2019ApJ...879...61Z

Query : 2019ApJ...879...61Z

2019ApJ...879...61Z - Astrophys. J., 879, 61-61 (2019/July-1)

Insight-HXMT observations of Swift J0243.6+6124 during its 2017-2018 outburst.

ZHANG Y., GE M., SONG L., ZHANG S., QU J., ZHANG S., DOROSHENKO V., TAO L., JI L., GUNGOR C., SANTANGELO A., SHI C., CHANG Z., CHEN G., CHEN L., CHEN T., CHEN Y., CHEN Y., CUI W., CUI W., DENG J., DONG Y., DU Y., FU M., GAO G., GAO H., GAO M., GU Y., GUAN J., GUO C., HAN D., HU W., HUANG Y., HUO J., JIA S., JIANG L., JIANG W., JIN J., JIN Y., LI B., LI C., LI G., LI M., LI W., LI X., LI X., LI X., LI Y., LI Z., LI Z., LIANG X., LIAO J., LIU C., LIU G., LIU H., LIU S., LIU X., LIU Y., LIU Y., LU B., LU X., LUO T., MA X., MENG B., NANG Y., NIE J., OU G., SAI N., SUN L., TAN Y., TAO W., TUO Y., WANG G., WANG H., WANG J., WANG W., WANG Y., WEN X., WU B., WU M., XIAO G., XIONG S., XU H., XU Y., YAN L., YANG J., YANG S., YANG Y., ZHANG A., ZHANG C., ZHANG C., ZHANG F., ZHANG H., ZHANG J., ZHANG T., ZHANG W., ZHANG W., ZHANG W., ZHANG Y., ZHANG Y., ZHANG Y., ZHANG Z., ZHANG Z., ZHAO H., ZHAO J., ZHAO X., ZHENG S., ZHU Y., ZHU Y., ZOU C. (The Insight-HXMT Collaboration)

Abstract (from CDS):

The recently discovered neutron star transient Swift J0243.6+6124 has been monitored by the Hard X-ray Modulation Telescope. Based on the obtained data, we investigate the broadband spectrum of the source throughout the outburst. We estimate the broadband flux of the source and search for possible cyclotron line in the broadband spectrum. However, no evidence of line-like features is found up to 150 keV. In the absence of any cyclotron line in its energy spectrum, we estimate the magnetic field of the source based on the observed spin evolution of the neutron star by applying two accretion torque models. In both cases, we get consistent results with B ∼ 1013 G, D ∼ 6 kpc and peak luminosity of >1039 erg s–1, which makes the source the first Galactic ultraluminous X-ray source hosting a neutron star.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): accretion, accretion disks - pulsars: individual: Swift J0243.6+6124 - stars: distances - stars: magnetic field - X-rays: binaries

Simbad objects: 2

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Number of rows : 2
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 SWIFT J0243.6+6124 HXB 02 43 40.4252869512 +61 26 03.757456824   13.71 12.84 12.57   O9.5Ve 208 0
2 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0

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