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Disrupted HI Environment around M82

Published online by Cambridge University Press:  03 August 2017

M.S. Yun ,
P.T.P. Ho  and
K.Y. Lo
M.S. Yun
Affiliation:
Center for Astrophysics 60 Garden Street Cambridge, MA 02138, USA
P.T.P. Ho
Affiliation:
Center for Astrophysics 60 Garden Street Cambridge, MA 02138, USA
K.Y. Lo
Affiliation:
Astronomy Department University of Illinois Urbana, IL 61801, USA

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We obtained 21cm HI aperture synthesis maps of the “exploding galaxy (Lynds and Sandage 1963)” M82 using the D-configuration of the VLA in order to trace the distribution and kinematics of the atomic gas in and around M82 with a high sensitivity. A field centered at M82 and four adjacent fields were observed and mosaiced together with a spectral resolution of 48.8 kHz (10.3 km s—1) and 62″ × 68″ beam (FWHM). The detection sensitivity corresponds to 2.7 × 1019 atoms cm—2. In addition, we also obtained a set of large field (26′ × 26′) deep exposure Standard (Harris) R-band optical images using the Tek 2048 CCD on No.1 0.9-m telescope at Kitt Peak, Arizona, to compare the observed HI features with optical images.

Type
VI- Other Gaseous Components
Information
Symposium - International Astronomical Union , Volume 146: Dynamics of Galaxies and their Molecular Cloud Distributions , 1991 , pp. 202
Copyright
Copyright © Kluwer 1991 

References

Cottrell, G.A. 1977, M.N.R.A.S., 187, 577.Google Scholar
Lynds, C.R., and Sandage, A.R. 1963, Ap. J., 137, 1005.Google Scholar
Rots, A.H., and Shane, W.W. 1975, Astron. Astrophys., 45, 25.Google Scholar