Results 111 to 120 of about 21,733 (235)
Science, 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.
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Superluminous Supernovae No Threat From Eta Carinae [PDF]
, 2018 Recently Supernova 2006gy was noted as the most luminous ever recorded, with a total radiated energy of -10(44) Joules. It was proposed that the progenitor may have been a massive evolved star similar to n Carinae, which resides in our own galaxy at a ...
Thomas, Brian C., Melott, Adrian L., Fields, Brian D., and Anthony-Twarog, Barbara J.
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Constraining the Initial Mass Function via Stellar Transients
UniverseThe stellar initial mass function (IMF) represents a fundamental quantity in astrophysics and cosmology describing the mass distribution of stars from low mass all the way up to massive and very massive stars. It is intimately linked to a wide variety of
Francesco Gabrielli +6 more
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An Accelerating Universe without Lambda: Delta Gravity Using Monte Carlo
Universe, 2019 A gravitational field model based on two symmetric tensors, g μ ν and g ˜ μ ν , is studied, using a Markov Chain Monte Carlo (MCMC) analysis with the most updated catalog of SN-Ia.
Jorge Alfaro +2 more
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Life on Mars? The physiological perspective
Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
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International Astronomical Union Colloquium, 1989 Abstract.In this review I will concentrate on older remnants, by which I mean those in which radiative cooling is important somewhere and the swept up mass is sufficiently large for the details of the initial explosion not to matter. For such remnants it is the optical emission which is crucial since it allows us to deduce a great deal about the ...
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Revealing the True Nature of Hen 2-428
Galaxies, 2018 The nucleus of Hen 2-428 is a short orbital period (4.2 h) spectroscopic binary, whose status as potential supernovae type Ia progenitor has raised some controversy in the literature.
Nicole Reindl +7 more
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Interacting supernovae and supernova impostors: Evidence of incoming supernova explosions? [PDF]
AIP Conference Proceedings, 2015 Violent eruptions, and consequently major mass loss, are a common feature of the so–called Luminous Blue Variable (LBV) stars. During major eruptive episodes LBVs mimic the behavior of real type IIn supernovae (SNe), showing comparable radiated energy and similar spectroscopic properties.
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, 2006 Only a handful of supernovae can be studied with milliarcsecond resolution using the VLBI technique. However, such rare studies have permitted in various cases to estimate expansion decelerations and to obtain information on supernova ejecta and ...
J. M. Marcaide, A. Alberdi
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, 2019 From early Chinese astronomy to the most recent high precision, multi-wavelength observations, supernovae have been actively examined for centuries. In recent years, this intense study has yielded great insight into the physics of supernovae and their ...
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