Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004hst..prop10257a&link_type=abstract
HST Proposal ID #10257
Astronomy and Astrophysics
Astronomy
Hst Proposal Id #10257 Stellar Populations
Scientific paper
We propose to observe the central regions of the globular cluster NGC 6397 with ACS/WFC once per month for the 10 months of its visibility in Cycle 13. The project has three main goals: {1} Measure internal motions for roughly 3000 stars within 150 arcseconds of the cluster center, using archival WFPC2 as a first epoch. The motion of the typical star will be measured to 10-20%. We will detect any central black hole {BH} with a mass greater than 1000 solar masses, and will also measure core-collapse signatures such as anisotropy. {2} Conduct the first-ever search for heavy binaries by looking for the astrometric "wobble" of the luminous secondary. We should find all heavy binaries in the field with separations between 1 and 5 AU and periods between 3 months and 5 years. {3} Search for opticall counterparts to X-ray sources found by Chandra.
No associations
LandOfFree
Astrometric and Photometric Study of NGC 6397 for Internal Motions, Dark Binaries, and X-Ray Sources 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 Astrometric and Photometric Study of NGC 6397 for Internal Motions, Dark Binaries, and X-Ray Sources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Astrometric and Photometric Study of NGC 6397 for Internal Motions, Dark Binaries, and X-Ray Sources will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1011190