CLASSY Data Products and File Extensions

1. Select raw spectra (_x1dsum.fits files)


2. Co-added spectra (_spec.fits)
• Columns: Wavelength, flux, uncertainty, continuum, cont subtracted
• Ext 1: High-resolution: G130M+G160M
• Ext 2: Moderate-High-Resolution: G130M+G160M+G185M/G225M (where applicable)
• Ext 3: Low-Resolution: G130M+G160M+G140L (where applicable)
• Ext 4: UV + aperture corrected optical


3. Stellar continuum fits (_cont.fits)

FIT METHOD 1: BEAGLE Fits (Stark)

• Ext 1: Stellar continuum fit
• Columns: wavelength, flux, error, CB20 model, BPASS model, SB99 model, fit window

FITS METHOD 2: Luminosity-Weighted Fits (Chisholm)
• Ext 2: Ext 2: Fit component properties / weights
• Columns: Weight, age, age unc., metallicity, metallicity unc., resolution, ...


4. Emission-line fits (_emis.fits)
• Ext #i: line measurements and parameters of Galaxy #i:
• Columns: Ion name, wavelength, line center, Vsys, GFWHM, continuum,
  EW, flux, flux unc., cont. rms, SNR, FXC3, FXC3E, IXC3, IXC3E, FXHB,
  FXHBE, IXHB, IXHBE, FC3,FC3E, FHB, FHBE, EBV EBVE


5. Absorption-line fits (_absp.fits)
• Ext #i: line measurements and parameters of Galaxy #i:
• Columns: Ion name, wavelength, f-value, Vcent, Vel range, EW, EW uncertainty


6. Nebular Abundances from Emission-lines (_neb.fits)
• Ext 0: Galaxy properties table
• Ext 1: Temperature and density measurements:
• Columns: Te[NeIII], unc., Te[OIII], unc., Te[SIII], unc., Te[NII], unc.,
  Te[OII], unc., Te[SII], unc., TeVHigh, unc., TeHigh, unc., TeInt., unc.,
  TeLow, unc., ne[ArIV], unc., ne CIII], unc., ne SiIII], unc., ne[SII], unc.,
  neVHigh, unc., neHigh, unc., neInt., unc., neLow, unc., Pressure, PressureE
• Ext 2: Direct abundance measurements:
• Columns: O0, O0E, Op, OpE, Op2, Op2E, Op3, Op3E, OA, OAE, 12+LOH,
  12+LOHE, OpOt, OpOtE, log U low, log U int., log U high, log U ave, Cp2Op2,
  Cp2Op2E, CICF, CIFE, LCO, LCOE, Np, NpE, NICF, NICFE, LNpOp, LNpOpE,
  LNO, LNOE, Sp, SpE, Sp2, Sp2E, SICF, SICFE, 12+LSH, 12+LSHE, LSO, LSOE,
  Arp2, Arp2E, Arp3, Arp3E, ArICF, ArICFE, 12+LArH, 12+LArHE, LArO, LArOE,
  Nep2, Nep2E, NeICF, NeICFE, 12+LNeH, 12+LNeHE, LNeO, LNeOE
• Ext 3: Strong line abundance measurements:
• Columns: PP04, PP04E, PG16, PG16E, ...