Results 141 to 150 of about 127,486 (216)

Swift Observations of X-ray supernovae [PDF]

open access: yes, 2011
We present a result of X-ray supernovae (SNe) survey using the Swift satellite public archive. An automatic searching program was designed to search X-ray SNe among all of the Swift archival observations between November 2004 and February 2011. Using the
Li, K. L., Pun, Chun. S. J.
core  

Recent near-Earth supernovae probed by global deposition of interstellar radioactive 60Fe

open access: yesNature, 2016
The rate of supernovae in our local Galactic neighbourhood within a distance of about 100 parsecs from Earth is estimated to be one every 2–4 million years, based on the total rate in the Milky Way (2.0 ± 0.7 per century).
A. Wallner   +14 more
semanticscholar   +1 more source

A Very-High-Energy Gamma-Ray View of the Transient Sky

open access: yesUniverse
The development of the latest generation of Imaging Atmospheric Cherenkov Telescopes (IACTs) over recent decades has led to the discovery of new extreme astrophysical phenomena in the very-high-energy (VHE, E > 100 GeV) gamma-ray regime.
Alessandro Carosi, Alicia López-Oramas
doaj   +1 more source

Multiwavelength View of Circumstellar Interaction in Supernovae

open access: yesUniverse
The interaction of post-explosion supernova ejecta with the surrounding circumstellar medium creates emissions across the electromagnetic spectrum. Since the circumstellar medium is created by the mass lost from the progenitor star, it carries tell-tale ...
Poonam Chandra
doaj   +1 more source

Strong Progenitor Age Bias in Supernova Cosmology and Alignment with DESI BAO

open access: yesUniverse
Supernova (SN) cosmology is based on the assumption that the luminosity of type Ia SNe, after the luminosity standardization process, remains invariant with progenitor age.
Chul Chung   +4 more
doaj   +1 more source

Cosmic ray contributions from rapidly rotating stellar mass black holes: cosmic Ray GeV to EeV proton and anti-proton sources

open access: yesFrontiers in Astronomy and Space Sciences
In Radio Super Novae (RSNe) a magnetic field of (B × r) = 1016.0±0.12 Gauss × cm is observed; these are the same numbers for Blue Super Giant (BSG) star explosions as for Red Super Giant (RSG) star explosions, despite their very different wind properties.
M. Allen   +19 more
doaj   +1 more source

Physical mechanism of core-collapse supernovae that neutrinos drive

open access: yesProceedings of the Japan Academy. Series B, Physical and Biological Sciences
The current understanding of the mechanism of core-collapse supernovae (CCSNe), one of the most energetic events in the universe associated with the death of massive stars and the main formation channel of compact objects such as neutron stars and black ...
Shoichi YAMADA   +8 more
doaj   +1 more source

The Evolution of Compact Binary Star Systems

open access: yesLiving Reviews in Relativity, 2006
We review the formation and evolution of compact binary stars consisting of white dwarfs (WDs), neutron stars (NSs), and black holes (BHs). Binary NSs and BHs are thought to be the primary astrophysical sources of gravitational waves (GWs) within the ...
Yungelson, Lev R., Postnov Konstantin A.
doaj  

Application of the Magnetar Engine to an Intermediate-Luminosity Gamma-Ray Burst Associated with the Supernova GRB 201015A/SN 201015A

open access: yesUniverse
We present optical photometry for the afterglow of GRB 201015A, which can be classified as a medium-luminosity gamma-ray burst (Lγ,iso≈2.55×1049ergs−1 ) and the associated underlying supernova SN 201015A.
Xingling Li   +4 more
doaj   +1 more source

The demographics of core-collapse supernovae

open access: yesAstronomy & Astrophysics
Context. The observational properties of core-collapse supernovae are shaped by the envelopes of their progenitors. In massive binary systems, mass-transfer drastically alters the pre-supernova structures compared to single stars, which leads to a ...
Ercolino Andrea   +5 more
doaj   +1 more source

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