NuSTAR view of the central region of M31

被引：2
作者：
Stiele, H. [1 ,2 ]
Kong, A. K. H. [1 ,2 ,3 ]
机构：
[1] Natl Tsing Hua Univ, Dept Phys, 101 Sect 2 Kuang Fu Rd, Hsinchu 30013, Taiwan
[2] Natl Tsing Hua Univ, Inst Astron, 101 Sect 2 Kuang Fu Rd, Hsinchu 30013, Taiwan
[3] Univ Oxford, Dept Phys, Astrophys, Keble Rd, Oxford OX1 3RH, England
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2018年 / 475卷 / 04期
关键词：
galaxies: individual: M 31; X-rays: binaries; X-rays: galaxies; X-RAY SOURCES; HIGH-RESOLUTION CAMERA; ROSAT PSPC SURVEY; XMM-NEWTON; POINT SOURCES; M-31; CHANDRA; TRANSIENTS; VARIABILITY; POPULATION;
D O I：
10.1093/mnras/sty106
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Our neighbouring large spiral galaxy, the Andromeda galaxy (M31 or NGC224), is an ideal target to study the X-ray source population of a nearby galaxy. NuSTAR observed the central region of M31 in 2015 and allows studying the population of X-ray point sources at energies higher than 10 keV. Based on the source catalogue of the large XMM-Newton survey of M31, we identified counterparts to the XMM-Newton sources in the NuSTAR data. The NuSTAR data only contain sources of a brightness comparable (or even brighter) than the selected sources that have been detected in XMM-Newton data. We investigate hardness ratios, spectra, and long-term light curves of individual sources obtained from NuSTAR data. Based on our spectral studies, we suggest four sources as possible X-ray binary candidates. The long-term light curves of seven sources that have been observed more than once showlow(but significant) variability.
引用
收藏
页码：4911 / 4923
页数：13
相关论文
共 49 条
  • [1] Arnaud KA, 1996, ASTR SOC P, V101, P17
  • [2] Tracing a Z-track in the M 31 X-ray binary RX J0042.6+4115
    Barnard, R
    Kolb, U
    Osborne, JP
    [J]. ASTRONOMY & ASTROPHYSICS, 2003, 411 (03): : 553 - 557
  • [3] 2 VARIABLE X-RAY SOURCES IN M31
    COLLURA, A
    REALE, F
    PERES, G
    [J]. ASTROPHYSICAL JOURNAL, 1990, 356 (01) : 119 - 129
  • [4] Supersoft X-ray sources in M31.: I.: A Chandra survey and an extension to quasi-soft sources
    Di Stefano, R
    Kong, AKH
    Greiner, J
    Primini, FA
    Garcia, MR
    Barmby, P
    Massey, P
    Hodge, PW
    Williams, BF
    Murray, SS
    Curry, S
    Russo, TA
    [J]. ASTROPHYSICAL JOURNAL, 2004, 610 (01) : 247 - 260
  • [5] Bright X-ray sources in M31 globular clusters
    Di Stefano, R
    Kong, AKH
    Garcia, MR
    Barmby, P
    Greiner, J
    Murray, SS
    Primini, FA
    [J]. ASTROPHYSICAL JOURNAL, 2002, 570 (02) : 618 - 636
  • [6] A first look at the nuclear region of M31 with Chandra
    Garcia, MR
    Murray, SS
    Primini, FA
    Forman, WR
    McClintock, JE
    Jones, C
    [J]. ASTROPHYSICAL JOURNAL, 2000, 537 (01) : L23 - L26
  • [7] X-ray monitoring of classical novae in the central region of M 31 III. Autumn and winter 2009/10, 2010/11, and 2011/12
    Henze, M.
    Pietsch, W.
    Haberl, F.
    Della Valle, M.
    Sala, G.
    Hatzidimitriou, D.
    Hofmann, F.
    Hernanz, M.
    Hartmann, D. H.
    Greiner, J.
    [J]. ASTRONOMY & ASTROPHYSICS, 2014, 563
  • [8] X-ray monitoring of classical novae in the central region of M 31 II. Autumn and winter 2007/2008 and 2008/2009
    Henze, M.
    Pietsch, W.
    Haberl, F.
    Hernanz, M.
    Sala, G.
    Hatzidimitriou, D.
    Della Valle, M.
    Rau, A.
    Hartmann, D. H.
    Burwitz, V.
    [J]. ASTRONOMY & ASTROPHYSICS, 2011, 533
  • [9] X-ray monitoring of classical novae in the central region of M 31 I. June 2006-March 2007
    Henze, M.
    Pietsch, W.
    Haberl, F.
    Hernanz, M.
    Sala, G.
    Della Valle, M.
    Hatzidimitriou, D.
    Rau, A.
    Hartmann, D. H.
    Greiner, J.
    Burwitz, V.
    Fliri, J.
    [J]. ASTRONOMY & ASTROPHYSICS, 2010, 523
  • [10] X-ray source variability study of the M 31 central field using Chandra HRC-I
    Hofmann, F.
    Pietsch, W.
    Henze, M.
    Haberl, F.
    Sturm, R.
    Della Valle, M.
    Hartmann, D. H.
    Hatzidimitriou, D.
    [J]. ASTRONOMY & ASTROPHYSICS, 2013, 555
12345