Type Ia supernovae and the12C+12C reaction rate
نویسندگان
چکیده
منابع مشابه
Type Ia supernovae and the 12C+12C reaction rate
Context. Even if the 12C+12C reaction plays a central role in the ignition of type Ia supernovae (SNIa), the experimental determination of its cross-section at astrophysically relevant energies (E 2 MeV) has never been made. The profusion of resonances throughout the measured energy range has led to speculation that there is an unknown resonance at E0 ∼ 1.5 MeV possibly as strong as the one mea...
متن کاملType Ia Supernovae
Type Ia Supernovae are in many aspects still enigmatic objects. Their observational and theoretical exploration is in full swing, but we still have plenty to learn about these explosions. Recent years have already witnessed a bonanza of supernova observations. The increased samples from dedicated searches have allowed the statistical investigation of Type Ia Supernovae as a class. The observati...
متن کاملType Ia Supernovae and Cosmology
I discuss the use of Type Ia supernovae (SNe Ia) for cosmological distance determinations. Low-redshift SNe Ia (z < ∼ 0.1) demonstrate that the Hubble expansion is linear with H0 = 72 ± 8 km s −1 Mpc, and that the properties of dust in other galaxies are generally similar to those of dust in the Milky Way. The light curves of high-redshift (z = 0.3– 1) SNe Ia are stretched in a manner consisten...
متن کاملThe Rate of Type Ia Supernovae in Nearby Dwarf Galaxies
We used the Robotic Optical Transient Search Experiment (ROTSE-III) astrophysical transient survey to determine the rate of type Ia supernovae (SNe Ia) in dwarf galaxies within a radius of 310 Mpc. The rate is inferred from the SNe Ia sample discovered by ROTSE-III and a Monte Carlo simulation that estimates the ROTSE-III SNe Ia detection efficiency. Assuming that the rate of SNe Ia is the same...
متن کاملA High Intrinsic Peculiarity Rate Among Type Ia Supernovae
We have compiled a sample of 45 Type Ia supernovae (SNe Ia) discovered by the Lick Observatory Supernova Search (LOSS) and the Beijing Astronomical Observatory Supernova Survey (BAOSS), and determined the rate of spectroscopically peculiar SNe Ia (i.e., SN 1986G-like, SN 1991bg-like, and SN 1991T-like objects) and the luminosity function of SNe Ia. Because of the nature of the two surveys (dist...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2011
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201117814