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
Using this constitutional provision that gives the media the power to serve as one of the...doi:10.1002/scin.5591851106CrockettChristopherJohn Wiley & Sons, Ltd.Science NewsCrockett, C. (2014). White dwarf boosts light of companion. Science News, 185(11), 9-9....
Such a small radius implies that the star’s mass is close to the maximum white dwarf mass, or Chandrasekhar mass. ZTF J190132.9+145808.7 is likely to be cooling through the Urca processes (neutrino emission from electron capture on sodium) because of the high densities reached in its core....
In this work, we present the relevant white dwarf cooling limits over the entire A′ mass range. In particular, we have performed a rigorous computation of the luminosities in the resonant regime, where the A′ mass is comparable to the white dwarf plasma frequencies. Keywords: New Gauge ...
Bildsten, Gravitational settling of 22Ne in liquid white dwarf interiors: cooling and seismological effects. ApJ 580, 1077 (2002) 5. E. Garca-Berro, L.G. Althaus, A.H. Córsico et al., Gravitational settling of 22Ne and white dwarf evolution. ApJ 677, 473 (2008) 6. R.V. Lobato,...
Our results also suggest that thousands of years prior to the binary merger, the white dwarf may be heated up significantly by tidal interactions. However, more study is needed since the physical amplitudes of the excited oscillation modes become highly non-linear in the outer layer of the star...
Annas, George JMinerva PediatricaANNAS, G. J. -- Health law at the turn of the century : from White Dwarf to Red Giant. Connecticut Law Review. 21 : 3 (1989) 551-569.Annas GJ: Health law at the turn of the century: from white dwarf to red giant. Comm L Rev 2;551- 69, ...
The detection1 of a dust disk around the white dwarf star G29-38 and transits from debris orbiting the white dwarf WD 1145+017 (ref. 2) confirmed that the photospheric trace metals found in many white dwarfs3 arise from the accretion of tidally disrupted
R. NapiwotzkiCentre of Astrophysics Research, University of Hertfordshire, College Lane, Hatfield AL10 9ABJohn Wiley & Sons, LtdMonthly Notices of the Royal Astronomical SocietyJ. Antoniadis, C. G. Bassa, N. Wex, M. Kramer, and R. Napiwotzki. A white dwarf companion to the relativistic ...
The two WDs will merge in 37 Myr and most likely form a core He-burning single subdwarf star. J01061000 is the shortest time-scale merger system currently known. The gravitational wave strain from J01061000 is at the detection limit of the Laser Interferometer Space Antenna (LISA). However...