Results 11 to 20 of about 11,937,910 (228)

The rise-time of Type II supernovae [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
We investigate the early-time light-curves of a large sample of 223 type II supernovae (SNe) from the Sloan Digital Sky Survey and the Supernova Legacy Survey. Having a cadence of a few days and sufficient non-detections prior to explosion, we constrain rise-times, i.e.
González Gaitán, Santiago, Tominaga, N., Molina, J., Galbany, Lluis, Bufano, Filomena, Anderson, Joseph P., Gutierrez, C., Förster, F., Pignata Libralato, Giuliano, Bersten, Melina, Howell, D. A., Sullivan, M., Carlberg, R., De Jaeger, Thomas, Hamuy Wackenhut, Mario, Baklanov, P. V., Blinnikov, S. I.   +16 more
core   +15 more sources

Nucleosynthesis in type II supernovae [PDF]

Nuclear Physics A, 1997
1 Page Latex source, 10 PostScript figures, to appear in Nuclear Physics A, Vol. A616 (1997)
K. Nomoto, M. Hashimoto, T. Tsujimoto, F.-K. Thielemann, N. Kishimoto, Y. Kubo, N. Nakasato   +6 more
openaire   +2 more sources

A sample of Type II-L supernovae [PDF]

Monthly Notices of the Royal Astronomical Society, 2014
MNRAS in ...
Faran, T., Poznanski, D., Filippenko, A. V., Chornock, R., Foley, R. J., Ganeshalingam, M., Leonard, D. C., Li, W., Modjaz, M., Serduke, F. J. D., Silverman, J. M.   +10 more
openaire   +2 more sources

HYDRODYNAMICAL MODELS OF TYPE II PLATEAU SUPERNOVAE [PDF]

The Astrophysical Journal, 2011
We present bolometric light curves of Type II-plateau supernovae (SNe II-P) obtained using a newly developed, one-dimensional Lagrangian hydrodynamic code with flux-limited radiation diffusion. Using our code we calculate the bolometric light curve and photospheric velocities of SN1999em obtaining a remarkably good agreement with observations despite ...
Bersten, Melina Cecilia, Benvenuto, Omar Gustavo, Hamuy, Mario   +2 more
openaire   +6 more sources

The iron yield of normal Type II supernovae [PDF]

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT We present 56Ni mass estimates for 110 normal Type II supernovae (SNe II), computed here from their luminosity in the radioactive tail. This sample consists of SNe from the literature, with at least three photometric measurements in a single optical band within 95–320 d since explosion.
Ó Rodríguez, N Meza, J Pineda-García, M Ramirez   +3 more
openaire   +2 more sources

DUST AND THE TYPE II-PLATEAU SUPERNOVA 2004dj [PDF]

The Astrophysical Journal, 2011
ApJ in press; minor changes c.f ...
Meikle, W.P.S., Kotak, Rubina, Farrah, D., Mattila, S., Van Dyk, S.D., Andersen, A., Fesen, R., Filippenko, A.V., Foley, R.J., Fransson, C., Gerardy, C.L., Hoeflich, P.A., Lundqvist, P., Pozzo, M., Sollerman, J., Wheeler, C.   +15 more
openaire   +4 more sources

DUST AND THE TYPE II-PLATEAU SUPERNOVA 2004et [PDF]

The Astrophysical Journal, 2009
We present mid-infrared (MIR) observations of the Type II-plateau supernova (SN) 2004et, obtained with the {\it Spitzer Space Telescope} between days 64 and 1406 past explosion. Late-time optical spectra are also presented. For the period 300-795 days past explosion, we argue that the spectral energy distribution of SN 2004et comprises (a) a hot ...
Kotak, R., Meikle, W. P. S., Farrah, D., Gerardy, C. L., Foley, Ryan J., Van Dyk, S. D., Fransson, C., Lundqvist, P., Sollerman, Jesper, Fesen, R., Filippenko, Alexei V., Mattila, S., Silverman, Jeffrey M., Andersen, A. C., Hoflich, Peter A., Pozzo, M., Wheeler, J. Craig   +16 more
openaire   +4 more sources

Cosmology with Type II supernovae [PDF]

International Journal of Modern Physics D, 2019
With the recent progresses on the Type II supernovae, we attempt to investigate whether there does exist new physics beyond the standard cosmological paradigm, i.e. the cosmological constant [Formula: see text] plus cold dark matter ([Formula: see text]CDM).
openaire   +2 more sources

Understanding Type II Supernovae [PDF]

International Astronomical Union Colloquium, 2005
SummaryWe present the results of a systematic analysis of a group of Type II plateau supernovae that span a large range in luminosities, from faint objects like SN 1997D and 1999br to very luminous events like SN 1992am. The physical properties of the supernovae appear to be related to the plateau luminosity or the expansion velocity.
Zampieri, L., Ramina, M., Pastorello, A.
openaire   +3 more sources

Explosion Parameters of SN 2013df and Properties of Its Progenitor Star [PDF]

, 2014
Type IIb supernovae have only recently been identified as a distinct flavor of core-collapse stellar explosions. These supernovae represent a transitional type between Type II and Type Ib supernovae.
Powell, Diana K., Powell, Diana K. (5267623)   +1 more
core   +1 more source