Results 11 to 20 of about 7,335,139 (174)

Type Ib supernovae are bluer than Type Ic supernovae

Astronomy & Astrophysics
Type Ib and Ic supernovae (SNe Ib/Ic) are the bright finale of massive stars that have lost their hydrogen envelopes, making them powerful probes of mass stripping in massive star evolution.
Jin Harim, de Mink Selma E., Holzner Sebastian, Klencki Jakub, Csörnyei Géza, Yoon Sung-Chul, Arcavi Iair, Kerzendorf Wolfgang E.   +7 more
doaj   +2 more sources

Studying the Power Sources behind Type Ic Supernovae

The Astrophysical Journal
Astrophysical transients can be powered by a broad range of energy sources, including shock heating (internal and external shocks), decay of radioactive isotopes, and long-lived central engines (magnetar and fallback).
Annabelle E. Niblett, Daniel A. Fryer, Christopher L. Fryer   +2 more
doaj   +2 more sources

Magnetar Engines in Broad-lined Type Ic Supernovae and a Unified Picture for Magnetar-powered Stripped-envelope Supernovae

The Astrophysical Journal
We model the multiband lightcurves of 80 broad-lined Type Ic supernovae (SNe Ic-BL), including 11 associated with long-duration gamma-ray bursts (lGRBs), using a magnetar engine model with ^56 Ni decay. The data are all consistent with a magnetar engine,
Jin-Ping Zhu, Bing Zhang
doaj   +2 more sources

Discovery of a Relativistic Stripped-envelope Type Ic-BL Supernova at z = 2.83 with JWST [PDF]

The Astrophysical Journal Letters
We present James Webb Space Telescope (JWST) NIRCam and NIRSpec observations of a Type Ic supernova (SN Ic) and its host galaxy (JADES-GS+53.13533-27.81457) at z = 2.83. This SN (named SN 2023adta) was identified in deep JWST/NIRCam imaging from the JWST
M. R. Siebert, C. DeCoursey, D. A. Coulter, M. Engesser, J. D. R. Pierel, A. Rest, E. Egami, M. Shahbandeh, W. Chen, O. D. Fox, Y. Zenati, T. J. Moriya, A. J. Bunker, P. A. Cargile, M. Curti, D. J. Eisenstein, S. Gezari, S. Gomez, M. Guolo, B. D. Johnson, B. A. Joshi, M. Karmen, R. Maiolino, R. M. Quimby, B. Robertson, L. G. Strolger, F. Sun, Q. Wang, T. Wevers   +28 more
doaj   +2 more sources

Model Light Curves for Type Ib and Ic Supernovae [PDF]

, 2021
Using the Monte Carlo code SEDONA, multiband photometry and spectra are calculated for supernovae derived from stripped helium stars with presupernova masses of 2.2 to 10.0 M ⊙.
Kasen, DN, Woosley, SE, Sukhbold, Tuguldur, S. E. Woosley, Tuguldur Sukhbold, D. N. Kasen   +5 more
core   +1 more source

Proto-magnetar jets as central engines for broad-lined Type Ic supernovae [PDF]

, 2021
A subset of Type Ic supernovae (SNe Ic), broad-lined SNe Ic (SNe Ic-bl), show unusually high kinetic energies (∼1052 erg) that cannot be explained by the energy supplied by neutrinos alone. Many SNe Ic-bl have been observed in coincidence with long gamma-
Barnes, J., Kasen, D., Mösta, P., Duffell, P.C., Shankar, S., Swapnil Shankar, Paul C Duffell, Philipp Mösta, Jennifer Barnes, Daniel Kasen   +9 more
core   +1 more source

LPMO‐like Activity of Bioinspired Copper Complexes: From Model Substrate to Extended Polysaccharides

ChemCatChem, Volume 15, Issue 23, December 7, 2023., 2023
The catalytic activity of several LPMO‐bioinspired copper complexes was assayed on different substrates of increasing complexity (soluble to extended insoluble polysaccharides). The different assays are compared and proof‐of‐concept that bioinspired complexes can oxidatively promote polysaccharide depolymerization was obtained. Mechanistic pathways and
Rébecca Leblay, Rafael Delgadillo‐Ruíz, Christophe Decroos, Christelle Hureau, Marius Réglier, Ivan Castillo, Bruno Faure, A. Jalila Simaan   +7 more
wiley   +1 more source

Host Galaxies of Type Ic and Broad-lined Type Ic Supernovae from the Palomar Transient Factory: Implications for Jet Production [PDF]

, 2020
Unlike ordinary supernovae (SNe), some of which are hydrogen and helium deficient (called Type Ic SNe), broad-lined Type Ic SNe (SNe Ic-bl) are very energetic events, and only SNe Ic-bl are coincident with long-duration gamma-ray bursts (GRBs ...
Blagorodnova, Nadia, Kasliwal, Mansi, Zhen, Weikang, Modjaz, Maryam, Taggart, Kirsty, Siwek, Magdalena, Fierroz, David, Arcavi, Iair, Schulze, Steve, Bianco, Federica B., Huang, Shan, Gal-Yam, Avishay, Filippenko, Alexei, V, Cenko, Bradley S., Kulkarni, Shri, Perley, Daniel A., Liu, Yu-Qian   +16 more
core   +2 more sources

Explosion Parameters of SN 2013df and Properties of Its Progenitor Star [PDF]

, 2014
Type IIb supernovae have only recently been identified as a distinct flavor of core-collapse stellar explosions. These supernovae represent a transitional type between Type II and Type Ib supernovae.
Powell, Diana K., Powell, Diana K. (5267623)   +1 more
core   +1 more source

Type Ic supernovae from the (intermediate) Palomar Transient Factory

, 2021
Context. Type Ic supernovae represent the explosions of the most stripped massive stars, but their progenitors and explosion mechanisms remain unclear. Larger samples of observed supernovae can help characterize the population of these transients.
C. Fremling, Fremling, C., Karamehmetoglu, E., Wozniak, P., Yan, Lin, A. Gal-Yam, R. Laher, Taddia, Francesco,, E. Karamehmetoglu, F. Taddia, Laher, R., Gal-Yam, A., P. Wozniak, S. Schulze, Lin Yan, J. Sollerman, Barbarino, Cristina,, Sollerman, Jesper,, I. Arcavi, Arcavi, I., C. Barbarino, Schulze, S.   +21 more
core   +1 more source