Results 131 to 140 of about 2,016,206 (398)

Gaiaphotometry for white dwarfs [PDF]

Astronomy & Astrophysics, 2014
Context. White dwarfs can be used to study the structure and evolution of the Galaxy by analysing their luminosity function and initial mass function. Among them, the very cool white dwarfs provide the information for the early ages of each population.
Piotr M. Kowalski, Carme Jordi, Silvia Catalan, Silvia Catalan, J. M. Carrasco, Ralf Napiwotzki, Annie C. Robin, Pier-Emmanuel Tremblay, Xavier Luri   +8 more
openaire   +7 more sources

A disintegrating minor planet transiting a white dwarf [PDF]

Nature, 2015
Most stars become white dwarfs after they have exhausted their nuclear fuel (the Sun will be one such). Between one-quarter and one-half of white dwarfs have elements heavier than helium in their atmospheres, even though these elements ought to sink ...
A. Vanderburg, J. Johnson, S. Rappaport, A. Bieryla, J. Irwin, J. Lewis, D. Kipping, Warren R. Brown, P. Dufour, D. Ciardi, R. Angus, L. Schaefer, D. Latham, D. Charbonneau, C. Beichman, J. Eastman, N. McCrady, R. Wittenmyer, J. Wright   +18 more
semanticscholar   +1 more source

Down Syndrome in Maternity Care: Mothers' Experiences of Prenatal Screening

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Prenatal screening for Down syndrome (DS) is offered to expectant parents receiving antenatal care in many countries, with an emphasis on providing parents with the opportunity to make informed choices about their pregnancy. We examined experiences of prenatal screening among mothers of children with DS living in England, Scotland, or Wales ...
Tamar Rutter, Richard Hastings, Nicola Enoch, Samantha Flynn, Matthew Randell, Chris Stinton   +5 more
wiley   +1 more source

Hubble Space Telescope Observations of UV Oscillations in WZ Sagittae During the Decline from Outburst [PDF]

, 2003
We present a time series analysis of Hubble Space Telescope observations of WZ Sge obtained in 2001 September, October, November and December as WZ Sge declined from its 2001 July superoutburst.
Boris T. Gänsicke, Christian Knigge, Clemens J. C., Edward M. Sion, Gansicke B. T., Giovannini O., Kepler S. O., Knox S. Long, Lasota J.-P., Meyer F., Meyer-Hofmeister E., Mineshige S., Papaloizou J., Patrick Godon, Paula Szkody, Skidmore W., Smak J., Sparks W. M., van Zyl L., Warner B., Welsh W. F., William F. Welsh   +21 more
core   +2 more sources

Observations of Ultracool White Dwarfs [PDF]

The Astrophysical Journal, 2001
Accepted to Astronomical Journal, March ...
Oppenheimer, B. R., Saumon, D., Hodgkin, S. T., Jameson, R. F., Hambly, N. C., Chabrier, G., Filippenko, A. V., Coil, A. L., Brown, M. E.   +8 more
openaire   +6 more sources

The binarity of the local white dwarf population [PDF]

, 2017
Context As endpoints of stellar evolution, white dwarfs (WDs) are powerful tools to study the evolutionary history of the Galaxy. In particular, the multiplicity of WDs contains information regarding the formation and evolution of binary systems ...
S. Toonen, S. Toonen, S. Toonen, M. Hollands, B. Gänsicke, T. Boekholt, T. Boekholt   +6 more
semanticscholar   +1 more source

Management of Cardiovascular Health Issues in Turner Syndrome: Expert Insights and Expanded Recommendations From the 2024 Guideline Development Team

American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Turner syndrome (TS) is frequently complicated by congenital heart disease (CHD). While left‐sided lesions such as bicuspid aortic valve (BAV) and coarctation of the aorta are the most common structural heart lesions in TS, other anomalies, such as aortic arch malformations, hypoplastic left heart syndrome (HLHS), persistent left superior vena
Katya de Groote, Sheetal R. Patel, Kristian Havmand Mortensen, Isabel Witvrouwen, Anthonie Duijnhouwer, Nicole M. Brown, Jasmine Grewal, Kathryn C. Chatfield, Aaron T. Dorfman, Siddharth K. Prakash   +9 more
wiley   +1 more source

A White Dwarf Catalog from LAMOST DR11 Using Deep Learning

The Astrophysical Journal Supplement Series
White dwarfs, also referred to as degenerate dwarfs, represent the ultimate fate for the majority of stars in the Universe, unless their mass is large enough for them to evolve into black holes or neutron stars.
Shengwen Zhang, Yanxia Zhang, Chao Liu
doaj   +1 more source

The Physics of Crystallizing White Dwarfs [PDF]

The Astrophysical Journal, 1997
Accepted for publication in ApJ (16 pages, 1 figure, aasms4)
Enrique García-Berro, Margarita Hernanz, Jordi Isern, Robert Mochkovitch   +3 more
openaire   +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