2003A&A...403..901S


Query : 2003A&A...403..901S

2003A&A...403..901S - Astronomy and Astrophysics, volume 403, 901-916 (2003/6-1)

XMM-Newton observations of high mass X-ray binaries in the SMC.

SASAKI M., PIETSCH W. and HABERL F.

Abstract (from CDS):

Based on XMM-Newton EPIC data of four pointings towards the Small Magellanic Cloud (SMC), results on timing and spectral analyses of 16 known high mass X-ray binaries (HMXBs) and HMXB candidates in the SMC are presented. We confirm the pulse periods of four sources which were known to show pulsations. In addition, two new X-ray pulsars are discovered: XMMUJ005605.2-722200 with Ppulse=140.1±0.3s and RXJ0057.8-7207 with Ppulse=152.34±0.05s. Due to the low Galactic foreground absorption, X-ray binary systems in the Magellanic Clouds are well suited for studies of the soft component in their X-ray spectrum. Spectral analysis reveals soft emission besides a power law component in the spectra of three sources. The existence of emission lines in at least one of them corroborates the thermal nature of this emission with temperatures of 0.2-0.3keV and heavy element abundances lower than solar. For the HMXB SMCX-2 which was in a low luminosity state, we determine a flux upper limit of 1.5x10–14erg/cm2/s (0.3-10.0keV). Furthermore, two new sources (XMMUJ005735.7-721932 and XMMUJ010030.2-722035) with hard spectrum and emission line objects as likely optical counterparts are proposed as new X-ray binary candidates.

Abstract Copyright:

Journal keyword(s): X-rays: galaxies - X-rays: binaries - stars: neutron - Magellanic Clouds

Nomenclature: Table 2: [SPH2003] NNa (Nos 1-18, 6a, 10a, 13a, 14a, 15a).

CDS comments: Table 2: Numbering in col(2) is the observation ID, not used in SIMBAD.

Simbad objects: 30

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Number of rows : 30
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 RX J0051.7-7341 HXB 00 51 42.7 -73 41 51           ~ 5 0
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 10197 1
3 X SMC X-2 HXB 00 54 33.43 -73 41 01.3 13.77 16.40 16.38   14.67 O9.5III-V 117 0
4 [MA93] 810 HXB 00 54 56.1754603176 -72 26 47.859057060 14.17 15.24 15.28   15.11 O9V 70 0
5 [MA93] 904 HXB 00 56 05.5347974352 -72 21 59.452153740   15.84 15.88     B1V 31 0
6 2E 0055.6-7241 EmG 00 57 27.2 -72 25 01           ~ 12 0
7 [SPH2003] 6a HXB 00 57 35.56 -72 19 36.8           ~ 1 0
8 [MA93] 1020 HXB 00 57 36.0162576624 -72 19 34.056483744 14.89 15.95 15.97 15.79 15.791 B0/4e 39 0
9 [YIT2000] 19 X 00 57 39 -72 19.4           ~ 3 0
10 [MA93] 1036 HXB 00 57 49.5745148088 -72 02 35.873596896   15.52 15.64     B0-B2III-V 52 0
11 [MA93] 1038 HXB 00 57 50.3868809664 -72 07 56.130650112 14.63 15.64 15.69   15.47 B1-2(Be-Fe) 39 0
12 RX J0058.2-7231 HXB 00 58 12.5869662000 -72 30 48.759613812 13.91 14.98 14.87   14.62 B0IIIe 58 0
13 RX J0059.2-7138 HXB 00 59 12.7444006824 -71 38 44.962383408   14.07 14.01 14.36   B1-B1.5II-III 80 0
14 SXP 202 HXB 00 59 21.0398312736 -72 23 17.305459368 13.81 14.96 14.97   15.07 B0-B1V 38 0
15 RX J0100.2-7204 HXB 01 00 15.752 -72 04 43.40   22.39 21.32     ~ 10 0
16 LIN 365 HXB 01 00 30.0419190960 -72 20 33.457757496   14.53 14.6     B1.5e 19 0
17 [MA93] 1240 HXB 01 01 02.8880678424 -72 06 58.964665824   15.68 15.72 15.52   B0-B2III-V 45 0
18 [SPH2003] 13a HXB 01 01 03.87 -72 07 02.4           ~ 1 0
19 [MA93] 1257 HXB 01 01 20.6635900032 -72 11 18.965108724 14.41 15.36 15.49   15.53 B0.5-B2IV-V 45 0
20 RX J0101.6-7204 HXB 01 01 29.80 -72 04 02.0   16.4 17.7     Be 16 0
21 [MA93] 1277 Em* 01 01 36.8929963272 -72 04 15.009765564   15.42 16.3     B1V 8 0
22 [SPH2003] 15a HXB 01 01 37.77 -72 04 22.1           ~ 1 0
23 [MA93] 1367 HXB 01 03 13.9173060552 -72 09 14.258500452   14.70 14.79 15.0   B0.5IV-V 87 2
24 [MA93] 1393 HXB 01 03 37.5349856136 -72 01 33.204096336   14.54 14.65     B0III-V 61 0
25 [MA93] 1557 HXB 01 05 55.4 -72 03 49 14.63 15.61 15.63 15.54   ~ 23 0
26 SK 160 HXB 01 17 05.1457288392 -73 26 36.014808156 12.23 13.00 13.15   13.17 O9.7Ia+ 821 0
27 RX J0531.2-6609 HXB 05 31 13.3008 -66 07 05.006     14.4     B0.7Ve 53 1
28 X LMC X-4 HXB 05 32 49.5556042296 -66 22 13.202721768   13.9 14.0     O8III 627 0
29 V* V779 Cen HXB 11 21 15.0920532528 -60 37 25.630264596   14.4 12.27     O9III/Veq 1025 0
30 V* HZ Her LXB 16 57 49.8110126616 +35 20 32.486555472 11.90 14.89 13.63 13.88   B3/6ep 1988 0

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2022.05.24-12:01:06

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