By Alimat Aliyeva A group of European, British, and American astronomers has discovered 34 binary white dwarf systems i ...
Astronomers have discovered an extremely rare, high mass, compact binary star system only ~150 light years away. These two stars are on a collision course to explode as a type 1a supernova, appearing ...
A type Ia supernova occurs when a white dwarf — the cooling remnant of an aging star — draws hydrogen from a companion sun. When the dwarf reaches 1.4 times the mass of the Sun, the star ...
This brings the total number of hosts of supernovae ... SNe II‐P and SNe II‐L are found to occur among similar stellar populations. The ratio of the number of SNe Ia‐pec to normal SNe Ia appears to be ...
A rare metamorphic supernova, SN 2014C, was observed evolving from hydrogen-poor Type Ib to hydrogen-rich Type IIn, challenging astronomers' understanding of stellar explosions. Through advanced ...
ABSTRACT A comparative study of near–maximum‐light optical spectra of 24 Type Ia supernovae (SNe Ia ... high‐velocity Ca ii absorption in SN 2001el. Seven SNe Ia are assigned to a “broad‐line” group, ...