2010MNRAS.402L..16K

Query : 2010MNRAS.402L..16K

2010MNRAS.402L..16K - Mon. Not. R. Astron. Soc., 402, L16-L20 (2010/February-2)

Very long-term X-ray variations in LMXBs: solar cycle-like variations in the donor ?

KOTZE M.M. and CHARLES P.A.

Abstract (from CDS):

Long-term monitoring of Low Mass X-ray Binaries (LMXBs) by the All Sky Monitor on board the Rossi X-ray Timing Explorer now covers ∼13yr and shows that certain LMXB types display very long-term (approximately several to tens of years) quasi-periodic modulations. These time-scales are much longer than any `super-orbital' periods reported hitherto and likely have a different origin. We suggest here that they are due to long-term variations in the mass-transfer rate from the donor, which are a consequence of solar-like magnetic cycles that lead to Porb changes (as proposed by Richman, Applegate & Patterson for similar long-term variations in cataclysmic variables). Atoll sources display much larger amplitude modulations than Z sources over these time-scales, presumably because Z sources are Eddington limited and hence unable to respond as readily as Atoll sources to fluctuations in the mass-transfer rate from the donor.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): accretion, accretion discs - binaries: close - stars: magnetic fields - stars: neutron - novae, cataclysmic variables - X-rays: binaries

Simbad objects: 44

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Number of rows : 44
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 X LMC X-2 LXB 05 20 29.0 -71 57 33 17.20 18.00 18.0     ~ 189 0
2 V* V1055 Ori LXB 06 17 07.3565603963 +09 08 13.515857360   18.80 18.5     ~ 594 1
3 V* GR Mus LXB 12 57 37.1833002949 -69 17 18.996899563   19.40 19.1     ~ 275 0
4 V* BR Cir HXB 15 20 40.8532547060 -57 10 00.206639033   21.4 21.4     B5-A0I 849 1
5 V* IL Lup HXB 15 47 08.2768672752 -47 40 10.284587760         15.624 ~ 532 1
6 V* V381 Nor HXB 15 50 58.6637920704 -56 28 35.258385000           K3III 1254 0
7 V* LU TrA LXB 16 01 02.4 -60 44 19 18.35 19.05 18.6     ~ 90 0
8 V* QX Nor LXB 16 12 43.0 -52 25 26           ~ 946 1
9 V* V818 Sco LXB 16 19 55.0692669024 -15 38 25.017666540 11.60 12.40 11.1     Oev 1730 0
10 4U 1624-49 LXB 16 28 02.825 -49 11 54.61           ~ 250 0
11 X Nor X-1 LXB 16 34 01.610 -47 23 34.80           ~ 579 0
12 V* V801 Ara LXB 16 40 55.5976953528 -53 45 04.948107156 17.50 18.20 17.5   17.07 ~ 921 0
13 4U 1642-45 LXB 16 45 48.1 -45 36 42           ~ 467 1
14 V* V1033 Sco HXB 16 54 00.1423963019 -39 50 44.761701340       16.14   F3-6IV 1980 0
15 V* HZ Her LXB 16 57 49.8110126616 +35 20 32.486555472 11.90 14.89 13.63 13.88   B3/6ep 2172 0
16 [KRL2007b] 214 LXB 17 00 58.46 -46 11 08.6           ~ 296 0
17 V* V821 Ara LXB 17 02 49.3876391280 -48 47 23.087954544         15.322 ~ 2237 0
18 V* V1101 Sco LXB 17 05 44.4916006152 -36 25 23.049324480   20.10 18.6     ~ 473 0
19 X Ara X-1 LXB 17 06 15.2 -43 02 11           ~ 296 1
20 1RXS J170855.6-440653 LXB 17 08 54.346 -44 06 08.38           ~ 406 1
21 4U 1708-40 LXB 17 12 23.6 -40 50 36           ~ 70 0
22 4U 1722-30 LXB 17 27 33.25 -30 48 07.4     12.50     ~ 278 1
23 V* V2216 Oph LXB 17 31 44.17 -16 57 40.9 16.40 17.10 16.8     ~ 329 1
24 NAME Slow Burster LXB 17 31 58.0 -33 49 58     15.50     ~ 865 1
25 NAME Rapid Burster LXB 17 33 24.0 -33 23 19           ~ 429 2
26 KS 1731-260 LXB 17 34 13.46 -26 05 18.6       22.8 20.9 ~ 437 0
27 V* V926 Sco LXB 17 38 58.2384053021 -44 27 00.699118812 16.90 17.70 17.5     ~ 480 0
28 NAME XTE J17464-3213 LXB 17 46 15.59637 -32 14 00.8600           ~ 805 0
29 X Sgr X-1 LXB 17 47 56.3 -26 33 47           ~ 402 0
30 4U 1746-371 LXB 17 50 12.66 -37 03 08.2     8.43     ~ 206 1
31 4U 1758-25 LXB 18 01 09.7308060816 -25 04 44.120221284     11.08     ~ 705 1
32 X Sgr X-3 LXB 18 01 32.6 -20 31 45           ~ 254 1
33 V* V5512 Sgr LXB 18 14 31.3 -17 09 23     12.73     K5III 449 0
34 V* NP Ser LXB 18 16 01.7 -14 02 09   18.8       K 683 2
35 X Sgr X-4 LXB 18 23 40.57 -30 21 40.6   19.06 18.81     ~ 1056 1
36 4U 1823-00 LXB 18 25 22.3 -00 00 41   23.00 22     ~ 95 0
37 V* V691 CrA LXB 18 25 46.8185061768 -37 06 18.529336656 14.30 15.20 15.1     ~ 461 0
38 V* V4634 Sgr LXB 18 29 28.8 -23 47 48 18.90 19.40 19     ~ 399 0
39 V* MM Ser LXB 18 39 57.8 +05 02 13   19.2 19.2     ~ 378 0
40 V* V406 Vul HXB 18 58 41.49127200 +22 39 29.7746640           G5V-K0V 409 0
41 X Aql X-1 LXB 19 11 16.0571313336 +00 35 05.868232692           ~ 1186 1
42 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2810 0
43 V* V1408 Aql LXB 19 59 24.0074252040 +11 42 29.859773292 18.40 18.97 18.95 18.70 18.66 ~ 234 0
44 V* V1341 Cyg LXB 21 44 41.1544345272 +38 19 17.066570988 15.00 15.13 14.68 15.00   A9III 1229 1

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