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HI in the Dusty Elliptical Galaxy NGC 5266

Published online by Cambridge University Press:  25 April 2016

R. Morganti ,
A. Pizzella ,
E. M. Sadler  and
F. Bertola
R. Morganti
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, Australia. [email protected] Istituto di Radioastronomia, CNR, via Gobetti 101, 40129 Bologna, Italy
A. Pizzella
Affiliation:
Istituto Astronomico, Università di Roma, via Lancisi 29, Roma, Italy
E. M. Sadler
Affiliation:
School of Physics, University of Sydney, NSW 2006, Australia
F. Bertola
Affiliation:
Dipartimento di Astronomia, Vicolo dell’Osservatorio 5, 35122 Padova, Italy
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Abstract

Recent observations with the Australia Telescope Compact Array show that the elliptical galaxy NGC 5266 has a disk of neutral hydrogen extending to almost 10Re. This HI disk lies along the galaxy’s major axis, at right angles to the inner minor-axis dust lane. The geometry and kinematics of the gas will allow us to determine both the intrinsic shape of the stellar galaxy and the mass distribution. The mass-to-light ratio M/LB rises from about 2 in the central regions to ~12 at 9Re (H0 = 50km s−1 Mpc−1).

Keywords

galaxiesindividual (NGC 5266) — galaxieskinematics and dynamics
Type
Extragalactic
Information
Publications of the Astronomical Society of Australia , Volume 12 , Issue 2 , August 1995 , pp. 143 - 145
Copyright
Copyright © Astronomical Society of Australia 1995

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