On the rotation and relative mass of NGC 5195, the 'companion of M51'

Details On the rotation and relative mass of NGC 5195, the 'companion of M51' On the rotation and relative mass of NGC 5195, the 'companion of M51'

Jan 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...211..324s&link_type=abstract

Astrophysical Journal, vol. 211, Jan. 15, 1977, pt. 1, p. 324-328.

Astronomy and Astrophysics

Astrophysics

22

Angular Velocity, Astronomical Models, Galactic Rotation, Galactic Structure, Spiral Galaxies, Gravitational Effects, Tides

Scientific paper

Spectrograms of the double galaxy M51 (NGC 5194 and 5195) are analyzed in terms of rotational velocities, and the data are shown to confirm the prediction of Toomre and Toomre (1972) that the east side of NGC 5195 should rotate toward the observer. The maximum circular velocity in NGC 5195 is estimated to be at least 120 km/s, an apparent position angle of 91 deg is adopted for the same galaxy, and the mass of NGC 5195 is estimated to be between one third and one half that of NGC 5194. Using three different methods to interpret available spectrograms, the velocity difference between NGC 5195 and 5194 is determined as +137 (+ or - 8) km/s. Remaining discrepancies between the tidal-interaction model of M51 and observations are briefly discussed.

Affiliated with

Also associated with

No associations

Rating

On the rotation and relative mass of NGC 5195, the 'companion of M51' does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the rotation and relative mass of NGC 5195, the 'companion of M51', we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the rotation and relative mass of NGC 5195, the 'companion of M51' will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-951650