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http://hdl.handle.net/20.500.12386/33121| Title: | The HST large programme on NGC 6752 - III. Detection of the peak of the white dwarf luminosity function | Authors: | BEDIN, Luigi Salaris, M. Anderson, J. Libralato, M. Apai, D. Nardiello, D. Rich, R. M. Bellini, A. Dieball, A. Bergeron, P. Burgasser, A. J. Milone, A. P. Marino, A. F. |
Issue Date: | 2019 | Journal: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Number: | 488 | Issue: | 3 | First Page: | 3857 | 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 m<SUB>F606W</SUB> = 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. | URI: | http://hdl.handle.net/20.500.12386/33121 | URL: | https://academic.oup.com/mnras/article/488/3/3857/5533339 http://arxiv.org/abs/1907.06300v1 |
ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stz1968 | Bibcode ADS: | 2019MNRAS.488.3857B | Fulltext: | open |
| Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| stz1968.pdf | Pdf editoriale | 3.76 MB | Adobe PDF | View/Open |
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