The external origin of the gas in S0 galaxies
1992; IOP Publishing; Volume: 401; Linguagem: Inglês
10.1086/186675
ISSN1538-4357
AutoresF. Bertola, L. M. Buson, W. W. Zeilinger,
Tópico(s)Astronomy and Astrophysical Research
Resumoview Abstract Citations (151) References (28) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The External Origin of the Gas in S0 Galaxies Bertola, F. ; Buson, L. M. ; Zeilinger, W. W. Abstract In this Letter we present three new cases of S0 galaxies, namely NGC 2768, NGC 4379, and IC 4889, out of a sample of 15, in which the gas is counterrotating or strongly kinematically decoupled with respect to the stellar body of the galaxy. Assuming gas infall with randomly oriented angular momentum, this result implies that in 40% of the galaxies in our sample, the ionized gas is of external origin. However, several pieces of evidence suggest that the acquisition of external gas in S0 galaxies can be even more general. Publication: The Astrophysical Journal Pub Date: December 1992 DOI: 10.1086/186675 Bibcode: 1992ApJ...401L..79B Keywords: Interacting Galaxies; Interstellar Gas; Spiral Galaxies; Astronomical Spectroscopy; Ionized Gases; Astrophysics; GALAXIES: ELLIPTICAL AND LENTICULAR; CD; GALAXIES: INTERACTIONS; GALAXIES: KINEMATICS AND DYNAMICS; GALAXIES: STRUCTURE full text sources ADS | data products SIMBAD (33) NED (33)
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