Results 171 to 180 of about 5,171 (308)

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

Habitable planets around white and brown dwarfs: the perils of a cooling primary. [PDF]

Astrobiology, 2013
Barnes R, Heller R.
europepmc   +1 more source

Brown Dwarfs and Extrasolar Planets

, 2018
Areas of Interest: Brown Dwarfs, Transiting Planets, Direct Imaging of Extrasolar Planets, IR Observing, Kuiper Belt Objects, Young Stellar Objects, Space Telescopeshttps://scholarsarchive.byu.edu/researchnetworking/1247/thumbnail ...
Stephens, Denise
core  

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

Boreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein, Thomas Kasper, Alexis Badai Samudra, Martin Theuerkauf, Markus Lothar Fischer, Neda Rahimzadeh, Maria Sekar Proborukmi, Sonja Rigterink, Agnieszka Gruszczyńska, Christian Zeeden, Simon Parfitt, David John Horne, Lucy Roberts, Dustin White, Lisa Brogmus, Hans von Suchodoletz, Tobias Lauer, Marcel Weiss, David Colin Tanner, Brigitte Urban   +19 more
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

Resolved imaging confirms a radiation belt around an ultracool dwarf. [PDF]

Nature, 2023
Kao MM, Mioduszewski AJ, Villadsen J, Shkolnik EL.   +3 more
europepmc   +1 more source

Palaeoenvironmental and climatic changes from the lateglacial of the Saalian to the Late Weichselian in central Poland: a multiproxy study from Józefów

Boreas, EarlyView.
Józefów site is a case study which provides a detailed record of environmental and climate changes and confirms the main traces of the landscape morphogenesis of the Late Pleistocene established in central‐eastern Europe. This study presents a multiproxy reconstruction of palaeoenvironment under variable climatic conditions from the retreat of the ...
Aleksandra Majecka, Jacek Forysiak, Ryszard Borówka, Andreas Börner, Łukasz Bujak, Leszek Marks, Radosław Mieszkowski, Piotr Moska, Daniel Okupny, Małgorzata Pisarska‐Jamroży, Renata Stachowicz‐Rybka, Krzysztof Stachowicz   +11 more
wiley   +1 more source

A binary pulsar in a 53-minute orbit. [PDF]

Nature, 2023
Pan Z, Lu JG, Jiang P, Han JL, Chen HL, Han ZW, Liu K, Qian L, Xu RX, Zhang B, Luo JT, Yan Z, Yang ZL, Zhou DJ, Wang PF, Wang C, Li MH, Zhu M.   +17 more
europepmc   +1 more source

Prevalence of traded bird species in key biodiversity areas

Conservation Biology, EarlyView.
Abstract The use and trade of biodiversity involve tens of thousands of species that are exploited at a range of scales, intensities, and degrees of sustainability. As a result, some are highly threatened. Key biodiversity areas (KBAs) are sites of significance for the persistence of biodiversity identified nationally based on standardized criteria ...
Oscar Morton, Tom Lansley, Stuart H. M. Butchart, Graeme M. Buchanan, David P. Edwards   +4 more
wiley   +1 more source

Mitigating the Effects of CEO Overconfidence: A Group Information Processing Perspective

Corporate Governance: An International Review, EarlyView.
ABSTRACT Research Question/Issue This study explores the moderating effects of board network centrality on the relationship between CEO overconfidence and acquisition intensity. Research Findings/Insights Using a panel of S&P 1500 firms from 2002 to 2018, we find that CEO overconfidence is positively associated with acquisition intensity.
Jun Xu, Lin Li, Haibo Liu, Wanrong Hou, Qi Zhu   +4 more
wiley   +1 more source