NICER observations reveal that the X-ray transient MAXI J1348-630 is a black hole X-ray binary

被引：41

作者：

Zhang, L. ^{[1
]}

Altamirano, D. ^{[1
]}

Cuneo, V. A. ^{[2
,3
]}

Alabarta, K. ^{[1
,4
]}

Enoto, T. ^{[5
]}

Homan, J. ^{[6
,7
]}

Remillard, R. A. ^{[8
]}

Uttley, P. ^{[9
]}

Vincentelli, F. M. ^{[1
]}

Arzoumanian, Z. ^{[10
]}

Bult, P. ^{[10
]}

Gendreau, K. C. ^{[10
]}

Markwardt, C. ^{[10
]}

Sanna, A. ^{[11
]}

Strohmayer, T. E. ^{[10
]}

Steiner, J. F. ^{[12
]}

Basak, A. ^{[9
]}

Neilsen, J. ^{[13
]}

Tombesi, F. ^{[10
,14
,15
,16
]}

机构：

[1] Univ Southampton, Phys & Astron, Southampton SO17 1BJ, Hants, England

[2] Inst Astrofis Canarias IAC, Via Lactea S-N, E-38205 San Cristobal la Laguna, Sc De Tenerife, Spain

[3] Univ La Laguna, Dept Astrofis, Via Lactea S-N, E-38205 San Cristobal la Laguna, Sc De Tenerife, Spain

[4] Univ Groningen, Kapteyn Astron Inst, POB 800, NL-9700 AV Groningen, Netherlands

[5] RIKEN Cluster Pioneering Res, Extreme Nat Phenomena RIKEN Hakubi Res Team, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[6] Eureka Sci Inc, 2452 Delmer St, Oakland, CA 94602 USA

[7] SRON Netherlands Inst Space Res, SRON, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands

[8] MIT, Kavli Inst Astrophys & Space Res, 70 Vassar St, Cambridge, MA 02139 USA

[9] Univ Amsterdam, Anton Pannekoek Inst Astron, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands

[10] NASA, Goddard Space Flight Ctr, Astrophys Sci Div, Greenbelt, MD 20771 USA

[11] Univ Cagliari, Dipartimento Fis, SP Monserrato Sestu Km 0-7, I-09042 Monserrato, Italy

[12] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[13] Villanova Univ, Dept Phys, Villanova, PA 19085 USA

[14] Univ Roma Tor Vergata, Dept Phys, Via Ric Sci 1, I-00133 Rome, Italy

[15] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[16] INAF Osservatorio Astron Roma, Via Frascati 33, I-00078 Rome, Italy

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2020年 / 499卷 / 01期

关键词：

accretion; accretion discs; black hole physics; X-rays: binaries; X-rays: individual: MAXI J1348-630; QUASI-PERIODIC OSCILLATIONS; XTE J1550-564; STATE TRANSITIONS; FAILED OUTBURST; LIGHT CURVES; FREQUENCY; EVOLUTION; VARIABILITY; BEHAVIOR; SPECTRA;

D O I：

10.1093/mnras/staa2842

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We studied the outburst evolution and timing properties of the recently discovered X-ray transient MAXI J1348-630 as observed with NICER. We produced the fundamental diagrams commonly used to trace the spectral evolution, and power density spectra to study the fast X-ray variability. The main outburst evolution of MAXI J1348-630 is similar to that commonly observed in black hole transients. The source evolved from the hard state (HS), through hard- and soft-intermediate states, into the soft state in the outburst rise, and back to the HS in reverse during the outburst decay. At the end of the outburst, MAXI J1348-630 underwent two reflares with peak fluxes approximately one and two orders of magnitude fainter than the main outburst, respectively. During the reflares, the source remained in the HS only, without undergoing any state transitions, which is similar to the so-called 'failed outbursts'. Different types of quasi-periodic oscillations (QPOs) are observed at different phases of the outburst. Based on our spectral-timing results, we conclude that MAXI J1348-630 is a black hole candidate.

引用

页码：851 / 861

页数：11

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