Results 61 to 70 of about 182,451 (170)
Single-mode fiber length for wavefront filtering
, 2008 Stellar nulling interferometry offers the possibility of direct imaging of extrasolar planets necessary for the detection of extra-terrestrial life. Achieving optimum performance from the interferometers requires that the wavefronts of light reaching the
Dasgupta, Sonali +2 more
core +1 more source
Spectroscopic Monitoring of Metal Lines in Polluted White Dwarfs
The Astrophysical JournalThe disruption and accretion of planetary material onto white dwarfs are expected to be inherently dynamic and stochastic, potentially driving variability in the accretion rate and therefore the shape and depth of the photospheric metal absorption lines.
Laura K. Rogers +14 more
doaj +1 more source
Life at the end of worlds : modelling the biosignatures of microbial life in diverse environments at the end of the habitable lifetimes of Earth-like planets [PDF]
, 2014 This thesis investigates how increased global mean temperatures on Earth, induced by the increase in the luminosity of the Sun as it ages, change the types of habitable environments on the planet at local scales over the next 3 Gyr.
O'Malley-James, Jack T.
core +1 more source
Mass–Radius Relationships and Contraction of Condensed Planets by Cooling or Despinning
The Astrophysical JournalCondensed planets contract or expand as their temperature changes. With the exception of the effect of phase changes, this phenomenon is generally interpreted as being solely related to the thermal expansivity of the planet’s components. However, changes
Yanick Ricard, Frédéric Chambat
doaj +1 more source
The Astrophysical JournalUnderstanding the surface temperature and interior structure of cold-to-temperate sub-Neptunes is critical for assessing their habitability, yet direct observations are challenging.
Ziyu Huang +7 more
doaj +1 more source
Characterization of Extrasolar Planets Using SOFIA [PDF]
, 2010 Topics include: the landscape of extrasolar planets, why focus on transiting planets, some history and Spitzer results, problems in atmospheric structure or hot Jupiters and hot super Earths, what observations are needed to make progress, and what SOFIA ...
Deming, Drake
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The Effect of Guide Star Variability on PLATO Pointing Stability
The Astronomical JournalThe main science goal of the PLAnetary Transits and Oscillations of stars (PLATO) is to detect and characterize extrasolar planets, including terrestrial planets in the habitable zone (HZ) of their host stars.
Sam Bowling +8 more
doaj +1 more source
Unveiling the Interior Structure and Thermal Evolution of Super-Earth GJ 486b
The Astrophysical JournalRecent ground- and space-based surveys have shown that planets between Earth and Neptune in size, known as “super-Earths,” are among the most frequently found planets in the Galaxy. Although the JWST era has provided high-quality atmospheric data on many
Chandan K. Sahu +3 more
doaj +1 more source
, 2017 Discoveries done during the last two decades have revealed the impressive diversity of extrasolar planetary systems. A diversity challenging our understanding of mechanisms of formation and evolution.
Mayor, Michel
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Mass – Radius Relationship in Extrasolar Planets [PDF]
, 2011 The increasing number of Extrasolar planets observed in the last years makes important to define, as soon as possible, a mass – radius relationship, and so, we adjusted an planetary constitution independent experimental equation.
Bezzeghoud, Mourad +3 more
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