Zobrazeno 1 - 10
of 40
pro vyhledávání: '"T E Strohmayer"'
Autor:
D. L. Moutard, R. M. Ludlam, J. A. García, D. Altamirano, D. J. K. Buisson, E. M. Cackett, J. Chenevez, N. Degenaar, A. C. Fabian, J. Homan, A. Jaodand, S. N. Pike, A. W. Shaw, T. E. Strohmayer, J. A. Tomsick, B. M. Coughenour
Publikováno v:
The Astrophysical Journal, Vol 957, Iss 1, p 27 (2023)
We present the first joint NuSTAR and NICER observations of the ultracompact X-ray binary 4U 0614+091. This source shows quasiperiodic flux variations on the timescale of ∼days. We use reflection modeling techniques to study various components of t
Externí odkaz:
https://doaj.org/article/8519722e181848c79a5b69446eea6b85
Autor:
G C Mancuso, D Altamirano, P Bult, J Chenevez, S Guillot, T Güver, G K Jaisawal, C Malacaria, M Ng, A Sanna, T E Strohmayer
Publikováno v:
Mancuso, G C, Altamirano, D, Bult, P, Chenevez, J, Guillot, S, Güver, T, Jaisawal, G K, Malacaria, C, Ng, M, Sanna, A & Strohmayer, T E 2023, ' Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER ', Monthly Notices of the Royal Astronomical Society, vol. 521, no. 4, pp. 5616-5623 . https://doi.org/10.1093/mnras/stad949
We report the discovery of millihertz quasi-periodic oscillations (mHz QPOs) from the neutron star (NS) low-mass X-ray binary 4U 1730--22 using the Neutron Star Interior Composition Explorer (NICER). After being inactive for almost 50 years, 4U 1730-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd17186d7d02d4c37a142adb13316d33
https://doi.org/10.1093/mnras/stad949
https://doi.org/10.1093/mnras/stad949
Autor:
A Marino, A Anitra, S M Mazzola, T Di Salvo, A Sanna, P Bult, S Guillot, G Mancuso, M Ng, A Riggio, A C Albayati, D Altamirano, Z Arzoumanian, L Burderi, C Cabras, D Chakrabarty, N Deiosso, K C Gendreau, R Iaria, A Manca, T E Strohmayer
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2022, 515, pp.3838-3852. ⟨10.1093/mnras/stac2038⟩
Monthly Notices of the Royal Astronomical Society, 2022, 515, pp.3838-3852. ⟨10.1093/mnras/stac2038⟩
The neutron star low-mass X-ray binary SWIFT J1749.4–2807 is the only known eclipsing accreting millisecond X-ray pulsar. In this manuscript, we perform a spectral characterization of the system throughout its 2021, 2-week-long outburst, analysing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e966820cd97943db20e90e22bbb8709
https://doi.org/10.1093/mnras/stac2038
https://doi.org/10.1093/mnras/stac2038
The Rossi X-Ray Timing Explorer observed the soft X-Ray transient Aql X-1 during its outburst in February and March 1997. We report the discovery of quasi-periodic oscillations (QPOs) in its persistent flux with frequencies in the range of 740 to 830
Externí odkaz:
http://arxiv.org/abs/astro-ph/9712300
Autor:
A Sanna, P Bult, M Ng, P S Ray, G K Jaisawal, L Burderi, T Di Salvo, A Riggio, D Altamirano, T E Strohmayer, A Manca, K C Gendreau, D Chakrabarty, W Iwakiri, R Iaria
Publikováno v:
Technical University of Denmark Orbit
Sanna, A, Bult, P, NG, M, Ray, P S, Jaisawal, G K, Burderi, L, Di Salvo, T, Riggio, A, Altamirano, D, Strohmayer, T E, Manca, A, Gendreau, K C, Chakrabarty, D, Iwakiri, W & Iaria, R 2022, ' MAXI J1957+032: a new accreting millisecond X-ray pulsar in an ultra-compact binary ', Monthly Notices of the Royal Astronomical Society, vol. 516, no. 1, pp. L76–L80 . https://doi.org/10.1093/mnrasl/slac093
Sanna, A, Bult, P, NG, M, Ray, P S, Jaisawal, G K, Burderi, L, Di Salvo, T, Riggio, A, Altamirano, D, Strohmayer, T E, Manca, A, Gendreau, K C, Chakrabarty, D, Iwakiri, W & Iaria, R 2022, ' MAXI J1957+032: a new accreting millisecond X-ray pulsar in an ultra-compact binary ', Monthly Notices of the Royal Astronomical Society, vol. 516, no. 1, pp. L76–L80 . https://doi.org/10.1093/mnrasl/slac093
The detection of coherent X-ray pulsations at ~314 Hz (3.2 ms) classifies MAXI J1957+032 as a fast-rotating, accreting neutron star. We present the temporal and spectral analysis performed using NICER observations collected during the latest outburst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3c466adfed996acfbe740a5968ad653
http://arxiv.org/abs/2208.05807
http://arxiv.org/abs/2208.05807
Autor:
A Sanna, L Burderi, T Di Salvo, A Riggio, D Altamirano, A Marino, P Bult, T E Strohmayer, S Guillot, C Malacaria, M Ng, G Mancuso, S M Mazzola, A C Albayati, R Iaria, A Manca, N Deiosso, C Cabras, A Anitra
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2022, 514 (3), pp.4385-4397. ⟨10.1093/mnras/stac1611⟩
instname
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2022, 514 (3), pp.4385-4397. ⟨10.1093/mnras/stac1611⟩
We present the pulsar timing analysis of the accreting millisecond X-ray pulsar SWIFT J1749.4-2807 monitored by NICER and XMM-Newton during its latest outburst after almost eleven years of quiescence. From the coherent timing analysis of the pulse pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a4eeacd95d0f48914ac4fa32bc34a30
Autor:
M. Orio, K. Gendreau, M. Giese, G. J. M. Luna, J. Magdolen, S. Pei, B. Sun, E. Behar, A. Dobrotka, J. Mikolajewska, Dheeraj R. Pasham, T. E. Strohmayer
Publikováno v:
The Astrophysical Journal. 932:45
We monitored four supersoft sources - two persistent ones, CAL 83 and MR Vel, and the recent novae YZ Ret (Nova Ret 2020) and V1674 Her (Nova Her 2021) - with NICER. The two persistent SSS were observed with unvaried X-ray flux level and spectrum, re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b5316055511531bb78db52dd7bdf044
https://doi.org/10.3847/1538-4357/ac63be
https://doi.org/10.3847/1538-4357/ac63be
Autor:
M. C. Miller, T. E. Strohmayer, Edward M. Cackett, Somak Bhattacharyya, David R. Ballantyne, M. Boutelier, Didier Barret, Rudy Wijnands, Jon M. Miller
Publikováno v:
Astrophysical Journal, 720(1), 205-225. IOP Publishing Ltd.
A number of neutron star low-mass X-ray binaries have recently been discovered to show broad, asymmetric Fe K emission lines in their X-ray spectra. These lines are generally thought to be the most prominent part of a reflection spectrum, originating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ac8aa058d639a8c672d863639807793
https://doi.org/10.1088/0004-637x/720/1/205
https://doi.org/10.1088/0004-637x/720/1/205
Autor:
S. Mahmoodifar, V. F. Suleimanov, Somak Bhattacharyya, M. C. Miller, Alexander Heger, Juri Poutanen, Mariano Mendez, M. Falanga, Laurens Keek, Jérôme Chenevez, C. M. Malone, S. E. Woosley, J. J. M. in 't Zand, Andrew Cumming, T. E. Strohmayer, Jordi José, Shuinai Zhang, Agata Różańska, Nathalie Degenaar, Duncan K. Galloway, Diego Altamirano, Motoko Serino, Michael Zingale, Friedrich-Karl Thielemann, Yuri Cavecchi, Edward F. Brown, Deepto Chakrabarty, F. B. S. Paerels, Nevin N. Weinberg, Wenfei Yu, David R. Ballantyne, Anna L. Watts, Hendrik Schatz, Manuel Linares
The Large Area Detector (LAD) on the Large Observatory For X-ray Timing ( LOFT ), with a 8.5 m 2 photon- collecting area in the 2–30 keV bandpass at CCD-class spectral resolving power (λ/Δλ = 10 – 100), is designed for optimum performance on b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::538c00cf7a791ef496b56f1428347bbe
https://doi.org/10.2172/1167485
https://doi.org/10.2172/1167485
Autor:
S. Bradley Cenko, Jimmy A. Irwin, Mark Reynolds, Kayhan Gültekin, W. Peter Maksym, P. T. O'Brien, Nial R. Tanvir, M. Coleman Miller, Jelle de Plaa, James Guillochon, G. C. Brown, T. E. Strohmayer, Jon M. Miller, Frits Paerels, Jelle Kaastra, Dipankar Maitra, Richard F. Mushotzky, Andrew J. Levan, Jeremy J. Drake, Suvi Gezari, Enrico Ramirez-Ruiz
Publikováno v:
NASA Astrophysics Data System
Nature, 526, 542-545
Nature, 526, 542-545
Tidal forces close to massive black holes can violently disrupt stars that make a close approach. These extreme events are discovered via bright X-ray and optical/UV flares in galactic centers. Prior studies based on modeling decaying flux trends hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::827133a3e1480019e99d891c0f4907bf