2019MNRAS.488.3857B

Query : 2019MNRAS.488.3857B

2019MNRAS.488.3857B - Mon. Not. R. Astron. Soc., 488, 3857-3865 (2019/September-3)

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

BEDIN L.R., 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. and MARINO A.F.

Abstract (from CDS):

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.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): white dwarfs - globular clusters: individual: NGC 6752

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
3 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
4 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
5 NAME Bedin I G 19 10 45.850 -59 55 02.25           ~ 5 0
6 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
7 NGC 6791 OpC 19 20 52.8 +37 46 40   10.52 9.5     ~ 1120 0

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