Zobrazeno 1 - 10
of 437
pro vyhledávání: '"Pulsar wind nebulae"'
Autor:
Tea Temim, J. Martin Laming, P. J. Kavanagh, Nathan Smith, Patrick Slane, William P. Blair, Ilse De Looze, Niccolò Bucciantini, Anders Jerkstrand, Nicole Marcelina Gountanis, Ravi Sankrit, Dan Milisavljevic, Armin Rest, Maxim Lyutikov, Joseph DePasquale, Thomas Martin, Laurent Drissen, John Raymond, Ori D. Fox, Maryam Modjaz, Anatoly Spitkovsky, Louis-Gregory Strolger
Publikováno v:
The Astrophysical Journal Letters, Vol 968, Iss 2, p L18 (2024)
We present JWST observations of the Crab Nebula, the iconic remnant of the historical SN 1054. The observations include NIRCam and MIRI imaging mosaics plus MIRI/MRS spectra that probe two select locations within the ejecta filaments. We derive a hig
Externí odkaz:
https://doaj.org/article/3e5e477407b94e3a8355abbf8df8294f
Autor:
Stephen Reynolds, Hongjun An, Moaz Abdelmaguid, Jason Alford, Chris Fryer, Kaya Mori, Melania Nynka, Jaegeun Park, Yukikatsu Terada, Jooyun Woo, Aya Bamba, Priyadarshini Bangale, Rebecca Diesing, Jordan Eagle, Stefano Gabici, Joseph Gelfand, Brian Grefenstette, Javier Garcia, Chanho Kim, Sajan Kumar, Brydyn Mac Intyre, Kristin Madsen, Silvia Manconi, Yugo Motogami, Hayato Ohsumi, Barbara Olmi, Toshiki Sato, Ruo-Yu Shang, Daniel Stern, Naomi Tsuji, George Younes, Andreas Zoglauer
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
HEX-P is a probe-class mission concept that will combine high spatial resolution X-ray imaging (
Externí odkaz:
https://doaj.org/article/6e917059717f499293c733ffa95e3010
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 84 (2024)
In this study, we report the likely GeV γ -ray emissions originating from the pulsar PSR J1849-0001's pulsar wind nebula (PWN) G32.64+0.53. Our analysis covers approximately 14.7 yr of data from the Fermi Large Area Telescope Pass 8. The position of
Externí odkaz:
https://doaj.org/article/8b45ef1002b8470391ad048bb533be9a
Autor:
Seth Gagnon, Oleg Kargaltsev, Noel Klingler, Jeremy Hare, Hui Yang, Alexander Lange, Jordan Eagle
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 2, p 67 (2024)
We obtained a 108 ks Chandra X-ray Observatory (CXO) observation of PSR J1849-0001 and its pulsar wind nebula (PWN) coincident with the TeV source HESS J1849-000. By analyzing the new and old (archival) CXO data, we resolved the pulsar from the PWN,
Externí odkaz:
https://doaj.org/article/9344f5fe456641c9a4d1a9ea58b22723
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 1, p 44 (2024)
The Fermi All-sky Variability Analysis (FAVA) provides a photometric alternative for identifying week-long gamma-ray flares across the entire sky while being independent of any diffuse Galactic or isotropic emission model. We reviewed 779 weeks of Fe
Externí odkaz:
https://doaj.org/article/3f8c5bd2516a43e1a9214a327323bf1d
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 2, p 127 (2024)
Pulsar wind nebula HESS J1849-000 is one of the sources that may emit PeV γ -ray photons based on the recent measurement by the Tibet Air Shower Array and the Large High Altitude Air Shower Observatory. We use a time-dependent model to investigate t
Externí odkaz:
https://doaj.org/article/3a1413d311bd4a1eaacecff2834e3571
Autor:
Yushan Chen, Hao Tong
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 179 (2024)
The repeated fast radio bursts FRB 121102A and FRB 190520B have been reported, along with a spatially coincident, compact, persistent radio emission. In this paper, we present a parameterized one-zone model, with the basic scenario that a relativisti
Externí odkaz:
https://doaj.org/article/59e1239ceac946698c91b6de9298464a
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 125 (2024)
The supernova remnant (SNR) 0540–69.3, twin of the Crab Nebula, offers an excellent opportunity to study the continuum emission from a young pulsar and pulsar wind nebula (PWN). We present observations taken with the Very Large Telescope instrument
Externí odkaz:
https://doaj.org/article/8d8c7cd8430542c7b5915665bd583485
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 65 (2024)
Magnetic fields are ubiquitous in the interstellar medium, including extended objects such as supernova remnants and diffuse halos around pulsars. Its turbulent characteristics govern the diffusion of cosmic rays and the multiwavelength emission from
Externí odkaz:
https://doaj.org/article/564687c09de6459cad07e1d227cf8825
Autor:
Xiaolei Guo, Yuliang Xin
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 28 (2024)
HESS J1813-178 is one of the brightest and most compact TeV γ -ray sources, and whether its γ -ray emission is associated with supernova remnant (SNR), pulsar wind nebula (PWN), or young stellar cluster (YSC) is still under debate. By analyzing the
Externí odkaz:
https://doaj.org/article/5d8deb4e410f4f5098651687dfe7ec5e