Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Maurizio Falanga"'
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
This study comprehensively analyzes type I X-ray bursts observed by Swift/BAT from 2005 to April 2024 to search for X-ray burst oscillations (XBOs) in neutron star low-mass X-ray binaries. XBOs, periodic signals detected within type I X-ray bursts, t
Externí odkaz:
https://doaj.org/article/8dca77accbc64fd1b8aae0943a54b58b
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 1, p 15 (2024)
We report the detection of a long X-ray burst from the ultracompact binary 4U 1850–087. The type I X-ray burst was observed on MJD 60171.65 by the Monitor of All-sky X-ray Image and Neutron Star Interior Composition Explorer (NICER). We analyze the
Externí odkaz:
https://doaj.org/article/9fecab3540c343df95b2cc08ef5cf896
Publikováno v:
The Astrophysical Journal Letters, Vol 959, Iss 1, p L13 (2023)
The first extrasolar planets were discovered serendipitously, by finding the slight variation in otherwise highly regular timing of the pulses, caused by the planets orbiting a millisecond pulsar. In analogy with the solar system planets, we predict
Externí odkaz:
https://doaj.org/article/2a6a9514e838448eb1f6fc02c41648f8
Autor:
Zhaosheng Li, Lucien Kuiper, Mingyu Ge, Maurizio Falanga, Juri Poutanen, Long Ji, Yuanyue Pan, Yue Huang, Renxin Xu, Liming Song, Jinlu Qu, Shu Zhang, Fangjun Lu, Shuang-Nan Zhang
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 2, p 177 (2023)
We studied the broadband X-ray timing and spectral behaviors of the newly confirmed accreting millisecond X-ray pulsar MAXI J1816−195 during its 2022 outburst. We used data from the Insight-HXMT Medium Energy (ME) and High Energy (HE) telescopes, N
Externí odkaz:
https://doaj.org/article/8a3bf46ad14f4ca093781550fb7bd9c1
Autor:
Wu, Ji, Deng, Li, Praks, Jaan, Anger, Marius, Oleynik, Philipp, Hajdas, Wojciech, Wang, Jin-Dong, Zhang, Shen-Yi, Zhou, Bin, Zeng, Li, Cao, Jinbin, Fischer, David, Liu, Shuang, Chen, Wen, Wu, Fan, Xi, Rui-Chen, Li, Xinlin, Walter Abrahao, Dos-Santos, Marcos Denardini, Clezio, Li, Yulun, Yang, Xiao-Chao, Dai, Lei, Ma, Ying-Qi, Yu, Tian, Cai, Ming-hui, Yang, Hao-Liang, Ebrahimi, Mohammad, Maurizio, Falanga, Kalegaev, Vladimir, Li, Wen, Miyoshi, Yoshizumi, Nakamura, Rumi, Petrukovich, Anatoli, Baker, Daniel, Worms, Jean-Claude
Publikováno v:
In Advances in Space Research April 2024
Autor:
Yongqi Lu, Zhaosheng Li, Yuanyue Pan, Wenhui Yu, Yupeng Chen, Long Ji, Mingyu Ge, Shu Zhang, Jinlu Qu, Liming Song, Maurizio Falanga
NICER observed two outbursts from the neutron star low-mass X-ray binary 4U~1730$-$22 in 2021 and 2022, which showed a similar spectral evolution in the hardness-intensity diagram. Seventeen type I X-ray bursts were identified in both outbursts. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e17db23fed5cddb0d64d9f4e1feef50
http://arxiv.org/abs/2212.07038
http://arxiv.org/abs/2212.07038
Publikováno v:
Astronomy & Astrophysics. 673:A164
We investigated a complete set of relativistic images of a small source located at an arbitrary distance from a Schwarzschild black hole gravitational lens. This paper offers a description of a simple and efficient fully relativistic method for calcu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d639b351ce8f333dd37adfa3e5e3b2c
https://doi.org/10.1051/0004-6361/202245426
https://doi.org/10.1051/0004-6361/202245426
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 501:2403-2417
We present in this paper a first step toward a semi-analytical treatment of the accretion process in wind-fed neutron star supergiant X-ray binaries with eccentric orbits. We consider the case of a spherically symmetric wind for the supergiant star a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77e764d2589f923b3582fb36d551b96d
https://doi.org/10.1093/mnras/staa3761
https://doi.org/10.1093/mnras/staa3761
Type I X-ray bursts are the result of an unstable thermonuclear burning of accreting matter on the neutron star (NS) surface. The quick release of energetic X-ray photons during such bursts interacts with the surrounding accretion disk, which raises
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00cca620edbfaa851a22d2e68ae1c8f3
http://arxiv.org/abs/2202.07153
http://arxiv.org/abs/2202.07153
Publikováno v:
Monthly Notices of the Royal Astronomical Society
The hard X-ray source 2PBC J0658.0-1746 was proposed as an eclipsing magnetic cataclysmic variable of the polar type, based on optical follow-ups. We present the first spectral and timing analysis at X-ray energies with XMM-Newton, complemented with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12f18cb665cc3b8bdca77a5dff54771c
https://doi.org/10.1093/mnras/stz1951
https://doi.org/10.1093/mnras/stz1951