Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Peter L. Gonthier"'
Publikováno v:
Proceedings of 7th Annual Conference on High Energy Astrophysics in Southern Africa — PoS(HEASA2019).
Magnetars are the most powerful compact objects in the stellar mass range observed in the Milky Way. Periodicity seen in magnetar persistent emission and also in the temporal tails of powerful giant flares detected from three soft gamma repeaters, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20e54771f3f7d98c009f67c066fdbc1a
https://doi.org/10.22323/1.371.0036
https://doi.org/10.22323/1.371.0036
Publikováno v:
Proceedings of the International Astronomical Union. 13:108-111
Pulsed non-thermal quiescent emission between 10 keV and around 150 keV has been observed in ~10 magnetars. For inner magnetospheric models of such hard X-ray signals, resonant Compton upscattering of soft thermal photons from the neutron star surfac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ee4a5152a49aaa015fe856b2d4b6d40
https://doi.org/10.1017/s1743921317009073
https://doi.org/10.1017/s1743921317009073
Publikováno v:
NASA Astrophysics Data System
Scopus-Elsevier
Scopus-Elsevier
Pair cascades from millisecond pulsars (MSPs) may be a primary source of Galactic electrons and positrons that contribute to the increase in positron flux above 10 GeV as observed by PAMELA and AMS-02. The Fermi Large Area Telescope (LAT) has increas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65a78ca561dba09b89813e9c1f7f7c6c
https://doi.org/10.22323/1.236.0462
https://doi.org/10.22323/1.236.0462
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2016, 588, ⟨10.1051/0004-6361/201527821⟩
Astronomy and Astrophysics-A&A, 2016, 588, ⟨10.1051/0004-6361/201527821⟩
Thanks to the huge amount of gamma-ray pulsar photons collected by the Fermi Large Area Telescope since June 2008, it is now possible to constrain gamma-ray geometrical models by comparing simulated and observed light-curve morphological characterist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5836caee0e72f366726a495ca4b4a57
Autor:
Yew-Meng Koh, Alice K. Harding, Sara Frederick, Peter L. Gonthier, Elizabeth C. Ferrara, Victoria E. Mohr
Publikováno v:
The Astrophysical Journal. 863:199
We present the results of a population synthesis of radio and gamma-ray millisecond pulsars (MSPs) from the Galactic Disk (GD). Using 92 radio millisecond pulsars detected in 13 radio surveys and 54 Fermi MSPs detected as point sources in the first p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3044768dfa5e4b73bfac862ab89a37e9
https://doi.org/10.3847/1538-4357/aad08d
https://doi.org/10.3847/1538-4357/aad08d
Observations by the Fermi Large Area Telescope of gamma-ray millisecond pulsar light curves imply copious pair production in their magnetospheres, and not exclusively in those of younger pulsars. Such pair cascades may be a primary source of Galactic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ada972dc1a268d86f9a5826de51f24e
http://arxiv.org/abs/1506.01211
http://arxiv.org/abs/1506.01211
Autor:
Peter L. Gonthier, I. A. Grenier, M. Pierbattista, Matthew Kerr, Alice K. Harding, P. A. Caraveo, Tyrel J. Johnson
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2015, 575, pp.A3. ⟨10.1051/0004-6361/201423815⟩
Astronomy and Astrophysics-A&A, 2015, 575, pp.A3. ⟨10.1051/0004-6361/201423815⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2015, 575, pp.A3. ⟨10.1051/0004-6361/201423815⟩
Astronomy and Astrophysics-A&A, 2015, 575, pp.A3. ⟨10.1051/0004-6361/201423815⟩
In more than four years of observation the Large Area Telescope on board the Fermi satellite has identified pulsed $\gamma$-ray emission from more than 80 young pulsars, providing light curves with high statistics. Fitting the observations with geome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86228a29f57c3ec3cf3d2c2102281a32
https://hal-cea.archives-ouvertes.fr/cea-01290105
https://hal-cea.archives-ouvertes.fr/cea-01290105
Publikováno v:
Chinese Journal of Astronomy and Astrophysics. 6:97-104
Our recent studies of pulsar population statistics suggest that improvements of radio and gamma-ray beam geometry and luminosity models require further refinement. The goal of this project is to constrain the viewing geometry for some radio pulsars,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f844447e5515c274005501a92274e0b
https://doi.org/10.1088/1009-9271/6/s2/20
https://doi.org/10.1088/1009-9271/6/s2/20
Publikováno v:
Astrophysics and Space Science. 297:71-80
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e39680f697850c6307fad5db49999ead
https://doi.org/10.1007/s10509-005-7577-y
https://doi.org/10.1007/s10509-005-7577-y
Publikováno v:
The Astrophysical Journal. 604:775-790
We present results of a pulsar population synthesis study that incorporates a number of recent developments and some significant improvements over our previous study. We have included the results of the Parkes multi-beam pulsar survey in our select g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::948ee8d125a0d4c4901b5e68f9b043c3
https://doi.org/10.1086/382070
https://doi.org/10.1086/382070