Results 21 to 30 of about 89,753 (219)

The Supernova – Supernova Remnant Connection [PDF]

open access: yes, 2016
Many aspects of the progenitor systems, environments, and explosion dynamics of the various subtypes of supernovae are difficult to investigate at extragalactic distances where they are observed as unresolved sources. Alternatively, young supernova remnants in our own galaxy and in the Large and Small Magellanic Clouds offer opportunities to resolve ...
Milisavljevic, Dan, Fesen, Robert A.
openaire   +2 more sources

Arp 299-A: More than "just" a prolific supernova factory [PDF]

open access: yes, 2010
We present partial results from our monitoring of the nuclear region of the starburst galaxy IC 694 (=Arp 299-A) at radio wavelengths, aimed at discovering recently exploded core-collapse supernovae, as well as to determine their rate of explosion, which
Marco Bondi   +9 more
core   +1 more source

EMU Detection of a Large and Low Surface Brightness Galactic SNR G288.8–6.3

open access: yesThe Astronomical Journal, 2023
We present the serendipitous detection of a new Galactic supernova remnant (SNR), G288.8–6.3, using data from the Australian Square Kilometre Array Pathfinder (ASKAP) Evolutionary Map of the Universe (EMU) survey.
Miroslav D. Filipović   +38 more
doaj   +1 more source

Supernova Remnants and their Supernovae [PDF]

open access: yesInternational Astronomical Union Colloquium, 1988
AbstractObserving supernova remnants provides important clues to the nature of supernova explosions. Conversely, the late stages of stellar evolution and the mechanism of supernova explosions affect supernova remnants through circumstellar matter, stellar remnants, and nucleosynthesis. The elements of supernova classification and the connection between
openaire   +1 more source

Magnetohydrodynamic Simulations of the Supernova Remnant G1.9+0.3

open access: yesThe Astrophysical Journal, 2023
The youngest Galactic supernova remnant G1.9+0.3 shows a discrete feature between its radio and X-ray morphologies. The observed radio morphology features a single maximum in the north, while the X-ray observation shows two opposite “ears” on the east ...
Shaobo Zhang   +4 more
doaj   +1 more source

Search for gamma-ray emission from supernova remnants with the Fermi/LAT and MAGIC telescopes [PDF]

open access: yes, 2013
Vegeu ircresum1de1 ...
Universitat Autònoma de Barcelona. Departament de Física   +1 more
core   +1 more source

Particle propagation in clumpy supernova remnants [PDF]

open access: yesEPJ Web of Conferences, 2019
The presence of dense clumps in the environment where a supernova remnant expands might have a strong impact in shaping the observed hadronic gamma-ray spectrum.
Celli Silvia
doaj   +1 more source

Hubble Space Telescope Proper Motion Measurements of Supernova Remnant N132D: Center of Expansion and Age

open access: yesThe Astrophysical Journal, 2023
We present proper motion measurements of the oxygen-rich ejecta of the LMC supernova remnant N132D using two epochs of Hubble Space Telescope Advanced Camera for Surveys data spanning 16 years.
John Banovetz   +10 more
doaj   +1 more source

Multiple-supernova remnants [PDF]

open access: yesInternational Astronomical Union Colloquium, 1989
ABSTRACTThe present observational and theoretical status of multiple-supernova remnants is briefly reviewed, and evolutionary models of the remnants around OB associations are presented. The remnants are followed for up to almost 30 Myr in various galactic environments (Gaussian or composite disks combined with cold or hot halos).
openaire   +1 more source

The Effects of Elemental Abundances on Fitting Supernova Remnant Models to Data

open access: yesUniverse, 2022
Models for supernova remnant (SNR) evolution can be used to determine the energy of the explosion, the age of the SNR, and the density of the surrounding medium by matching observations. Observed SNR properties derived from the X-ray spectrum include the
Denis A. Leahy
doaj   +1 more source

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