Results 91 to 100 of about 37,813 (241)

Circinus X-1: survivor of a highly asymmetric supernova

, 1999
We have analyzed the kinematical parameters of Cir X-1 to constrain the nature of its companion star, the eccentricity of the binary and the pre-supernova parameter space.
Case, E. P. J. van den Heuvel, Eggleton, Fender, Fender, Flannery, Fryxell, H. M. Johnston, Haynes, Hills, Iben, Iben, Iben, Johnston, K. Wu, Kaluzienski, Pols, R. P. Fender, Stewart, T. M. Tauris, Tauris, Tennant, Wheeler   +22 more
core   +2 more sources

Inhomogeneous Stellar Mixing in the Final Hours before the Cassiopeia A Supernova

The Astrophysical Journal
Understanding stars and their evolution is a key goal of astronomical research and has long been a focus of human interest. In recent years, theorists have paid much attention to the final interior processes within massive stars, as they can be essential
Toshiki Sato, Kai Matsunaga, Hiroyuki Uchida, Satoru Katsuda, Koh Takahashi, Hideyuki Umeda, Tomoya Takiwaki, Ryo Sawada, Takashi Yoshida, Ko Nakamura, Yui Kuboike, Paul P. Plucinsky, John P. Hughes   +12 more
doaj   +1 more source

Wide-field X-ray observations of the supernova remnant Puppis A with the SRG/ART-XC telescope [PDF]

, 2021
Roman Krivonos, V. Arefiev, I. Lapshov, E. Filippova, R. Burenin, A. Semena, С. А. Гребенев, S. Sazonov, A. E. Shtykovsky, A. Tkachenko, Lutovinov, A.   +10 more
openalex   +1 more source

Revealing a peculiar supernova remnant G106.3+2.7 as a petaelectronvolt proton accelerator with X-ray observations. [PDF]

Innovation (Camb), 2021
Ge C, Liu RY, Niu S, Chen Y, Wang XY.
europepmc   +1 more source

DO WE SEE THE ‘IRON PEAK’?

Acta Polytechnica, 2013
Recent measurements of the cosmic ray (CR) energy spectrum in the PeV region and above have confirmed the remarkable sharpness of the knee and revealed another structure at about 70PeV which we call the ‘Iron Peak’.
Anatoly D. Erlykin, Arnold W. Wolfendale
doaj   +1 more source

Constraints on the cosmic ray diffusion coefficient in the W28 region from gamma-ray observations

, 2010
GeV and TeV gamma rays have been detected from the supernova remnant W28 and its surroundings. Such emission correlates quite well with the position of dense and massive molecular clouds and thus it is often interpreted as the result of hadronic cosmic ...
Aharonian, F. A., Casanova, S., Gabici, S., Rowell, G.   +3 more
core   +1 more source

Extended GeV-TeV Emission around Gamma-Ray Burst Remnants, and the Case of W49B

, 2004
We investigate the high-energy photon emission around Gamma-Ray Burst (GRB) remnants caused by ultrahigh-energy cosmic rays (UHECRs) from the GRBs. We apply the results to the recent report that the supernova remnant W49B is a GRB remnant in our Galaxy ...
Aharonian F. A., Atoyan A. M., Kunihito Ioka, Peter Mészáros, Shiho Kobayashi   +4 more
core   +2 more sources

Supernova Ia Remnants with M-dwarf Surviving Companions

The Astrophysical Journal
We study the possibility that Type Ia supernovae might be produced by binary systems where the companion of the exploding white dwarf is an M-dwarf star.
Kuo-Chuan Pan, Pilar Ruiz-Lapuente, Jonay I. González Hernández   +2 more
doaj   +1 more source

Re-identification of G35.6-0.4 as a supernova remnant

, 2009
G35.6-0.4 is an extended radio source in the Galactic plane which has previously been identified as either a supernova remnant or an HII region. Observations from the VLA Galactic Plane Survey at 1.4 GHz with a resolution of 1 arcmin allow the extent of ...
Altenhoff, Angerhofer, Beard, Caswell, Caswell, Clark, Cohen, Condon, D. A. Green, Dickel, Dickel, Dickel, Downes, Gaensler, Green, Green, Green, Green, Handa, Haynes, Hobbs, Hobbs, Ilovaisky, Jiménez-Esteban, Kuchar, Kwok, Landecker, Lockman, Milne, Milne, Miville-Deschênes, Parker, Phillips, Reich, Salter, Stil, Velusamy   +36 more
core   +1 more source

The Green Monster Hiding in Front of Cas A: JWST Reveals a Dense and Dusty Circumstellar Structure Pockmarked by Ejecta Interactions

The Astrophysical Journal Letters
JWST observations of the young Galactic supernova remnant Cassiopeia A revealed an unexpected structure seen as a green emission feature in colored composite MIRI F1130W and F1280W images—hence dubbed the Green Monster—that stretches across the central ...
Ilse De Looze, Dan Milisavljevic, Tea Temim, Danielle Dickinson, Robert Fesen, Richard G. Arendt, Jeremy Chastenet, Salvatore Orlando, Jacco Vink, Michael J. Barlow, Florian Kirchschlager, Felix D. Priestley, John C. Raymond, Jeonghee Rho, Nina S. Sartorio, Tassilo Scheffler, Franziska Schmidt, William P. Blair, Ori Fox, Christopher Fryer, Hans-Thomas Janka, Bon-Chul Koo, J. Martin Laming, Mikako Matsuura, Dan Patnaude, Mónica Relaño, Armin Rest, Judy Schmidt, Nathan Smith, Niharika Sravan   +29 more
doaj   +1 more source