Results 71 to 80 of about 73,292 (294)

White dwarf cooling sequences and cosmochronology

EPJ Web of Conferences, 2013
The evolution of white dwarfs is a simple gravothermal process. This means that their luminosity function, i.e. the number of white dwarfs per unit bolometric magnitude and unit volume as a function of bolometric magnitude, is a monotonically increasing ...
García-Berro E., Artigas A., Isern J.
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

35 Individuals With HUWE1‐Related Neurodevelopmental Disorder and Suggested Clinical Evaluations

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT HUWE1 (HECT, UBA, and WWE Domain Containing E3 Ubiquitin Protein Ligase1, OMIM 300697), located at Xp11.22, encodes a ubiquitin ligase that is highly conserved across species. Genetic variants in HUWE1 described in multiple independent studies cause X‐linked intellectual disability, including in the patients identified by Juberg, Marsidi, and ...
Mindy H. Li, Deziree L. Coleman, Kelsey Hogan, Danielle Luz, Lindsay Bhandari, Newell Belnap, Tiffany Busa, Charles Coutton, Klaus Dieterich, Svetlana Gorokhova, Clara Hildebrandt, Rachel Logan, Milena Mariani, Manuela Morleo, Vincenzo Nigro, John Pappas, Rachel Rabin, Kelly Schoch, Angelo Selicorni, Vandana Shashi, Rebecca Spillmann, Jennifer Sullivan, Charlotte Tardy, Samantha A. Schrier Vergano, Brock Grill, Kristin Baranano   +25 more
wiley   +1 more source

Novel Atmospheric Dynamics Shape the Inner Edge of the Habitable Zone around White Dwarfs

The Astrophysical Journal
White dwarfs offer a unique opportunity to search nearby stellar systems for signs of life, but the habitable zone around these stars is still poorly understood.
Ruizhi Zhan, Daniel D. B. Koll, Feng Ding   +2 more
doaj   +1 more source

Detached white-dwarf close-binary stars -- CV's extended family [PDF]

, 1999
I review detached binaries consisting of white dwarfs with either other white dwarfs or low mass main-sequence stars in tight orbits around them. Orbital periods have been measured for 15 white dwarf/white dwarf systems and 22 white dwarf/M dwarf systems.
Marsh, T. R.
core   +3 more sources

The Insistence of Blackness and the Persistence of Antiblackness in Ireland

Australian Journal of Social Issues, EarlyView.
ABSTRACT This paper positions Ireland as a critical site for examining the insistence of blackness and an antiblackness created and sustained through Irish ethnonationalist imaginaries and exclusionary processes. Drawing on connected sociologies and Irish Black Studies, this enquiry argues that antiblackness in Ireland operates as a generational force,
Philomena Mullen
wiley   +1 more source

Predicted incidence of Jupiter-like planets around white dwarfs

Astronomy & Astrophysics
Context. Gas-giant planets and brown dwarfs have been discovered in large numbers around main-sequence stars and even evolved stars. In contrast, and despite ongoing imaging surveys using state-of-the-art facilities, only a handful of substellar ...
Mauch-Soriano Alex, Schreiber Matthias R., Correa Diego, Pinilla Julio, Riveros-Jara Catalina, Vivanco Javiera, Ronco Maria Paula, Belloni Diogo, Lagos-Vilches Felipe, Brandner Wolfgang   +9 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

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