Results 11 to 20 of about 900 (166)

On the Progenitors of Type Ia Supernovae [PDF]

Symposium - International Astronomical Union, 2002
Supersoft X-ray sources (hereafter SSS) are a class of luminous (bolometric luminosity ~ 1037 − 1038 erg s−1) objects with a characteristic radiation temperature of 30 to 60 eV (Hasinger 1994; Kahabka & Trümper 1996). The most popular model for SSS is that they are massive white dwarfs steadily burning nuclear fuel accreted from a more massive ...
X.-D. Li, E. P. J. van den Heuvel
openaire   +1 more source

Unprecedented Early Flux Excess in the Hybrid 02es-like Type Ia Supernova 2022ywc Indicates Interaction with Circumstellar Material

The Astrophysical Journal Letters, 2023
We present optical photometric and spectroscopic observations of the 02es-like type Ia supernova (SN) 2022ywc. The transient occurred in the outskirts of an elliptical host galaxy and showed a striking double-peaked light curve with an early excess ...
Shubham Srivastav, T. Moore, M. Nicholl, M. R. Magee, S. J. Smartt, M. D. Fulton, S. A. Sim, J. M. Pollin, L. Galbany, C. Inserra, A. Kozyreva, Takashi J. Moriya, F. P. Callan, X. Sheng, K. W. Smith, J. S. Sommer, J. P. Anderson, M. Deckers, M. Gromadzki, T. E. Müller-Bravo, G. Pignata, A. Rest, D. R. Young   +22 more
doaj   +1 more source

SPECTROSCOPY OF TYPE Ia SUPERNOVAE BY THE CARNEGIE SUPERNOVA PROJECT [PDF]

The Astrophysical Journal, 2013
43 pages, 23 figures, and 11 tables. Accepted for publication in ApJ on May 21, 2013.
Folatelli, Gastón, Morrell, Nidia, Phillips, Mark M., Hsiao, Eric, Campillay, Abdo, Contreras, Carlos, Castellón, Sergio, Hamuy Wackenhut, Mario, Krzeminski, Wojtek, Roth, Miguel, Stritzinger, Maximilian, Burns, Christopher R., Freedman, Wendy L., Madore, Barry F., Murphy, David, Persson, S. E., Prieto, José L., Suntzeff, Nicholas B., Krisciunas, Kevin, Anderson, Joseph P., Förster, Francisco, Maza Sancho, José, Pignata Libralato, Giuliano, Rojas, P. Andrea, Boldt, Luis, Salgado, Francisco, Wyatt, Pamela, Olivares E., Felipe, Gal Yam, Avishay, Sako, Masao   +29 more
openaire   +10 more sources

Could There Be a Hole in Type Ia Supernovae? [PDF]

The Astrophysical Journal, 2004
In the favored progenitor scenario, Type Ia supernovae arise from a white dwarf accreting material from a non-degenerate companion star. Soon after the white dwarf explodes, the ejected supernova material engulfs the companion star; two-dimensional hydrodynamical simulations by Marietta et. al.
Kasen, Daniel, Nugent, Peter, Thomas, R.C., Wang, Lifan   +3 more
openaire   +3 more sources

Axion-like Particles from Nearby Type Ia Supernovae [PDF]

EPJ Web of Conferences, 2022
Axion-like particles (ALPs) are a class of hypothetical pseudo-scalar particles and can be created in hot astrophysical plasma through the interaction between photons. I calculate the production of ALPs in type Ia supernovae.
Mori Kanji
doaj   +1 more source

THE AGES OF TYPE Ia SUPERNOVA PROGENITORS [PDF]

The Astronomical Journal, 2010
15 pages, 8 figures, 3 tables, AJ accepted.
Brandt, T.D., Tojeiro, R., Aubourg, E., Heavens, A., Jimenez, R., Strauss, M.A.   +5 more
openaire   +4 more sources

The Distant Type Ia Supernova Rate [PDF]

The Astrophysical Journal, 2002
40 pages and 7 figures. Accepted for publication in the Astrophysical Journal.
Pain, R., Fabbro, S., Sullivan, M., Ellis, R. S., Aldering, G., Astier, P., Duestua, S. E., Fruchter, A. S., Goldhaber, G., Goobar, A., Groom, D. E., Hardin, D., Hook, I. M., Howell, D. A., Irwin, M. J., Kim, A. G., Kim, M. Y., Knop, R. A., Lee, J. C., Lidman, C., Mcmahon, R. G., Nugent, P. E., Panagia, N., Pennypacker, C. R., Perlmutter, S., Ruiz-Lapuente, P., Schahmaneche, K., Schaefer, B., Walton, N. A.   +28 more
openaire   +6 more sources

Type Ia Supernovae [PDF]

Symposium - International Astronomical Union, 1992
Spectral calculations show that a model based on the thermonuclear explosion of a degenerate carbon/oxygen white dwarf provides excellent agreement with observations of Type Ia supernovae. Identification of suitable evolutionary progenitors remains a severe problem. General problems with estimation of supernova rates are outlined and the origin of Type
openaire   +1 more source

BURNING THERMALS IN TYPE Ia SUPERNOVAE [PDF]

The Astrophysical Journal, 2011
We develop a one-dimensional theoretical model for thermals burning in Type Ia supernovae based on the entrainment assumption of Morton, Taylor and Turner. Extensions of the standard model are required to account for the burning and for the expansion of the thermal due to changes in the background stratification found in the full star.
Aspden, Andrew, Bell, J., Dong, S., Woosley, S.   +3 more
openaire   +4 more sources

The Outermost Ejecta of Type Ia Supernovae [PDF]

The Astrophysical Journal, 2008
13 pages, 10 figures, Accepted for publication in The Astrophysical ...
Tanaka, Masaomi, Mazzali, Paolo, Benetti, Stefano, Nomoto, Ken’ichi, Elias-Rosa, Nancy, Kotak, Rubina, Pignata Libralato, Giuliano, Stanishev, Vallery, Hachinger, Stephan   +8 more
openaire   +6 more sources