Results 121 to 130 of about 727,921 (273)

Light Curves of Type IIP Supernovae from Neutrino-driven Explosions of Red Supergiants Obtained by a Semianalytic Approach

The Astrophysical Journal, 2023
Type IIP supernovae (SNe IIP) mark the explosive death of red supergiants (RSGs), evolved massive stars with an extended hydrogen envelope. They are the most common supernova type and allow for the benchmarking of supernova explosion models by ...
Shuai Zha, Bernhard Müller, Amy Weir, Alexander Heger   +3 more
doaj   +1 more source

A possible radio supernova in the outer part of NGC 3310 [PDF]

, 2004
As part of an on-going radio supernova monitoring program, we have discovered a variable, compact steep spectrum radio source ~65 arcsec (~4 kpc) from the centre of the starburst galaxy NGC 3310.
A. Pedlar, Cram, Duric, Gallimore, Hodge, Hummel, Kregel, Lorimer, M. K. Argo, M. Strong, Mattila, Montes, Mulder, O'Dea, Pedlar, R. J. Beswick, Roberts, Seielstad, T. W. B. Muxlow, Thomasson, van der Hulst, Vila, Weiler   +22 more
core   +1 more source

A Parameter Study of Type II Supernova Light Curves Using 6 M☉ He Cores [PDF]

, 2004
Results of numerical calculations of Type II supernova light curves are presented. The model progenitor stars have 6 M☉ cores and various envelopes, originating from a numerically evolved 20 M☉ star.
T. Young
semanticscholar   +1 more source

Positron annihilation spectroscopy of clumpy structures 1. Type II young Supernova remnants

Physical Sciences and Technology, 2018
The clumpy structure of the SN 1987A ejecta revealed by numerous IR observations has been described. The simulation of the clump formation in the progenitor star’s explosion was performed.
D.N. Doikov, S.M. Andrievsky, A.V. Yushchenko   +2 more
doaj  

Multi-Element Abundance Measurements from Medium-Resolution Spectra. IV. Alpha Element Distributions in Milky Way Dwarf Satellite Galaxies [PDF]

, 2010
We derive the star formation histories of eight dwarf spheroidal (dSph) Milky Way satellite galaxies from their alpha element abundance patterns. Nearly 3000 stars from our previously published catalog (Paper II) comprise our data set. The average [alpha/
Abia, Aparicio, Azzopardi, Battaglia, Bellazzini, Bernard, Bullock, Bullock, Buonanno, Burris, Caputo, Carrera, Chou, Cohen, Cohen, Coleman, Colucci, Dalcanton, Diemand, Dolphin, Edvardsson, Evan N. Kirby, Fenner, Frebel, Fulbright, Fulbright, Gallart, Gallart, Geha, Geisler, Gilmore, Gnedin, Graeme H. Smith, Gratton, Gratton, Gratton, Graves, Grebel, Grillmair, Hanson, Held, Held, Holtzman, Howell, Hurley-Keller, Irwin, Ivans, Iwamoto, Johnson, Johnston, Judith. G. Cohen, Kennicutt, Kinman, Kirby, Kirby, Kirby, Kirby, Kobayashi, Kobayashi, Koch, Kodama, Kroupa, Kuehn, Larson, Larson, Lee, Mac Low, Maeder, Majewski, Majewski, Majewski, Majewski, Maoz, Martin, Martin, Martínez-Delgado, Mateo, Matteucci, McWilliam, McWilliam, McWilliam, McWilliam, Mighell, Mighell, Miralda-Escudé, Mori, Mucciarelli, Muñoz, Muñoz, Napolitano, Nissen, Norris, Norris, Norris, Orban, Pagel, Pagel, Piatek, Piatek, Piatek, Pont, Prochaska, Puragra Guhathakurta, Ricotti, Robertson, Ryan, Sadakane, Sangmo Tony Sohn, Saviane, Shetrone, Shetrone, Shetrone, Shetrone, Simon, Smecker-Hane, Smecker-Hane, Smecker-Hane, Sohn, Stephens, Steven R. Majewski, Thornton, Timmes, Tinsley, Tolstoy, Tolstoy, Venn, Wechsler, Weisz, White, Winnick, Zucker   +130 more
core   +3 more sources

Circumstellar Interaction in the Ultraviolet Spectra of SN 2023ixf 14–66 Days After Explosion

The Astrophysical Journal Letters
SN 2023ixf was discovered in M101 within a day of the explosion and rapidly classified as a Type II supernova with flash features. Here we present ultraviolet (UV) spectra obtained with the Hubble Space Telescope 14, 19, 24, and 66 days after the ...
K. Azalee Bostroem, David J. Sand, Luc Dessart, Nathan Smith, Saurabh W. Jha, Stefano Valenti, Jennifer E. Andrews, Yize Dong, Alexei V. Filippenko, Sebastian Gomez, Daichi Hiramatsu, Emily T. Hoang, Griffin Hosseinzadeh, D. Andrew Howell, Jacob E. Jencson, Michael Lundquist, Curtis McCully, Darshana Mehta, Nicolas E. Meza-Retamal, Jeniveve Pearson, Aravind P. Ravi, Manisha Shrestha, Samuel Wyatt   +22 more
doaj   +1 more source

Acquire information about neutrino parameters by detecting supernova neutrinos

, 2010
We consider the supernova shock effects, the Mikheyev-Smirnov-Wolfenstein (MSW) effects, the collective effects, and the Earth matter effects in the detection of type II supernova neutrinos on the Earth.
Bing-Lin Young, C. Giunti, F. D. Stacey, G. G. Raffelt, H.-T. Janka, H.-T. Janka, H.-T. Janka, J. R. Wilson, L. D. Landau, Ming-Yang Huang, R. N. Mohapatra, S. L. Shapiro, S. P. Mikheyev, S. P. Mikheyev, S. P. Mikheyev, S. P. Mikheyev, S. P. Mikheyev, Xin-Heng Guo   +17 more
core   +1 more source

Flash ionization of the partially ionized wind of the progenitor of SN 1987A [PDF]

, 1998
The H II region created by the progenitor of SN 1987A was further heated and ionized by the supernova flash. Prior to the flash, the temperature of the gas was 4000 - 5000 K, and helium was neutral, while the post-flash temperature was only slightly less
Beuermann K., Hasinger G., Imshennik V., Peter Lundqvist, Rousseau J., Savage B. D.   +5 more
core   +3 more sources

Detection of a close supernova gravitational wave burst in a network of interferometers, neutrino and optical detectors

, 2003
Trying to detect the gravitational wave (GW) signal emitted by a type II supernova is a main challenge for the GW community. Indeed, the corresponding waveform is not accurately modeled as the supernova physics is very complex; in addition, all the ...
Anderson, Anderson, Arnaud, Arnaud, Arnaud, Arnaud, Arnaud, Arnaud, Baryshev, Beacom, Beacom, Boger, Bonazzola, Bonnel, Burrows, Cappellaro, Creighton, Cuoco, Cuoco, Dimmelmeier, Dimmelmeier, Edward K. Porter, Fabien Cavalier, Ferrari, Finn, Fukuda, Helstrom, Lobashev, Marie-Anne Bizouard, Matteo Barsuglia, Michel Davier, Mohanty, Mönchneyer, Nakano, Nazin, Nicolas Arnaud, Owen, Pai, Panagia, Patrice Hello, Pradier, Press, Searle, Searle, Spergel, Stark, Stephane Kreckelbergh, Sylvestre, Sylvestre, Teukolsky, Thorne, Tully, Viceré, Violette Brisson, Wainstein, Weinheimer, Yamada, Zwerger   +57 more
core   +2 more sources

SN 1996cr: Confirmation of a Luminous Type IIn Supernova in the Circinus Galaxy [PDF]

, 2007
We have recently confirmed SN 1996cr as a late-time type IIn supernova (SN) via VLT spectroscopy and isolated its explosion date to ~1 yr using archival optical imaging.
F. E. Bauer, K. W. Weiler, Kurt Weiler, S. Immler, S. Smartt, Stefan Immler, W. N. Brandt   +6 more
core   +1 more source