0000000000150355

AUTHOR

Ovidio Rabaza

showing 3 related works from this author

A Decade of GRB Follow-Up by BOOTES in Spain (2003–2013)

2016

This article covers ten years of GRB follow-ups by the Spanish BOOTES stations: 71 follow-ups providing 23 detections. Follow-ups by BOOTES-1B from 2005 to 2008 were given in a previous article and are here reviewed and updated, and additional detection data points are included as the former article merely stated their existence. The all-sky cameras CASSANDRA have not yet detected any GRB optical afterglows, but limits are reported where available.

spectroscopyArticle Subjectlcsh:Astronomy100418AFOS: Physical sciencesgamma-ray burst02 engineering and technology01 natural scienceslcsh:QB1-991emission0103 physical sciences0202 electrical engineering electronic engineering information engineeringpanchromatic observations010303 astronomy & astrophysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Physicsshooterenergy injectionAstronomyAstronomy and AstrophysicsBOOTEShost-galaxySpace and Planetary Science28 February 1997020201 artificial intelligence & image processingAstrophysics - High Energy Astrophysical PhenomenaafterglowGamma-ray burstAdvances in Astronomy
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A giant exoplanet orbiting a very-low-mass star challenges planet formation models

2019

Surveys have shown that super-Earth and Neptune-mass exoplanets are more frequent than gas giants around low-mass stars, as predicted by the core accretion theory of planet formation. We report the discovery of a giant planet around the very-low-mass star GJ 3512, as determined by optical and near-infrared radial-velocity observations. The planet has a minimum mass of 0.46 Jupiter masses, very high for such a small host star, and an eccentric 204-day orbit. Dynamical models show that the high eccentricity is most likely due to planet-planet interactions. We use simulations to demonstrate that the GJ 3512 planetary system challenges generally accepted formation theories, and that it puts con…

010504 meteorology & atmospheric sciencesGas giant530 PhysicsFOS: Physical sciencesMinimum massAstrophysics::Cosmology and Extragalactic Astrophysics7. Clean energy01 natural sciencesSettore FIS/05 - Astronomia e AstrofisicaPlanet0103 physical sciencesAstrophysics::Solar and Stellar Astrophysics010303 astronomy & astrophysicsSolar and Stellar Astrophysics (astro-ph.SR)Astrophysics::Galaxy Astrophysics0105 earth and related environmental sciencesEarth and Planetary Astrophysics (astro-ph.EP)PhysicsMultidisciplinary520 AstronomyGiant planetAstronomyPlanetary system620 EngineeringAccretion (astrophysics)ExoplanetOrbitAstrophysics - Solar and Stellar Astrophysics13. Climate actionAstrophysics::Earth and Planetary AstrophysicsAstrophysics - Earth and Planetary AstrophysicsScience
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OCTOCAM: A fast multichannel imager and spectrograph for the 10.4m GTC

2010

OCTOCAM is a multi-channel imager and spectrograph that has been proposed for the 10.4m GTC telescope. It will use dichroics to split the incoming light to produce simultaneous observations in 8 different bands, ranging from the ultraviolet to the near-infrared. The imaging mode will have a field of view of 2' x 2' in u, g, r, i, z, J, H and Ks bands, whereas the long-slit spectroscopic mode will cover the complete range from 4,000 to 23,000 {\AA} with a resolution of 700 - 1,700 (depending on the arm and slit width). An additional mode, using an image slicer, will deliver a spectral resolution of over 3,000. As a further feature, it will use state of the art detectors to reach high readout…

PhysicsGran Telescopio Canariasbusiness.industryResolution (electron density)Near-infrared spectroscopyAstrophysics::Instrumentation and Methods for AstrophysicsFOS: Physical sciencesField of viewlaw.inventionTelescopeOpticslawObservatorySpectral resolutionbusinessAstrophysics - Instrumentation and Methods for AstrophysicsInstrumentation and Methods for Astrophysics (astro-ph.IM)Spectrograph
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