Showing 21 - 40 results of 300 for search '"brown dwarf"', query time: 0.30s Refine Results
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    The radius anomaly in the planet/brown dwarf overlapping mass regime by Baraffe I., Chabrier G., Leconte J., Levrard B.

    Published 2011-02-01
    “…The recent detection of the transit of very massive substellar companions (Deleuil et al. 2008; Bouchy et al. 2010; Anderson et al. 2010; Bakos et al. 2010) provides a strong constraint to planet and brown dwarf formation and migration mechanisms. Whether these objects are brown dwarfs originating from the gravitational collapse of a dense molecular cloud that, at the same time, gave birth to the more massive stellar companion, or whether they are planets that formed through core accretion of solids in the protoplanetary disk can not always be determined unambiguously and the mechanisms responsible for their short orbital distances are not yet fully understood. …”
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    Article
  4. 24

    Classification of Planetary Motion around Super-Jupiters and Brown Dwarfs by Euaggelos E. Zotos, Eman M. Moneer, Tobias C. Hinse

    Published 2024-03-01
    “…Depending on its mass, the transiting body can either be a super-Jupiter or a brown dwarf. To determine the final states of the Earth-size exoplanet, we conduct a systematic and detailed classification of the available phase space trajectories. …”
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    Article
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    Time-resolved spectroscopy of the variable brown dwarf Kelu-1 by Clarke, F, Tinney, C, Hodgkin, S

    Published 2003
    “…We report the results of observations designed to investigate the spectroscopic signatures of dust clouds on the L2 brown dwarf Kelu-1. Time-resolved medium-resolution spectra show no significant evidence of variability in the dust-sensitive TiO, CrH and FeH bandheads on a time-scale of 1-24 h. …”
    Journal article
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    A universal spin mass relation for brown dwarfs and planets by Scholz, A, Moore, K, Jayawardhana, R, Aigrain, S, Peterson, D, Stelzer, B

    Published 2018
    “…While brown dwarfs show similarities to stars early in their lives, their spin evolutions are much more akin to those of planets. …”
    Journal article
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    Brown dwarfs in Eddington-inspired Born-Infeld and beyond Horndeski theories by A. S. Rosyadi, A. Sulaksono, H. A. Kassim, N. Yusof

    Published 2019-12-01
    “…We used a recent compilation of brown dwarf masses and radii obtained from Ref. Bayliss et al. …”
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    Article
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    Mapping radio emitting-region on low-mass stars and brown dwarfs by Hallinan G., Yu S., Doyle J.G., MacKinnon A.L.

    Published 2011-07-01
    “…We are developing a theoretical model in order to simulate ECM and apply this model to map the radio-emitting region on low-mass stars and brown dwarfs.…”
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    Article
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    A Brown Dwarf Companion to the Nova-like Variable RW Tri by Zhibin Dai, Shengbang Qian, Indika Medagangoda

    Published 2021-11-01
    “…In accordance with the light-travel time effect, this periodical variation shown in our new O-C diagram indicates a brown dwarf hidden in RW Tri at a coplanar orbit. Note that the large scatter in the data range of 0–3 × 10<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mn>4</mn></msup></semantics></math></inline-formula> cycles requires the high-precision photometry in the longer base line in the future.…”
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    SMA and CARMA observations of young brown dwarfs in ρ Ophiuchi and Taurus by Lee C.-F., Ngoc P.-B., Ho P.

    Published 2011-07-01
    “…This demonstrates that brown dwarfs and low-mass stars likely share the same formation mechanism.…”
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    Article
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    The Discovery and Characterization of an Ultracompact Hot Subdwarf and Brown Dwarf Binary System by Blomberg, Lisa Nicole

    Published 2023
    “…In my project, I focused on studying a type of ultra-compact binary system called an HW Vir class binary – which is comprised of a hot sub dwarf and a brown dwarf. Because HW Vir systems can only be produced through the common envelope effect (CEE), understanding their physical parameters allows us to better understand the limitations of the CEE. …”
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    Thesis
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    Clouds in the coldest brown dwarfs: FIRE spectroscopy of Ross 458C by Burgasser, Adam J., Simcoe, Robert A., Bochanski, John J., Saumon, Didier, Mamajek, Eric E., Cushing, Michael C., Marley, Mark S., McMurtry, Craig, Pipher, Judith L., Forrest, William J.

    Published 2013
    “…Condensate clouds are a salient feature of L dwarf atmospheres, but have been assumed to play little role in shaping the spectra of the coldest T-type brown dwarfs. Here we report evidence of condensate opacity in the near-infrared spectrum of the brown dwarf candidate Ross 458C, obtained with the Folded-Port Infrared Echellette (FIRE) spectrograph at the Magellan Telescopes. …”
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