Results 201 to 210 of about 201,475 (348)

Extended X-Ray Emission Region of an Accreting White Dwarf [PDF]

, 1976
A. Hayakawa, R. Hoshi
openalex   +1 more source

A rotating white dwarf with two faces

, 2022
Caiazzo I, Burdge K, Ferrario L, Fuller J, Gänsicke B, Hermes J, Heyl J, Kawka A, Kulkarni S, Marsh T, Mroz P, Prince T, Richer H, Rodriguez A, Tremblay P, Roestel Jv, Vanderbosch Z, Vennes S, Wickramasinghe D, Dhillon V, Munday J, Littlefair S, Bellm E, Breedt E, Brown A, Dekany R, Drake A, Dyer M, Graham M, Green M, Laher R, Kerry P, Parsons S, Pelisoli I, Riddle R, Rusholme B, Sahman D.   +36 more
europepmc   +1 more source

Hubble COS Spectroscopy of the Dwarf Nova CW Mon: The White Dwarf in Quiescence? [PDF]

Astron J, 2017
Hause C, Sion EM, Godon P, Boris TG, Szkody P, de Martino D, Pala A.   +6 more
europepmc   +1 more source

Sustainable Tourism and SDGs in the South Caucasus

Sustainable Development, EarlyView.
ABSTRACT This study examines sustainable tourism practices in the South Caucasus region (Armenia, Azerbaijan, and Georgia) through the lens of the United Nations Sustainable Development Goals (SDGs). A scoping literature review was conducted, analyzing academic papers from Scopus and Web of Science databases. Content analysis and expert validation were
Flavio Martins, Tatiana Sitchinava, Tigran Keryan, Alexander Mitrofanenko, Nelson Stefanelli, Yaniss Guigoz   +5 more
wiley   +1 more source

The Emerging Class of Double-faced White Dwarfs

The Astrophysical Journal
We report our findings on a spectroscopic survey of seven unresolved DA+DB binary white dwarf candidates. We have discovered extreme spectroscopic variations in one of these candidates, SDSS J084716.21+484220.40. Previous analysis failed to reproduce the
Adam Moss, Mukremin Kilic, Pierre Bergeron, Gracyn Jewett, Warren R. Brown   +4 more
doaj   +1 more source

Double-degenerate Carbon-Oxygen and Oxygen-Neon White Dwarf Mergers: A New Mechanism for Faint and Rapid Type Ia Supernovae. [PDF]

Astrophys J, 2018
Kashyap R, Haque T, Lorén-Aguilar P, García-Berro E, Fisher R.   +4 more
europepmc   +1 more source

Phylogeny and new sectional classification for the Cape Clade of the genus Indigofera (Fabaceae: Indigofereae)

TAXON, EarlyView.
Abstract The genus Indigofera in the Greater Cape Floristic Region (GCFR) comprises a diverse assortment of species. Almost 90% of the region's Indigofera species belong to the Cape Clade, while the remaining species are scattered among the other three globally distributed Indigofera clades.
Brian du Preez, Brian D. Schrire, Léanne L. Dreyer, Charles H. Stirton, Samson B.M. Chimphango, A. Muthama Muasya   +5 more
wiley   +1 more source

Phase-resolved Hubble Space Telescope WFC3 Spectroscopy of the Weakly Irradiated Brown Dwarf GD 1400 and Energy Redistribution–Irradiation Trends in Six White Dwarf–Brown Dwarf Binaries

The Astrophysical Journal
Irradiated brown dwarfs offer a unique opportunity to bridge the gap between stellar and planetary atmospheres. We present high-quality Hubble Space Telescope/Wide Field Camera 3/G141 phase-resolved spectra of the white dwarf–brown dwarf binary GD 1400 ...
Rachael C. Amaro, Dániel Apai, Yifan Zhou, Joshua D. Lothringer, Sarah L. Casewell, Xianyu Tan, Ben W. P. Lew, Travis Barman, Mark S. Marley, L. C. Mayorga, Vivien Parmentier   +10 more
doaj   +1 more source

The sense that we're invisible: A longitudinal analysis of diverse women's experiences with structural violence in biomedical doctoral programs

Journal of Research in Science Teaching, EarlyView.
Abstract A longstanding and significant disparity in representation across gender, economic status, ethnicity, race, and sexual identity exists within STEM doctoral training. Most of the research on the retention and attrition of minoritized PhD STEM students focuses on individual factors, rather than system level issues.
Ida Salusky, Robin Remich, Remi Jones, Grevelin Ulerio, Richard McGee   +4 more
wiley   +1 more source

The Effect of Seductive Details on Knowledge Retention in Physics Videos: A Mixed Methods Study

Journal of Research in Science Teaching, EarlyView.
ABSTRACT Research reports that interesting but irrelevant information, seductive details, in teaching material can impede learning. In science education, the inclusion of historical narratives in lessons to promote interest has been recommended but may hinder learning.
Richard Brock, Liam Cini O'Dwyer, Ben Rogers   +2 more
wiley   +1 more source