Powering the Starburst in the Merging System MARKARIAN:297

Details Powering the Starburst in the Merging System MARKARIAN:297 Powering the Starburst in the Merging System MARKARIAN:297

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...273....6s&link_type=abstract

Astronomy and Astrophysics, Vol.273, NO. 1/JUNI, P. 6, 1993

Astronomy and Astrophysics

Astrophysics

8

Scientific paper

Fully sampled CO 2 - 1 and 1 - 0 maps and optical spectra of the merging system Mkn 297 are presented. The molecular gas is centrally concentrated, but no more so than in a normal spiral galaxy. Mkn 297 has star formation properties that are closer to a normal spiral than an extreme starburst system, consistent with a connection between the central condensation of H_2_ and star formation. If the precursor galaxies involved in the Mkn 297 system had angular momentum vectors aligned or perpendicular cancellation of angular momentum through cloud- cloud collisions would not occur, thus the gas would not be able to condense in the center. The low H_2_ surface density near the center of Mkn 297 is then unable to drive the very efficient massive star formation seen in extreme starburst systems.

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