Results 31 to 40 of about 54,418 (256)

Imaging low-mass planets within the habitable zone of α Centauri

open access: yesNature Communications, 2021
Imaging of low-mass exoplanets can be achieved once the thermal background in the mid-infrared (MIR) wavelengths can be mitigated. Here, the authors present a ground-based MIR observing approach enabling imaging low-mass temperate exoplanets around ...
K. Wagner   +41 more
doaj   +1 more source

Relation between Brown Dwarfs and Exoplanets [PDF]

open access: yes, 2016
One of the most debated subjects in Astronomy since the discovery of exoplanets is how can we distinguish the most massive of such objects from very-low mass stars like Brown Dwarfs (BDs)?
Caretta, César A.   +4 more
core   +2 more sources

Relationship between Luminosity, Irradiance and Temperature of star on the orbital parameters of exoplanets

open access: yesEPJ Web of Conferences, 2013
For 759 exoplanets detected by radial velocities method we found that distances of exoplanets from central star comply in general Schmidt law and these distances depend on the stellar surface temperature.
Pavel Pintr
doaj   +1 more source

A Cubesat Payload for Exoplanet Detection

open access: yesSensors, 2017
The search for undiscovered planets outside the solar system is a scientific topic that is rapidly spreading into the astrophysical and engineering communities. In this framework, the design of an innovative payload to detect exoplanets from a nano-sized
Marcella Iuzzolino   +5 more
doaj   +1 more source

Characterizing exoplanets [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
International ...
Miller, Steve   +3 more
openaire   +2 more sources

Robo-AO and SOAR High-Resolution Surveys of Exoplanet Hosting Stars

open access: yesFrontiers in Astronomy and Space Sciences, 2021
In the past decade, space-based transit surveys have delivered thousands of potential planet-hosting systems. Each of these needs to be vetted and characterized using follow-up high-resolution imaging.
Carl Ziegler   +4 more
doaj   +1 more source

Heavy Metal Rules. I. Exoplanet Incidence and Metallicity

open access: yesGeosciences, 2019
The discovery of only a handful of exoplanets required establishing a correlation between giant planet occurrence and metallicity of their host stars.
Vardan Adibekyan
doaj   +1 more source

Effect of the exoplanet magnetic field topology on its magnetospheric radio emission [PDF]

open access: yesA&A, Forthcoming article, 2018, 2018
The magnetized wind from stars that impact exoplanets should lead to radio emissions. According to the scaling laws derived in the solar system, the radio emission should depend on the stellar wind, interplanetary magnetic field, and topology of the exoplanet magnetosphere. The aim of this study is to calculate the dissipated power and subsequent radio
arxiv   +1 more source

A New Method For Studying Exoplanet Atmospheres Using Planetary Infrared Excess [PDF]

open access: yesApJL 898 L35 (2020), 2020
To date, the ability for observers to reveal the composition or thermal structure of an exoplanet's atmosphere has rested on two techniques: high-contrast direct imaging and time-series observations of transiting exoplanets. The former is currently limited to characterizing young, massive objects while the latter requires near 90 degree orbital ...
arxiv   +1 more source

The Origin of the Exoplanets [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 2010
We explore two ways in which objects of planetary masses can form. One is in disk systems like the solar system. The other is in dense clusters where stars and brown dwarfs form. We do not yet have the instrumental accuracy to detect multiplanet systems with masses like those in solar system; with our present technology from a distant site, only the ...
openaire   +4 more sources

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