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名稱Title
2021天文年會
國立嘉義大學蘭潭校區
5月21日至23日

論文摘要

Peculiar outburst behaviour of X-ray binaries observed with NICER

[ Oral ]

Holger Stiele (NTHU); Albert Kong (NTHU)

We present the results of our spectral and timing studies with NICER of the recently detected black hole X-ray binaries MAXI J0637–430 and MAXI J1631–479 that show peculiar behaviour during their outbursts. Both these sources are first observed in the high-soft state and followed by NICER to the low-hard state or quiescence state, respectively. MAXI J0637–430 shows unusually little variability in the high-soft state. MAXI J1631–479 remains unusually soft during the entire outburst, even in the low-hard state, when type-C QPOs are detected and seems to start the transition to the quiescence state at a rather high count rate. We will discuss these systems and their properties in relation to canonical black hole X-ray binaries.