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

C.D.S. - SIMBAD4 rel 1.7 - 2021.01.22CET23:21:13

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

Full paper

View the reference in ADS

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 - 2021	#notes
1	M 31	G	00 42 44.330	+41 16 07.50	4.86	4.36	3.44			~	11155	1
2	4U 0513-40	LXB	05 14 06.59	-40 02 37.0						~	154	1
3	M 1	SNR	05 34 31.94	+22 00 52.2						~	5685	4
4	V* V1055 Ori	LXB	06 17 07.3	+09 08 13		18.80	18.5			~	518	1
5	V* GR Mus	LXB	12 57 37.153	-69 17 18.98		19.40	19.1			~	242	0
6	NAME Centaurus A	Sy2	13 25 27.61509104	-43 01 08.8056025		8.18	6.84	6.66		~	4055	3
7	V* BR Cir	HXB	15 20 40.85	-57 10 00.1		21.4	21.4			~	730	1
8	V* QU TrA	LXB	15 47 54.6	-62 34 06						~	130	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	1539	0
11	NAME Big Dipper	LXB	16 28 05.5318316228	-49 12 40.011030945						~	209	0
12	V* KZ TrA	LXB	16 32 16.79	-67 27 39.3	17.40	18.60	18.5			~	528	1
13	V* V801 Ara	LXB	16 40 55.5979962948	-53 45 04.953475039	17.50	18.20	17.5		17.07	~	795	1
14	4U 1642-45	LXB	16 45 47.7	-45 36 40			14.30			~	385	1
15	V* V1101 Sco	LXB	17 05 44.4915929414	-36 25 23.049863107		20.10	18.6			~	411	0
16	X Ara X-1	LXB	17 06 15.314	-43 02 08.69						~	242	1
17	4U 1705-32	LXB	17 08 54.40	-32 18 57.5						~	52	0
18	4U 1708-40	LXB	17 12 23.83	-40 50 34.0						~	58	0
19	4U 1722-30	LXB	17 27 33.25	-30 48 07.4			12.50			~	238	1
20	V* V2216 Oph	LXB	17 31 44.17	-16 57 40.9	16.40	17.10	16.8			~	264	1
21	V* V2116 Oph	Sy*	17 32 02.1544831482	-24 44 44.125962969		20.78	18.4			M6IIIe	650	1
22	V* V926 Sco	LXB	17 38 58.3	-44 27 00	16.90	17.70	17.5			~	429	0
23	NAME Gal Center	reg	17 45 40.04	-29 00 28.1						~	11932	0
24	2E 3943	LXB	17 46 05.20	-29 30 53.3						~	190	1
25	X Sgr X-1	LXB	17 47 56.0	-26 33 49						~	350	0
26	4U 1746-371	LXB	17 50 12.66	-37 03 08.2			8.43			~	183	1
27	4U 1758-25	LXB	18 01 09.7308941918	-25 04 44.128444504			11.08			~	621	1
28	X Sgr X-3	LXB	18 01 32.3	-20 31 44						~	220	1
29	V* V5512 Sgr	LXB	18 14 31.55	-17 09 26.7			12.73			K5III	357	0
30	4U 1812-12	LXB	18 15 06.15	-12 05 46.7						~	105	2
31	V* NP Ser	LXB	18 16 01.389	-14 02 10.62		18.8				K	603	2
32	X Sgr X-4	LXB	18 23 40.57	-30 21 40.6		19.06	18.81			~	916	1
33	4U 1823-00	LXB	18 25 22.02	-00 00 43.0		23.00	22			~	82	0
34	V* V691 CrA	LXB	18 25 46.8186056396	-37 06 18.529015318	14.30	15.20	15.1			~	402	0
35	V* V4634 Sgr	LXB	18 29 28.2	-23 47 49	18.90	19.40	19			~	294	0
36	V* MM Ser	LXB	18 39 57.56	+05 02 09.6		19.2	19.2			~	325	0
37	4U 1850-086	LXB	18 53 04.89	-08 42 19.7	20.40	21.20	21.0			~	234	1
38	Granat 1915+105	HXB	19 15 11.55576	+10 56 44.9052						~	2332	0
39	V* V1405 Aql	LXB	19 18 47.871	-05 14 17.09	20.90	21.40	21.0			~	442	0
40	V* V1341 Cyg	LXB	21 44 41.1544523872	+38 19 17.065856122	15.00	15.13	14.68	15.00		A9III	1086	1
41	NAME Galactic Bulge	reg	~	~						~	3518	0

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