Zobrazeno 1 - 10
of 87
pro vyhledávání: '"High mass x-ray binary stars"'
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L44 (2024)
Fast radio bursts (FRBs) are transient radio signals with millisecond-duration, large dispersion measure and extremely high brightness temperature. Among them, FRB 20180916B has been found to have a 16 days periodically modulated activity. However, t
Externí odkaz:
https://doaj.org/article/a8438d5046f04cab95c9be2fad277615
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 1, p L5 (2024)
We model the spectral formation occurring in the binary X-ray pulsar (XRP) RX J0209.6−7427 during the 2019 super-Eddington outburst. Using a theoretical model previously developed by the authors, we are able to produce spectra that closely resemble
Externí odkaz:
https://doaj.org/article/3af818f090e84c6bb2353bc12f957bde
Autor:
Thomas M. Gaudin, Jamie A. Kennea, M. J. Coe, I. M. Monageng, Andrzej Udalski, L. J. Townsend, David A. H. Buckley, Phil A. Evans
Publikováno v:
The Astrophysical Journal Letters, Vol 965, Iss 1, p L10 (2024)
We report on the discovery of Swift J010902.6-723710, a rare eclipsing Be/X-ray Binary system by the Swift SMC Survey (S-CUBED). Swift J010902.6-723710 was discovered via weekly S-CUBED monitoring observations when it was observed to enter a state of
Externí odkaz:
https://doaj.org/article/4887c9becd79413dae573ebbad619741
Autor:
Philip Kaaret, Riccardo Ferrazzoli, Stefano Silvestri, Michela Negro, Alberto Manfreda, Kinwah Wu, Enrico Costa, Paolo Soffitta, Samar Safi-Harb, Juri Poutanen, Alexandra Veledina, Alessandro Di Marco, Patrick Slane, Stefano Bianchi, Adam Ingram, Roger W. Romani, Nicolò Cibrario, Brydyn Mac Intyre, Romana Mikus̆incová, Ajay Ratheesh, James F. Steiner, Jiri Svoboda, Stefano Tugliani, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Fiamma Capitanio, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolò Di Lalla, Immacolata Donnarumma, Victor Doroshenko, Michal Dovčiak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Javier A. García, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana G. Jorstad, Vladimir Karas, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Henric Krawczynski, Fabio La Monaca, Luca Latronico, Ioannis Liodakis, Simone Maldera, Frédéric Marin, Andrea Marinucci, Alan P. Marscher, Herman L. Marshall, Francesco Massaro, Giorgio Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Fabio Muleri, Chi-Yung Ng, Stephen L. O’Dell, Nicola Omodei, Chiara Oppedisano, Alessandro Papitto, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Pierre-Olivier Petrucci, Maura Pilia, Andrea Possenti, Simonetta Puccetti, Brian D. Ramsey, John Rankin, Oliver J. Roberts, Carmelo Sgrò, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Francesco Tombesi, Alessio Trois, Sergey S. Tsygankov, Roberto Turolla, Jacco Vink, Martin C. Weisskopf, Fei Xie, Silvia Zane
Publikováno v:
The Astrophysical Journal Letters, Vol 961, Iss 1, p L12 (2024)
How astrophysical systems translate the kinetic energy of bulk motion into the acceleration of particles to very high energies is a pressing question. SS 433 is a microquasar that emits TeV γ -rays indicating the presence of high-energy particles. A
Externí odkaz:
https://doaj.org/article/1687db82e3c4436796c7a15f3255669e
Autor:
R. M. Ludlam, C. Malacaria, E. Sokolova-Lapa, F. Fuerst, P. Pradhan, A. W. Shaw, K. Pottschmidt, S. Pike, G. Vasilopoulos, J. Wilms, J. A. García, K. Madsen, D. Stern, C. Maitra, M. Del Santo, D. J. Walton, M. C. Brumback, J. van den Eijnden
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Accreting neutron stars (NSs) represent a unique laboratory for probing the physics of accretion in the presence of strong magnetic fields (B ≳ 108 G). Additionally, the matter inside the NS itself exists in an ultra-dense, cold state that cannot b
Externí odkaz:
https://doaj.org/article/40471cbe8bd040df8c4284253ba4023e
Autor:
Robin H. D. Corbet, Ralf Ballhausen, Peter A. Becker, Joel B. Coley, Felix Fuerst, Keith C. Gendreau, Sebastien Guillot, Nazma Islam, Gaurava Kumar Jaisawal, Peter Jenke, Peter Kretschmar, Alexander Lange, Christian Malacaria, Mason Ng, Katja Pottschmidt, Pragati Pradhan, Paul S. Ray, Richard E. Rothschild, Philipp Thalhammer, Lee J. Townsend, Joern Wilms, Colleen A. Wilson-Hodge, Michael T. Wolff
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 1, p 137 (2024)
XTE J1829−098 is a transient X-ray pulsar with a period of ∼7.8 s. It is a candidate Be star system, although the evidence for this is not yet definitive. We investigated the twenty-year-long X-ray light curve using the Rossi X-ray Timing Explore
Externí odkaz:
https://doaj.org/article/a8124f69df4242848fe1d5755edbdfe6
Autor:
R. Alfaro, C. Alvarez, J. C. Arteaga-Velázquez, D. Avila Rojas, H. A. Ayala Solares, R. Babu, E. Belmont-Moreno, A. Bernal, K. S. Caballero-Mora, T. Capistrán, A. Carramiñana, S. Casanova, J. Cotzomi, E. De la Fuente, D. Depaoli, N. Di Lalla, R. Diaz Hernandez, B. L. Dingus, M. A. DuVernois, K. Engel, T. Ergin, C. Espinoza, K. L. Fan, K. Fang, N. Fraija, S. Fraija, J. A. García-González, A. Gonzalez Muñoz, M. M. González, J. A. Goodman, S. Groetsch, J. P. Harding, S. Hernández-Cadena, I. Herzog, D. Huang, F. Hueyotl-Zahuantitla, P. Hüntemeyer, A. Iriarte, S. Kaufmann, A. Lara, W. H. Lee, J. Lee, C. de León, H. León Vargas, A. L. Longinotti, G. Luis-Raya, K. Malone, J. Martínez-Castro, J. A. Matthews, P. Miranda-Romagnoli, J. A. Montes, E. Moreno, M. Mostafá, L. Nellen, M. U. Nisa, R. Noriega-Papaqui, Y. Pérez Araujo, E. G. Pérez-Pérez, C. D. Rho, D. Rosa-González, E. Ruiz-Velasco, H. Salazar, A. Sandoval, M. Schneider, J. Serna-Franco, A. J. Smith, Y. Son, R. W. Springer, O. Tibolla, K. Tollefson, I. Torres, R. Torres-Escobedo, R. Turner, F. Ureña-Mena, E. Varela, L. Villaseñor, X. Wang, Z. Wang, I. J. Watson, S. Yu, S. Yun-Cárcamo, H. Zhou, HAWC collaboration
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 1, p 30 (2024)
Very-high-energy (0.1–100 TeV) gamma-ray emissions were observed in High-Altitude Water Cherenkov (HAWC) data from the lobes of the microquasar SS 433, making them the first set of astrophysical jets that were resolved at TeV energies. In this work
Externí odkaz:
https://doaj.org/article/b135b970eab9441c8191f80a6cbcb0df
Autor:
Hongwei Ge, Christopher A. Tout, Xuefei Chen, Song Wang, Jianping Xiong, Lifu Zhang, Zhenwei Li, Qingzhong Liu, Zhanwen Han
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 254 (2024)
Binary stars are responsible for many unusual astrophysical phenomena, including some important explosive cosmic events. The stability criteria for rapid mass transfer and common-envelope evolution are fundamental to binary star evolution. They deter
Externí odkaz:
https://doaj.org/article/9e7e0b0e098c4417b3403f351fb9fed9
Autor:
Jordan Eagle, Jeremy Hare, Elizabeth Hays, Daniel Castro, Joseph Gelfand, Jwaher Alnaqbi, Matthew Kerr, Shi Dai, Jean Ballet, Fabio Acero, Patrick Slane, Marco Ajello
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 247 (2024)
Gamma-ray emission is observed coincident in position to the evolved, composite supernova remnant (SNR) B0453–685. Prior multiwavelength investigations of the region indicate that the pulsar wind nebula (PWN) within the SNR is the most likely origi
Externí odkaz:
https://doaj.org/article/4499831975d249849d1a3256207a192d
Autor:
David Dickson
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 130 (2024)
While binary merger events have been an active area of study in both simulations and observational work, the formation channels by which a high-mass star extends from Roche lobe overflow (RLO) in a decaying orbit of a black-hole (BH) companion to a b
Externí odkaz:
https://doaj.org/article/3a745eca2d244d1188e546df38d7cc15