Other
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasj...42l..45s&link_type=abstract
Astronomical Society of Japan, Publications (ISSN 0004-6264), vol. 42, no. 3, 1990, p. L45-L51.
Other
5
Galactic Radiation, Interacting Galaxies, Irregular Galaxies, Markarian Galaxies, Star Formation, Starburst Galaxies, Carbon Monoxide, Emission Spectra, Line Spectra, Molecular Gases
Scientific paper
(C-12)O (J = 1-0)-line emission has been detected in the direction of the clumpy irregular galaxy Mrk 297 (Arp 209, NGC 6052). The CO emission region is compact, associated with the brightest optical knots and slightly extended toward the east. The estimated molecular mass is about 5 x 10 to the 9th solar masses, comparable to the H I mass. The FIR-to-CO luminosity ratio suggests that this galaxy is a typical starburster. The kinematics of the CO and H I gases are discussed based on a radial-penetration encounter model of two galaxies on the line of sight. A mildly disturbed component, which is seen nearly face-on, contains both H I and molecular gas, and the tidal disturbance may have caused the active star formation in dense molecular clouds. On the other hand, the more disturbed edge-on component contains much H I, but little molecular gas, which may have become dissociated during a tidal encounter.
Fujisawa Kenta
Handa Toshihiro
Nakai Naomasa
Sofue Yoshiaki
Taniguchi Yoshiaki
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