Results 11 to 20 of about 77,144 (213)

Discovery of a supernova explosion at half the age of the Universe [PDF]

Nature, 1997
The ultimate fate of the Universe, infinite expansion or a big crunch, can be determined by using the redshifts and distances of very distant supernovae to monitor changes in the expansion rate.
S. Perlmutter, G. Aldering, M. Valle, S. Deustua, R. Ellis, S. Fabbro, A. Fruchter, G. Goldhaber, A. Goobar, D. Groom, I. Hook, A. Kim, M. Kim, R. Knop, C. Lidman, R. McMahon, P. Nugent, R. Pain, N. Panagia, C. Pennypacker, P. Ruiz-Lapuente, B. Schaefer, N. Walton   +22 more
semanticscholar   +1 more source

Supernova triggers for end-Devonian extinctions [PDF]

Proceedings of the National Academy of Sciences of the United States of America, 2020
The Late Devonian was a protracted period of low speciation resulting in biodiversity decline, culminating in extinction events near the Devonian–Carboniferous boundary.
B. Fields, A. Melott, J. Ellis, Adrienne F. Ertel, Brian J. Fry, B. Lieberman, Zhenghai Liu, Jesse A. Miller, B. Thomas   +8 more
semanticscholar   +1 more source

Analyzing the Time Spectrum of Supernova Neutrinos to Constrain Their Effective Mass or Lorentz Invariance Violation

Universe, 2023
We analyze the expected arrival time spectrum of supernova neutrinos using simulated luminosity and compute the expected number of events in future detectors such as the DUNE Far Detector and Hyper-Kamiokande.
Celio A. Moura, Lucas Quintino, Fernando Rossi-Torres   +2 more
doaj   +1 more source

The Supernova – Supernova Remnant Connection [PDF]

, 2016
Many aspects of the progenitor systems, environments, and explosion dynamics of the various subtypes of supernovae are difficult to investigate at extragalactic distances where they are observed as unresolved sources. Alternatively, young supernova remnants in our own galaxy and in the Large and Small Magellanic Clouds offer opportunities to resolve ...
Milisavljevic, Dan, Fesen, Robert A.
openaire   +2 more sources

Properties and Composition of Magnetized Nuclei

Particles, 2020
The properties and mass distribution of the ultramagnetized atomic nuclei which arise in heavy-ion collisions and magnetar crusts, during Type II supernova explosions and neutron star mergers are analyzed.
V.N. Kondratyev
doaj   +1 more source

A persistent influence of supernovae on biodiversity over the Phanerozoic

Ecology and Evolution, 2023
It is an open question what has constrained macroevolutionary changes in marine animal diversity on the time scale of the Phanerozoic. Here, we will show that supernovae appear to have significantly influenced the biodiversity of life.
Henrik Svensmark
doaj   +1 more source

Supernovae Detection with Fully Convolutional One-Stage Framework

Sensors, 2021
A series of sky surveys were launched in search of supernovae and generated a tremendous amount of data, which pushed astronomy into a new era of big data.
Kai Yin, Juncheng Jia, Xing Gao, Tianrui Sun, Zhengyin Zhou   +4 more
doaj   +1 more source

The fast, luminous ultraviolet transient AT2018cow: extreme supernova, or disruption of a star by an intermediate-mass black hole? [PDF]

Monthly notices of the Royal Astronomical Society, 2018
Wide-field optical surveys have begun to uncover large samples of fast (t_rise 10 days. The spectrum remains extremely hot throughout its evolution, and the photospheric radius contracts with time (receding below ...
D. Perley, P. Mazzali, Lin Yan, S. Cenko, S. Gezari, Kirsty Taggart, N. Blagorodnova, C. Fremling, B. Mockler, Avinash Singh, N. Tominaga, Masaomi Tanaka, A. Watson, T. Ahumada, G. Anupama, C. Ashall, R. L. Becerra, D. Bersier, V. Bhalerao, J. Bloom, N. Butler, C. Copperwheat, M. Coughlin, K. De, A. Drake, D. Duev, S. Frederick, J. Gonz'alez, A. Goobar, M. Heida, A. Ho, J. Horst, T. Hung, R. Itoh, J. Jencson, M. Kasliwal, N. Kawai, S. Kulkarni, B. Kumar, H. Kumar, A. Kutyrev, T. Khanam, William H. Lee, K. Maeda, A. Mahabal, K. Murata, J. Neill, C. Ngeow, B. Penprase, E. Pian, R. Quimby, E. Ramirez-Ruiz, M. Richer, C. Rom'an-Z'uniga, S. Srivastava, Q. Socia, J. Sollerman, Y. Tachibana, F. Taddia, S. Tinyanont, E. Troja, C. Ward, Jerrick Wee   +62 more
semanticscholar   +1 more source

R-Process with Magnetized Nuclei at Dynamo-Explosive Supernovae and Neutron Star Mergers

Universe, 2021
Nucleosynthesis at latge magnetic induction levels relevant to core-collapse supernovae and neutron star mergers is considered. For respective magnetic fields of a strength up to ten teratesla, atomic nuclei exhibit a linear magnetic response due to the ...
Vladimir N. Kondratyev
doaj   +1 more source

THE HUBBLE SPACE TELESCOPE CLUSTER SUPERNOVA SURVEY. V. IMPROVING THE DARK-ENERGY CONSTRAINTS ABOVE z > 1 AND BUILDING AN EARLY-TYPE-HOSTED SUPERNOVA SAMPLE [PDF]

, 2011
We present Advanced Camera for Surveys, NICMOS, and Keck adaptive-optics-assisted photometry of 20 Type Ia supernovae (SNe Ia) from the Hubble Space Telescope (HST) Cluster Supernova Survey. The SNe Ia were discovered over the redshift interval 0.623 < z
N. Suzuki, N. Suzuki, David Rubin, David Rubin, C. Lidman, G. Aldering, R. Amanullah, K. Barbary, K. Barbary, L. Barrientos, J. Botyánszki, M. Brodwin, N. Connolly, K. Dawson, A. Dey, M. Doi, M. Donahue, S. Deustua, P. Eisenhardt, E. Ellingson, L. Faccioli, L. Faccioli, V. Fadeyev, H. Fakhouri, H. Fakhouri, A. Fruchter, D. Gilbank, M. Gladders, G. Goldhaber, G. Goldhaber, Anthony H. Gonzalez, A. Goobar, A. Gude, A. Gude, T. Hattori, H. Hoekstra, E. Hsiao, E. Hsiao, X. Huang, X. Huang, Y. Ihara, M. J. Jee, David E. Johnston, David E. Johnston, N. Kashikawa, Benjamin P. Koester, K. Konishi, M. Kowalski, Eric V. Linder, Eric V. Linder, L. Lubin, J. Melbourne, J. Meyers, J. Meyers, T. Morokuma, F. Munshi, F. Munshi, C. Mullis, Takeshi Oda, N. Panagia, S. Perlmutter, S. Perlmutter, M. Postman, T. Pritchard, T. Pritchard, J. Rhodes, P. Ripoche, P. Ripoche, P. Rosati, D. Schlegel, A. Spadafora, S. Stanford, S. Stanford, V. Stanishev, V. Stanishev, D. Stern, M. Strovink, M. Strovink, N. Takanashi, K. Tokita, M. Wagner, L. Wang, N. Yasuda, H. Yee   +83 more
semanticscholar   +1 more source