Gas Accretion in NGC 3656 (ARP 155)

Details Gas Accretion in NGC 3656 (ARP 155) Gas Accretion in NGC 3656 (ARP 155)

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aj....111.1053b&link_type=abstract

Astronomical Journal v.111, p.1053

Astronomy and Astrophysics

Astronomy

9

Galaxies: Individual: Ngc 3656, Galaxies: Interactions, Accretion

Scientific paper

We study the gas distribution in the recent merger remnant NGC 3656, a perturbed elliptical. The total gaseous mass content is a few times 10^9^M_sun_. The galaxy contains comparable amounts of atomic and molecular hydrogen. Roughly 90% of the gas mass lies at or near the prominent minor axis dust lane of the galaxy. There are also strong indications of an H I extension to the south, which projects onto a luminosity condensation bound by a prominent optical shell. Most likely, the galaxy is still accreting gas from the southern extension. This system may be a precursor of polar ring or shell galaxies such as Cen A.

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