Results 31 to 40 of about 21,448 (215)
Mineral snowflakes on exoplanets and brown dwarfs [PDF]
, 2023 The diversity of exoplanets and brown dwarfs provides ideal atmospheric laboratories to investigate novel physico-chemical regimes. Furthermore, the atmospheres of exoplanets act as the history books of planetary system.
Samra, Dominic Bartholomew Singh
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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 +2 more
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Using dimers to measure biosignatures and atmospheric pressure for terrestrial exoplanets [PDF]
, 2014 We present a new method to probe atmospheric pressure on Earth-like planets using (O-O) dimers in the near-infrared. We also show that dimer features could be the most readily detectable biosignatures for Earth-like atmospheres and may even be detectable
Misra, A. +3 more
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, 2021 Ever since the discovery of the first exoplanet in 1995, more than 4000 exoplanets have been discovered so far. The majority of the exoplanets were discovered by transit and radial velocity methods. And the numbers are only likely to increase prominently,
BSR, Srujith, S., Majal Shiny
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The Detection and Characterization of Extrasolar Planets
Challenges, 2014 We have now confirmed the existence of > 1800 planets orbiting stars other thanthe Sun; known as extrasolar planets or exoplanets. The different methods for detectingsuch planets are sensitive to different regions of parameter space, and so, we are ...
Ken Rice
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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
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Optimization applied to selected exoplanets [PDF]
Journal of Astrophysics and Astronomy, 2021 Transit and radial velocity models were applied to archival data in order to examine exoplanet properties, in particular for the recently discovered super-Earth GJ 357b. There is however considerable variation in estimated model parameters across the literature, and especially their uncertainty estimates.
Shi Yuan Ng +5 more
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A Cubesat Payload for Exoplanet Detection
Sensors, 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
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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 +2 more
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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., +2 more
openaire +3 more sources