Type 1a: The Other Type of SupernovaJ. MillerThe Winnower
Type Ic Supernovae are a type of supernova that exhibit strong Si II absorption lines in their optical spectra, similar to Type Ia supernovae. They are characterized by the absence of hydrogen and helium lines, and are known for their high luminosities and uniform temporal evolution. ...
The Type I supernova 1983n in NGC 5236 (M 83) was unusual because the 6115 A absorption feature normally associated with the Type I maximum-light spectrum was missing and the absolute luminosity was down by 1.4 mag compared with the normal Type I, even though the shape of the optical lig...
UV emission lines in passively evolving galaxies can reveal the progenitors of type Ia supernovae The question of which progenitor channel can reproduce the observed rate of Type Ia supernovae (SNeIa) remains unresolved, the two leading models being the... TE Woods,M Gilfanov - 《Astrophysics...
SN 2013df received: 10 December 2015 accepted: 07 July 2016 Published: 02 August 2016 K. L. Li1,2 & A. K. H. Kong1 The inverse-Compton X-ray emission model for supernovae has been well established to explain the X-ray properties of many supernovae for over 30 years....
For the testing of these models, we use 359 low- and intermediate-redshift Supernovae Type 1A data obtained from the SDSS-II/SNLS2 Joint Light-curve Analysis (JLA). We develop a Markov Chain Monte Carlo (MCMC) simulation to find a best-fitting function within reasonable ranges for each ...
Full size image Remarkably, CsCdCl3:x%Br samples exhibit substantial LPL with distinctive time-dependent afterglow alterations. As illustrated in Fig.4a, the pristine CsCdCl3host manifests an orange–red afterglow extinguishing promptly upon cessation of the 254 nm UV lamp. CsCdCl3:x%Br, conv...
We report on the UBVRI photometry and spectroscopy of SN 2011fe. This SN is a recent bright Type-Ia supernova (SN Ia) that occurred in the spiral galaxy M101. One of the closest and brightest SNe Ia in the last 40 yrs, the SN was discovered in Aug, 2011, by the PTF (Nugent et ...
The calibration of 20 supernovae discovered and observed by the Supernovae Cosmology Project and EROS collaboration in 1999 is described. Using novel calibration techniques, we calibrate the supernovae images in the Johnson–Cousins U, B, V, R and I bands at the 1% level....
Scientists are beginning to sort out the stellar ingredients that produce a type la supernova,...doi:10.1002/scin.5591810304Nadia DrakewileyScience News