Zobrazeno 1 - 8
of 8
pro vyhledávání: '"J. A. J. Alford"'
Autor:
J. A. J. Alford, G. A. Younes, Z. Wadiasingh, M. Abdelmaguid, H. An, M. Bachetti, M. G. Baring, A. Beloborodov, A. Y. Chen, T. Enoto, J. A. García, J. D. Gelfand, E. V. Gotthelf, A. K. Harding, C-P. Hu, A. D. Jaodand, V. Kaspi, C. Kim, C. Kouveliotou, L. Kuiper, K. Mori, M. Nynka, J. Park, D. Stern, J. Valverde, D. J. Walton
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2024)
The hard X-ray emission from magnetars and other isolated neutron stars remains under-explored. An instrument with higher sensitivity to hard X-rays is critical to understanding the physics of neutron star magnetospheres and also the relationship bet
Externí odkaz:
https://doaj.org/article/0d5033e0213f452d803560def776d0fe
Autor:
J. A. J. Alford, J. P. Halpern
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 1, p 36 (2023)
Only three of the dozen central compact objects (CCOs) in supernova remnants (SNRs) show thermal X-ray pulsations due to nonuniform surface temperature (hot spots). The absence of X-ray pulsations from several unpulsed CCOs has motivated suggestions
Externí odkaz:
https://doaj.org/article/a21ec81a0bef408dafd96b2eab15d2a2
Publikováno v:
The Astrophysical Journal. 927:233
The surface temperature distributions of central compact objects (CCOs) are powerful probes of their crustal magnetic field strengths and geometries. Here we model the surface temperature distribution of RX J0822$-$4300, the CCO in the Puppis A super
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a109cec10fbc66003832f202bf53d6c3
https://doi.org/10.3847/1538-4357/ac4d9a
https://doi.org/10.3847/1538-4357/ac4d9a
Autor:
Simon Johnston, Marcus E. Lower, Tatehiro Mihara, Eric V. Gotthelf, Stefan Oslowski, Matthew Bailes, Shi Dai, Fernando Camilo, K. K. Madsen, Hitoshi Negoro, Hiromasa Miyasaka, J. A. J. Alford, Jules P. Halpern, Nobuyuki Kawai
We present the earliest X-ray observations of the 2018 outburst of XTE J1810-197, the first outburst since its 2003 discovery as the prototypical transient and radio-emitting anomalous X-ray pulsar (AXP). The Monitor of All-sky X-ray Image (MAXI) det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f76c6376cb1c7688785815b77ed385e
http://arxiv.org/abs/1902.08358
http://arxiv.org/abs/1902.08358
Autor:
Simon Johnston, Fernando Camilo, Scott M. Ransom, John Sarkissian, Jules P. Halpern, W. van Straten, Ismaël Cognard, John Reynolds, J. A. J. Alford
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2016, 820 (2), pp.110. ⟨10.3847/0004-637X/820/2/110⟩
The Astrophysical Journal, American Astronomical Society, 2016, 820 (2), pp.110. ⟨10.3847/0004-637X/820/2/110⟩
We report on timing, flux density, and polarimetric observations of the transient magnetar and 5.54 s radio pulsar XTE J1810-197 using the GBT, Nancay, and Parkes radio telescopes beginning in early 2006, until its sudden disappearance as a radio sou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9e8bb41693b6e16ba6df244ab6167c4
https://hal-insu.archives-ouvertes.fr/insu-01327169/document
https://hal-insu.archives-ouvertes.fr/insu-01327169/document
Autor:
E. V. Gotthelf, J. P. Halpern, J. A. J. Alford, T. Mihara, H. Negoro, N. Kawai, S. Dai, M. E. Lower, S. Johnston, M. Bailes, S. Osłowski, F. Camilo, H. Miyasaka, K. K. Madsen
Publikováno v:
Astrophysical Journal Letters; Apr2019, Vol. 874 Issue 2, p1-1, 1p
Autor:
F. Camilo, S. M. Ransom, J. P. Halpern, J. A. J. Alford, I. Cognard, J. E. Reynolds, S. Johnston, J. Sarkissian, W. van Straten
Publikováno v:
Astrophysical Journal; 4/1/2016, Vol. 820 Issue 2, p1-1, 1p
Autor:
J. A. J. Alford, J. P. Halpern
Publikováno v:
Astrophysical Journal; 2/20/2016, Vol. 818 Issue 2, p1-1, 1p