Results 21 to 30 of about 6,394 (163)

Supernovae and Supernova, Remnants

open access: yesThe Astronomical Journal, 1968
Supernovae remnants evolution, properties and galactic distribution, discussing criteria for catalog listing and remnants as X ray ...
A. Poveda, L. Woltjer
openaire   +1 more source

Radio supernovae [PDF]

open access: yesProceedings of 8th European VLBI Network Symposium — PoS(8thEVN), 2007
In this article I will briely review the current status of radio observations of nearby supernovae and their remnants. This review will initially address observations of the radio light curves of nearby core-collapse supernovae, followed by a more detailed summary of recent Very Long Baseline Interferometric observations of the expansion of nearby ...
openaire   +2 more sources

Limit on Supernova Emission in the Brightest Gamma-Ray Burst, GRB 221009A

open access: yesThe Astrophysical Journal Letters, 2023
We present photometric and spectroscopic observations of the extraordinary gamma-ray burst (GRB) 221009A in search of an associated supernova. Some past GRBs have shown bumps in the optical light curve that coincide with the emergence of supernova ...
Manisha Shrestha   +32 more
doaj   +1 more source

Fundamental physics studies in time domain and multi-messenger astronomy

open access: yesFrontiers in Astronomy and Space Sciences
The era of ime domain and multi-messenger astronomy is not only leading to the development of a much broader set of detectors and instruments for astrophysical observations, but is also providing the means for astronomy to tie directly to cutting-edge ...
Chris Fryer
doaj   +1 more source

Observing Supernova Neutrino Light Curves with Super-Kamiokande. IV. Development of SPECIAL BLEND: A New Public Analysis Code for Supernova Neutrinos

open access: yesThe Astrophysical Journal, 2023
Supernova neutrinos are invaluable signals that offer information about the interior of supernovae. Because a nearby supernova can occur at any time, preparing for future supernova neutrino observation is an urgent task.
Akira Harada   +8 more
doaj   +1 more source

How Tycho Brahe’s recordings in 1572 support SN 1572 as a type I(a) supernova

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The 450th anniversary of the discovery of the SN 1572 supernova event was celebrated in 2022. A closer look at the historical development of the field of supernova astronomy reveals the scientific importance of Tycho Brahe’s 1572 observations of this ...
Tobias C. Hinse   +5 more
doaj   +1 more source

Supernovae, by Chandra and XMM-Newton

open access: yesUniverse
X-ray emission from supernovae can arise from multiple interactions during their evolution. The immediate explosion is sufficiently energetic to generate X-rays; so, too, is the impact of the shock as it runs into circumstellar matter from earlier mass ...
Eric M. Schlegel
doaj   +1 more source

Luminous Supernovae [PDF]

open access: yesScience, 2012
Stellar Explosions Stars that are born with masses greater than eight times that of the Sun end their lives in luminous explosions known as supernovae. Over the past decade, access to improved sky surveys has revealed rare types of supernovae that are much more luminous than any of those that were known before.
openaire   +3 more sources

The high energy X-ray probe (HEX-P): science overview

open access: yesFrontiers in Astronomy and Space Sciences
To answer NASA’s call for a sensitive X-ray observatory in the 2030s, we present the High Energy X-ray Probe (HEX-P) mission concept. HEX-P is designed to provide the required capabilities to explore current scientific questions and make new discoveries ...
Javier A. García   +74 more
doaj   +1 more source

Ghost particles in the universe: Neutrinos in astrophysics and cosmology

open access: yesMètode Science Studies Journal: Annual Review, 2017
  Neutrinos are nearly massless and very difficult to detect because they interact so very weakly. Sixty years after seeing the first of these «ghost particles» we know a lot about their properties.
Georg Gottfried Raffelt
doaj   +1 more source

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