Results 11 to 20 of about 1,913 (40)

A broadband thermal emission spectrum of the ultra-hot Jupiter WASP-18b [PDF]

open access: yesNature, 2023
The dayside thermal emission spectrum and brightness temperature map of the ultra-hot Jupiter WASP-18b obtained from the NIRISS instrument on the JWST showed water emission features, an atmosphere consistent with solar metallicity, as well as a steep and
L. Coulombe   +276 more
semanticscholar   +1 more source

HATS-47b, HATS-48Ab, HATS-49b, and HATS-72b: Four Warm Giant Planets Transiting K Dwarfs [PDF]

open access: yesAstronomical Journal, 2020
We report the discovery of four transiting giant planets around K dwarfs. The planets HATS-47b, HATS-48Ab, HATS-49b, and HATS-72b have masses of , , , and , respectively, and radii of , , , and , respectively.
J. Hartman   +82 more
semanticscholar   +1 more source

TOI-503: The First Known Brown-dwarf Am-star Binary from the TESS Mission [PDF]

open access: yesAstronomical Journal, 2019
We report the discovery of an intermediate-mass transiting brown dwarf (BD), TOI-503b, from the TESS mission. TOI-503b is the first BD discovered by TESS, and it has circular orbit around a metallic-line A-type star with a period of P = 3.6772 ± 0.0001 ...
J. vSubjak   +150 more
semanticscholar   +1 more source

Impact of space weather on climate and habitability of terrestrial-type exoplanets [PDF]

open access: yesInternational Journal of Astrobiology, 2019
The search for life in the Universe is a fundamental problem of astrobiology and modern science. The current progress in the detection of terrestrial-type exoplanets has opened a new avenue in the characterization of exoplanetary atmospheres and in the ...
V. Airapetian   +46 more
semanticscholar   +1 more source

Complexity in the light curves and spectra of slow-evolving superluminous supernovae [PDF]

open access: yes, 2017
This work is based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere, Chile as part of PESSTO (the Public ESO Spectroscopic Survey for Transient Objects Survey) ESO programme 188.D-3003, 191.D ...
C. Inserra   +18 more
semanticscholar   +1 more source

MULTIFREQUENCY STUDIES OF THE PECULIAR QUASAR 4C +21.35 DURING THE 2010 FLARING ACTIVITY [PDF]

open access: yes, 2014
The discovery of rapidly variable Very High Energy (VHE; E > 100 GeV) γ-ray emission from 4C +21.35 (PKS 1222+216) by MAGIC on 2010 June 17, triggered by the high activity detected by the Fermi Large Area Telescope (LAT) in high energy (HE; E > 100 MeV ...
M. Ackermann   +497 more
semanticscholar   +1 more source

ESA-Ariel Data Challenge NeurIPS 2022: Inferring Physical Properties of Exoplanets From Next-Generation Telescopes [PDF]

open access: yes, 2022
The study of extra-solar planets, or simply, exoplanets, planets outside our own Solar System, is fundamentally a grand quest to understand our place in the Universe.
Al-Refaie, Ahmed F   +13 more
core  

Classifying Exoplanets with Gaussian Mixture Model

open access: yes, 2018
Recently, Odrzywolek and Rafelski (arXiv:1612.03556) have found three distinct categories of exoplanets, when they are classified based on density. We first carry out a similar classification of exoplanets according to their density using the Gaussian ...
Desai, Shantanu, Kulkarni, Soham
core   +1 more source

Enhancing the Google imagery using a wavelet filter [PDF]

open access: yes, 2010
In some previous papers we proposed the use of free software for a processing of the Google satellite imagery. Here we discuss the use of a wavelet filter for the same purposes.
Sparavigna, Amelia Carolina
core   +1 more source

Thermal decomposition as an activity driver of near-Earth asteroid (3200) Phaethon

open access: yes, 2022
Near-Earth asteroid (3200) Phaethon is an active asteroid with a dust tail repeatedly observed over the past decade for 3 days during each perihelion passage down to a heliocentric distance of 0.14 au. The mechanism causing the activity is still debated,
Granvik, Mikael, MacLennan, Eric
core   +1 more source

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