2022A&A...661A..25H


Query : 2022A&A...661A..25H

2022A&A...661A..25H - Astronomy and Astrophysics, volume 661A, 25-25 (2022/5-1)

eROSITA calibration and performance verification phase: High-mass X-ray binaries in the Magellanic Clouds.

HABERL F., MAITRA C., CARPANO S., DAI X., DOROSHENKO V., DENNERL K., FREYBERG M.J., SASAKI M., UDALSKI A., POSTNOV K.A. and SHAKURA N.I.

Abstract (from CDS):


Context. During its performance verification phase, the soft X-ray instrument eROSITA on board the Spektrum-Roentgen-Gamma (SRG) spacecraft observed large regions in the Magellanic Clouds in which almost 40 known high-mass X-ray binaries (HMXBs, including candidates) are located.
Aims. We looked for new HMXBs in the eROSITA data, searched for pulsations in HMXB candidates, and investigated the long-term behaviour of the full sample using archival X-ray and optical data.
Methods. For sufficiently bright sources, we performed a detailed spectral and temporal analysis of their eROSITA data. A source detection analysis of the eROSITA images in different energy bands provided count rates and upper limits for the remaining sources.
Results. We report the discovery of a new Be/X-ray binary in the Large Magellanic Cloud. The transient SRGEt J052829.5-690345 was detected with a 0.2-8.0 keV luminosity of∼1035 erg s–1. It exhibits a hard X-ray spectrum, typical for this class of HMXBs. The OGLE I-band light curve of the V∼15.7mag counterpart shows large variations up to 0.75 mag, which occur with a quasi-period of∼511 days. The eROSITA observations of the Small Magellanic Cloud covered 16 Be/X-ray binary pulsars, 5 of which were bright enough for an accurate determination of their current pulse period. The pulse periods for SXP 726 and SXP 1323 measured from eROSITA data are∼800 s and∼1006 s, respectively, which is very different from their discovery periods. Including archival XMM-Newton observations, we update the spin-period history of the two long-period pulsars, which have shown nearly linear trends in their period evolution for more than 15 yr. The corresponding average spin-down rate for SXP 726 is 4.3 s yr–1, while SXP 1323 has a spin-up rate of -23.2 s yr–1. We discuss the spin evolution of the two pulsars in the framework of quasi-spherical accretion.

Abstract Copyright: © F. Haberl et al. 2022

Journal keyword(s): stars: emission-line, Be - stars: neutron - X-rays: binaries - galaxies: clusters: individual: LMC - galaxies: clusters: individual: SMC

Simbad objects: 52

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Number of rows : 52
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 10314 1
2 XMMU J005605.8-720012 HXB 00 56 05.481 -72 00 11.11           B2-B3Ve 5 1
3 [MA93] 1020 HXB 00 57 36.0162576624 -72 19 34.056483744 14.89 15.95 15.97 15.79 15.791 B0/4e 40 0
4 [MA93] 1036 HXB 00 57 49.5745148088 -72 02 35.873596896   15.52 15.64     B0-B2III-V 53 0
5 [MA93] 1038 HXB 00 57 50.3868809664 -72 07 56.130650112 14.63 15.64 15.69   15.47 B1-2(Be-Fe) 40 0
6 RX J0057.9-7156 HXB 00 57 58.2 -71 56 26   17.1       ~ 9 0
7 RX J0059.2-7138 HXB 00 59 12.7444006824 -71 38 44.962383408   14.07 14.01 14.36   B1-B1.5II-III 81 0
8 SXP 202 HXB 00 59 21.0398312736 -72 23 17.305459368 13.81 14.96 14.97   15.07 B0-B1V 39 0
9 LIN 365 HXB 01 00 30.0419190960 -72 20 33.457757496   14.53 14.6     B1.5e 20 0
10 OGLE SMC-SC9 32977 HX? 01 00 55.9686881352 -72 23 21.627129156   18.02 15.61   15.799 B1-5(III)e 6 0
11 [MA93] 1240 HXB 01 01 02.8880678424 -72 06 58.964665824   15.68 15.72 15.52   B0-B2III-V 46 0
12 [MA93] 1257 HXB 01 01 20.6635900032 -72 11 18.965108724 14.41 15.36 15.49   15.53 B0.5-B2IV-V 46 0
13 LIN 384 HXB 01 01 47.9034089160 -71 55 51.133004508 13.26 14.40 14.47   14.30 B0e 21 0
14 LIN 389 HXB 01 01 52.2957451944 -72 23 34.045082376 13.84 14.57 14.94 15.48 14.85 O9-B0III 37 0
15 AzV 294 HXB 01 02 06.6797731272 -71 41 16.119360960 13.54 14.52 14.60 15.20 14.42 B0-B0.5III-V 29 0
16 2XMM J010247.4-720449 HXB 01 02 47.5 -72 04 51           ~ 10 0
17 [MA93] 1367 HXB 01 03 13.9173060552 -72 09 14.258500452   14.70 14.79 15.0   B0.5IV-V 89 2
18 [MA93] 1393 HXB 01 03 37.5349856136 -72 01 33.204096336   14.54 14.65     B0III-V 64 0
19 SNR B0102-72.3 SNR 01 04 01.2 -72 01 52           ~ 375 1
20 [M2002] SMC 59367 HXB 01 04 29.419 -72 31 36.54 14.52 15.38 15.45 15.51   B1V 11 0
21 [MA93] 1470 HXB 01 04 35.4414218664 -72 21 48.461878224 14.07 15.18 15.13   14.98 B1.5e 16 0
22 [MA93] 1557 HXB 01 05 55.4 -72 03 49 14.63 15.61 15.63 15.54   ~ 24 0
23 2E 0105.7-7251 HXB 01 07 09.9 -72 35 35   15.4 16.6     Be 13 0
24 SXP 65.8 HXB 01 07 12.6098206008 -72 35 33.884245680 14.72 15.52 15.64 15.5 15.73 B1-B1.5II-III 23 0
25 [MA93] 1640 HXB 01 07 43.4217378576 -71 59 53.946595104     16.3     B2IV-Ve 11 0
26 [MA93] 1641 HXB 01 07 44.2313511480 -72 27 41.104980828   15.402 15.482   15.255 ~ 13 0
27 SK 160 HXB 01 17 05.1457288392 -73 26 36.014808156 12.23 13.00 13.15   13.17 O9.7Ia+ 827 0
28 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6371 1
29 NAME Magellanic Bridge HI 03 11 -77.5           ~ 389 1
30 UCAC2 1799680 Em* 05 20 16.1483853648 -69 25 05.368802196 13.905 15.099 14.98 14.96 14.665 ~ 15 2
31 [HP99] 946 Be* 05 20 30.9009 -69 31 54.999   14.41 14.40     O8e 56 0
32 UCAC3 42-23623 HX? 05 20 48.8284052256 -69 19 30.305036784   15.11 15.01 15.57 15.22 ~ 2 0
33 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16153 1
34 XMMU J052417.1-692533 HX? 05 24 17.1582763584 -69 25 33.869720460           ~ 2 0
35 SNR J052501-693842 SNR 05 25 02.20 -69 38 39.0           ~ 380 1
36 XMMU J052546.4-694450 HX? 05 25 46.46 -69 44 50.9           ~ 2 0
37 UCAC4 103-014082 HX? 05 25 50.620 -69 27 33.16   15.328 15.732 14.549 15.524 B2IVe-Ve 4 0
38 SNR J052741-691207 SNR 05 27 39.00 -69 12 12.0           ~ 36 0
39 Gaia DR2 4658058990815018752 * 05 28 29.3358213148 -69 03 44.692140688           ~ 1 0
40 SRGE J052829.5-690345 X 05 28 29.34 -69 03 44.7           ~ 1 0
41 RX J0529.7-6556 HXB 05 29 47.8546718664 -65 56 43.592426736 13.761 14.477 14.594   14.741 B0.5Ve 30 0
42 XMMU J053010.8-694755 HX? 05 30 10.7760737208 -69 47 55.146421356           B2-B3IIIe 2 0
43 UCAC2 1801945 HXB 05 31 08.4413158512 -69 09 23.508614988   13.76 13.69 13.78   B0IIIe 4 0
44 SN 1987A SN* 05 35 28.020 -69 16 11.07           SNIIpec 4721 2
45 PSR J0537-6910 Psr 05 37 46.66 -69 10 17.1           ~ 257 1
46 2MASS J05383341-6911588 X 05 38 33.4086616272 -69 11 59.023230396           ~ 7 0
47 X LMC X-1 HXB 05 39 38.8284304464 -69 44 35.531553624   14.8 14.5     O8(f)p 602 2
48 PSR B0540-69 Psr 05 40 10.84 -69 19 54.2           ~ 849 3
49 [VBM2018] BeCand-19 HX? 05 40 45.5826924288 -69 14 51.701331732   17.19 16.00 16.81 15.89 B1-B3IIIe-Ve 2 0
50 CPD-69 500 s*b 05 41 20.1251716560 -69 36 22.989236904 11.307 11.790 11.790   11.910 B4I-III 26 0
51 IGR J05414-6858 HXB 05 41 26.0 -68 58 23           ~ 14 0
52 4U 1901+03 HXB 19 03 39.3926409480 +03 12 15.758070228           OB 93 0

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2022.08.09-16:11:10

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