not tied to other emission lines) (km)
• oiii_flux (float32): The flux of the [O III]5007 line from a free fit. (1e)
• oiii_flux_err (float32): The estimated uncertainty on OIII_FLUX (1e)
• oiii_voff (float32): The velocity offset of the [O III]5007 line from a free fit (km)
• oiii_chi2 (float32): chi^2 of the fit to the [O III]5007 line in free fit
• spectofiber (float32): The multiplicative scale factor applied to the original flux and error spectra prior to measurement of the emission lines to improve the spectrophotometric accuracy. The rescaling insures that a synthetic r-band magnitude computed from the spectrum matches the r-band fiber magnitude measured by the photometric pipeline.