Results 21 to 30 of about 43,562 (319)
BROWN DWARF DISKS WITH ALMA [PDF]
The Astrophysical Journal, 2014 15 pages, 10 figures, accepted for publication in ...
Aleks Scholz +8 more
openaire +7 more sources
Permafrost and Periglacial Processes, Volume 34, Issue 1, Page 22-36, January/March 2023., 2023 Abstract Current climate change in the Arctic is unprecedented in the instrumental record, with profound consequences for the environment and landscape. In Arctic Sweden, aeolian sand dunes have been impacted by climatic changes since their initial formation after the retreat of the last glacial ice sheet.
Melanie Stammler +2 more
wiley +1 more source
The formation of brown dwarfs [PDF]
Proceedings of the International Astronomical Union, 2009 AbstractWe argue that brown dwarfs (BDs) and planemos form by the same mechanisms as low-mass hydrogen-burning stars, but that as one moves to lower and lower masses, an increasing fraction of these objects is formed by fragmentation of the outer parts (R ≳ 100 AU) of protostellar accretion discs around more massive primary protostars, which in turn ...
A. P. Whitworth +6 more
openaire +2 more sources
Unraveling the central role of root morphology and anatomy in lodging of tef (Eragrostis tef)
PLANTS, PEOPLE, PLANET, EarlyView., 2023 Crop diversification is considered key to ensuring agricultural sustainability and food security. Tef (Eragrostis tef (Zucc.) Trotter) is a cereal crop grown mainly in Ethiopia, where it thrives in a wide range of environments, including stress‐prone habitats.
Shiran Ben‐Zeev +5 more
wiley +1 more source
The Astronomy and Astrophysics Review, 2014 Review accepted for publication by The A&A Review (Spinger), 13 Figures, 53 pages, 233 references (Figure 1 updated and typos corrected)
Helling, Christiane, Casewell, Sarah
openaire +5 more sources
Automatic flower detection and phenology monitoring using time‐lapse cameras and deep learning
Remote Sensing in Ecology and Conservation, Volume 8, Issue 6, Page 765-777, December 2022., 2022 We present an automatized method for monitoring flower phenology of specific plant species trough full growing seasons and across geographical regions. The method couples image‐based monitoring of field plots with a dedicated convolutional neural network to detect and count flowers in the images, and returns information on flowering phenology at ...
Hjalte M. R. Mann +7 more
wiley +1 more source
Outflows and disks of brown dwarfs with SMA, CARMA and ALMA
EPJ Web of Conferences, 2013 Brown dwarfs are on the dividing line between planets and stars. Up to date, about 1,000 brown dwarfs, including the coolest known brown dwarfs with temperatures of ∼300 K as cool as the human body, have been discovered.
Tho Do D. +4 more
doaj +1 more source
Where to find over-massive brown dwarfs: new benchmark systems for binary evolution [PDF]
, 2021 Under the right conditions brown dwarfs that gain enough mass late in their lives to cross the hydrogen burning limit will not turn into low-mass stars, but rather remain essentially brown dwarf-like. While these objects, called either beige dwarfs or over-massive brown dwarfs, may exist in principle, it remains unclear exactly how they would form ...
arxiv +1 more source
Extending the Canada-France Brown Dwarf Survey to the near infrared
EPJ Web of Conferences, 2011 We present the first results of the Canada-France Brown Dwarfs Survey-InfraRed, hereafter CFBDSIR, our near infrared extension to the optical wide field survey CFBDS.
Bertin E. +8 more
doaj +1 more source
JWST/NIRSpec Observations of the Coldest Known Brown Dwarf
The Astronomical Journal, 2023 We present 1–5 μ m spectroscopy of the coldest known brown dwarf, WISE J085510.83−071442.5 (WISE 0855), performed with the Near-Infrared Spectrograph (NIRSpec) on board the James Webb Space Telescope (JWST).
K. L. Luhman +8 more
doaj +1 more source