Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Keith Jahoda"'
Autor:
P. Kaaret, M. Kounkel, D. M. LaRocca, A. Zajczyk, J. Richardson, J. Bluem, K. D. Kuntz, Dimitra Koutroumpa, R. Ringuette, Keith Jahoda
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2021, 918 (2), pp.41. ⟨10.3847/1538-4357/ac0e33⟩
The Astrophysical Journal, American Astronomical Society, 2021, 918 (2), pp.41. ⟨10.3847/1538-4357/ac0e33⟩
International audience; X-ray emission from solar wind charge exchange (SWCX) produced in interplanetary space contaminates every astrophysical observation, regardless of the line of sight. Unfortunately, the primary SWCX emission lines also happen t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c60749cf93cc07b9ff3ba405acc749d
https://hal-insu.archives-ouvertes.fr/insu-03338252
https://hal-insu.archives-ouvertes.fr/insu-03338252
Publikováno v:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXIII.
As part of an on-going program of X-ray polarimeter development at NASA Goddard Space Flight Center, we have built a Hard X-ray Photoelectric Polarimeter (HXPP) designed for astrophysical observations in 10-60 keV band. HXPP’s detection method is b
Autor:
R. Taverna, Keith Jahoda, Gianpiero Tagliaferri, Paolo Soffitta, Eugene Churazov, Roberto Turolla, Jacco Vink, Philip Kaaret, Pierre Olivier Petrucci, Fabio Muleri, Jeremy S. Heyl, Timothy R. Kallman, Julien Malzac, Herman L. Marshall, I. Khabibullin, C. G. Mundell, Silvia Zane, Frédéric Marin, Mark Pearce, Juri Poutanen, Henric Krawczynski, Adam Ingram, Roger W. Romani, Giorgio Matt, Michal Dovciak, Vladimir Karas, Andrea Santangelo, Niccolò Bucciantini, Enrico Costa, Hua Feng
Publikováno v:
Experimental Astronomy
Experimental Astronomy, Springer Link, 2021, 51 (3), pp.1109-1141. ⟨10.1007/s10686-021-09722-y⟩
Experimental Astronomy, 2021, 51 (3), pp.1109-1141. ⟨10.1007/s10686-021-09722-y⟩
Experimental Astronomy, Springer Link, 2021, 51 (3), pp.1109-1141. ⟨10.1007/s10686-021-09722-y⟩
Experimental Astronomy, 2021, 51 (3), pp.1109-1141. ⟨10.1007/s10686-021-09722-y⟩
X-ray polarimetry has long been considered the ‘holy grail’ of X-ray astronomy. Fortunately, after a silence of more than 40 years, the field is now rejuvenating. In fact, an X-ray polarimeter onboard a Cube-sat nano-satellite has been recently s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bee9ddb22bc11628b2a30cd5d92d6f4a
https://hal.archives-ouvertes.fr/hal-03441818
https://hal.archives-ouvertes.fr/hal-03441818
Autor:
E. M. Silich, P. Kaaret, Keith Jahoda, J. Richardson, Anna Zajczyk, R. Ringuette, D. M. LaRocca, Lorella Angelini
Previous detections of an X-ray emission line near 3.5 keV in galaxy clusters and other dark matter-dominated objects have been interpreted as observational evidence for the decay of sterile neutrino dark matter. Motivated by this, we report on a sea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcc4131fc4c2fa539668f3bab7fb2170
http://arxiv.org/abs/2105.12252
http://arxiv.org/abs/2105.12252
Autor:
William Fuelberth, Philip Kaaret, R. Ringuette, J. Bluem, Anna Zajczyk, K. D. Kuntz, Keith Jahoda, D. M. LaRocca
The Cygnus Superbubble (CSB) is a region of soft X-ray emission approximately 13 degrees wide in the direction of the local spiral arm. Such a large region might be the result of strong stellar winds and supernovae from nearby stellar nurseries, or i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f285061e61d2dde4631741c0f513a1c6
Autor:
Wataru Iwakiri, Kevin Black, Teruaki Enoto, Toru Tamagawa, Yuanhui Zhou, A. Hayato, Marina Tsutsumi, Takao Kitaguchi, Tomoshi Takeda, Keith Jahoda, Miho Okubo, Yuto Yoshida, Keisuke Uchiyama, Joanne E. Hill
Publikováno v:
Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray.
We present the first application of a time projection chamber polarimeter to measure high energy X-ray polarization above 10 keV. The polarimeter is designed based on the PRAXyS soft X-ray polarimeter. The sealed gas is changed to a gas mixture of 60
Autor:
Anna Zajczyk, Ross McCurdy, Philip Kaaret, Keith Jahoda, D. M. LaRocca, E. M. Silich, H. Gulick, William Fuelberth, W. T. Robison, D. L. Kirchner
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems. 6
HaloSat is a CubeSat-class microsatellite sensitive in the 0.4 to 7.0 keV energy band and designed to survey the entire sky in search of soft x-ray emissions from highly ionized oxygen residing in the halo of the Milky Way galaxy. Those observations
Autor:
Anna Zajczyk, E. M. Silich, R. Ringuette, Keith Jahoda, K. D. Kuntz, J. Bluem, D. M. LaRocca, Philip Kaaret
The Vela and Puppis A supernova remnants (SNRs) comprise a large emission region of $\sim 8^{\circ}$ diameter in the soft X-ray sky. The HaloSat CubeSat mission provides the first soft X-ray ($0.4-7$ keV) observation of the entire Vela SNR and Puppis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::112ace273818d79e04c61a1b7fd46ebe
Autor:
Keith Jahoda, Edmund Hodges-Kluck, A. Zajczyk, Dimitra Koutroumpa, R. Ringuette, D. M. LaRocca, J. Bluem, Philip Kaaret, H. Gulick, K. D. Kuntz
Publikováno v:
Nature Astronomy
Nature Astronomy, Nature Publishing Group, 2020, 4, pp.1072-1077. ⟨10.1038/s41550-020-01215-w⟩
Nature Astronomy, Nature Publishing Group, 2020, 4, pp.1072-1077. ⟨10.1038/s41550-020-01215-w⟩
The Milky Way galaxy is surrounded by a circumgalactic medium (CGM) that may play a key role in galaxy evolution as the source of gas for star formation and a repository of metals and energy produced by star formation and nuclear activity. The CGM ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ed2275fa67a6f661a29ca558a824d6b
Autor:
Philip Kaaret, Anna Zajczyk, W. T. Robison, Thomas E. Johnson, E. M. Silich, H. Gulick, R. Ringuette, William Fuelberth, D. M. LaRocca, Ross McCurdy, J. Bluem, Drew M. Miles, K. D. Kuntz, Keith Jahoda, D. L. Kirchner, Dimitra Koutroumpa
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2019, 884 (2), pp.162. ⟨10.3847/1538-4357/ab4193⟩
The Astrophysical Journal, American Astronomical Society, 2019, 884 (2), pp.162. ⟨10.3847/1538-4357/ab4193⟩
HaloSat is a small satellite (CubeSat) designed to map soft X-ray oxygen line emission across the sky in order to constrain the mass and spatial distribution of hot gas in the Milky Way. The goal of HaloSat is to help determine if hot gas gravitation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e77e0924e7c4a8b8aff938044c489817
https://hal.archives-ouvertes.fr/hal-02329380
https://hal.archives-ouvertes.fr/hal-02329380