Pith. sign in

REVIEW

GECAM detection of a bright type-I X-ray burst from 4U 0614+09: confirmation its spin frequency at 413 Hz

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2112.04790 v1 pith:BXATA7F3 submitted 2021-12-09 astro-ph.HE

GECAM detection of a bright type-I X-ray burst from 4U 0614+09: confirmation its spin frequency at 413 Hz

Y. P. Chen , J. Li , S. L. Xiong , L. Ji , S. Zhang , W. X. Peng , R. Qiao , X. Q. Li
show 82 more authors
X. Y. Wen L. M. Song S. J. Zheng X. Y. Song X. Y. Zhao Y. Huang F. J. Lu S. N. Zhang S. Xiao C. Cai B. X. Zhang Z. H. An C. Chen G. Chen W. Chen G. Q. Dai Y. Q. Du M. Gao K. Gong D. Y. Guo Z. W. Guo J. J. He B. Li C. Li C. Y. Li G. Li J. H. Li L. Li Q. X. Li X. B. Li Y. G. Li J. Liang X. H. Liang J. Y. Liao J. C. Liu X. J. Liu Y. Q. Liu Q. Luo X. Ma B. Meng G. Ou D. L. Shi F. Shi J. Y. Shi G. X. Sun X. L. Sun Y. L. Tuo C. W. Wang H. Wang H. Y. Wang J. Wang J. Z. Wang P. Wang Y. S. Wang Y. X. Wang X. Wen H. Wu S. L. Xie Y. B. Xu Y. P. Xu W. C. Xue S. Yang M. Yao J. Y. Ye Q. B. Yi C. M. Zhang C. Y. Zhang D. L. Zhang Fan Zhang Fei Zhang H. M. Zhang K. Zhang P. Zhang X. L. Zhang Y. Q. Zhang Z. Zhang G. Y. Zhao S. Y. Zhao Y. Zhao C. Zheng X. Zhou Y. Zhu
This is my paper
classification astro-ph.HE
keywords burstoscillationbrightdetectionduringfrequencygecammulti-peak
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

One month after launching Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM), a bright thermonuclear X-ray burst from 4U~0614+09, was observed on January 24, 2021. We report the time-resolved spectroscopy of the burst and a burst oscillation detection at 413 Hz with a fractional amplitude 3.4\% (rms). This coincides with the burst oscillation previously discovered with \textit{Swift}/BAT \citep{Strohmayer2008}, and therefore confirms the spin frequency of this source. This burst is the brightest one in the normal bursts (except the superburst) ever detected from 4U~0614+09, which leads to an upper limit of distance estimation as 3.1 kpc. The folded light curve during the burst oscillation shows a multi-peak structure, which is the first case observed during a single burst oscillation in nonpulsating sources. The multi-peak profile could be due to additional harmonics of the burst oscillation, which is corresponding to several brighter/fainter spots at the stellar surface.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.