Results 31 to 40 of about 1,466 (265)
The “Mysterious” Origin of Brown Dwarfs [PDF]
The Astrophysical Journal, 2004 11 pages, 3 figures, ApJ submitted Error in equation 1 has been corrected.
Padoan, Paolo, Nordlund, AAke
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The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory
Astronomische Nachrichten, EarlyView.ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth +20 more
wiley +1 more source
The Impact of Irradiation on the Radius and Thermal Evolution of Transiting Brown Dwarfs
The Astrophysical JournalMasses and radii of transiting brown dwarfs can be measured directly, in contrast to isolated field brown dwarfs, whose mass and radius inferences are model dependent.
Sagnick Mukherjee +4 more
doaj +1 more source
An irradiated brown-dwarf companion to an accreting white dwarf [PDF]
Nature, 2016 19 pages, 4 figures, published in Nature 19 ...
Hernandez Santisteban, Juan +9 more
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Listening to Hong Kong children's perspectives through pretend play
British Educational Research Journal, EarlyView.Abstract Quality in early childhood education and care (ECEC) has become an increasing concern in recent years. The issue has been regularly discussed by different stakeholders. However, the rising concern regarding quality in ECEC has not seriously taken into account children's perspectives.
Suzannie K. Y. Leung
wiley +1 more source
Between public service and market: Portraying the bifront university in a platformized world
British Educational Research Journal, EarlyView.Abstract This paper contributes to the international debate on the changes affecting recruitment and orientation processes toward higher education. Based on qualitative research involving 19 Italian public universities, the study analyses the transformations in communication, recruitment and orientation activities within platformization and increasing ...
Marco Pitzalis +2 more
wiley +1 more source
The Influence of Clouds and Deuterium-burning on Brown Dwarf Habitable Zones
The Astrophysical JournalTo better understand the potential habitability of planets orbiting brown dwarfs, this work presents a new set of equilibrium temperature evolution tracks. Unlike most previous work that relied on analytic scaling relationships for brown dwarf luminosity
Kayla J. Smith, Mark S. Marley
doaj +1 more source
The Astronomical Journal, 2023 We present three new brown dwarf spectral-binary candidates: CWISE J072708.09−360729.2, CWISE J103604.84−514424.4, and CWISE J134446.62−732053.9, discovered by citizen scientists through the Backyard Worlds: Planet 9 project.
Alexia Bravo +11 more
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‘I was treated as a deficit’: Immigrant teachers' career progression in Australia
British Educational Research Journal, EarlyView.Abstract Immigrant teachers have long been recruited through skilled and employer‐sponsored migration schemes to address teacher shortages in Australia, yet their career trajectories remain constrained by systemic inequities that limit their integration and professional development opportunities.
Ching Ting Tany Kwee +2 more
wiley +1 more source
, 1998 After a discussion of the physical processes in brown dwarfs, we present a complete, precise definition of brown dwarfs and of planets inspired by the internal physics of objects between 0.1 and 0.001 M_sun. We discuss observational techniques for characterizing low-luminosity objects as brown dwarfs, including the use of the lithium test and cooling ...
Oppenheimer, Ben R. +2 more
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