ALFALFA-SDSS catalogue (dr2.ALFALFA_SDSS)

The table has 100 rows, 18 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
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]
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]
logMHI float
logMHI_err float