The violent interstellar medium in Messier 31

Details The violent interstellar medium in Messier 31 The violent interstellar medium in Messier 31

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nascp3084..221b&link_type=abstract

In NASA, Ames Research Center, The Interstellar Medium in External Galaxies: Summaries of Contributed Papers p 221-223 (SEE N91-

Computer Science

Andromeda Galaxy, Cavities, Emission, Interstellar Matter, Kinematics, Star Formation, Estimating, Hydrogen, Interferometry, Mapping, Neutral Gases, O Stars, Stellar Winds, Very Large Array (Vla), Wolf-Rayet Stars

Scientific paper

Taurus observations in the line of H alpha and Very Large Array (VLA) HI mapping of the HII complex No. 722 in M31, reveal what seems to be a spherical cavity 330 pc in diameter blown out by a stellar association of over 206 years old. Evidence of induced star formation which was initiated less than 56 years ago is present in the form of bright HII emission and numerous O, B and Wolf-Rayet stars which are found within the shell surrounding the cavity. The energy necessary to create the HI shell is estimated to be about 551 erg.

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