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Bedin, LR, Salaris, M, Anderson, J, Libralato, M, Apai, D, Nardiello, D, Rich, RM, Bellini, A, Dieball, A, Bergeron, P, Burgasser, AJ, Milone, AP and Marino, AF (2019) The HST large programme on NGC 6752 – III. Detection of the peak of the white dwarf luminosity function. Monthly Notices of the Royal Astronomical Society, 488 (3). pp. 3857-3865. ISSN 0035-8711
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The HST large programme on NGC 6752 – III. Detection of the peak of the white dwarf luminosity function.pdf - Published Version Download (3MB) | Preview |
Abstract
We report on the white dwarf (WD) cooling sequence of the old globular cluster NGC 6752, which is chemically complex and hosts a blue horizontal branch. This is one of the last globular cluster WD cooling sequences accessible to imaging by the Hubble Space Telescope. Our photometry and completeness tests show that we have reached the peak of the luminosity function of the WD cooling sequence, at a magnitude mF606W = 29.4 ± 0.1, which is consistent with a formal age of ∼14 Gyr. This age is also consistent with the age from fits to the main-sequence turn-off (13–14 Gyr), reinforcing our conclusion that we observe the expected accumulation of WDs along the cooling sequence. © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society
| Item Type: | Article |
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| Additional Information: | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2019 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
| Uncontrolled Keywords: | 0201 Astronomical and Space Sciences |
| Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
| Divisions: | Astrophysics Research Institute |
| Publisher: | Oxford University Press |
| Date Deposited: | 20 Apr 2020 10:21 |
| Last Modified: | 04 Sep 2021 07:27 |
| DOI or ID number: | 10.1093/mnras/stz1968 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/12764 |
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