Results 141 to 150 of about 48,990 (297)

Brown dwarfs

Scholarpedia, 2007
Derek Homeier, France Allard
openaire   +1 more source

TOI-2490b – the most eccentric brown dwarf transiting in the brown dwarf desert

Monthly Notices of the Royal Astronomical Society
ABSTRACT We report the discovery of the most eccentric transiting brown dwarf in the brown dwarf desert, TOI-2490b. The brown dwarf desert is the lack of brown dwarfs around main-sequence stars within $\sim 3$ au and is thought to be caused by differences in formation mechanisms between a star and planet.
Beth A Henderson, Sarah L Casewell, Andrés Jordán, Rafael Brahm, Thomas Henning, Samuel Gill, L C Mayorga, Carl Ziegler, Keivan G Stassun, Michael R Goad, Jack Acton, Douglas R Alves, David R Anderson, Ioannis Apergis, David J Armstrong, Daniel Bayliss, Matthew R Burleigh, Diana Dragomir, Edward Gillen, Maximilian N Günther, Christina Hedges, Katharine M Hesse, Melissa J Hobson, James S Jenkins, Jon M Jenkins, Alicia Kendall, Monika Lendl, Michael B Lund, James McCormac, Maximiliano Moyano, Ares Osborn, Marcelo Tala Pinto, Gavin Ramsay, David Rapetti, Suman Saha, Sara Seager, Trifon Trifonov, Stéphane Udry, Jose I Vines, Richard G West, Peter J Wheatley, Joshua N Winn, Tafadzwa Zivave   +42 more
openaire   +2 more sources

Views of Vidigal: negotiating opportunities and risks in a gentrifying favela in Rio de Janeiro Favela avec vue : négocier opportunités et risques dans un quartier en voie de gentrification à Rio de Janeiro

Journal of the Royal Anthropological Institute, EarlyView.
The contested dynamics of slum gentrification in Rio de Janeiro came into focus during the brief period of relative peace brought by the pacification policy leading up to the 2016 Olympics. In this unprecedented moment, Rio's South Zone favela residents experienced a respite from the daily confrontations with police operations and drug trade violence ...
Angela Torresan
wiley   +1 more source

Eight New Substellar Hyades Candidates from the UKIRT Hemisphere Survey

The Astronomical Journal
We have used the UKIRT Hemisphere Survey combined with the UKIDSS Galactic Cluster Survey, the UKIDSS Galactic Plane Survey, and the CatWISE2020 catalog to search for new substellar members of the nearest open cluster to the Sun, the Hyades.
Adam C. Schneider, Michael C. Cushing, Robert A. Stiller, Jeffrey A. Munn, Frederick J. Vrba, Justice Bruursema, Stephen J. Williams, Michael C. Liu, Alexia Bravo, Jacqueline K. Faherty, Austin Rothermich, Emily Calamari, Dan Caselden, Martin Kabatnik, Arttu Sainio, Thomas P. Bickle, William Pendrill, Nikolaj Stevnbak Andersen, Melina Thévenot   +18 more
doaj   +1 more source

Desegregationist Pan‐African Spiritual Strivings: Du Bois, the Black Church and the Critique of Imperialism*

Journal of Religious History, EarlyView.
Abstract This article argues that W. E. B. Du Bois grounded his seminal conceptualisation of “the Negro church” in a Pan‐Africanist challenge to how Christian reformers and missionaries' usage of “Darkest Africa” as a metaphor for modern urban vice and poverty denigrated Africa and the African diaspora while promoting a segregated, imperialist version ...
Kai Parker
wiley   +1 more source

The Formation of Brown Dwarfs: Observations

, 2006
We review the current state of observational work on the formation of brown dwarfs, focusing on their initial mass function, velocity and spatial distributions at birth, multiplicity, accretion, and circumstellar disks.
Joergens, Viki, Lada, Charles, Luhman, Kevin L., Muzerolle, James, Pascucci, Ilaria, White, Russel   +5 more
core   +1 more source

South Asian Bodies at British Borders in the 1970s: From the Ugandan Asian ‘Stateless Husbands’ to ‘Virginity Testing’

Gender &History, EarlyView.
ABSTRACT This article looks at two critical moments in British immigration – the case of the ‘stateless’ Ugandan Asian husbands, whose wives successfully argued for their entry in Britain in 1973 and the ‘virginity test’ performed on Mrs K at Heathrow Airport in 1979.
Antara Datta, Jinal Parekh
wiley   +1 more source

Magnetic Activity of Ultracool Dwarfs in the LAMOST DR11

The Astrophysical Journal
Ultracool dwarfs consist of lowest-mass stars and brown dwarfs. Their interior is fully convective, in contrast to that of the partly convective Sun-like stars. The magnetic field generation process beneath the surface of ultracool dwarfs is still poorly
Yue Xiang, Shenghong Gu, Dongtao Cao
doaj   +1 more source

NEW YOUNG STARS AND BROWN DWARFS IN THE UPPER SCORPIUS ASSOCIATION. [PDF]

Astron J, 2018
Luhman KL, Herrmann KA, Mamajek EE, Esplin TL, Pecaut MJ.   +4 more
europepmc   +1 more source

REPAIR AND RECONSTRUCTION FOR URBAN COMMONING: The Making of the Liberated Spaces in Naples

International Journal of Urban and Regional Research, EarlyView.
Abstract Commoning requires repair. Where capitalist logics of accumulation, enclosure and exclusion produce abandoned space through the city, urban commoners remake that space to serve the needs of inhabitants. Without hiding the paradoxes and risks of repair, based on years‐long ethnography in the Liberated Spaces in Naples, Italy, we demonstrate how
Martina Locorotondo, Adam Fishwick
wiley   +1 more source