Results 91 to 100 of about 154,154 (200)

Mass-radius relation of strongly magnetized white dwarfs: nearly independent of Landau quantization

, 2014
We compute static equilibria of white dwarf stars containing strong poloidal magnetic field, and present the modification of white dwarf mass-radius relation caused by the magnetic field.
Bera, Prasanta, Bhattacharya, Dipankar
core   +1 more source

Asteroseismology of the ZZ Ceti and DAZ GD133

EPJ Web of Conferences, 2017
GD 133 is a DAZ white dwarf with an atmosphere polluted by heavy elements accreted from a debris disk, which is formed by the disruption of rocky planetesimals with orbits bringing them at the white dwarf tidal radius.
Fu J.-N., Vauclair G., Su J.
doaj   +1 more source

Following the Pulsations in the Long-term Cooling of GW Librae and V386 Serpentis

The Astronomical Journal
GW Lib and V386 Ser are dwarf novae systems containing pulsating white dwarfs that underwent large 8–9 mag amplitude outbursts in 2007 and 2019, respectively.
Paula Szkody, Jan van Roestel, Keaton J. Bell, Zachary P. Vanderbosch, Anjum Mukadam, Simone Scaringi   +5 more
doaj   +1 more source

KIC 4552982: outbursts and pulsations in the longest-ever pseudo-continuous light curve of a ZZ Ceti

EPJ Web of Conferences, 2015
KIC 4552982 was the first ZZ Ceti (hydrogen-atmosphere pulsating white dwarf) identified to lie in the Kepler field, resulting in the longest pseudo-continuous light curve ever obtained for this type of variable star.
Bell K. J., Hermes J. J., Bischoff-Kim A., Moorhead S., Castanheira B. G., Montgomery M. H., Winget D. E.   +6 more
doaj   +1 more source

A Dynamical Model for IRAS 00500+6713: The Remnant of a Type Iax Supernova SN 1181 Hosting a Double Degenerate Merger Product WD J005311

The Astrophysical Journal
IRAS 00500+6713 is a hypothesized remnant of a Type Iax supernova SN 1181. Multiwavelength observations have revealed its complicated morphology; a dusty infrared ring is sandwiched by the inner and outer X-ray nebulae. We analyze the archival X-ray data
Takatoshi Ko, Hiromasa Suzuki, Kazumi Kashiyama, Hiroyuki Uchida, Takaaki Tanaka, Daichi Tsuna, Kotaro Fujisawa, Aya Bamba, Toshikazu Shigeyama   +8 more
doaj   +1 more source

Tidal Disruption of Planetesimals from an Eccentric Debris Disk Following a White Dwarf Natal Kick

The Astrophysical Journal Letters
The surfaces of many white dwarfs are polluted by metals, implying a recent accretion event. The tidal disruption of planetesimals is a viable source of white dwarf pollution and offers a unique window into the composition of exoplanet systems.
Tatsuya Akiba, Selah McIntyre, Ann-Marie Madigan   +2 more
doaj   +1 more source

ELOVL5 and VLDLR synergistically affect n-3 PUFA deposition in eggs of different chicken breeds

Poultry Science
: There was no significant difference in the composition and content of fatty acids in eggs among different breeds initially, but following the supplementation of flaxseed oil, Dwarf Layer were observed to deposit more n-3 polyunsaturated fatty acid ...
Caiyun Jiang, Yuanhang Shi, Xuefeng Shi, Jin Yan, Lin Xuan, Longyu Zhuang, Junying Li, Guiyun Xu, Jiangxia Zheng   +8 more
doaj   +1 more source

The MIRI Exoplanets Orbiting White dwarfs (MEOW) Survey: Mid-infrared Excess Reveals a Giant Planet Candidate around a Nearby White Dwarf

The Astrophysical Journal Letters
The MIRI Exoplanets Orbiting White dwarfs survey is a cycle 2 JWST program to search for exoplanets around dozens of nearby white dwarfs via infrared excess and direct imaging.
Mary Anne Limbach, Andrew Vanderburg, Alexander Venner, Simon Blouin, Kevin B. Stevenson, Ryan J. MacDonald, Sydney Jenkins, Rachel Bowens-Rubin, Melinda Soares-Furtado, Caroline Morley, Markus Janson, John Debes, Siyi Xu, Evangelia Kleisioti, Matthew Kenworthy, Paul Butler, Jeffrey D. Crane, Dave Osip, Stephen Shectman, Johanna Teske   +19 more
doaj   +1 more source

Non-rotating and slowly rotating white dwarfs in classical physics

Physical Sciences and Technology, 2016
The equilibrium configurations of uniformly rotating white dwarfs are calculated in the framework of classical physics. The Chandrasekhar and the Salpeter equations of state are used to describe the white dwarf matter.
K. Boshkayev, J.A. Rueda, R. Ruffini, B. Zhami, Zh. Kalymova, G. Balgimbekov   +5 more
doaj  

The White Dwarf Pareto: Tracing Mass Loss in Binary Systems

The Astrophysical Journal
The white dwarf mass distribution has been studied primarily at two extremes: objects that presumably evolved as single stars, and members of close binaries that likely underwent substantial interaction.
Sahar Shahaf
doaj   +1 more source