Results 51 to 60 of about 167,251 (265)
Cosmic ray induced ionisation of a molecular cloud shocked by the W28 supernova remnant [PDF]
Cosmic rays are an essential ingredient in the evolution of the interstellar medium, as they dominate the ionisation of the dense molecular gas, where stars and planets form.
S. Vaupré+5 more
semanticscholar +1 more source
The many sides of RCW 86: a type Ia supernova remnant evolving in its progenitor's wind bubble [PDF]
We present the results of a detailed investigation of the Galactic supernova remnant RCW 86 using the XMM-Newton X-ray telescope. RCW 86 is the probable remnant of SN 185 A.D., a supernova that likely exploded inside a wind-blown cavity.
S. Broersen+3 more
semanticscholar +1 more source
AbstractThe present structure and recent changes in Cas A are discussed. On the deepest available exposures the optical remnant of this supernova is seen to consist of an almost complete shell. The southern part of this shell is outlined by knots that have developed during the last decade.
openaire +2 more sources
Neutrinos from Supernovas and Supernova Remnants [PDF]
Supernovae (SN) and supernova remnants (SNR) have key roles in galaxies, but their physical descriptions is still incomplete. Thus, it is of interest to study neutrino radiation to understand SN and SNR better. We will discuss: (1) The ~10 MeV thermal neutrinos that arise from core collapse SN, that were observed for SN1987A, and can be seen with ...
M.L. Costantini, Francesco Vissani
openaire +3 more sources
SUPERNOVA REMNANT W49B AND ITS ENVIRONMENT [PDF]
We study gamma-ray supernova remnant (SNR) W49B and its environment using recent radio and infrared data. Spitzer Infrared Spectrograph low resolution data of W49B shows shocked excitation lines of H2 (0,0) S(0)–S(7) from the SNR–molecular cloud ...
H. Zhu, Wenwu Tian, Wenwu Tian, Pei Zuo
semanticscholar +1 more source
Abstract An almost perfect round hole of CO-line emission with a diameter of 3.7 pc was found in a molecular cloud (MC) centered on G35.75−0.25 (l = 35${{^{\circ}_{.}}}$75, b = −0${{^{\circ}_{.}}}$25) at radial velocity of 28 km s−1.
openaire +4 more sources
FERMI LARGE AREA TELESCOPE DETECTION OF SUPERNOVA REMNANT RCW 86 [PDF]
Using 5.4 yr Fermi Large Area Telescope data, we report the detection of GeV γ-ray emission from the shell-type supernova remnant RCW 86 (G315.4-2.3) with a significance of ∼5.1σ.
Q. Yuan+3 more
semanticscholar +1 more source
Phosphorus in the Young Supernova Remnant Cassiopeia A [PDF]
We Are Stardust Most of the universe's chemical elements were produced in stars, with the heaviest elements being produced when stars explode. Barlow et al. (p. 1343) used the Herschel Space Observatory to obtain submillimeter spectra of the Crab Nebula,
B. Koo+4 more
semanticscholar +1 more source
Multifrequency radio observations of SNR J0536-6735 (N 59B) with associated pulsar [PDF]
We present a study of new Australian Telescope Compact Array (ATCA) observations of supernova remnant, SNR J0536-6735. This remnant appears to follow a shell morphology with a diameter of D=36x29 pc (with 1 pc uncertainty in each direction ...
Bozzetto L.M.+4 more
doaj +1 more source
On the nature of Tycho Brahe’s supernova
At the 450 years anniversary of its observation, the supernova named after Tycho Brahe, SN 1572, can be explained in the terms used nowadays to characterize Type Ia supernovae (SNe Ia).
Pilar Ruiz–Lapuente+1 more
doaj +1 more source