Results 21 to 30 of about 44,852 (244)

The Peak Absorbance Wavelength of Photosynthetic Pigments Around Other Stars From Spectral Optimization

open access: yesFrontiers in Astronomy and Space Sciences, 2021
In the search for life on other planets, the presence of photosynthetic surface vegetation may be detectable from the colors of light it reflects. On the modern Earth, this spectral reflectance is characterized by a steep increase in reflectance between ...
Owen R. Lehmer   +5 more
doaj   +1 more source

Efficient metal emissions in the upper atmospheres of close-in exoplanets

open access: yesEarth and Planetary Physics, 2018
Atmospheric escape is a key process controlling the long term evolution of planets. Radiative cooling competes for energy against atmospheric escape in planetary upper atmospheres.
Lei Liu, Feng Tian
doaj   +1 more source

Ultra-High Pressure Dynamic Compression of Geological Materials

open access: yesFrontiers in Earth Science, 2019
Dynamic-compression experiments on geological materials are important for understanding the composition and physical state of the deep interior of the Earth and other planets.
Thomas S. Duffy, Raymond F. Smith
doaj   +1 more source

Exploring and Validating Exoplanet Atmospheric Retrievals with Solar System Analog Observations

open access: yesThe Planetary Science Journal, 2023
Solar system observations that serve as analogs for exoplanet remote sensing data can provide important opportunities to validate ideas and models related to exoplanet environments.
Tyler D. Robinson, Arnaud Salvador
doaj   +1 more source

Semi-Analytical Search for Sun-Synchronous and Planet Synchronous Orbits around Jupiter, Saturn, Uranus and Neptune

open access: yesMathematics, 2022
With the development of aerospace science and technology, more and more probes are expected to be deployed around extraterrestrial planets. In this paper, some special orbits around Jupiter, Saturn, Uranus, and Neptune are discussed and analyzed.
Biao Yang   +7 more
doaj   +1 more source

Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems [PDF]

open access: yes, 2006
We present results of a reconnaissance for stellar companions to all 131 radial-velocity-detected candidate extrasolar planetary systems known as of July 1, 2005.
Beaulieu, Thom D.   +6 more
core   +2 more sources

Detecting exoplanets with FAST? [PDF]

open access: yesResearch in Astronomy and Astrophysics, 2019
6 pages, 3 figures, published in the mini-volume on FAST science potentials in the journal Research in Astronomy and ...
Zarka, Philippe   +7 more
openaire   +6 more sources

Application of transit timing variation method (TTV) to exoplanet system TrES-3

open access: yesВісник Астрономічної школи, 2015
On the basis of the original photometric data, the light curves of several transits in the exoplanet system TrES-3 were simulated by Monte Carlo method. Using these curves, the estimates of precise values of mid-transit time were calculated to assess the
Yu. Kuznyetsova   +4 more
doaj   +1 more source

Revisiting the Planet Mass and Stellar Metallicity Relation for Low-Mass Exoplanets Orbiting GKM Class Stars

open access: yesUniverse, 2021
The growing database of exoplanets has shown us the statistical characteristics of various exoplanet populations, providing insight towards their origins.
Jonathan H. Jiang   +4 more
doaj   +1 more source

Simultaneous characterization of the atmospheres, surfaces, and exomoons of nearby rocky exoplanets

open access: yesEarth and Planetary Physics, 2018
Atmospheric composition is an important indicator of habitability and life. The presence or absence of a large exomoon around an Earth-size exoplanet could have important consequences for planet climate stability.
WenLiang Cui   +6 more
doaj   +1 more source

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