Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Truran, James W."'
Sub-Chandrasekhar CO white dwarfs accreting helium have been considered as candidates for Type Ia supernova(SNIa) progenitors since the early 1980s (helium shell mass $> 0.1 M_\odot $). These models, once detonated did not fit the observed spectra an
Externí odkaz:
http://arxiv.org/abs/1803.00941
After off-center C ignition in the cores of super-AGB stars the C flame propagates all the way down to the center, trailing behind it the C-shell convective zone, and thus building a degenerate ONe core. This standard picture is obtained in stellar e
Externí odkaz:
http://arxiv.org/abs/1305.2649
Autor:
Denissenkov, Pavel A., Truran, James W., Pignatari, Marco, Trappitsch, Reto, Ritter, Christian, Herwig, Falk, Battino, Umberto, Setoodehnia, Kiana, Paxton, B.
Classical novae are the result of thermonuclear flashes of hydrogen accreted by CO or ONe white dwarfs, leading eventually to the dynamic ejection of the surface layers. These are observationally known to be enriched in heavy elements, such as C, O a
Externí odkaz:
http://arxiv.org/abs/1303.6265
Classical novae are the results of surface thermonuclear explosions of H-rich material accreted by white dwarfs (WDs) from their low-mass main-sequence or red-giant binary companions. Chemical composition analysis of their ejecta shows that nova outb
Externí odkaz:
http://arxiv.org/abs/1210.7776
We present here, for the first time, a 2D study of the overshoot convective mechanism in nova outbursts for a wide range of possible compositions of the layer underlying the accreted envelope. Previous surveys studied this mechanism only for solar co
Externí odkaz:
http://arxiv.org/abs/1111.6777
Autor:
Wang, Xiaofeng, Wang, Lifan, Filippenko, Alexei V., Baron, Eddie, Kromer, Markus, Jack, Dennis, Zhang, Tianmeng, Aldering, Greg, Antilogus, Pierre, Arnett, David, Baade, Dietrich, Barris, Brian J., Benetti, Stefano, Bouchet, Patrice, Burrows, Adam S., Canal, Ramon, Cappellaro, Enrico, Carlberg, Raymond, di Carlo, Elisa, Challis, Peter, Crotts, Arlin, Danziger, John I., Della Valle, Massimo, Fink, Michael, Foley, Ryan J., Fransson, Claes, Gal-Yam, Avishay, Garnavich, Peter, Gerardy, Chris L., Goldhaber, Gerson, Hamuy, Mario, Hillebrandt, Wolfgang, Hoeflich, Peter A., Holland, Stephen T., Holz, Daniel E., Hughes, John P., Jeffery, David J., Jha, Saurabh W., Kasen, Dan, Khokhlov, Alexei M., Kirshner, Robert P., Knop, Robert, Kozma, Cecilia, Krisciunas, Kevin, Lee, Brian C., Leibundgut, Bruno, Lentz, Eric J., Leonard, Douglas C., Lewin, Walter H. G., Li, Weidong, Livio, Mario, Lundqvist, Peter, Maoz, Dan, Matheson, Thomas, Mazzali, Paolo, Meikle, Peter, Miknaitis, Gajus, Milne, Peter, Mochnacki, Stefan, Nomoto, Ken'Ichi, Nugent, Peter E., Oran, Elaine, Panagia, Nino, Perlmutter, Saul, Phillips, Mark M., Pinto, Philip, Poznanski, Dovi, Pritchet, Christopher J., Reinecke, Martin, Riess, Adam, Ruiz-Lapuente, Pilar, Scalzo, Richard, Schlegel, Eric M., Schmidt, Brian, Siegrist, James, Soderberg, Alicia M., Sollerman, Jesper, Sonneborn, George, Spadafora, Anthony, Spyromilio, Jason, Sramek, Richard A., Starrfield, Sumner G., Strolger, Louis G., Suntzeff, Nicholas B., Thomas, Rollin, Tonry, John L., Tornambe, Amedeo, Truran, James W., Turatto, Massimo, Turner, Michael, Van Dyk, Schuyler D., Weiler, Kurt, Wheeler, J. Craig, Wood-Vasey, Michael, Woosley, Stan, Yamaoka, Hitoshi
Publikováno v:
Astrophys.J.749:126-142,2012
We present ultraviolet (UV) spectroscopy and photometry of four Type Ia supernovae (SNe 2004dt, 2004ef, 2005M, and 2005cf) obtained with the UV prism of the Advanced Camera for Surveys on the Hubble Space Telescope. This dataset provides unique spect
Externí odkaz:
http://arxiv.org/abs/1110.5809
The origin of the iron-group elements titanium to zinc in nature is understood to occur under explosive burning conditions in both Type Ia (thermonuclear) and Type II (core collapse) supernovae. In these dynamic environments, the most abundant produc
Externí odkaz:
http://arxiv.org/abs/1107.1278
Most of the leading explosion scenarios for Type Ia supernovae involve the nuclear incineration of a white dwarf star through a detonation wave. Several scenarios have been proposed as to how this detonation may actually occur, but the exact mechanis
Externí odkaz:
http://arxiv.org/abs/1103.3062
Autor:
Waldman, Roni, Sauer, Daniel, Livne, Eli, Perets, Hagai, Glasner, Ami, Mazzali, Paolo, Truran, James W., Gal-Yam, Avishay
Recently several type Ib supernovae (SNe; with the prototypical SN 2005E) have been shown to have atypical properties. These SNe are faint (absolute peak magnitude of ~ -15) and fast SNe that show unique composition. They are inferred to have low eje
Externí odkaz:
http://arxiv.org/abs/1009.3829
Publikováno v:
Astrophys.J.700:642-653,2009
We study the initiation of the detonation in the gravitationally confined detonation (GCD) model of Type Ia supernovae (SNe Ia). Initiation of the detonation occurs spontaneously in a region where the length scale of the temperature gradient extendin
Externí odkaz:
http://arxiv.org/abs/0905.3104