2008ApJ...685..436A


Query : 2008ApJ...685..436A

2008ApJ...685..436A - Astrophys. J., 685, 436-450 (2008/September-3)

X-ray time variability across the atoll source states of 4U 1636-53.

ALTAMIRANO D., VAN DER KLIS M., MENDEZ M., JONKER P.G., KLEIN-WOLT M. and LEWIN W.H.G.

Abstract (from CDS):

We have studied the rapid X-ray time variability in 149 pointed observations with the Rossi X-Ray Timing Explorer (RXTE)'s Proportional Counter Array of the atoll source 4U 1636-53 in the banana state and, for the first time with RXTE, in the island state. We compare the frequencies of the variability components of 4U 1636-53 with those in other atoll and Z sources and find that 4U 1636-53 follows the universal scheme of correlations previously found for other atoll sources at (sometimes much) lower luminosities. Our results on the hectohertz QPO suggest that the mechanism that sets its frequency differs from that for the other components, while the amplitude-setting mechanism is common. A previously proposed interpretation of the narrow low-frequency QPO frequencies in different sources in terms of harmonic mode switching is not supported by our data or by previous data on other sources, and the frequency range that this QPO covers is found to be unrelated to spin, angular momentum, or luminosity.

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Journal keyword(s): Accretion, Accretion Disks - Stars: Binaries: Close - Stars: Individual: Alphanumeric: 4U 0614+09 - Stars: Individual: Alphanumeric: 4U 1608-52 - Stars: Individual: Alphanumeric: 4U 1636-53 - Stars: Individual: Alphanumeric: 4U 1728-34 - Stars: Individual: Alphanumeric: 4U 1820-30 - Stars: Neutron - X-Rays: Stars

VizieR on-line data: <Available at CDS (J/ApJ/685/436): table2.dat>

Simbad objects: 26

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Number of rows : 26
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 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
2 V* V1055 Ori LXB 06 17 07.3565603963 +09 08 13.515857360   18.80 18.5     ~ 594 1
3 V* BW Ant LXB 09 29 20.19 -31 23 03.2   18.50 18.63     ~ 194 0
4 V* QX Nor LXB 16 12 43.0 -52 25 26           ~ 946 1
5 V* V818 Sco LXB 16 19 55.0692669024 -15 38 25.017666540 11.60 12.40 11.1     Oev 1730 0
6 X Nor X-1 LXB 16 34 01.610 -47 23 34.80           ~ 579 0
7 V* V801 Ara LXB 16 40 55.5976953528 -53 45 04.948107156 17.50 18.20 17.5   17.07 ~ 921 0
8 4U 1642-45 LXB 16 45 48.1 -45 36 42           ~ 467 1
9 V* V1033 Sco HXB 16 54 00.1423963019 -39 50 44.761701340       16.14   F3-6IV 1980 0
10 V* V821 Ara LXB 17 02 49.3876391280 -48 47 23.087954544         15.322 ~ 2237 0
11 V* V1101 Sco LXB 17 05 44.4916006152 -36 25 23.049324480   20.10 18.6     ~ 473 0
12 4U 1722-30 LXB 17 27 33.25 -30 48 07.4     12.50     ~ 278 1
13 NAME Slow Burster LXB 17 31 58.0 -33 49 58     15.50     ~ 865 1
14 NAME Rapid Burster LXB 17 33 24.0 -33 23 19           ~ 429 2
15 1ES 1735-26.9 LXB 17 38 17.6 -26 59 39           ~ 177 0
16 4U 1758-25 LXB 18 01 09.7308060816 -25 04 44.120221284     11.08     ~ 705 1
17 [KRL2007b] 304 LXB 18 06 59.8 -29 24 30           ~ 228 0
18 SAX J1808.4-3658 LXB 18 08 27.58 -36 58 43.9           ~ 1051 0
19 V* V5511 Sgr LXB 18 13 39.03 -33 46 22.3   18.61 18.33 18.05   ~ 215 0
20 V* NP Ser LXB 18 16 01.7 -14 02 09   18.8       K 683 2
21 X Sgr X-4 LXB 18 23 40.57 -30 21 40.6   19.06 18.81     ~ 1056 1
22 V* V4634 Sgr LXB 18 29 28.8 -23 47 48 18.90 19.40 19     ~ 399 0
23 X Aql X-1 LXB 19 11 16.0571313336 +00 35 05.868232692           ~ 1186 1
24 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2810 0
25 HD 226868 HXB 19 58 21.6757355952 +35 12 05.784512688 9.38 9.72 8.91 8.42   O9.7Iabpvar 4590 0
26 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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