Release 11.12 ("Hergest Ridge")
Release 11.12 ("Hergest Ridge")
| Article ID: gc363 | |
| Author | Peterson, Ruth C.; Latham, David W. |
| Title | The radial velocity and velocity dispersion of the remote globular cluster Palomar 15 - Constraints on the mass of the Galaxy |
| Journal | Astrophysical Journal, vol. 336, p. 178-184 |
| Year of publication | 1989 (on gclusters from 2013-08-06 14:19:14 ) |
| Abstract | Spectroscopic observations, obtained at 519 nm using an echelle spectrograph and reticon detector on the Multiple Mirror Telescope in 1986, are reported for four red giants in the Galactic globular cluster Palomar 15. The data are presented graphically and used to determine the weighted mean heliocentric velocity and galactocentric velocity of the cluster (+68.9 + or - 1.2 km/sec and +148 km/sec, respectively) and the perigalactic distance (20 kpc or more). It is inferred that the Galaxy has total mass of at least 2 x 10 to the 11th solar mass. |
| Tags | Pal 15 |
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