Results 131 to 140 of about 8,434 (211)

Carbonaceous dust grains seen in the first billion years of cosmic time. [PDF]

Nature, 2023
Witstok J, Shivaei I, Smit R, Maiolino R, Carniani S, Curtis-Lake E, Ferruit P, Arribas S, Bunker AJ, Cameron AJ, Charlot S, Chevallard J, Curti M, de Graaff A, D'Eugenio F, Giardino G, Looser TJ, Rawle T, Rodríguez Del Pino B, Willott C, Alberts S, Baker WM, Boyett K, Egami E, Eisenstein DJ, Endsley R, Hainline KN, Ji Z, Johnson BD, Kumari N, Lyu J, Nelson E, Perna M, Rieke M, Robertson BE, Sandles L, Saxena A, Scholtz J, Sun F, Tacchella S, Williams CC, Willmer CNA.   +41 more
europepmc   +1 more source

Type Ib/c supernovae observations with VLBI [PDF]

Proceedings of ISKAF2010 Science Meeting — PoS(ISKAF2010), 2010
Zsolt Paragi, Alexander van der Horst, Chryssa Kouveliotou, Jonathan Granot, Enrico Ramirez-Ruiz, Greg B. Taylor   +5 more
openaire   +1 more source

SN 2022ngb: A faint, slowly evolving Type IIb supernova with a low-mass envelope

Astronomy & Astrophysics
Context. Type IIb supernovae (SNe IIb) are stellar explosions whose spectra reveal transitional features between hydrogen-rich (Type II) and helium-rich (Type Ib) SNe.
Zhao J.-W., Benetti S., Cai Y.-Z., Pastorello A., Elias-Rosa N., Reguitti A., Valerin G., Wang Z.-Y., Cappellaro E., Feng G.-F., Fiore A., Fitzpatrick B., Fraser M., Isern J., Kankare E., Kravtsov T., Kumar B., Lundqvist P., Matilainen K., Mattila S., Mazzali P. A., Moran S., Ochner P., Peng Z.-H., Reynolds T. M., Salmaso I., Srivastav S., Stritzinger M. D., Taubenberger S., Tomasella L., Vinkó J., Wheeler J. C., Williams S., Pei S.-P., Yang Y.-J., Liu X.-K., Liu X.-W., Yang Y.-P.   +37 more
doaj   +1 more source

Supernova 1987K - Type II in youth, type Ib in old age

The Astronomical Journal, 1988
Spectra of SN 1987K in NGC 4651 have been obtained 0-2 weeks past maximum brightness and 5-7 weeks past maximum. The results suggest that SNe II and at least some SNe Ib are closely related objects, and that SN 1987A could have been a massive star which lost a majority of its hydrogen prior to exploding.
openaire   +1 more source

From Supernova to Remnant: Tracking the Evolution of the Oldest Known X-Ray Supernovae. [PDF]

Astrophys J, 2020
Ramakrishnan V, Dwarkadas VV.
europepmc   +1 more source

Visual Orbits of Wolf–Rayet Stars. I. The Orbit of the Dust-producing Wolf–Rayet Binary WR 137 Measured with the CHARA Array

The Astrophysical Journal
Classical Wolf–Rayet (W-R) stars are the descendants of massive OB stars that have lost their hydrogen envelopes and are burning helium in their cores prior to exploding as Type Ib/c supernovae.
Noel D. Richardson, Gail H. Schaefer, Jan J. Eldridge, Rebecca Spejcher, Amanda Holdsworth, Ryan M. Lau, John D. Monnier, Anthony F. J. Moffat, Gerd Weigelt, Peredur M. Williams, Stefan Kraus, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Sorabh Chhabra, Isabelle Codron, Jacob Ennis, Tyler Gardner, Mayra Gutierrez, Noura Ibrahim, Aaron Labdon, Cyprien Lanthermann, Benjamin R. Setterholm   +21 more
doaj   +1 more source

Fast Transients from Magnetic Disks around Nonspinning Collapsar Black Holes

The Astrophysical Journal Letters
Most black holes (BHs) formed in collapsing stars have low spin, though some are expected to acquire a magnetic accretion disk during the collapse. While such BH disks can launch magnetically driven winds, their physics and observational signatures have ...
Justin Bopp, Ore Gottlieb
doaj   +1 more source

Massive Star Mass-Loss Revealed by X-ray Observations of Young Supernovae. [PDF]

Proc Int Astron Union, 2018
Dwarkadas VV.
europepmc   +1 more source

Spectropolarimetry of stripped-envelope supernovae: observations and modelling. [PDF]

Philos Trans A Math Phys Eng Sci, 2017
Tanaka M.
europepmc   +1 more source

The direct identification of core-collapse supernova progenitors. [PDF]

Philos Trans A Math Phys Eng Sci, 2017
Van Dyk SD.
europepmc   +1 more source