Results 141 to 150 of about 197,763 (248)

Probing X-ray Absorption and Optical Extinction in the Interstellar Medium Using Chandra Observations of Supernova Remnants

open access: yes, 2016
We present a comprehensive study of interstellar X-ray extinction using the extensive Chandra supernova remnant archive and use our results to refine the empirical relation between the hydrogen column density and optical extinction.
Foight, Dillon   +3 more
core   +1 more source

Searches for other vacua. Part I. Bubbles in our universe

open access: yesJournal of High Energy Physics, 2019
We discuss models in which vacua other than our own can be directly observed in the present universe. Models with density-dependent vacuum structure can give rise to ‘non-lethal’-vacua: vacua with lower energy-density than our vacuum, but only in regions
Anson Hook, Junwu Huang
doaj   +1 more source

The Interaction of the Supernova Remnant VRO 42.05.01 with its HI Environment [PDF]

open access: bronze, 1988
T. L. Landecker   +3 more
openalex   +1 more source

Supernova Ejecta with Crystalline Silicate Dust in the Supernova Remnant MSH 15–52

open access: yesThe Astrophysical Journal
IRAS 15099-5856 in the young supernova remnant (SNR) MSH 15−52 is the first and only SNR-associated object with crystalline silicate dust detected so far, although its nature and the origin of the crystalline silicate are still unclear. In this paper, we
Hyun-Jeong Kim   +2 more
doaj   +1 more source

COSMIC-RAY STREAMING FROM SUPERNOVA REMNANTS AND GAMMA-RAY EMISSION FROM NEARBY MOLECULAR CLOUDS [PDF]

open access: bronze, 2012
Huirong Yan   +5 more
openalex   +1 more source

Distances to Recent Near-Earth Supernovae from Geological and Lunar 60Fe

open access: yesThe Astrophysical Journal
Near-Earth supernova blasts which engulf the solar system have left traces of their ejecta in the geological and lunar records. There is now a wealth of data on live radioactive ^60 Fe pointing to a supernova at 3 Myr ago, as well as the recent discovery
Adrienne F. Ertel, Brian D. Fields
doaj   +1 more source

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