Results 111 to 120 of about 31,180 (215)

ISEV2025 Abstract Book

open access: yes
Journal of Extracellular Vesicles, Volume 14, Issue S1, October 2025.
wiley   +1 more source

Discovery and Extensive Follow-up of SN 2024ggi, a Nearby Type IIP Supernova in NGC 3621

open access: yesThe Astrophysical Journal
We present the discovery and early observations of the nearby Type II supernova (SN) 2024ggi in NGC 3621 at 6.64 ± 0.3 Mpc. The SN was caught $5.{8}_{-2.9}^{+1.9}$ hr after its explosion by the ATLAS survey.
Ting-Wan Chen   +49 more
doaj   +1 more source

Strangeness in Compact Stars

open access: yes, 2010
We discuss the impact of strange hadrons, in particular hyperons, on the gross features of compact stars and on core-collapse supernovae. Hyperons are likely to be the first exotic species which appears around twice normal nuclear matter density in the ...
Aichelin   +57 more
core   +1 more source

Characterizing the Rapid Hydrogen Disappearance in SN 2022crv: Evidence of a Continuum between Type Ib and IIb Supernova Properties

open access: yesThe Astrophysical Journal
We present optical and near-infrared (NIR) observations of SN 2022crv, a stripped-envelope supernova in NGC 3054, discovered within 12 hr of explosion by the Distance Less Than 40 Mpc Survey.
Yize Dong   +54 more
doaj   +1 more source

The Cosmic Stellar Birth and Death Rates

open access: yes, 2006
The cosmic stellar birth rate can be measured by standard astronomical techniques. It can also be probed via the cosmic stellar death rate, though until recently, this was much less precise.
Ahn   +22 more
core   +2 more sources

Optical and Near-infrared Nebular-phase Spectroscopy of SN 2024ggi: Constraints on the Structure of the Inner Ejecta, Progenitor Mass, and Dust

open access: yesThe Astrophysical Journal
We present optical and near-infrared (NIR) spectroscopic observations of the nearby Type II supernova SN 2024ggi ranging from 250 to 581 days after the explosion.
Emilio Hueichapán   +9 more
doaj   +1 more source

Hubble Space Telescope Deep Upper Limits Rule out a Surviving Massive Binary Companion to the Type Ic Supernova 2012fh

open access: yesThe Astrophysical Journal
Current explanations of the mass-loss mechanism for stripped-envelope supernovae (SNe) remain divided between single and binary progenitor systems. Here we obtain deep ultraviolet (UV) imaging with the Hubble Space Telescope (HST) of the Type Ic SN ...
Benjamin F. Williams   +21 more
doaj   +1 more source

Explosive nucleosynthesis in core-collapse supernovae

open access: yes, 2010
The specific mechanism and astrophysical site for the production of half of the elements heavier than iron via rapid neutron capture (r-process) remains to be found.
Almudena Arcones   +28 more
core   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Contents

open access: yes
Meteoritics &Planetary Science, Volume 60, Issue S1, Page 2-29, August 2025.
wiley   +1 more source

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