Results 61 to 70 of about 73,128 (295)

Rotating hot white dwarfs [PDF]

Gravitation, Astrophysics, and Cosmology, 2016
2 pages, 2 ...
Boshkayev, Kuantay, Rueda, Jorge A., Zhami, Bakytzhan   +2 more
openaire   +2 more sources

Recent Results from Infrared Observations of White Dwarfs, their Companions, and the Dust that Surrounds Them [PDF]

, 2007
Although "traditionally" observed at short wavelengths, white dwarfs have displayed many surprising features when probed in the infrared. We present an overview of recent results from ground- and space-based near- to mid-infrared observations of white ...
Brinkworth, C. S., Hoard, D. W., Wachter, S.   +2 more
core  

Discovery of New Ultracool White Dwarfs in the Sloan Digital Sky Survey

, 2004
We report the discovery of five very cool white dwarfs in the Sloan Digital Sky Survey (SDSS). Four are ultracool, exhibiting strong collision induced absorption (CIA) from molecular hydrogen and are similar in color to the three previously known coolest
Atsuko Nitta, Dan Long, Don Q. Lamb, Eric H. Neilsen, Jr., Evalyn Gates, Geza Gyuk, Howard Brewington, Hugh C. Harris, J. Brinkmann, James Liebert, Jorgensen U. G., Jurek Krzesinski, Mark Subbarao, Michael Harvanek, Peter R. Newman, S. J. Kleinman, Scott Anderson, Stephanie A. Snedden   +17 more
core   +2 more sources

White Dwarfs

Le Journal de Physique Colloques, 1980
The thermal properties and neutrino emissivity of matter in the dense, degenerate cores of white dwarfs, together with efficient heat transport through the high-density envelopes of these stars, affect the theoretical white dwarf luminosity function.
openaire   +2 more sources

Do White Dwarfs Sample Water-rich Planetary Material?

The Astrophysical Journal
Polluted white dwarfs offer a unique way to directly probe the compositions of exoplanetary bodies. We examine the water content of accreted material using the oxygen abundances of 51 highly polluted white dwarfs.
Isabella L. Trierweiler, Carl Melis, Érika Le Bourdais, Patrick Dufour, Alycia J. Weinberger, Boris T. Gänsicke, Nicola Gentile-Fusillo, Siyi Xu, Jay Farihi, Andrew Swan, Malena Rice, Edward D. Young   +11 more
doaj   +1 more source

An overview of white dwarf stars

EPJ Web of Conferences, 2013
We present a brief summary of what is currently known about white dwarf stars, with an emphasis on their evolutionary and internal properties. As is well known, white dwarfs represent the end products of stellar evolution for the vast majority of stars ...
Charpinet S., Brassard P., Fontaine G., Randall S.K., Van Grootel V.   +4 more
doaj   +1 more source

White-Dwarf Asteroseismology With the Kepler Space Telescope

Frontiers in Astronomy and Space Sciences, 2020
In the course of their evolution, white-dwarf stars go through at least one phase of variability in which the global pulsations they undergo allow astronomers to peer into their interiors, making it possible to shed light on their deep inner structure ...
Alejandro H. Córsico, Alejandro H. Córsico   +1 more
doaj   +1 more source

Absolute magnitudes of white dwarfs and discovery of new white dwarfs from FBS Blue Stellar Objects by means of Gaia EDR3 data

Open Astronomy, 2022
This article is a presentation of a project which is a statistical study of white dwarfs’ properties carried out based on the sample of the First Byurakan Survey Blue Stellar Objects (FBS BSOs) and the Catalogue of White Dwarfs.
Mickaelian Areg M., Mikayelyan Gor A., Abrahamyan Hayk V., Paronyan Gurgen M., Malkov Oleg Yu.   +4 more
doaj   +1 more source

Spectroscopic confirmation of UV-bright white dwarfs from the Sandage Two-Color Survey of the Galactic Plane

, 2011
We present spectroscopic observations confirming the identification of hot white dwarfs among UV-bright sources from the Sandage Two-color Survey of the Galactic plane and listed in the Lanning (Lan) catalog of such sources.
Beauchamp, Beauchamp, Bovy, de Zeeuw, Eisenstein, Gates, Holberg, Howard H. Lanning, Kawka, Kilic, Kilkenny, Luyten, Luyten, Lépine, Lépine, Lépine, Lépine, McCook, Moehler, Monet, P. Bergeron, Ruiz, Subasavage, Sébastien Lépine, Tremblay, Tremblay, Vennes, Walker, Wood   +28 more
core   +1 more source

Enabling the study of gene function in gymnosperms: Virus‐induced gene silencing in Ephedra tweedieana

Applications in Plant Sciences, EarlyView.
Abstract Premise As the sister clade to angiosperms, extant gymnosperms are crucial for reconstructing ancestral gene regulatory networks in seed plants. This highlights the need for model systems representing each of their distinct lineages. However, tools to quickly and effectively investigate gene function in gymnosperms are still limited due to the
Anthony G. K. Garcia, Jo Trang Bùi, Todd P. Michael, Stefanie M. Ickert‐Bond, Verónica S. Di Stilio   +4 more
wiley   +1 more source