The ALFALFA Survey Scientific Products
This page is an updated public repository of datasets produced by the ALFALFA Team. ALFALFA data can be accessed as catalogs of detections, the spectra of detections, or by downloading entire datacubes of observations in a region of sky.Catalogs
The ALFALFA100 Catalogs and Cross-Match with SDSS
"The Arecibo Legacy Fast ALFA Survey: The ALFALFA Extragalactic HI Source Catalog"Haynes, M.P., Giovanelli, R., Kent, B.R., Adams, E.A.K., Balonek, T.J., Craig, D.W., Fertig, D., Finn, R., Giovanardi, C., Hallenbeck, G., Hess, K.M., Hoffman, G.L., Huang, S., Jones, M.G., Koopmann, R.A., Kornreich, D.A., Leisman, L., Miller, J., Moorman, C., O'Connor, J., O'Donoghue, A., Papastergis, E., Troischt, P. Stark, D. & Xiao, L. 2018 ApJ 861, 49.
ADS astro-ph/1805.11499
Table 2 of the paper by Haynes et al. (2018) presents the ALFALFA catalog of extragalactic HI sources. The user is referred to that paper for a detailed description of the data taking and reduction procedures and for discussion of caveats involved in using this dataset, reviewing and expanding on discussions presented previously in Giovanelli et al. (2005; ADS) and Haynes et al. (2011; ADS). The values of parameters in Table 2 supercede those presented in earlier data releases. Newly added to this Table are the HI line width at 20% of the peak (W20) and the uncertainties in the distance (sigD) and the logarithm of the HI Mass (sigMHI). The latter are identifical to those used in the paper analyzing the ALFALFA HI mass function (Jones et al. 2018; ADS).
Brief description of contents of ASCII and CSV files. See Haynes et al. (2018) for further details (Haynes et al. 2011 and Jones et al. 2018 also).| Catalog of ALFALFA extragalactic HI sources | ASCII |
| Catalog of ALFALFA extragalactic HI sources | CSV |
"The ALFALFA-SDSS Galaxy Catalog"
Durbala, A., Finn, R.A., Crone Odekon, M., Haynes, M.P., Koopmann, R.A. & O'Donohue, A.A., 2020, Astron. J. 160, 721
ADS astro-ph/2011.02588
Table 1 of the paper by Durbala et al. (2020) presents a cross reference of the ALFALFA Extragalactic Source catalog with the Sloan Digital Sky Survey (SDSS) and their basic properties. Table 2 of the same paper provides properties including absolute magnitudes, colors, stellar masses and star formation rates derived using various prescriptions as discussed in that paper.
| Table 1. Basic optical properties of A100-SDSS galaxies | gzipped FITS |
| Table 2. Derived properties of A100-SDSS galaxies | gzipped FITS |
Other Catalogs and Datasets
- The final extragalactic source catalog is also available through the Vizier service as J/ApJ/861/49.
- The Archived Data Page contains this information as well as links to older catalogs.