Release 11.12 ("Hergest Ridge")
Release 11.12 ("Hergest Ridge")
| Article ID: gc513 | |
| Author | Lanzoni, B. et al. |
| Title | The Velocity Dispersion Profile of NGC 6388 from Resolved-star Spectroscopy: No Evidence of a Central Cusp and New Constraints on the Black Hole Mass |
| Journal | The Astrophysical Journal, Volume 769, Issue 2, 15 pp. |
| Year of publication | 2013 (on gclusters from 2016-04-28 11:07:06 ) |
| Abstract | By combining high spatial resolution and wide-field spectroscopy performed, respectively, with SINFONI and FLAMES at the ESO/VLT we measured the radial velocities of more than 600 stars in the direction of NGC 6388, a Galactic globular cluster which is suspected to host an intermediate-mass black hole. Approximately 55% of the observed targets turned out to be cluster members (...) The comparison with spherical and isotropic models shows that the observed density and velocity dispersion profiles are inconsistent with the presence of a central black hole more massive than ~2000 M ?. These findings are at odds with recent results obtained from integrated light spectra... |
| Also available at: | http://arxiv.org/abs/1304.2953 |
| Tags | NGC 6388 |
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