Zobrazeno 1 - 10
of 1 291
pro vyhledávání: '"MILLISECOND PULSARS"'
Autor:
Kyle Kremer, Claire S. Ye, Craig O. Heinke, Anthony L. Piro, Scott M. Ransom, Frederic A. Rasio
Publikováno v:
The Astrophysical Journal Letters, Vol 977, Iss 2, p L42 (2024)
Alongside the population of several hundred radio millisecond pulsars currently known in Milky Way globular clusters, a subset of six slowly spinning pulsars (spin periods 0.3–4 s) are also observed. With inferred magnetic fields
Externí odkaz:
https://doaj.org/article/e5836afa143443eda2776de05a457ed7
Autor:
Shi-Jie Gao, Yi-Xuan Shao, Pei Wang, Ping Zhou, Xiang-Dong Li, Lei Zhang, Joseph W. Kania, Duncan R. Lorimer, Di Li
Publikováno v:
The Astrophysical Journal Letters, Vol 974, Iss 1, p L2 (2024)
Observations show that globular clusters (GCs) might be among the best places to find millisecond pulsars (MSPs). However, the GC Terzan 6 seems to be an exception without any pulsar discovered, although its high stellar encounter rate suggests that
Externí odkaz:
https://doaj.org/article/b5c9e0eebfeb4125a96000bba89c016a
Autor:
Daniel J. Reardon, Matthew Bailes, Ryan M. Shannon, Chris Flynn, Jacob Askew, N. D. Ramesh Bhat, Zu-Cheng Chen, Małgorzata Curyło, Yi Feng, George B. Hobbs, Agastya Kapur, Matthew Kerr, Xiaojin Liu, Richard N. Manchester, Rami Mandow, Saurav Mishra, Christopher J. Russell, Mohsen Shamohammadi, Lei Zhang, Andrew Zic
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 1, p L18 (2024)
The observation of neutron stars enables the otherwise impossible study of fundamental physical processes. The timing of binary radio pulsars is particularly powerful, as it enables precise characterization of their (three-dimensional) positions and
Externí odkaz:
https://doaj.org/article/bb11edee43964c8d83461936c1e54981
Autor:
Devarshi Choudhury, Tuomo Salmi, Serena Vinciguerra, Thomas E. Riley, Yves Kini, Anna L. Watts, Bas Dorsman, Slavko Bogdanov, Sebastien Guillot, Paul S. Ray, Daniel J. Reardon, Ronald A. Remillard, Anna V. Bilous, Daniela Huppenkothen, James M. Lattimer, Nathan Rutherford, Zaven Arzoumanian, Keith C. Gendreau, Sharon M. Morsink, Wynn C. G. Ho
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 1, p L20 (2024)
We report Bayesian inference of the mass, radius, and hot X-ray emitting region properties—using data from the Neutron Star Interior Composition ExploreR (NICER)—for the brightest rotation-powered millisecond X-ray pulsar, PSR J0437−4715. Our m
Externí odkaz:
https://doaj.org/article/2c6368f0ce8648789872a7dfccf78f83
Autor:
Dejiang Yin, Li-yun Zhang, Lei Qian, Ralph P. Eatough, Baoda Li, Duncan R. Lorimer, Yinfeng Dai, Yaowei Li, Xingnan Zhang, Minghui Li, Tianhao Su, Yuxiao Wu, Yu Pan, Yujie Lian, Tong Liu, Zhen Yan, Zhichen Pan
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 1, p L7 (2024)
We present the discovery of eight isolated millisecond pulsars in globular cluster (GC) NGC 6517 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The spin periods of those pulsars (namely PSR J1801–0857K to R, or NGC 6517K to
Externí odkaz:
https://doaj.org/article/5e817d8e00bd4870af2d09624e4fdd0e
Autor:
Mason Ng, Paul S. Ray, Andrea Sanna, Tod E. Strohmayer, Alessandro Papitto, Giulia Illiano, Arianna C. Albayati, Diego Altamirano, Tuğba Boztepe, Tolga Güver, Deepto Chakrabarty, Zaven Arzoumanian, D. J. K. Buisson, Elizabeth C. Ferrara, Keith C. Gendreau, Sebastien Guillot, Jeremy Hare, Gaurava K. Jaisawal, Christian Malacaria, Michael T. Wolff
Publikováno v:
The Astrophysical Journal Letters, Vol 968, Iss 1, p L7 (2024)
We present the discovery, with the Neutron Star Interior Composition Explorer (NICER), that SRGA J144459.2−604207 is a 447.9 Hz accreting millisecond X-ray pulsar (AMXP), which underwent a 4 week long outburst starting on 2024 February 15. The AMXP
Externí odkaz:
https://doaj.org/article/1b3411362c0c421dabc7e92770c25af5
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 1, p L3 (2024)
We report accretion-powered pulsations for the first time during thermonuclear bursts in hard X-rays, which were observed with Insight-HXMT in 2022 during the outburst of the accreting X-ray millisecond pulsar MAXI J1816-195. By stacking 73 bursts, w
Externí odkaz:
https://doaj.org/article/6fb8abd8c8ce4dd798e42077e7cddb0b
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