The HIPASS catalogue - III. Optical counterparts and isolated dark galaxies

By M. Doyle, Michael Drinkwater, D. Rohde, Kevin A. Pimbblet, M. Read, M. Meyer, M. Zwaan, E. Ryan-Weber, J. Stevens, B. Koribalski and 31 more. 2005

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We present the largest catalogue to date of optical counterparts for H I radio-selected galaxies, HOPCAT. Of the 4315 H I radio-detected sources from the H I Parkes All Sky Survey (HIPASS) catalogue, we find optical counterparts for 3618 (84 per cent) galaxies. Of these, 1798 (42 per cent) have confirmed optical velocities and 848 (20 per cent) are single matches without confirmed velocities. Some galaxy matches are members of galaxy groups. From these multiple galaxy matches, 714 (16 per cent) have confirmed optical velocities and a further 258 (6 per cent) galaxies are without confirmed velocities. For 481 (11 per cent), multiple galaxies are present but no single optical counterpart can be chosen and 216 (5 per cent) have no obvious optical galaxy present. Most of these 'blank fields' are in crowded fields along the Galactic plane or have high extinctions. Isolated 'dark galaxy' candidates are investigated using an extinction cut of A(Bj) < 1 mag and the blank-fields category. Of the 3692 galaxies with an A(Bj) extinction < 1 mag, only 13 are also blank fields. Of these, 12 are eliminated either with follow-up Parkes observations or are in crowded fields. The remaining one has a low surface brightness optical counterpart. Hence, no isolated optically dark galaxies have been found within the limits of the HIPASS survey.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/0865551d95013e1c883e0c12133af872de2877f2

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Citations in the corpus

The HI content of star-forming galaxies at z = 0.24 (2007, methodology): “For the purposes of defining a spectral window for coadding the HI signal, we allow for an average HI profile for the galaxies c© 2006 RAS, MNRAS 000, 1–11 of the order of ∼300 km s−1 (Doyle et al. 2005).”
THE ARECIBO LEGACY FAST ALFA SURVEY: THE α.40 H i SOURCE CATALOG, ITS CHARACTERISTICS AND THEIR IMPACT ON THE DERIVATION OF THE H i MASS FUNCTION (2011, background): “Of the ones with identified OCs and included in DR7, 11740 are assigned SDSS code “I” (meaning the SDSS photometric identification is acceptable and there is no issue with the spectroscopic identification where such exists) while the others are given a code in Table 3 indicating a recognized issue w”
AN EMPIRICAL CHARACTERIZATION OF EXTENDED COOL GAS AROUND GALAXIES USING Mg ii ABSORPTION FEATURES (2010, background): “The large associated HI column density (Rao et al. 2006) suggests that Mg II absorbers are similar to those H I clouds seen around individual galaxies in 21 cm surveys (e.g. Doyle et al. 2005).”
The DiskMass Survey VII. The distribution of luminous and dark matter in spiral galaxies (2013, methodology): “Distances are taken from Paper I. Integrated Hi fluxes ( S HIdV) are from tabulated values in NED, with three different sources; (1) (RC3; de Vaucouleurs et al. 1991); (2) (HIPASS; Doyle et al. 2005); (3) (Andersen et al. 2006).”
THE VELOCITY WIDTH FUNCTION OF GALAXIES FROM THE 40% ALFALFA SURVEY: SHEDDING LIGHT ON THE COLD DARK MATTER OVERABUNDANCE PROBLEM (2011, background): “For example, the HIPASS primary sample contains 4315 sources of which only 2646 have unambiguous optical counterparts (Doyle et al. 2005).”
GHASP: an Hα kinematic survey of spiral and irregular galaxies - VI. New Hα data cubes for 108 galaxies (2008, methodology): “The HI line width of ∼270 km s−1 measured by Doyle et al. (2005) is in good agreement with our Hα velocity field amplitude.”