A Feature of the Spiral Pattern and Star Formation in the Galaxy NGC1566

Details A Feature of the Spiral Pattern and Star Formation in the Galaxy NGC1566 A Feature of the Spiral Pattern and Star Formation in the Galaxy NGC1566

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985atsir1387....4p&link_type=abstract

Astronomicheskii Tsirkulyar NO. 1387/AUG, 1985

Astronomy and Astrophysics

Astronomy

Scientific paper

The NGC 1566 spiral pattern is modelled upon data on H II regions with account of their specific arrangement in the arms. The corotation radius is found to be 66arcsec±10arcsec, the pattern speed Ωp = 24±3 km/s/kpc. It is suggested that the centrifugal instability in the internal H II ring (R = 35arcsec) may excite the bright arms.

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