On the Stringent Constraint on Massive Dark Clusters in the Galactic Halo

Details On the Stringent Constraint on Massive Dark Clusters in the Galactic Halo On the Stringent Constraint on Massive Dark Clusters in the Galactic Halo

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...487l..61s&link_type=abstract

Astrophysical Journal Letters v.487, p.L61

Astronomy and Astrophysics

Astronomy

3

Dark Matter, Galaxy: Halo, Galaxy: Globular Clusters: General

Scientific paper

This Letter revises the recent claims of a dynamical constraint on massive dark clusters from the Galactic globular cluster luminosity function (GCLF). We point out that this argument is invalid for two reasons. The first point is that with a proper sample of globular clusters, the GCLF presents a significant trend with Galactocentric position, and second, the disruption timescale of globular clusters by encounters with these massive objects depends strongly on many uncertain parameters. For the usual halo model of Cadwell & Ostriker, it may be smaller by only a factor of 2 for distant globular clusters. Therefore, the existence of massive dark clusters in the halo could be possible. This provides a scenario in which the formation of dark clusters and globular clusters may have a similar origin.

Affiliated with

Also associated with

No associations

Rating

On the Stringent Constraint on Massive Dark Clusters in the Galactic Halo 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 Stringent Constraint on Massive Dark Clusters in the Galactic Halo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Stringent Constraint on Massive Dark Clusters in the Galactic Halo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1224801