2005MNRAS.361.1131F

Query : 2005MNRAS.361.1131F

2005MNRAS.361.1131F - Mon. Not. R. Astron. Soc., 361, 1131-1135 (2005/August-3)

The open-cluster initial-final mass relationship and the high-mass tail of the white dwarf distribution.

FERRARIO L., WICKRAMASINGHE D., LIEBERT J. and WILLIAMS K.A.

Abstract (from CDS):

Recent studies of white dwarfs in open clusters have provided new constraints on the initial-final mass relationship (IFMR) for main-sequence stars with masses in the range 2.5-6.5M☉. We re-evaluate the ensemble of data that determines the IFMR and argue that the IFMR can be characterized by a mean IFMR about which there is an intrinsic scatter. We investigate the consequences of the IFMR for the observed mass distribution of field white dwarfs using population synthesis calculations. We show that while a linear IFMR predicts a mass distribution that is in reasonable agreement with the recent results from the Palomar-Green survey, the data are better fitted by an IFMR with some curvature. Our calculations indicate that a significant (∼28) percentage of white dwarfs originating from a single star evolution has masses in excess of ∼0.8M☉, obviating the necessity for postulating the existence of a dominant population of high-mass white dwarfs that arise from binary star mergers.

Abstract Copyright: 2005 RAS

Journal keyword(s): stars: evolution - stars: white dwarfs - open clusters and associations: general

Simbad objects: 55

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Number of rows : 55
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 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
2 EGGR 25 WD* 03 52 11.3301458285 +24 55 48.797718780 15.42 16.32 16.52     DA1.5 93 0
3 HZ 4 WD* 03 55 21.9881513952 +09 47 18.135008592 13.917 14.592 14.506 14.58 14.642 DA3.4 220 0
4 EGGR 29 WD* 04 09 28.9040081904 +17 07 54.395653512 14.66 15.378 15.323 15.408 15.515 DA3.2 134 0
5 LAWD 18 WD* 04 23 55.6973490528 +16 21 15.122076192   14.33 14.27 14.79   DA2.5 125 0
6 LAWD 19 WD* 04 28 39.4103640216 +16 58 12.094977036   13.96 14.03 14.51   DA2.0 135 0
7 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
8 HZ 7 WD* 04 33 44.9627622456 +12 42 40.357601928   14.15 14.24 14.49   DA2.3 140 0
9 EGGR 316 WD* 04 40 23.8781083870 +13 58 45.880560826   14.97 14.94 13.25   DB4 89 0
10 HZ 14 WD* 04 41 01.7398379640 +10 59 40.001283528   13.68 13.86     DA1.8 133 0
11 Cl* NGC 2099 KRR 14 WD* 05 52 06.43 +32 38 29.4   23.372 23.047     DA 7 0
12 Cl* NGC 2099 KRR 12 WD* 05 52 11.96 +32 40 39.5   23.369 22.947     DA 7 0
13 Cl* NGC 2099 KRR 13 WD* 05 52 16.21 +32 38 18.5   23.21 22.960     DA 9 0
14 Cl* NGC 2099 KRR 2 WD* 05 52 17.54 +32 29 03.4   22.928 22.702     DA 9 0
15 Cl* NGC 2099 KRR 6 WD* 05 52 18.44 +32 29 37.6   23.602 23.257     DA 7 0
16 M 37 OpC 05 52 18.6 +32 32 36           ~ 436 0
17 Cl* NGC 2099 KRR 16 WD* 05 52 22.89 +32 36 29.4   23.582 23.363     DA 11 0
18 Cl* NGC 2099 KRR 9 WD* 05 52 25.14 +32 40 03.6   22.996 22.686     DA 9 0
19 Cl* NGC 2099 KRR 24 WD* 05 52 25.34 +32 29 35.2   23.562 23.340     DA 7 0
20 Cl* NGC 2099 KRR 5 WD* 05 52 25.46 +32 30 54.4   23.417 23.123     DA 9 0
21 Cl* NGC 2099 KRR 10 WD* 05 52 25.82 +32 36 03.8   22.933 22.697     DA 9 0
22 Cl* NGC 2099 KRR 21 WD* 05 52 26.42 +32 30 04.3   23.381 23.094     DA 7 0
23 Cl* NGC 2099 KRR 11 WD* 05 52 26.57 +32 35 25.4           DA 7 0
24 Cl* NGC 2099 KRR 1 LM* 05 52 26.80 +32 30 46.7   22.979 22.570     DA 6 0
25 Cl* NGC 2099 KRR 15 WD* 05 52 27.42 +32 35 50.0   23.692 23.347     DA 5 0
26 Cl* NGC 2099 KRR 17 WD* 05 52 29.29 +32 37 06.7   23.861 23.656     DA 6 0
27 Cl* NGC 2099 KRR 4 WD* 05 52 34.53 +32 29 12.4           DA 6 0
28 Cl* NGC 2099 KRR 3 WD* 05 52 36.25 +32 32 51.5           DA 6 0
29 Cl* NGC 2099 KRR 7 WD* 05 52 36.96 +32 33 29.9           DA 6 0
30 Cl* NGC 2168 RA 1 WD* 06 08 38.792 +24 15 06.61   20.64 20.989     DA 13 0
31 LAWDS NGC 2168 2 WD* 06 08 42.315 +24 10 17.61   22.38 21.569     DA 12 0
32 LAWDS NGC 2168 27 WD* 06 09 06.256 +24 19 25.25   22.04 21.398     DA 12 0
33 NGC 2168 OpC 06 09 07.5 +24 20 15           ~ 604 0
34 Cl* NGC 2168 RA 3 WD* 06 09 11.5412764416 +24 27 20.709332676   20.1 20.065     DO 16 0
35 LAWDS NGC 2168 15 WD* 06 09 11.7448605408 +24 02 41.586083232   19.9 20.785 18.9   DA 11 0
36 Cl* NGC 2168 RA 4 WD* 06 09 23.4729139560 +24 27 21.788696088   20.2 19.863     DO 16 0
37 * alf CMa SB* 06 45 08.91728 -16 42 58.0171 -1.51 -1.46 -1.46 -1.46 -1.43 A0mA1Va 1610 0
38 * alf CMa B WD* 06 45 09.3041925037 -16 43 00.724740067   8.41 8.44     DA1.9 563 1
39 Cl* NGC 2516 RK 3 WD* 07 57 03.1217604000 -60 54 52.806636000   18.7 19.88 19.9   DA 24 0
40 Cl* NGC 2516 RK 2 WD* 07 57 50.6471208768 -60 49 54.810631056   16.5 19.55 19.5   DA 30 0
41 Cl* NGC 2516 RK 5 WD* 07 57 53.7643489368 -60 28 49.345667724   18.7 20.09 19.5   DA 25 0
42 NGC 2516 OpC 07 58 00.5 -60 46 36           ~ 793 0
43 Cl* NGC 2516 RK 1 WD* 07 58 49.1642036664 -60 48 23.190609852   17.9 19.61 14.2   DA 25 0
44 LB 5893 WD* 08 39 36.4894448736 +19 30 43.660631664 16.70 17.57 17.63   18.00 DA2.5 56 0
45 EGGR 59 WD* 08 39 45.5747385840 +20 00 15.827498388   18.01 17.85 18.4   DAH 67 0
46 EGGR 60 WD* 08 39 47.2132332384 +19 46 11.963822952   18.4 18.23 18.9   DA 48 0
47 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
48 LB 5959 WD* 08 40 13.3026682896 +18 43 26.373596232   18.9 18.15 18.6   DA 60 1
49 EGGR 61 WD* 08 40 28.0935005160 +19 43 34.488958224   17.6 17.66 17.7   DA 72 0
50 Cl* NGC 2632 DPN 3 WD* 08 40 31.4689640280 +21 40 42.732950412   18.0 18.0     DA 39 0
51 LB 1876 WD* 08 42 52.3105257384 +19 51 11.194802136   17.84 17.69     DA5 48 1
52 Cl* NGC 3532 RK 10 WD* 11 03 15.1371670128 -58 21 44.255696652           DA 23 0
53 Cl* NGC 3532 RK 9 WD* 11 03 37.3192597272 -58 18 40.318347132           DA 20 0
54 NGC 3532 OpC 11 05 33.9 -58 42 13           ~ 414 0
55 Cl* NGC 3532 RK 8 WD* 11 12 48.8 -58 49 50           DA 11 0

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