Tidal radii of globular clusters and the mass of the Milky Way

@article{Bellazzini2004TidalRO,
  title={Tidal radii of globular clusters and the mass of the Milky Way},
  author={Michele Bellazzini},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2004},
  volume={347},
  pages={119-124}
}
  • M. Bellazzini
  • Published 11 September 2003
  • Physics
  • Monthly Notices of the Royal Astronomical Society
Tidal radii of remote globular clusters (R GC ≥ 35 kpc) are used to provide constraints on the mass profile of the Milky Way galaxy that are independent of kinematic data. The available data are consistent with the profile of an isothermal sphere with circular velocity V c = 220 ± 40 km s -1 in the radial range 35 ≤ R GC ≤ 100 kpc, in good agreement with all recent estimates. The more robust constraint at large distances from the Galactic Centre is provided by NGC 2419, yelding an enclosed mass… 

Figures from this paper

The radial velocity dispersion profile of the Galactic halo : constraining the density profile of the dark halo of the Milky Way
We have compiled a new sample of 240 halo objects with accurate distance and radial velocity measurements, including globular clusters, satellite galaxies, field blue horizontal branch (FHB) stars
Masses, Tidal Radii, and Escape Speeds in Dwarf Spheroidal Galaxies under MOND and Dark Halos Compared
We investigate the success and problems of modified Newtonian dynamics (MOND) in explaining the structural parameters and dynamics of remote Galactic globular clusters (GCs) and dwarf spheroidal
Hi Clouds Beyond the Galactic Disk
Recent observations in the 21cm line with the Green Bank Telescope have changed our view of the neutral interstellar medium (ISM) in several ways. The new data show that in the inner parts of the
A low surface brightness halo surrounding the globular cluster NGC 5694
We report on the discovery of an extended stellar halo surrounding the distant Galactic globular cluster NGC 5694, based on new deep (V≃ 24.5) wide-field (24 × 20 arcmin2) photometry acquired with
Application of three-body stability to globular clusters - II. Observed velocity dispersions
The velocity dispersion profile in globular clusters (GCs) is explained here without having to rely on dark matter or a modification of Newtonian dynamics (MOND). The flattening of the velocity
A New Milky Way Companion: Unusual Globular Cluster or Extreme Dwarf Satellite?
We report the discovery of SDSS J1049+5103, an overdensity of resolved blue stars at (α2000, δ2000) = (162.°343, 51.°051). This object appears to be an old, metal-poor stellar system at a distance of
Comparing the properties of local globular cluster systems: implications for the formation of the Galactic halo
We investigate the hypothesis that some fraction of the globular clusters presently observed in the Galactic halo formed in external dwarf galaxies. This is done by means of a detailed comparison
Modeling the Disruption of the Globular Cluster Palomar 5 by Galactic Tides
TLDR
The simulations unambiguously predict the destruction of Pal 5 at its next disk crossing in ~110 Myr, suggesting that many more similar systems could once have populated the inner parts of the Milky Way but have been transformed into debris streams by the Galactic tidal field.
Distant field blue horizontal branch stars and the mass of the Galaxy – II. Photometry and spectroscopy of UKST candidates 16 < B < 19.5, 11 < R < 52 kpc
This is the second in a series of papers presenting a new calculation of the mass of the Galaxy based on radial velocities and distances for a sample of faint 16 < B < 21.3 field blue
On the Andromeda to Milky Way mass ratio
We have explored the hypothesis that the total mass ratio of the two main galaxies of the Local Group, the Andromeda galaxy (M31) and the Milky Way (MW), can be constrained by measuring the tidal
...
...

References

SHOWING 1-10 OF 38 REFERENCES
Orbits of Globular Clusters in the Outer Galaxy: NGC 7006
We present a proper-motion study of the distant globular cluster NGC 7006 based on the measurement of 25 photographic plates spanning a 40 yr interval. The absolute proper motion determined with
Globular cluster orbits based on Hipparcos proper motions
Space Velocities of Globular Clusters. III. Cluster Orbits and Halo Substructure
We have compiled a catalog of absolute proper motions of globular clusters from various sources. The sample consists of 38 clusters, from which most of the southern ones (15 clusters) were measured
The Mass of the Milky Way: Limits from a newly assembled set of halo objects
We set new limits on the mass of the Milky Way, making use of the latest kinematic information for Galactic satellites and halo objects. Our sample consists of 11 satellite galaxies, 137 globular
The present and future mass of the Milky Way halo
A simple model for the Milky Way halo is presented. It has a flat rotation curve in the inner regions, but the density falls off sharply beyond an outer edge. This truncated, flat rotation curve (TF)
MASS OF OUR GALAXY AS DETERMINED FROM TIDAL RADII OF GLOBULAR CLUSTERS AND DWARF SPHEROIDAL GALAXIES
It is shown that the mean mass density of the earth Galaxy can be expressed by only the tidal radii and the masses of globulars and dwarf spheroidals. The mean mass density law is determined as a
The mass of the Milky Way galaxy
We use the Jaffe model as a global mass distribution for the Galaxy and determine the circular velocity $v_c$ and the Jaffe radius $r_j$ using the satellites of the Galaxy, estimates of the local
Tidal evolution of globular clusters. I - Method
Tidal evolution of globular clusters is regulated by both Galactic tidal effects and internal relaxation processes. In order to investigate the tidal evolution of globular clusters, a numerical
Great Circle Tidal Streams: Evidence for a Nearly Spherical Massive Dark Halo around the Milky Way
An all-high-latitude sky survey for cool carbon giant stars in the Galactic halo has revealed 75 such stars, of which the majority are new detections. Of these, more than half are clustered on a
...
...