Results 121 to 130 of about 1,321 (200)

The Crab Nebula Revisited Using HST/WFC3

The Astrophysical Journal
It has been over 24 years since the iconic Crab Nebula has been visited by the high spatial resolution eye of the Hubble Space Telescope (HST). The expanding nebula is dynamic on these timescales, with many of the outer filaments of the nebula known to ...
William P. Blair, Ravi Sankrit, Dan Milisavljevic, Tea Temim, J. Martin Laming, Patrick Slane, Ziwei Ding, Thomas Martin   +7 more
doaj   +1 more source

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source

On the Contribution of Unresolved Pulsars to the Ultra-high-energy Galactic Diffuse Gamma-Ray Emission

The Astrophysical Journal Letters
The ultra-high-energy (UHE) Galactic diffuse gamma-ray emission holds important information on the propagation of cosmic rays in the Galaxy. However, its measurements suffer from a contamination from unresolved sources whose contribution remains unclear.
Samy Kaci, Gwenael Giacinti, Dmitri Semikoz   +2 more
doaj   +1 more source

A GeV-TeV particle component and the barrier of cosmic-ray sea in the Central Molecular Zone. [PDF]

Nat Commun, 2021
Huang X, Yuan Q, Fan YZ.
europepmc   +1 more source

Echoes in Different Tempo: Long-term Monitoring of Crab Echoes with CHIME

The Astrophysical Journal
The Crab pulsar is known to feature plasma lensing events known as echoes. These events are characterized by additional components in the pulse profile, which are produced by additional images formed when the pulsar’s radio emission is deflected by ...
Thierry Serafin Nadeau, Marten H. van Kerkwijk, Jing Luo, Robert Main, Kiyoshi W. Masui, James W. McKee, Ue-Li Pen   +6 more
doaj   +1 more source

Magnetic fields and relativistic electrons fill entire galaxy cluster. [PDF]

Sci Adv, 2022
Botteon A, van Weeren RJ, Brunetti G, Vazza F, Shimwell TW, Brüggen M, Brüggen M, Röttgering HJA, de Gasperin F, Akamatsu H, Bonafede A, Cassano R, Cuciti V, Dallacasa D, Di Gennaro G, Gastaldello F.   +15 more
europepmc   +1 more source

Supernova remnant and pulsar wind nebula interactions [PDF]

, 2004
8 pages, review, for "3-D Signatures in Stellar Explosions: A Workshop honoring J.
openaire   +2 more sources

A Melody in the Noise: Modeling Echoes of the Crab Nebula

The Astrophysical Journal
Pulses from the Crab pulsar are often followed by “echoes,” produced by radiation that was deflected by structures in the Crab Nebula and thus traveled via longer paths.
Thierry Serafin Nadeau, Marten H. van Kerkwijk   +1 more
doaj   +1 more source

Discovering the sky at the longest wavelengths with a lunar orbit array. [PDF]

Philos Trans A Math Phys Eng Sci, 2021
Chen X, Yan J, Deng L, Wu F, Wu L, Xu Y, Zhou L.   +6 more
europepmc   +1 more source

Multiwavelength Investigation of γ-Ray Source MGRO J1908+06 Emission Using Fermi-LAT, VERITAS and HAWC

The Astrophysical Journal
This paper investigates the origin of the γ -ray emission from MGRO J1908+06 in the GeV–TeV energy band. By analyzing the data collected by the Fermi Large Area Telescope, the Very Energetic Radiation Imaging Telescope Array System, and High Altitude ...
A. Acharyya, C. B. Adams, P. Bangale, J. T. Bartkoske, W. Benbow, J. H. Buckley, J. L. Christiansen, A. J. Chromey, A. Duerr, M. Errando, A. Falcone, Q. Feng, G. M. Foote, L. Fortson, A. Furniss, W. Hanlon, D. Hanna, O. Hervet, C. E. Hinrichs, J. Holder, T. B. Humensky, W. Jin, P. Kaaret, M. Kertzman, D. Kieda, T. K. Kleiner, N. Korzoun, S. Kumar, M. J. Lang, M. Lundy, G. Maier, C. E McGrath, M. J. Millard, J. Millis, C. L. Mooney, P. Moriarty, R. Mukherjee, W. Ning, R. A. Ong, N. Park, M. Pohl, E. Pueschel, J. Quinn, P. L. Rabinowitz, K. Ragan, D. Ribeiro, E. Roache, J. L. Ryan, I. Sadeh, L. Saha, G. H. Sembroski, R. Shang, M. Splettstoesser, A. K. Talluri, J. V. Tucci, J. Valverde, V. V. Vassiliev, A. Weinstein, D. A. Williams, S. L. Wong, J. Woo, The VERITAS Collaboration, R. Alfaro, C. Alvarez, J. C. Arteaga-Velázquez, D. Avila Rojas, R. Babu, E. Belmont-Moreno, A. Bernal, K. S. Caballero-Mora, T. Capistrán, A. Carramiñana, S. Casanova, J. Cotzomi, S. Coutiño de León, E. De la Fuente, D. Depaoli, N. Di Lalla, R. Diaz Hernandez, M. A. DuVernois, C. Espinoza, K. L. Fan, K. Fang, N. Fraija, J. A. García-González, F. Garfias, M. M. González, J. A. Goodman, S. Groetsch, S. Hernández-Cadena, J. Hinton, D. Huang, F. Hueyotl-Zahuantitla, A. Iriarte, S. Kaufmann, D. Kieda, J. Lee, H. León Vargas, A. L. Longinotti, G. Luis-Raya, K. Malone, J. Martínez-Castro, J. A. Matthews, P. Miranda-Romagnoli, J. A. Morales-Soto, E. Moreno, M. Mostafá, L. Nellen, E. G. Pérez-Pérez, C. D. Rho, D. Rosa-González, H. Salazar, A. Sandoval, M. Schneider, J. Serna-Franco, Y. Son, R. W. Springer, O. Tibolla, K. Tollefson, I. Torres, R. Torres-Escobedo, R. Turner, F. Ureña-Mena, E. Varela, X. Wang, H. Zhou, The HAWC Collaboration, J. Eagle, S. Kumar, The Fermi-LAT Collaboration   +129 more
doaj   +1 more source