Facial reconstruction

Search LJMU Research Online

Browse Repository | Browse E-Theses

The HST large programme on NGC 6752 – III. Detection of the peak of the white dwarf luminosity function

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

[img]
Preview
Text
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
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: 20 Apr 2020 10:30
DOI or Identification number: 10.1093/mnras/stz1968
URI: http://researchonline.ljmu.ac.uk/id/eprint/12764

Actions (login required)

View Item View Item