ALFALFA-SDSS catalogue (dr1.ALFALFA_SDSS)

The table has 100 rows, 24 columns.

Description

This table contains properties for CAVITY galaxies, directly taken from the Arecibo Legacy Fast ALFA (ALFALFA) survey.

References:

  1. Arecibo Legacy Fast ALFA Survey (Haynes et al., 2018).
    This data corresponds to 'Catalog of ALFALFA extragalactic HI sources' data available here.
  2. ALFALFA-SDSS Galaxy Catalog (Durbala et al., 2020).
    This data corresponds to 'Table 2. Derived properties of A100-SDSS galaxies' data available here.

Columns

Name Type UCD Unit Description
galaxy int meta.id
meta.main

CAVITY ID
AGC int meta.id.cross

Entry number in the AGC catalogue
Vhelio int spect.dopplerVeloc
em.line.HI
 [km·s⁻¹]

Heliocentric velocity of the HI profile midpoint [1]
W50 int [km·s⁻¹]

Width at 50% level [1]
W20 int [km·s⁻¹]

Width at 20% level [1]
HIflux float phot.flux.density
em.line.HI
spect.line
 [Jy·km·s⁻¹]

HI line flux density [1]
sigflux float stat.error
phot.flux.density
 [Jy·km·s⁻¹]

Uncertainty in HIflux [1]
Dist float [Mpc]

Distance used in MHI, Mstar, SFR [1]
sigDist float [Mpc]

Uncertainty of Dist [1]
logMH float phys.mass
 [log(M☉)]

HI mass, where distance is the one adopted in [1]
logMH_err float stat.error
phys.mass

Uncertainty in logMH [1]
Hicode int

HI source code. Good S/N or tentative detection (1 or 2, respectively) [1]
logMstarTaylor float phys.mass
 [log(M☉)]

Stellar mass from SDSS optical photometry using the Taylor method [2]
logMstarTaylor_err float stat.error
phys.mass

Uncertainty in logMstarTaylor [2]
logMstarMcGaugh float phys.mass
 [log(M☉)]

Stellar mass from infrared unWISE photometry using the McGaugh method [2]
logMstarMcGaugh_err float stat.error
phys.mass

Uncertainty in logMstarMcGaugh [2]
logMstarGSWLC float phys.mass
 [log(M☉)]

Stellar mass from GSWLC-2 [2]
logMstarGSWLC_err float stat.error
phys.mass

Uncertainty in logMstarGSWLC [2]
logSFR22 float phys.SFR
 [log(M☉·yr⁻¹)]

Star Formation Rate (SFR) from unWISE infrared photometry using the flux at the frequency of 22 μm [2]
logSFR22_err float stat.error
phys.SFR

Uncertainty in SFR22 [2]
logSFRNUVIR float phys.SFR
 [log(M☉·yr⁻¹)]

Corrected near-ultraviolet SFR from GALEX NUV photometry SFRNUVcor for galaxies with NUV fluxes available in NASA-Sloan Atlas [2]
logSFRNUVIR_err float stat.error
phys.SFR

Uncertainty in logSFRNUVIR [2]
logSFRGSWLC float phys.SFR
 [log(M☉·yr⁻¹)]

SFR from GSWLC-2 [2]
logSFRGSWLC_err float stat.error
phys.SFR

Uncertainty in logSFRGSWLC [2]