Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Andrea Sanna"'
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
Autor:
Mason Ng, Andrew K. Hughes, Jeroen Homan, Jon M. Miller, Sean N. Pike, Diego Altamirano, Peter Bult, Deepto Chakrabarty, D. J. K. Buisson, Benjamin M. Coughenour, Rob Fender, Sebastien Guillot, Tolga Güver, Gaurava K. Jaisawal, Amruta D. Jaodand, Christian Malacaria, James C. A. Miller-Jones, Andrea Sanna, Gregory R. Sivakoff, Tod E. Strohmayer, John A. Tomsick, Jakob van den Eijnden
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 232 (2024)
We report on X-ray (NICER/NuSTAR/MAXI/Swift) and radio (MeerKAT) timing and spectroscopic analysis from a 3 month monitoring campaign in 2022 of a high-intensity outburst of the dipping neutron star low-mass X-ray binary 1A 1744−361. The 0.5–6.8
Externí odkaz:
https://doaj.org/article/5ccdef75a9bf4d379adfc148e20856db
Autor:
Yanan Wang, Dheeraj R. Pasham, Diego Altamirano, Andrés Gúrpide, Noel Castro Segura, Matthew Middleton, Long Ji, Santiago del Palacio, Muryel Guolo, Poshak Gandhi, Shuang-Nan Zhang, Ronald Remillard, Dacheng Lin, Megan Masterson, Ranieri D. Baldi, Francesco Tombesi, Jon M. Miller, Wenda Zhang, Andrea Sanna
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 1, p 78 (2024)
The tidal disruption of a star around a supermassive black hole (SMBH) offers a unique opportunity to study accretion onto an SMBH on a human timescale. We present results from our 1000+ days monitoring campaign of AT 2019avd, a nuclear transient wit
Externí odkaz:
https://doaj.org/article/2d049c80b8e44b488fadbd82a88658c5
Autor:
Alessandro Di Marco, Fabio La Monaca, Juri Poutanen, Thomas D. Russell, Alessio Anitra, Ruben Farinelli, Guglielmo Mastroserio, Fabio Muleri, Fei Xie, Matteo Bachetti, Luciano Burderi, Francesco Carotenuto, Melania Del Santo, Tiziana Di Salvo, Michal Dovčiak, Andrea Gnarini, Rosario Iaria, Jari J. E. Kajava, Kuan Liu, Riccardo Middei, Stephen L. O’Dell, Maura Pilia, John Rankin, Andrea Sanna, Jakob van den Eijnden, Martin C. Weisskopf, Anna Bobrikova, Fiamma Capitanio, Enrico Costa, Philip Kaaret, Alessio Marino, Paolo Soffitta, Francesco Ursini, Filippo Ambrosino, Massimo Cocchi, Sergio Fabiani, Herman L. Marshall, Giorgio Matt, Sara Elisa Motta, Alessandro Papitto, Luigi Stella, Antonella Tarana, Silvia Zane, Iván Agudo, Lucio A. Antonelli, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, 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, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana G. Jorstad, Vladimir Karas, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Henric Krawczynski, Luca Latronico, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Frédéric Marin, Andrea Marinucci, Alan P. Marscher, Francesco Massaro, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Michela Negro, Chi-Yung Ng, Nicola Omodei, Chiara Oppedisano, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Pierre-Olivier Petrucci, Andrea Possenti, Simonetta Puccetti, Brian D. Ramsey, Ajay Ratheesh, Oliver J. Roberts, Roger W. Romani, Carmelo Sgrò, Patrick Slane, 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, Kinwah Wu, IXPE Collaboration
Publikováno v:
The Astrophysical Journal Letters, Vol 953, Iss 2, p L22 (2023)
This paper reports the first detection of polarization in the X-rays for atoll-source 4U 1820−303, obtained with the Imaging X-ray Polarimetry Explorer (IXPE) at 99.999% confidence level (CL). Simultaneous polarimetric measurements were also perfor
Externí odkaz:
https://doaj.org/article/0f9f9fd9caf9450bb1d486a4624c757f
Autor:
Giulia Illiano, Alessandro Papitto, Andrea Sanna, Peter Bult, Filippo Ambrosino, Arianna Miraval Zanon, Francesco Coti Zelati, Luigi Stella, Diego Altamirano, Maria Cristina Baglio, Enrico Bozzo, Luciano Burderi, Domitilla de Martino, Alessandro Di Marco, Tiziana di Salvo, Carlo Ferrigno, Vladislav Loktev, Alessio Marino, Mason Ng, Maura Pilia, Juri Poutanen, Tuomo Salmi
Publikováno v:
The Astrophysical Journal Letters, Vol 942, Iss 2, p L40 (2023)
We present a pulse timing analysis of NICER observations of the accreting millisecond X-ray pulsar SAX J1808.4−3658 during the outburst that started on 2022 August 19. Similar to previous outbursts, after decaying from a peak luminosity of ≃1 ×
Externí odkaz:
https://doaj.org/article/bf7de519f02f4fc3ada8d394167eef1c
Autor:
Z. Funda Bostancı, Tuğba Boztepe, Tolga Güver, Tod E. Strohmayer, Yuri Cavecchi, Ersin Göğüş, Diego Altamirano, Peter Bult, Deepto Chakrabarty, Sebastien Guillot, Gaurava K. Jaisawal, Christian Malacaria, Giulio C. Mancuso, Andrea Sanna, Jean H. Swank
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 1, p 55 (2023)
We present temporal and time-resolved spectral analyses of all the thermonuclear X-ray bursts observed from the neutron star low-mass X-ray binary 4U 1728−34 with NICER from 2017 June to 2019 September. In total, we detected 11 X-ray bursts from th
Externí odkaz:
https://doaj.org/article/6905d65800e64515a1cc3ff9c8650531
Autor:
Alberto Messina, Andrea Sanna, Roberto Iacoviello, Federico Debandi, Federico Manuri, Davide Zappia, Maurizio Montagnuolo
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 364:012048
In this paper a mixed reality application is introduced; this application runs on Microsoft Hololens and has been designed to provide information on a city scale. The application was developed to provide information about historical buildings, thus s
Autor:
Angelo F. Gambino, Rosario Iaria, Tiziana Di Salvo, Marco Matranga, Luciano Burderi, Fabio Pintore, Alessandro Riggio, Andrea Sanna
Publikováno v:
Research in Astronomy & Astrophysics; Sep2017, Vol. 17 Issue 10, p1-1, 1p