An overview on HXMT XRB observations/researches Shu Zhang

Outline Observation summary (by Jia ShuMei) Paper list for HMXB and LMXB MAXI/BAT light curves and HXMT snapshots (by Chang Zhi)

Observation summary June.22,2017—30 March 2018: Mission planning Scientific observation has lasted for 280 days. Short-term Plan : 140 normal & 13 ToO Point observation: 37 sources, 513times ~11000ks Small Area Scan: Crab area: 9 times Galactic Plane: 22 regions, 284 times ~3800ks Insight- HXMT started the scientific observation since June 22nd, 2017. And now it has lasted for 168 days. In these days, we have made 73 normal plans and 9 ToO plans. 27 sources have been observed for 204 times. The Crab area has been scanned for 9 times, and the 21 regions in Galactic plane has been scanned for 192 times. This information is available on the website: http://hxmt.org Some scientific results of these observations has been derived, and which also will be reported following.

Mode Type Source Name 次数 观测时长 1 Point Pulsar remnants Cas A 9 530 2 Pulsar Crab 85 1520 PSR B0540-69 7 250 3 PSR B1509-58 12 310 4 5 BH Binary Cyg X-1 220 6 Granat 1716-249 GRS 1915+105 260 8 GX 339-4 100 H 1743-322 15 180 10 MAXI J1535-571 18 430 11 MAXI J1543-564 80 MAXI J1820+070 410 13 Swift J1658.2-4242 23 14 Extra-galactic 1ES 1959+650 25 255 Perseus 200 16 M87 17 Cosmos Field

Aql X-1 3 30 37 38 39 30de Type Source Name 次数 观测时长 18 Point NS Binary 19 Cen X-3 11 350 20 Cir X-1 6 100 21 Cyg X-2 12 320 22 Cyg X-3 340 23 GRO J1008-57 24 GRO1750-27 1 15 25 GS 1826-238 40 26 GX 301-2 27 GX9+9 2 50 28 GX 17+2 5 150 29 Her X-1 250 Sco X-1 31 Vela X-1 120 32 2A 1822-371 33 4U 1728-34 70 34 4U 0115+63 35 4U1636-536 17 170 36 PSR J2032+4127 4 37 TBD Swift J0243.6+6124 97 1200 38 BlankSky 73 700 39 SAS Crab Area   9 550 Galactic Plane 22 regions 284 3200

Red stars: point observation Green regions: small area scan GRB: 61 Here is the distribution of all the observed sources on the sky map. The red stars are for the point observations, and the green regions are for the small area scan. Red stars: point observation Green regions: small area scan GRB: 61

Paper list for HMXB and LMXB BH XRB (HMXB): CygX-1: The shot phenomena of Cyg X-1 observed by HXMT Led by: Ma Xiang, Qu JinLu BH XRB (LMXB): Granat 1716-279: The spectral evolution and the spin measurement of Granat 1716-279 Led by: Tao Lian GX339-4: The broad energy spectrum and broadened Fe line in GX 339-4 led by: Tan Ying H 1743-322: The failed outburst shown up in H 1743-322 led by: Chen YuPeng

Paper list for HMXB and LMXB BH XRB (LMXB): MAXI J1535-571: 1, The timing behavior of MAXI J1535-571 observed by HXMT Led by: Hang Yue, Qu JinLu 2, The spectral evolution and super Eddington accretion of MAXI J1535-571 Led by: Tao Lian, Zhang ShuangNan GRS 1915+105: Broad band researches on GRS 1915+105 in its bright state Led by: Huang Yue, Qu JinLu MAXI J1820+070: HXMT observations on the new transient MAXI J1820+070 led by: Ge MingYu, Tao Lian Swift J1658.2-4242: HXMT observations on the new transient Swift J1658.2-4242 led by: Ma Xiang, Qu JInLu

Paper list for HMXB and LMXB NS XRB (HMXB): Cen X-3: The Iron line and evolution in Cen X-3 Led by: Zhao XiaoFan, Chen Yong GRO J1008-57: The CRSF observed in GRO J1008-57 by HXMT Led by: Zhang ShuangNan, Ge MingYu GX 301-2: The CRSF and stellar disk wind observed by HXMT led by: Zhao XiaoFan, Chen Yong Vela X-1: led by: Ge MingYu, Tao Lian 4U0115+63: The CRSF and propeller effect of 4U0115+63 led by: Liu BaiSheng, Qu JInLu

Paper list for HMXB and LMXB NS XRB (HMXB): Swift J0243.6+6124: 1, Spin and Fe line evolution of Swift J0243.6+6124 Led by: Zhang Yue, Ge Ming Yu 2, Swift 0243.6+6124 distance and multi-wavelength observation Led by: Tao Lian Cyg X-3: The outburst of Cyg X-3 observed by HXMT Led by: Chen YuPeng Her X-1: The CRSF and evolution of Her X-1 led by: Xiao GuangCheng, Ge MingYu

Paper list for HMXB and LMXB NS XRB (LMXB): Cir X-1: The EC relation verification with Cir X-1 Led by: Zhao XiaoFan, Chen Yong CygX-2, Sco X-1, GX 17+2, GX 9+9: Researches on evolution between Z source and atoll source Led by: Chen YuPeng, Qu JinLu, Zhang Shu, Ge MingYu MXB 1730-355: The type-I and type-II bursts in MXB 1730-355 Led by: Chen YuPeng, Zhang Shu GS 1826-236: Spectral evolution of GS 1826-236 in soft state led by: Chen YuPeng, Zhang Shu Aql X-1: Propeller effect from Aql X-1 led by: Can Gungor, Zhang Shu, Chen YuPeng NGC 6624 : Broad band views to NGC 6624 (4U 1820-30) Led by: Chen YuPeng, Zhang Shu, Ge MingYu

MAXI/BAT light curves and HXMT snapshots

Thank you !

Accretion via both the inner Lagrange point and stellar wind

Wind velocity can be inferred from the orbital X-ray profile

Intense X-ray variability of Vela X-1, lasting from a few minutes to several hours, is commonly thought to be associated with changes in the accretion rate and to inhomogeneities in the stellar wind flow. There have been reports, on the one hand, of reductions in the flux to less than 10% of its normal emission (“off states”), as well as of very active states, on the other, with increases in the flux by sometimes more than a factor of.

CygX-3是一个持续亮的HMXB系统，有4 CygX-3是一个持续亮的HMXB系统，有4.8小时轨道周期，以及34天吸积盘进动的超轨周期，HXMT监测了其在2017年的爆发。该系统具有丰富的时变（QPO）和能谱态，虽然其致密星性质尚不确定，但从辐射特征上看，可能是BH，该源具有伽玛辐射，2015年的爆发Astrosat做了报道。基于这些特性，特别是，可能是一个BH的具有伽玛辐射的HMXB，使得这个系统非常有特色，