Results 11 to 20 of about 823 (184)

Type Ia supernovae [PDF]

Journal of Physics: Conference Series, 2007
At its heart, a Type Ia supernova is a problem in turbulent nuclear combustion. There are four sub-problems, each of which has eluded solution for decades, but which can be addressed by large scale simulation. First is the ignition – where and how often the burning is ignited in the convective core of an exploding white dwarf star.
Woosley, S., Almgren, A., Bell, J., Glatzmaier, G., Kasen, D., Kerstein, A., Ma, H., Nugent, P., Röpke, F., Sankaran, V., Zingale, M.   +10 more
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Carnegie Supernova Project: Classification of Type Ia Supernovae [PDF]

The Astrophysical Journal, 2020
Abstract We use the spectroscopy and homogeneous photometry of 97 Type Ia supernovae (SNe Ia) obtained by the Carnegie Supernova Project as well as a subset of 36 SNe Ia presented by Zheng et al. to examine maximum-light correlations in a four-dimensional (4D) parameter space: B-band absolute magnitude, M
Anthony Burrow, E. Baron, Chris Ashall, Christopher R. Burns, N. Morrell, Maximilian D. Stritzinger, Peter J. Brown, G. Folatelli, Wendy L. Freedman, Lluís Galbany, P. Hoeflich, Eric Y. Hsiao, Kevin Krisciunas, M. M. Phillips, Anthony L. Piro, Nicholas B. Suntzeff, Syed Uddin   +16 more
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Nucleosynthesis in type Ia supernovae [PDF]

Nuclear Physics A, 1997
Among the major uncertainties involved in the Chandrasekhar mass models for Type Ia supernovae are the companion star of the accreting white dwarf (or the accretion rate that determines the carbon ignition density) and the flame speed after ignition. We present nucleosynthesis results from relatively slow deflagration (1.5 - 3 % of the sound speed) to ...
Nomoto, K., Iwamoto, K., Nakasato, N., Thielemann, F. -K., Brachwitz, F., Tsujimoto, T., Kubo, Y., Kishimoto, N.   +7 more
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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
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TYPE Ia SUPERNOVA CARBON FOOTPRINTS [PDF]

The Astrophysical Journal, 2011
We present convincing evidence of unburned carbon at photospheric velocities in new observations of 5 Type Ia supernovae (SNe Ia) obtained by the Nearby Supernova Factory. These SNe are identified by examining 346 spectra from 124 SNe obtained before +2.5 d relative to maximum.
Thomas, R. C., Aldering, G., Antilogus, P., Aragon, C., Bailey, S., Baltay, C., Bongard, S., Buton, C., Canto, A., Childress, M., Chotard, N., Copin, Y., Fakhouri, H. K., Gangler, E., Hsiao, E. Y., Kerschhaggl, M., Kowalski, M., Loken, S., Nugent, P., Paech, K., Pain, R., Pecontal, E., Pereira, R., Perlmutter, S., Rabinowitz, D., Rigault, M., Rubin, D., Runge, K., Scalzo, R., Smadja, G., Tao, C., Weaver, B. A., Wu, C., Brown, P. J., Milne, P. A.   +34 more
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Type Ia Supernova Cosmology [PDF]

Space Science Reviews, 2018
The primary agent for Type Ia supernova cosmology is the uniformity of their appearance. We present the current status, achievements and uncertainties. The Hubble constant and the expansion history of the universe are key measurements provided by Type Ia supernovae.
B. Leibundgut, M. Sullivan
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Type Ia Supernova Light Curves [PDF]

The Astrophysical Journal, 2007
18 pages, submitted to ApJ on 8/18 ...
Woosley, S., Kasen, D., Blinnikov, S., Sorokina, E.   +3 more
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DEFINING PHOTOMETRIC PECULIAR TYPE Ia SUPERNOVAE [PDF]

The Astrophysical Journal, 2014
We present a new photometric identification technique for SN 1991bg-like type Ia supernovae (SNe Ia), i.e. objects with light-curve characteristics such as later primary maxima and absence of secondary peak in redder filters. This method is capable of selecting out this sub-group from the normal type Ia population.
S. González-Gaitán, E. Y. Hsiao, G. Pignata, F. Förster, C. P. Gutiérrez, F. Bufano, L. Galbany, G. Folatelli, M. M. Phillips, M. Hamuy, J. P. Anderson, T. de Jaeger   +11 more
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Type Ia Supernova models: Latest developments [PDF]

Astrophysics and Space Science, 2004
16 pages, 7 figures; invited talk at the JENAM-2002 meeting (Porto, Portugal, September, 3-8); minor ...
Blinnikov, S., Sorokina, E.
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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
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