Results 61 to 70 of about 140,146 (287)

Spectropolarimetry of Supernovae

, 2008
Overwhelming evidence has accumulated in recent years that supernova explosions are intrinsically 3-dimensional phenomena with significant departures from spherical symmetry.
Chandrasekhar S, Chugai NN, Clocchiatti A, Doroshenko VT, Höflich P, J. Craig Wheeler, Jha S, Khokhlov AM, Leonard DC, Lifan Wang, Schlegel EM, Schwarz HE, Shakhovskoi NM, Shakhovskoi NM, Simmons JFL, Spyromilio J, van de Hulst HC, Wang L, Wheeler JC   +18 more
core   +1 more source

Are Ti44-Producing Supernovae Exceptional? [PDF]

, 2006
According to standard models supernovae produce radioactive $^{44}$Ti, which should be visible in gamma-rays following decay to $^{44}$Ca for a few centuries.
A. F. Iyudin, Ahmad, B. S. Meyer, Badenes, Bahcall, Benetti, Branch, Burrows, Burrows, Calzetti, Cappellaro, Clayton, Clayton, Clayton, Clayton, Clayton, Clayton, Clayton, D. D. Clayton, D. H. Hartmann, Dahlén, Dawson, de Vaucouleurs, Deneault, Diehl, Drimmel, Dupraz, Dwek, Elmegreen, Fransson, Fryer, Gaensler, Gehrels, Guesten, Görres, Hakkila, Hartmann, Hashimoto, Hatano, Heger, Henry, Higdon, Hoffman, Hoppe, Hwang, Hwang, Ibata, Iyudin, Iyudin, Iyudin, Iyudin, Kennicutt, Knödlseder, L.-S. The, Leising, Leising, Leising, Livne, M. D. Leising, Maeda, Maeder, Mahoney, Mardia, McKee, McKee, Mendez, Mochizuki, Mochizuki, Motizuki, Müller, Nagataki, Nittler, Nittler, Nomoto, Nomoto, Norman, Prantzos, Pruet, R. Diehl, Rauscher, Reed, Rothschild, Rudnick, Scalo, Scoville, Smith, Sonzogni, Talbot, Tammann, Taylor, The, The, Thielemann, Thielemann, Thielemann, Timmes, Timmes, Timmes, Timmes, Tsujimoto, Tsunemi, Turner, V. Schönfelder, van den Bergh, van den Bergh, van den Bergh, Vink, Vink, Vink, Weidenspointner, Woosley, Woosley, Woosley, Woosley, Woosley, Woosley, Y. Motizuki, Yamada, Yoshii, Zinner   +119 more
core   +3 more sources

Cosmology from supernova magnification maps

, 2005
High-z Type Ia supernovae are expected to be gravitationally lensed by the foreground distribution of large-scale structure. The resulting magnification of supernovae is statistically measurable, and the angular correlation of the magnification pattern ...
Asantha Cooray, Daniel E. Holz, Dragan Huterer, Frieman J. A.   +3 more
core   +1 more source

Upper limits on bolometric luminosities of ten type Ia supernova progenitors from Chandra observations [PDF]

, 2012
We present an analysis of Chandra observations of the position of ten nearby (< 25 Mpc) type Ia supernovae, taken before the explosions. No sources corresponding to progenitors were found in any of the observations.
Borkowski, Butler, Di, Di, Dickey, Drake, Elias-Rosa, Elias-Rosa, Filippenko, G. Nelemans, Gehrels, Gerardy, Gilfanov, Greiner, Güver, Hachisu, Harutyunyan, Henze, Henze, Hillebrandt, Iben, Immler, Itagaki, Itagaki, Kahabka, Kotak, Larionov, Larionov, Liu, Lorén-Aguilar, M. T. B. Nielsen, Mannucci, Meikle, Monard, Monard, Moore, Naito, Nelemans, Nielsen, Nomoto, Nugent, Orio, Pakmor, Patat, Perlmutter, Philips, Philips, Pignata, Quimby, R. Voss, Riess, Roelofs, Salvo, Schaefer, Schweizer, Shappee, Smartt, Sternberg, Stritzinger, Suzuki, Tutokov, van den Heuvel, van Kerkwijk, Voss, Voss, Wang, Wang, Webbink, Whelan, Yoon, Zhang   +70 more
core   +3 more sources

The Deepest Supernova Search is Realized in the Hubble Ultra Deep Field Survey

, 2005
The Hubble Ultra Deep Field Survey has not only provided the deepest optical and near infrared views of universe, but has enabled a search for the most distant supernovae to z~2.2.
Abdul-Aziz H., Adam G. Riess, Cappellaro E., Dahlen T., Hardin D., Louis-Gregory Strolger   +5 more
core   +2 more sources

Absolute Magnitude Distribution And Light Curves Of Gamma-Ray Burst Supernovae [PDF]

, 2008
Photometry data were collected from the literature and analyzed for supernovae that are thought to have a gamma-ray burst association. There are several gamma-ray burst afterglow light curves that appear to have a supernova component.
Bloom, Dean Richardson, Foley, Fruchter, Greiner, Jeffery, Kay, Nomoto, Richardson, Soffitta   +9 more
core   +3 more sources

Impact of Newly Measured Nuclear Reaction Rates on ²⁶Al Ejected Yields from Massive Stars

Universe
Over the last three years, the rates of all the main nuclear reactions involving the destruction and production of 26Al in stars (26Al(n, p)26Mg, 26Al(n, α)23Na, 26Al(p, γ)27Si and 25Mg(p, γ)26Al) have been re-evaluated thanks to new high-precision ...
Umberto Battino, Lorenzo Roberti, Thomas V. Lawson, Alison M. Laird, Lewis Todd   +4 more
doaj   +1 more source

Type Ic core-collapse supernova explosions evolved from very massive stars [PDF]

, 2013
We investigate the possibility of a super-luminous Type Ic core-collapse supernovae producing a large amount of 56Ni. Very massive stars with a main-sequence mass larger than 100 Msun and a metallicity 0.001 < Z < 0.004 are expected to explode as super ...
Okita, Shinpei, Umeda, Hideyuki, Yoshida, Takashi   +2 more
core   +2 more sources

Physics of Core-Collapse Supernovae in Three Dimensions: a Sneak Preview [PDF]

, 2016
Nonspherical mass motions are a generic feature of core-collapse supernovae, and hydrodynamic instabilities play a crucial role in the explosion mechanism.
H. Janka, T. Melson, A. S. M. Astrophysics, Garching, Physik Dept., Tum   +5 more
semanticscholar   +1 more source

Observational Predictions for Sub-Chandrasekhar Mass Explosions: Further Evidence for Multiple Progenitor Systems for Type Ia Supernovae [PDF]

Astrophysical Journal, 2018
We present a numerical parameter survey of sub-Chandrasekhar mass white dwarf (WD) explosions. Carbon–oxygen WDs accreting a helium shell have the potential to explode in the sub-Chandrasekhar mass regime.
A. Polin, P. Nugent, D. Kasen
semanticscholar   +1 more source