2011A&A...526A..94R


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.10CET11:18:49

2011A&A...526A..94R - Astronomy and Astrophysics, volume 526A, 94-94 (2011/2-1)

On the nature of the break in the X-ray luminosity function of low-mass X-ray binaries.

REVNIVTSEV M., POSTNOV K., KURANOV A. and RITTER H.

Abstract (from CDS):

We analyze a flux-limited sample of persistent and bright (with 2-10keV fluxes exceeding 1.4x10–10erg/s/cm2) low-mass X-ray binaries (LMXBs) in our Galaxy. It is demonstrated that the majority of binary systems with X-ray luminosities below logL(erg/s)∼37.3 have unevolved secondary companions (except for those with white dwarf donors), while systems with higher X-ray luminosity harbor predominantly giant donors. Mass transfer in binary systems with giants significantly shortens their lifetime thus steepening the X-ray luminosity function of LMXBs at high luminosity. We argue that this is why the LMXB luminosity function constructed from observations of sources in our and distant galaxies demonstrates a break at logL(erg/s)∼37.3.

Abstract Copyright:

Journal keyword(s): binaries: general - stars: low-mass - stars: luminosity function, mass function - stars: neutron - X-rays: stars

Simbad objects: 41

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Number of rows : 41

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 10608 1
2 4U 0513-40 LXB 05 14 06.59 -40 02 37.0           ~ 148 1
3 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5492 4
4 V* V1055 Ori LXB 06 17 07.3 +09 08 13   18.80 18.5     ~ 503 1
5 V* GR Mus LXB 12 57 37.153 -69 17 18.98   19.40 19.1     ~ 239 0
6 NAME Centaurus A Sy2 13 25 27.61509104 -43 01 08.8056025   8.18 6.84 6.66   ~ 3904 3
7 V* BR Cir HXB 15 20 40.85 -57 10 00.1   21.4 21.4     ~ 710 1
8 V* QU TrA LXB 15 47 54.6 -62 34 06           ~ 126 0
9 V* LU TrA LXB 16 01 02.3 -60 44 18 18.35 19.05 18.6     ~ 79 0
10 V* V818 Sco LXB 16 19 55.0688745859 -15 38 25.019920749 11.60 12.40 11.1     Oev 1515 0
11 NAME Big Dipper LXB 16 28 05.5318316228 -49 12 40.011030945           ~ 204 0
12 V* KZ TrA LXB 16 32 16.79 -67 27 39.3 17.40 18.60 18.5     ~ 521 1
13 V* V801 Ara LXB 16 40 55.5 -53 45 05 17.50 18.20 17.5     ~ 775 1
14 4U 1642-45 LXB 16 45 47.7 -45 36 40           ~ 376 1
15 V* V1101 Sco LXB 17 05 44.4915929414 -36 25 23.049863107   20.10 18.6     ~ 402 0
16 X Ara X-1 LXB 17 06 15.314 -43 02 08.69           ~ 229 1
17 4U 1705-32 LXB 17 08 54.40 -32 18 57.5           ~ 50 0
18 4U 1708-40 LXB 17 12 23.83 -40 50 34.0           ~ 57 0
19 4U 1722-30 LXB 17 27 33.25 -30 48 07.4           ~ 231 1
20 V* V2216 Oph LXB 17 31 44.17 -16 57 40.9 16.40 17.10 16.8     ~ 260 1
21 V* V2116 Oph Sy* 17 32 02.1544831482 -24 44 44.125962969   20.78 18.4     M6IIIe 644 1
22 V* V926 Sco LXB 17 38 58.3 -44 27 00 16.90 17.70 17.5     ~ 422 0
23 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11082 0
24 2E 3943 LXB 17 46 05.20 -29 30 53.3           ~ 188 1
25 X Sgr X-1 LXB 17 47 56.0 -26 33 49           ~ 342 0
26 4U 1746-371 LXB 17 50 12.66 -37 03 08.2           ~ 180 1
27 4U 1758-25 LXB 18 01 09.7308941918 -25 04 44.128444504           ~ 609 1
28 X Sgr X-3 LXB 18 01 32.3 -20 31 44           ~ 217 1
29 V* V5512 Sgr LXB 18 14 31.55 -17 09 26.7           K5III 347 0
30 4U 1812-12 LXB 18 15 06.15 -12 05 46.7           ~ 103 2
31 V* NP Ser LXB 18 16 01.389 -14 02 10.62   18.8       K 595 2
32 X Sgr X-4 LXB 18 23 40.57 -30 21 40.6   19.06 18.81     ~ 891 1
33 4U 1823-00 LXB 18 25 22.02 -00 00 43.0   23.00 22     ~ 81 0
34 V* V691 CrA LXB 18 25 46.8186056396 -37 06 18.529015318 14.30 15.20 15.1     ~ 396 0
35 V* V4634 Sgr LXB 18 29 28.2 -23 47 49 18.90 19.40 19     ~ 280 0
36 V* MM Ser LXB 18 39 57.56 +05 02 09.6   19.2 19.2     ~ 315 0
37 4U 1850-086 LXB 18 53 04.89 -08 42 19.7 20.40 21.20 21.0     ~ 228 1
38 Granat 1915+105 LXB 19 15 11.54938 +10 56 44.7585           ~ 2237 0
39 V* V1405 Aql LXB 19 18 47.871 -05 14 17.09 20.90 21.40 21.0     ~ 434 0
40 V* V1341 Cyg WV* 21 44 41.1544523872 +38 19 17.065856122 15.00 15.20 14.7     A9III 1060 0
41 NAME Galactic Bulge reg ~ ~           ~ 3261 0

    Equat.    Gal    SGal    Ecl

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2019.12.10-11:18:49

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