Deep Hubble Space Telescope imaging in NGC 6397: Stellar dynamics
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Heyl, Jeremy; Richer, Harvey B; Anderson, Jay; Fahlman, Gregory G; Dotter, Aaron; Hurley, Jarrod; Kalirai, Jason S; Rich, R M; Shara, Michael M; Stetson, Peter B; Woodley, Kristin A.; Zurek, D
Description
Multi-epoch observations with the Advanced Camera for Surveys on the Hubble Space Telescope provide a unique and comprehensive probe of stellar dynamics within NGC 6397. We are able to confront analytic models of the globular cluster with the observed stellar proper motions. The measured proper motions probe well along the main sequence from 0.8 to below 0.1 M as well as white dwarfs younger than 1 Gyr. The observed field lies just beyond the half-light radius where standard models of globular...[Show more]
Collections | ANU Research Publications |
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Date published: | 2012 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/78362 |
Source: | Astrophysical Journal, The |
DOI: | 10.1088/0004-637X/761/1/51 |
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01_Heyl_Deep_Hubble_Space_Telescope_2012.pdf | 4.87 MB | Adobe PDF | Request a copy |
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