2009ApJ...707..870B


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.17CEST04:13:37

2009ApJ...707..870B - Astrophys. J., 707, 870-877 (2009/December-3)

On the apparent lack of Be X-ray binaries with black holes.

BELCZYNSKI K. and ZIOLKOWSKI J.

Abstract (from CDS):

In our Galaxy there are 64 Be X-ray binaries known to date. Out of these, 42 host a neutron star (NS), and for the remainder the nature of the companion is unknown. None, so far, are known to host a black hole (BH). There seems to be no apparent mechanism that would prevent formation or detection of Be stars with BHs. This disparity is referred to as a missing Be-BH X-ray binary problem. We point out that current evolutionary scenarios that lead to the formation of Be X-ray binaries predict that the ratio of binaries with NSs to the ones with BHs is rather high, FNStoBH∼ 10-50, with the more likely formation models providing the values at the high end. The ratio is a natural outcome of (1) the stellar initial mass function that produces more NSs than BHs and (2) common envelope evolution (i.e., a major mechanism involved in the formation of interacting binaries) that naturally selects progenitors of Be X-ray binaries with NSs (binaries with comparable mass components have more likely survival probabilities) over ones with BHs (which are much more likely to be common envelope mergers). A comparison of this ratio (i.e., FNStoBH∼ 30) with the number of confirmed Be-NS X-ray binaries (42) indicates that the expected number of Be-BH X-ray binaries is of the order of only ∼0-2. This is entirely consistent with the observed Galactic sample.

Abstract Copyright:

Journal keyword(s): binaries: close - black hole physics - stars: evolution - stars: neutron

Simbad objects: 70

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Number of rows : 70

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * gam Cas Be* 00 56 42.5317 +60 43 00.265 1.18 2.29 2.39 2.32 2.40 B0.5IVpe 1153 2
2 V* V635 Cas HXB 01 18 31.9704429246 +63 44 33.071137750 17.05 16.64 15.19 14.34 13.22 B0.2Ve 675 0
3 2MASS J01354986+6612433 HXB 01 35 49.8564105027 +66 12 43.282005994   14.72 13.31 12.32 11.37 B1Ve 29 0
4 EM* GGA 104 HXB 01 47 00.2121223849 +61 21 23.661992704 11.76 12.09 11.366 11.00 10.52 B1IIIe 173 0
5 2MASS J01581848+6713234 HXB 01 58 18.4910576029 +67 13 23.459737878 15.74 15.65 14.43 13.44 12.55 B2IVe+ 24 0
6 LS I +61 303 HXB 02 40 31.6641883136 +61 13 45.591138110 11.27 11.61 10.75 10.19 9.55 B0Ve 778 2
7 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5935 1
8 V* BQ Cam HXB 03 34 59.9116460415 +53 10 23.296351781   17.16 15.42 14.26 13.04 O8.5Ve 412 1
9 V* X Per HXB 03 55 23.0778791365 +31 02 45.045745259 6.090 6.840 6.720     O9.5III 921 0
10 LS V +44 17 HXB 04 40 59.3295352454 +44 31 49.258751047 11.02 11.42 10.73 10.28 9.76 B0.2Ve 101 0
11 HD 34921 HXB 05 22 35.2312215793 +37 40 33.640277173 6.78 7.64 7.48     B0IVpe 116 0
12 HD 245770 HXB 05 38 54.5749436467 +26 18 56.839215267 9.30 9.84 9.39 8.77 8.30 O9/B0III/Ve 888 0
13 HD 249179 HXB 05 55 55.0408711373 +28 47 06.429887265   10.11 10.00     B5ne 33 1
14 IGR J06074+2205 HXB 06 07 26.6120418797 +22 05 47.759512772   12.85 12.21 11.80 11.32 B0.5Ve 32 1
15 PSR J0635+0533 Psr 06 35 17.4 +05 33 21   13.81 12.83     B1IIIe-B2Ve 40 0
16 2E 1752 HXB 06 58 17.2878555250 -07 12 35.203675058   12.38 10.9 11.40   O9.7Ve 73 0
17 V* V441 Pup HXB 07 28 53.5787769417 -26 06 28.895160996 11.27 12.29 11.83 11.53   O5Ve 69 0
18 HD 63666 HXB 07 47 23.5848135213 -53 19 56.823858254   7.60 7.60     B7IV/V 27 0
19 1H 0749-600 HXB 07 50 14 -60 11.8           B8IIIe 8 0
20 V* V572 Pup HXB 08 12 28.3576629560 -31 14 52.138780764 12.14 13.03 12.74 12.44   B0.2IVe 62 0
21 Ginga 0834-430 HXB 08 35 55 -43 11.1     20.4     B0-2III-Ve 93 0
22 GRO J1008-571 HXB 10 09 46.9645132055 -58 17 35.603669270       14.63   B0e 187 0
23 LS 1698 HXB 10 37 35.3144388592 -56 47 55.866836619   12.00 11.48 11.38   B0III/V:e 96 0
24 WRAY 15-793 HXB 11 20 57.1736252056 -61 55 00.165172193 12.81 13.06 12.12     O9.5III/Ve 178 0
25 IGR J11435-6109 HXB 11 44 00.2944630617 -61 07 36.482240268       15.70   B2III/B0V 46 1
26 HD 102567 Be* 11 48 00.0214627917 -62 12 24.900348093 8.24 9.06 9.00 9.62   O/Bne 294 0
27 HD 109857 Be* 12 39 14.57557 -75 22 14.1384 6.33         B8Vn 58 0
28 HD 110432 Be* 12 42 50.2655719413 -63 03 31.048323668 4.79 5.58 5.31     B0.5IVpe 277 0
29 * mu.02 Cru Be* 12 54 36.8837228156 -57 10 07.196143361 4.59 5.09 5.20 5.00 5.06 B5Vne 161 0
30 V* V850 Cen HXB 13 01 17.0966951298 -61 36 06.636402972   15.6 14.40     B2Vne 283 0
31 1RXP J130159.6-635806 Psr 13 01 58.7203639191 -63 58 08.830169485           O9V/B1III 52 0
32 CPD-63 2495 HXB 13 02 47.6541729594 -63 50 08.625922862 10.34 10.72 9.98 10.03   O9.5Ve 699 0
33 SAX J1324.4-6200 HXB 13 24 26.70 -62 01 19.5           Be? 20 0
34 HD 119682 Be* 13 46 32.5707617771 -62 55 24.153203600 7.26 7.978 7.901 8.72   B0Ve 55 0
35 4U 1416-62 HXB 14 21 12.8 -62 41 54   17.9 17.2     B1Ve 126 0
36 SAX J1452.8-5949 HXB 14 52 52.70 -59 49 08.1           Be? 18 0
37 [KRL2007b] 171 HXB 15 44 02 -56 42.7           Be? 51 0
38 ESO 136-6 Sy2 15 53 35.3833307721 -61 40 59.023287820           ~ 36 0
39 HD 141926 Be* 15 54 21.7677314365 -55 19 44.309668396 8.71 9.47 9.13 9.38   B2IIIn 60 0
40 2S 1553-542 HXB 15 57 49.00 -54 24 54.0           Be 98 0
41 CXOU J162046.2-513006 HXB 16 20 46.2655398336 -51 30 06.046848280   18.9   16.28 13.4 B8IIIe 57 0
42 SWIFT J1626.5-5156 HXB 16 26 36.5197160119 -51 56 30.599836308       16.03 14.59 B0V 68 0
43 IGR J16318-4848 HXB 16 31 48.3102815892 -48 49 00.664215918           ~ 159 0
44 2XMMi J170004.2-415804 HXB 17 00 04.26 -41 58 04.7           Be? 19 0
45 RX J1739.4-2942 LXB 17 39 29.87 -29 42 10.7           Be? 33 0
46 HD 161103 Be* 17 44 45.7657852846 -27 13 44.482410725 8.44 9.23 9.13 9.12   B0.5III/IVe 74 0
47 2XMM J174912.3-272537 HXB 17 49 12.28 -27 25 37.4           B3 31 0
48 GRO J1750-27 HXB 17 49 12.969 -26 38 38.93           Be? 54 1
49 2MASS J18081689-1919395 HXB 18 08 16.893 -19 19 39.56           Be? 3 0
50 4FGL J1821.1-1422 HXB 18 20 29.5 -14 34 24           O9.5-B0Ve 56 1
51 IGR J18246-1425 HX? 18 24 28 -14 26.3           Be? 16 0
52 2MASS J18332777-1035243 HXB 18 33 27.7663679366 -10 35 24.440275505     11.9     B0.5Ve 23 0
53 1XMM J183328.7-102409 * 18 33 28.7 -10 24 09           B1-1.5IIIe 1 0
54 2MASS J18453684+0051474 HXB 18 45 36.8356137141 +00 51 47.438374606     20.6     B0-2IV-Ve 104 0
55 4U 1850-03 HXB 18 48 17.7 -02 25 13           Be? 98 1
56 XTE J1858+034 HXB 18 58 43 +03 26.3           ~ 71 0
57 4U 1901+03 HXB 19 03 39.3919805263 +03 12 15.742327187           OB 77 0
58 XTE J1906+090 HXB 19 04 47.491 +09 02 41.40           Be? 24 0
59 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2368 0
60 1H 1936+541 * 19 37 50 +54 14.2           Be 10 0
61 XTE J1946+274 HXB 19 45 39.3569004855 +27 21 55.502556930   18.76 16.92 15.62 14.38 B0-1IV-Ve 105 0
62 2MASS J19493548+3012317 HXB 19 49 35.4840244577 +30 12 31.775034731   15.16 14.22 13.53 12.88 B0Ve 141 1
63 NAME W63 X-1 XB* 20 19 +45.7           Be? 3 0
64 BD+47 3129 HXB 20 30 30.8457252623 +47 51 50.718662840 8.95 9.594 9.273 9.273   B0.5III/IVe 34 0
65 V* V2246 Cyg HXB 20 32 15.2744631713 +37 38 14.839930326   22.16 19.41 17.32 15.18 B0Ve 385 0
66 GRO J2058+42 HXB 20 58 47.5371693693 +41 46 37.180557326   15.97 14.74 14.74 13.35 O9.5-B0IV-Ve 64 0
67 GSC 03588-00834 HXB 21 03 35.7101268891 +45 45 05.568943629   15.34 14.20 13.49 12.75 B0Ve 154 0
68 V* V490 Cep HXB 21 39 30.6903601561 +56 59 10.421972716   15.2       B1.5Ve 134 1
69 BD+49 3718 HXB 22 01 38.2020869992 +50 10 04.633112055 8.95 9.47 9.31     Be 37 0
70 4U 2238+60 HXB 22 39 20.8444678371 +61 16 26.607919757   16.26 14.80 13.89 12.92 Be 44 0

    Equat.    Gal    SGal    Ecl

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2021.05.17-04:13:37

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