Results 111 to 120 of about 51,136 (327)

HCN and C2H2 in the Atmosphere of a T8.5+T9 Brown Dwarf Binary

The Astrophysical Journal Letters
T-type brown dwarfs present an opportunity to explore atmospheres teeming with molecules such as H _2 O, CH _4 , and NH _3 , which exhibit a wealth of absorption features in the mid-infrared.
Elisabeth C. Matthews, Paul Mollière, Helena Kühnle, Polychronis Patapis, Niall Whiteford, Matthias Samland, Pierre-Olivier Lagage, Rens Waters, Shang-Min Tsai, Kevin Zahnle, Manuel Guedel, Thomas Henning, Bart Vandenbussche, Olivier Absil, Ioannis Argyriou, David Barrado, Alain Coulais, Adrian M. Glauser, Goran Olofsson, John P. Pye, Daniel Rouan, Pierre Royer, Ewine F. van Dishoeck, T. P. Ray, Göran Östlin   +24 more
doaj   +1 more source

Volcanic soils alleviate the allelopathic capacity of Empetrum nigrum in degraded tundra ecosystems

Oikos, EarlyView.
Land degradation due to unsustainable land use is of major concern worldwide and recovery is often slow. A potential mechanism behind slow recovery of degraded ecosystems is the retarding impacts of allelopathic plant species on the establishment of species that might facilitate the recovery process.
Ingvild Ryde, Jóhanna F. Kristinsdóttir, Marika Halmová, Augustin Baussay, Kari Anne Bråthen, Elizabeth H. J. Neilson, Ingibjörg S. Jónsdóttir   +6 more
wiley   +1 more source

The Initial Mass Function of Low-mass Stars and Brown Dwarfs in the W3 Complex. [PDF]

Astron J, 2021
Huston MJ, Luhman KL.
europepmc   +1 more source

The 2MASS Wide-Field T Dwarf Search. IV Unting out T dwarfs with Methane Imaging

, 2005
We present first results from a major program of methane filter photometry for low-mass stars and brown dwarfs. The definition of a new methane filter photometric system is described.
Adam J. Burgasser, C. G. Tinney, Delfosse X., J. Davy Kirkpatrick, Jones H. R. A., Jones H. R. A., Low C., Michael W. McElwain, Tinney C. G.   +8 more
core   +1 more source

The missing woodland story: Implications of 1700 years of stand‐scale change on ‘naturalness’ and managing remnant broadleaved woodlands

People and Nature, EarlyView.
Abstract Longer‐term perspectives—equivalent to the lifespans of long‐lived trees—are required to fully inform perceptions of ‘naturalness’ used in woodland conservation and management. Stand‐scale dynamics of an old growth temperate woodland are reconstructed using palaeoecological data.
Annabel Everard, J. Edward Schofield, Tim Mighall, Scott Timpany, Gill Plunkett   +4 more
wiley   +1 more source

Brown dwarfs in wide-field surveys

EPJ Web of Conferences, 2011
In this invited talk, I briefly summarise early photometric and proper motion surveys carried out in the nearest and youngest open clusters to introduce the motivation behind the Galactic Cluster component of the UKIRT Infrared Deep Sky Survey ...
Lodieu N.
doaj   +1 more source

Barriers and Enablers: Teachers' Views on Mental Health Assessment in Ireland's Primary Schools

Psychology in the Schools, EarlyView.
ABSTRACT Mental health problems in school‐age children continue to be a major concern internationally. The school setting has increasingly been viewed as having a potential role in supporting the assessment of children's mental health, yet there is a paucity of studies which examine teachers' perceptions of this.
Pia O'Farrell, Charlotte Wilson, Gerry Shiel, Lorraine Swords   +3 more
wiley   +1 more source

Cryptic Ice Wedge Networks in Holocene Peat, Yukon‐Kuskokwim Delta, Alaska

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The Yukon‐Kuskokwim Delta (YKD), covering ~75,000 km2 of Alaska's discontinuous permafrost zone, has a historic (1902–2023) mean annual air temperature of ~−1°C and was previously thought to lack ice wedge networks. However, our recent investigations near Bethel, Alaska, revealed numerous near‐surface ice wedges.
Benjamin M. Jones, Mikhail Z. Kanevskiy, Melissa K. Ward Jones, Phillip R. Wilson, Isaiah Ditmer, Benjamin V. Gaglioti, Eric S. Klein, Rodrigo C. Rangel, Kristi L. Wallace, Miriam C. Jones, Matthew J. Wooller, Yuri Shur   +11 more
wiley   +1 more source

Medium-resolution 0.97–5.3 μm Spectra of Very Young Benchmark Brown Dwarfs with NIRSpec on Board the James Webb Space Telescope

The Astronomical Journal
Spectra of young benchmark brown dwarfs with well-known ages are vital to characterize other brown dwarfs, for which ages are in general not known. These spectra are also crucial to test atmospheric models, which have the potential to provide detailed ...
Elena Manjavacas, Pascal Tremblin, Stephan Birkmann, Jeff Valenti, Catarina Alves de Oliveira, Tracy L. Beck, G. Giardino, N. Lützgendorf, B. J. Rauscher, M. Sirianni   +9 more
doaj   +1 more source

The women honoured in flowering plant genera: From myth to reality

PLANTS, PEOPLE, PLANET, EarlyView.
Many flowering plant genera are named for people, but there is a gender gap in this naming, with only 6% of eponyms honouring women. Here we explore this gap by examining in detail women for whom plant genera are named. Our open shared dataset serves to make women honoured in plant genera more discoverable, resulting in further impact by allowing ...
Sabine von Mering, Sandra Knapp, Siobhan Leachman, Heather L. Lindon, Qianqian Gu, Sarah Vincent, Carmen Ulloa Ulloa   +6 more
wiley   +1 more source