Data model: spZline

General description: This file contains the emission-line fits from specBS. A best-fit stellar absorption-line template has been subtracted.

Naming convention: spZline-pppp-mmmmm.fits

Approximate size: 12 Mbytes.

File type: FITS

Description

Columns in the first HDU

PLATE              Plate number
MJD                Modified Julian date of observation
FIBERID            Fiber ID (1 to 640)
LINENAME           Line name
LINEWAVE           Catalog wavelength for this line in vacuum Angstroms
LINEZ              Redshift
LINEZ_ERR          Redshift error (negative for invalid fit)
LINESIGMA          Gaussian width in km/sec
LINESIGMA_ERR      Error in gaussian width (negative for invalid fit)
LINEAREA           Area in gaussian fit where units are (flux-units) * Ang
LINEAREA_ERR       Flux error (negative for invalid fit)
LINEEW             Equivalent width (Angstroms)
LINEEW_ERR         Equivalent width error (negative for invalid fit)
LINECONTLEVEL      Continuum level at line center
LINECONTLEVEL_ERR  Error in continuum level at line center
LINENPIX           Number of good pixels within +/- 3 sigma of the line center
LINEDOF            Degrees of freedom in fit, approximated as LINENPIX minus the number of terms fit for that line, which can be fractional if one parameter if fixed betwen several lines
LINECHI2           chi2 for all points within +/- 3 sigma of the line center (negative if no such points)

The following lines are fit. Lines with the same ZINDEX are constrained to have the same redshift. Lines with the same WINDEX are constrained to have the same gaussian width. The flux ratios of [O_III] and [N_II] are are constrained to be 1:3.

LINEWAVE LINENAME ZINDEX WINDEX Flux ratio
1215.67 Ly_alpha z_lya w_ly_a
1240.81 N_V 1240 zemission w_n_v
1549.48 C_IV 1549 zemission wemission
1640.42 He_II 1640 zemission wemission
1908.734 C_III] 1908 zemission wemission
2799.49 Mg_II 2799 zemission wemission
3725.94 [O_II] 3725 zemission wemission
3727.24 [O_II] 3727 zemission wemission
4101.734 H_delta zemission w_balmer
4340.464 H_gamma zemission wemission
4363.209 [O_III] 4363 zemission wemission
4861.325 H_beta zemission w_balmer
4958.911 [O_III] 4959 zemission wemission
5006.843 [O_III] 5007 zemission wemission 3 * ([O_III] 4959)
6300.304 [O_I] 6300 zemission wemission
6363.776 [O_I] 6363 zemission wemission
6548.05 [N_II] 6548 zemission wemission
6562.801 H_alpha zemission w_balmer
6583.45 [N_II] 6583 zemission wemission 3 * ([N_II] 6548)
6716.44 [S_II] 6716 zemission wemission
6730.82 [S_II] 6730 zemission wemission

Primary HDU

SIMPLE  =                    T / FIT STANDARD
BITPIX  =                   16 / FITS BITS/PIXEL
NAXIS   =                    0 / NUMBER OF AXES
EXTEND  =                    T /
TAI     =        4482194319.54 / 1st row - Number of seconds since Nov 17 1858
RA      =            28.656976 / 1st row - Right ascension of telescope boresigh
DEC     =            13.804520 / 1st row - Declination of telescope boresight (d
EQUINOX =              2000.00 /
RADECSYS= 'FK5     '           /
AZ      =        306.432220000 / 1st row - Azimuth  (encoder) of tele (0=N?) (de
ALT     =        61.3134576667 / 1st row - Altitude (encoder) of tele        (de
AIRMASS =              1.10307 /
FOCUS   = -999999999999.999999 / 1st row - Focus piston (microns?)
DATE-OBS= '2000-11-29'         / 1st row - TAI date
TAIHMS  = '05:40:17.51'        / 1st row - TAI time (HH:MM:SS.SS) (TAI-UT = appr
TIMESYS = 'tai     '           / TAI, not UTC
TAI-BEG =        4482192260.00 / Exposure Start Time
TAI-END =        4482195390.00 / Exposure End Time
MJD     =                51877 / MJD of observation
MJDLIST = '51877   '           /
VERSION = 'v3_19_1 '           / version of IOP
CAMVER  = 'SPEC2 v4_5'         / Camera code version
OBSERVER= 'harvanek'
OBSCOMM = 'science '
TELESCOP= 'SDSS 2.5-M'         / Sloan Digital Sky Survey
NEXP    =                   12 / Number of exposures in this file
BESTEXP =                 7251 /
EXPID01 = 'b1-00007250-00007254-00007255' / ID string for exposure 1
EXPID02 = 'b1-00007251-00007254-00007255' / ID string for exposure 2
EXPID03 = 'b1-00007252-00007254-00007255' / ID string for exposure 3
EXPID04 = 'b2-00007250-00007254-00007255' / ID string for exposure 4
EXPID05 = 'b2-00007251-00007254-00007255' / ID string for exposure 5
EXPID06 = 'b2-00007252-00007254-00007255' / ID string for exposure 6
EXPID07 = 'r1-00007250-00007254-00007255' / ID string for exposure 7
EXPID08 = 'r1-00007251-00007254-00007255' / ID string for exposure 8
EXPID09 = 'r1-00007252-00007254-00007255' / ID string for exposure 9
EXPID10 = 'r2-00007250-00007254-00007255' / ID string for exposure 10
EXPID11 = 'r2-00007251-00007254-00007255' / ID string for exposure 11
EXPID12 = 'r2-00007252-00007254-00007255' / ID string for exposure 12
NEXP_B1 =                    3 / b1 camera number of exposures
NEXP_B2 =                    3 / b2 camera number of exposures
NEXP_R1 =                    3 / r1 camera number of exposures
NEXP_R2 =                    3 / r2 camera number of exposures
EXPT_B1 =              2700.00 / b1 camera exposure time (seconds)
EXPT_B2 =              2700.00 / b2 camera exposure time (seconds)
EXPT_R1 =              2700.00 / r1 camera exposure time (seconds)
EXPT_R2 =              2700.00 / r2 camera exposure time (seconds)
EXPTIME =              2700.00 / Minimum of exposure times for all cameras
SPCOADD = 'Fri May 11 07:26:36 2007' / SPCOADD finished
FLAVOR  = 'science '           / Flavor of this sequence (e.g., dome flat, etc.)
QUALITY = 'excellent'          / night/image quality
RADEG   = 2.86571000000000E+01 / Right Ascension. (degrees)
DECDEG  = 1.38045200000000E+01 / Declination. (degrees)
PLATEID =                  430 / Plate Id
TILEID  =                  208 / Tile Id
CARTID  =                    5 /Cartridge used in this plugging
MAPID   =              5187701 / Map Id
NAME    = '0430-51877-01'      / Name of target; PlateId-MJD-Mapper ReRun
NGUIDE  =              21.0000 / Number of guider frames during exposure
SEEING20=              2.08333 / 20% seeing during exposure (arcsec)
SEEING50=              2.20333 / 50% seeing during exposure (arcsec)
SEEING80=              2.36333 / 80% seeing during exposure (arcsec)
RMSOFF20=       0.128227666667 / 20% RMS offset of guide fibers (arcsec)
RMSOFF50=       0.251879666667 / 50% RMS offset of guide fibers (arcsec)
RMSOFF80=       0.442921666667 / 80% RMS offset of guide fibers (arcsec)
COLBIN  =                    1 / Binning factor perpendicular to the columns
ROWBIN  =                    1 / Binning factor perpendicular to the rows
PROGRAM = 'binning 1   1 '     / Identifying name for CCD program
SECFOCUS= -1.3000000000000E+02 / Secondary Mirror Position as reported by TCC
GUIDEIMG= '/data/spectro/guider/gimg0756.fits' / Last archived guider image
WTIME   =        975476788.000 / weatherData(timeStamp)
AIRTEMP =        5.30000000000 / weatherData(airtemp)
DEWPOINT=       -8.20000000000 / weatherData(dewpoint)
DEWDEP  =        13.5000000000 / weatherData(dewpointDep)
DUSTA   =        5254.00000000 / weatherData(dusta)
DUSTB   =        135.666666667 / weatherData(dustb)
DUSTC   =        6086.33333333 / weatherData(dustc)
DUSTD   =        155.000000000 / weatherData(dustd)
GUSTD   = 7.95000000000000E+01 / weatherData(gustd)
GUSTS   =        11.7000000000 / weatherData(gusts)
HUMIDITY=        37.0666666667 / weatherData(humidity)
HUMIDOUT=        36.3333333333 / weatherData(humidout)
PRESSURE=        21.5700000000 / weatherData(pressure)
WINDD   =        87.0666666667 / weatherData(windd)
WINDS   =        8.83333333333 / weatherData(winds)
TEMP01  =       -94.1400000000 / CCD 01 Temperature
TEMP02  =       -92.9700000000 / CCD 02 Temperature
TEMP03  =       -92.5800000000 / CCD 03 Temperature
TEMP04  =       -93.4900000000 / CCD 04 Temperature
AUTHOR  = 'Scott Burles & David Schlegel' /
VERSIDL = '6.3     '           / Version of IDL
VERSUTIL= 'v5_2_0  '           / Version of idlutils
VERSREAD= 'v5_3_3  '           / Version of idlspec2d for pre-processing raw dat
VERS2D  = 'v5_3_3  '           / Version of idlspec2d for 2D reduction
VERSCOMB= 'v5_3_2  '           / Version of idlspec2d for combining multiple spe
VERS1D  = 'v5_3_2  '           / Version of idlspec2d for 1D reduction
VERSLINE= 'v5_3_2  '           /Version of idlspec2d for line fitting
VERSLOG = 'fermi-CVS 05/11/07' / Version of SPECLOG product
VERSFLAT= 'v1_7    '           / Version of SPECFLAT product
OPBC    = 'opBC-51813.par'     /
OPCONFIG= 'opConfig-50000.par' /
OPECALIB= 'opECalib-51577.par' /
XSIGMA  =       0.938221750000 /
XSIGMIN =       0.904645000000 /
XSIGMAX =       0.997335000000 /
WSIGMA  =       0.890092998379 /
WSIGMIN =       0.845413000000 /
WSIGMAX =        1.00929999352 /
PLUGFILE= 'plPlugMapM-0430-51877-01.par' /
LAMPLIST= 'lamphgcdne.dat'     /
SKYLIST = 'skylines.dat'       /
HELIO_RV=        18.0336065943 / Heliocentric correction (added to velocities)
VACUUM  =                    T / Wavelengths are in vacuum
SFLATTEN=                    T / Superflat has been applied
PSFSKY  =                    3 / Order of PSF skysubtraction
SKYCHI2 =        1.08416902433 / Mean chi^2 of sky-subtraction
SCHI2MIN=        1.05534681302 /
SCHI2MAX=        1.17834241969 /
PREJECT =             0.200000 / Profile area rejection threshold
SPEC1_G =              17.7522 /(S/N)^2 for spec  1 at mag 20.20
SPEC1_R =              18.6219 /(S/N)^2 for spec  1 at mag 20.25
SPEC1_I =              17.6288 /(S/N)^2 for spec  1 at mag 19.90
SPEC2_G =              16.2644 /(S/N)^2 for spec  2 at mag 20.20
SPEC2_R =              15.6690 /(S/N)^2 for spec  2 at mag 20.25
SPEC2_I =              13.8085 /(S/N)^2 for spec  2 at mag 19.90
NSTD    =                   16 / Number of (good) std stars
GOFFSTD =           -0.0162220 / Spectrophoto offset for std stars in G-band
GRMSSTD =            0.0757010 / Spectrophoto RMS for std stars in G-band
ROFFSTD =           -0.0105619 / Spectrophoto offset for std stars in R-band
RRMSSTD =            0.0487866 / Spectrophoto RMS for std stars in R-band
IOFFSTD =           -0.0130701 / Spectrophoto offset for std stars in I-band
IRMSSTD =            0.0493715 / Spectrophoto RMS for std stars in I-band
GROFFSTD=           -0.0187340 / Spectrophoto offset for std stars in (GR)
GRRMSSTD=            0.0497939 / Spectrophoto RMS for std stars in (GR)
RIOFFSTD=            0.0102034 / Spectrophoto offset for std stars in (RI)
RIRMSSTD=            0.0328852 / Spectrophoto RMS for std stars in (RI)
NGAL    =                  417 / Number of (good) main galaxies
GOFFGAL =           0.00672913 / Spectrophoto offset for main galaxies in G-band
GRMSGAL =            0.0455279 / Spectrophoto RMS for main galaxies in G-band
ROFFGAL =           0.00734711 / Spectrophoto offset for main galaxies in R-band
RRMSGAL =            0.0433952 / Spectrophoto RMS for main galaxies in R-band
IOFFGAL =           0.00634956 / Spectrophoto offset for main galaxies in I-band
IRMSGAL =            0.0454840 / Spectrophoto RMS for main galaxies in I-band
GROFFGAL=           0.00297165 / Spectrophoto offset for main galaxies in (GR)
GRRMSGAL=            0.0415170 / Spectrophoto RMS for main galaxies in (GR)
RIOFFGAL=          -0.00133705 / Spectrophoto offset for main galaxies in (RI)
RIRMSGAL=            0.0243410 / Spectrophoto RMS for main galaxies in (RI)
LOWREJ  =                    5 / Extraction: low rejection
HIGHREJ =                    8 / Extraction: high rejection
SCATPOLY=                    0 / Extraction: Order of scattered light polynomial
PROFTYPE=                    3 / Extraction profile: 1=Gaussian
NFITPOLY=                    1 / Extraction: Number of parameters in each profil
XCHI2   =              1.20192 / Extraction: Mean chi^2
XCHI2MIN=              1.12970 /
XCHI2MAX=              1.28281 /
NWORDER =                    2 / Linear-log10 coefficients
WFITTYPE= 'LOG-LINEAR'         / Linear-log10 dispersion
COEFF0  =        3.58000000000 / Central wavelength (log10) of first pixel
COEFF1  =    0.000100000000000 / Log10 dispersion per pixel
UNAME   = 'fnpc217.fnal.gov'   /
FBADPIX =            0.0114787 / Fraction of bad pixels
FBADPIX1=           0.00687047 / Fraction of bad pixels on spectro-1
FBADPIX2=            0.0160869 / Fraction of bad pixels on spectro-2
WAT0_001= 'system=linear'      /
WAT1_001= 'wtype=linear label=Wavelength units=Angstroms' /
CRVAL1  =        3.58000000000 / Central wavelength (log10) of first pixel
CD1_1   =    0.000100000000000 / Log10 dispersion per pixel
CRPIX1  =                    1 / Starting pixel (1-indexed)
CTYPE1  = 'LINEAR  '           /
DC-FLAG =                    1 / Log-linear flag
BUNIT   = '1E-17 erg/cm^2/s/Ang' /
DIMS0   =                   29 / Number of emission lines
DIMS1   =                  640 / Number of objects

HDU1

XTENSION= 'BINTABLE'           /Binary table written by MWRFITS v1.4a
BITPIX  =                    8 /Required value
NAXIS   =                    2 /Required value
NAXIS1  =                   89 /Number of bytes per row
NAXIS2  =                18560 /Number of rows
PCOUNT  =                    0 /Normally 0 (no varying arrays)
GCOUNT  =                    1 /Required value
TFIELDS =                   19 /Number of columns in table
COMMENT
COMMENT  *** End of mandatory fields ***
COMMENT
COMMENT  *** Column names ***
COMMENT
TTYPE1  = 'PLATE   '           /
TTYPE2  = 'MJD     '           /
TTYPE3  = 'FIBERID '           /
TTYPE4  = 'LINENAME '          /
TTYPE5  = 'LINEWAVE '          /
TTYPE6  = 'LINEZ   '           /
TTYPE7  = 'LINEZ_ERR '         /
TTYPE8  = 'LINESIGMA '         /
TTYPE9  = 'LINESIGMA_ERR '     /
TTYPE10 = 'LINEAREA '          /
TTYPE11 = 'LINEAREA_ERR '      /
TTYPE12 = 'LINEEW  '           /
TTYPE13 = 'LINEEW_ERR '        /
TTYPE14 = 'LINECONTLEVEL '     /
TTYPE15 = 'LINECONTLEVEL_ERR ' /
TTYPE16 = 'LINENPIXLEFT '      /
TTYPE17 = 'LINENPIXRIGHT '     /
TTYPE18 = 'LINEDOF '           /
TTYPE19 = 'LINECHI2 '          /
COMMENT
COMMENT  *** Column formats ***
COMMENT
TFORM1  = 'J       '           /
TFORM2  = 'J       '           /
TFORM3  = 'J       '           /
TFORM4  = '13A     '           /
TFORM5  = 'D       '           /
TFORM6  = 'E       '           /
TFORM7  = 'E       '           /
TFORM8  = 'E       '           /
TFORM9  = 'E       '           /
TFORM10 = 'E       '           /
TFORM11 = 'E       '           /
TFORM12 = 'E       '           /
TFORM13 = 'E       '           /
TFORM14 = 'E       '           /
TFORM15 = 'E       '           /
TFORM16 = 'J       '           /
TFORM17 = 'J       '           /
TFORM18 = 'E       '           /
TFORM19 = 'E       '           /

HDU2

Best-fit absorption-line spectrum, with line fits added in. For testing purposes only.

XTENSION= 'IMAGE   '           /Image Extension created by MWRFITS v1.4a
BITPIX  =                  -32 /
NAXIS   =                    2 /
NAXIS1  =                 3863 /
NAXIS2  =                  640 /
PCOUNT  =                    0 /
GCOUNT  =                    1 /