opacities along the line of sight to and in the atmosphere of the white dwarf in the close 热度: Games Workshop - White Dwarf - 053 ENG.pdf 热度: ISSUE55 14February2015 Editor:JesBickham jes@whitedwarf.co.uk Publisher:PaulLyons
Several mechanisms compete with gravitational settling to change a white dwarf’s surface composition as it cools3, and the fraction of white dwarfs with helium atmospheres is known to increase by a factor of about 2.5 below a temperature of about 30,000 kelvin4,5,6,7,8; therefore, some...
白雪公主和七个小矮人英文版(Snow_White_and_the_seven_dwarves)白雪公主和七个小矮人Snow White and the seven dwarves Chapter 1 Once upon a time, in a land far away, a king and queen lived in a beautiful castle. They had everything they wanted, except a child of their own. One night, ...
white dwarf. Such helium novae have long been a theoretical object until the first helium nova V445 Pup was discovered in 2000. Kato et al. (1989) assumed two types of helium ac- cretion: one is helium accretion from a helium star compan- ...
WHITE DWARF STARSSTAR CATALOGSDefinitionDefinitionA white dwarf is a compact object resulting from the evolution of stars with initial mass <8 M⊙. It is essentially the stellar core, composed mainly of carbon and oxygen (or of heldoi:10.1007/978-3-642-11274-4_1690Dr. Nikos Prantzos...
Supernovae Ia are bright explosive events that can be used to estimate cosmological distances, allowing us to study the expansion of the Universe. They are understood to result from a thermonuclear detonation in a white dwarf that formed from the exhaust
written by Haley Wahl | Sep 22, 2020 | Daily Paper Summaries翻译:冷笑话astro论文标题: A Giant Planet Candidate Transiting a White Dwarf论文作者: Andrew Vanderburg, Saul A. Rappaport, Siyi Xu, et al.一作工作单位: University of Wisconsin-Madison, Madison,
内容提示: arXiv:0806.1558v1 [astro-ph] 10 Jun 2008Idling Magnetic White Dwarfin the Synchronizing Polar BY Cam.The ”Noah-2” ProjectIvan L. Andronov 1,2 ,1 , Kirill A. Antoniuk 3 , Vitalii V. Breus 2 ,Lidia L. Chinarova 2 , Won Young Han 4 , Young Beom Jeon 4 ,Yonggi Kim...
We interpret it as a transient white dwarf pulsar with a period of 77.13 minutes. The∼ 10-minute f l aring duration corresponds to the epoch when the radio beam sweeps our line of sight.The bursting epoch corresponds to the episodes when stronger sunspot-like magnetic f i elds emerge ...
The initial–final mass relationship connects the mass of a white dwarf with the mass of its progenitor in the main-sequence. Although this function is of fundamental importance to several fields in modern astrophysics, it is not well constrained either from the theoretical or the observational ...