SIMBAD references

2018AJ....155...15A - Astron. J., 155, 15-15 (2018/January-0)

The neutral gas properties of extremely isolated early-type galaxies. II.

ASHLEY T., MARCUM P.M. and FANELLI M.N.

Abstract (from CDS):

As part of an ongoing study of isolated early-type galaxies (IEG), we present neutral hydrogen (H I) observations of six IEGs obtained with the Green Bank Telescope. Two of the six IEGs presented in this paper have detected H I emission (KIG 870 and SDSS J102145.89+383249.8). KIG 870 has an H I emission profile that is strongly asymmetric about the optical systemic velocity with a redshifted double-horned profile and a blueshifted single-peaked component. KIG 870 is likely an advanced merger system. SDSS J102145.89+383249.8 has a Gaussian-like profile, indicating that the H I is not strongly rotating, is in a face-on disk, or is in a thick-disk similar to a dwarf galaxy. Our parent sample of H I observations is composed of 12 IEGs, 7 of which have now been detected in H I. The dwarf and luminous IEGs in our parent sample have median H I-mass-to-blue-luminosity ratios that are each three times larger than that of their non-cluster ETG counterparts, indicating that IEGs in our sample are significantly more gas rich than non-cluster ETGs.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: ISM - galaxies: star formation - galaxies: star formation

Simbad objects: 11

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