Results 31 to 40 of about 48,294 (236)

Habitable Zones in Binary Star Systems: A Zoology

Galaxies, 2020
Several concepts have been brought forward to determine where terrestrial planets are likely to remain habitable in multi-stellar environments. Isophote-based habitable zones, for instance, rely on insolation geometry to predict habitability, whereas ...
Siegfried Eggl, Nikolaos Georgakarakos, Elke Pilat-Lohinger   +2 more
doaj   +1 more source

The Astrobiology of Alien Worlds: Known and Unknown Forms of Life

Universe, 2020
Most definitions of life assume that, at a minimum, life is a physical form of matter distinct from its environment at a lower state of entropy than its surroundings, using energy from the environment for internal maintenance and activity, and capable of
Louis N. Irwin, Dirk Schulze-Makuch
doaj   +1 more source

Exoplanet albedo spectra and colors as a function of planet phase, separation, and metallicity [PDF]

, 2010
First generation optical coronagraphic telescopes will obtain images of cool gas and ice giant exoplanets around nearby stars. The albedo spectra of exoplanets at planet-star separations larger than about 1 AU are dominated by reflected light to beyond 1
Ackerman, Alibert, Beichman, Boss, Brown, Burrows, Burrows, Burrows, Chapman, Chapman, Conrath, Dlugach, Dodson-Robinson, Dyudina, Fortney, Fortney, Fortney, Fortney, Fortney, Fortney, Freedman, Gautier, Gautier, Guillot, Guillot, Guyon, Ida, Jonathan J. Fortney, Kasdin, Kerri L. Cahoy, Kratter, Kuchner, Lafreniere, Liou, Lodders, Lodders, Lodders, Mark S. Marley, Marley, Marley, Marley, Marley, Marois, Mawet, Mihilas, Rauscher, Saumon, Saumon, Seager, Sobolev, Spiegel, Stephens, Sudarsky, Sudarsky, Sudarsky, Traub, Veras, West, Zahnle   +58 more
core   +2 more sources

The Habitability of the Galactic Bulge

Life, 2020
We present a new investigation of the habitability of the Milky Way bulge, that expands previous studies on the Galactic Habitable Zone. We discuss existing knowledge on the abundance of planets in the bulge, metallicity and the possible frequency of ...
Amedeo Balbi, Maryam Hami, Andjelka Kovačević   +2 more
doaj   +1 more source

Exoplanet Catalogues

, 2018
One of the most exciting developments in the field of exoplanets has been the progression from 'stamp-collecting' to demography, from discovery to characterisation, from exoplanets to comparative exoplanetology. There is an exhilaration when a prediction
A Wolszczan, BT Montet, CJ Burke, Eunkyu Han, J Eastman, J. Schneider, Jason F. Rowe, Jeffrey L. Coughlin, John Southworth, John Southworth, John Southworth, JT Wright, M Mayor, PW Sullivan, RL Akeson, RP Butler, SR Kane, Stanislav Poddaný, Susan E. Thompson, T Mazeh, WJ Borucki   +20 more
core   +1 more source

Evolution of Exoplanets and their Parent Stars [PDF]

, 2013
Studying exoplanets with their parent stars is crucial to understand their population, formation and history. We review some of the key questions regarding their evolution with particular emphasis on giant gaseous exoplanets orbiting close to solar-type ...
Guillot, Tristan, Havel, Mathieu, Lin, Douglas N. C., Morel, Pierre, Parmentier, Vivien   +4 more
core   +4 more sources

Habitability of Super-Earths: Gliese 581c and 581d

, 2008
The unexpected diversity of exoplanets includes a growing number of super-Earth planets, i.e., exoplanets with masses smaller than 10 Earth masses. Unlike the larger exoplanets previously found, these smaller planets are more likely to have a similar ...
C. Bounama, M. Cuntz, S. Franck, Udry, Von Bloh, W. von Bloh   +5 more
core   +1 more source

CD-HPF: New Habitability Score Via Data Analytic Modeling

, 2016
The search for life on the planets outside the Solar System can be broadly classified into the following: looking for Earth-like conditions or the planets similar to the Earth (Earth similarity), and looking for the possibility of life in a form known or
Agrawal, Surbhi, Bora, Kakoli, Narasimhamurthy, Anand, Routh, Swati, Safonova, Margarita, Saha, Snehanshu   +5 more
core   +1 more source

Is there an exoplanet in the Solar system? [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2016
Abstract We investigate the prospects for the capture of the proposed Planet 9 from other stars in the Sun's birth cluster. Any capture scenario must satisfy three conditions: the encounter must be more distant than ∼150 au to avoid perturbing the Kuiper belt; the other star must have a wide-orbit planet (a ≳ 100 au); the planet must be ...
Mustill, Alexander J.,, Raymond, Sean N., Davies, Melvyn B.,   +2 more
openaire   +3 more sources

VISIBLE AND INFRARED TELESCOPES IN DETECTION OF EARTH-LIKE EXOPLANETS

Radio Physics and Radio Astronomy, 2016
Object and purpose: The study examines the balance of resolving and light-harvesting (penetrating) abilities of filled and sparse aperture telescopes in direct detection of terrestrial exoplanets.
A. D. Yegorov, V. A. Yegorov, S. A. Yegorov, L. I. Yelenskaya, I. Ye. Sinel’nikov   +4 more
doaj   +1 more source