Results 51 to 60 of about 44,852 (244)

Extrasolar planets in stellar multiple systems

, 2012
Analyzing exoplanets detected by radial velocity or transit observations, we determine the multiplicity of exoplanet host stars in order to study the influence of a stellar companion on the properties of planet candidates.
A. Seifahrt, Anglada-Escudé, Bakos, Bakos, Beuermann, Bouchy, Burke, Butler, Butler, Butler, Butler, Butler, Campbell, Chauvin, Chauvin, Chauvin, Cochran, Correia, Daemgen, Dai, Desidera, Desidera, Dommanget, Doyle, Dumusque, Duquennoy, Eggenberger, Eggenberger, Eggenberger, Fischer, Fischer, Fischer, Fischer, Fischer, Fischer, Fischer, Forveille, Ginski, Guenther, Han, Hatzes, Hinse, Holman, Howard, Høg, Johnson, Jones, Jones, Kharchenko, Korzennik, Latham, Lee, Liu, Lo Curto, Lo Curto, Lovis, Lowrance, M. Mugrauer, Marcy, Marcy, Marcy, Marcy, Mayor, McAlister, McArthur, Mordasini, Moutou, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Muterspaugh, Naef, Naef, Naef, Naef, Neuhäuser, Patience, Pont, Porto de Mello, Potter, Qian, Qian, Queloz, Queloz, R. Neuhäuser, Raghavan, Raghavan, Reffert, Roeser, Santos, Schneider, T. Roell, Tinney, Udry, Vogt, Vogt, Zacharias, Zacharias, Zucker, Zucker, Zucker   +106 more
core   +1 more source

Gliese 581g as a scaled-up version of Earth: atmospheric circulation simulations

, 2011
We use three-dimensional simulations to study the atmospheric circulation on the first Earth-sized exoplanet discovered in the habitable zone of an M star.
Anderson, Charbonneau, Cho, Cho, Cooper, Cooper, Cowan, Dvorak, Edwards, Edwards, Fraser, Gold, Gordon, Held, Heng, Joshi, Joshi, Kevin Heng, Kraucunas, Lammer, Mayor, Menou, Merlis, Mitchell, Peixóto, Pierrehumbert, Roeckner, Saravanan, Scalo, Selsis, Shapiro, Shell, Showman, Showman, Smagorinsky, Smagorinsky, Snellen, Stauffer, Stephenson, Steven S. Vogt, Suarez, Tarter, Thrastarson, Vallis, Vogt, Washington, Watkins, Wordsworth, Wordsworth   +48 more
core   +1 more source

Distinguishing multicellular life on exoplanets by testing Earth as an exoplanet [PDF]

International Journal of Astrobiology, 2020
AbstractCan multicellular life be distinguished from single cellular life on an exoplanet? We hypothesize that abundant upright photosynthetic multicellular life (trees) will cast shadows at high sun angles that will distinguish them from single cellular life and test this using Earth as an exoplanet.
Christopher E. Doughty, Andrew J. Abraham, James Windsor, Michael Mommert, Michael Gowanlock, Tyler Robinson, David E. Trilling   +6 more
openaire   +6 more sources

Photosynthesis in Hydrogen-Dominated Atmospheres

Life, 2014
The diversity of extrasolar planets discovered in the last decade shows that we should not be constrained to look for life in environments similar to early or present-day Earth.
William Bains, Sara Seager, Andras Zsom
doaj   +1 more source

Kepler Observations of Three Pre-Launch Exoplanet Candidates: Discovery of Two Eclipsing Binaries and a New Exoplanet

, 2010
Three transiting exoplanet candidate stars were discovered in a ground-based photometric survey prior to the launch of NASA's {\it Kepler} mission. {\it Kepler} observations of them were obtained during Quarter 1 of the {\it Kepler} mission.
Bryson, Stephen T., Ciardi, David R., Feldmeier, John J., Horch, Elliott, Howell, Steve B., Rowe, Jason F., Sherry, William, van Belle, Gerard T., von Braun, Kaspar   +8 more
core   +1 more source

Research Progress on Atmospheric Turbulence Perception and Correction Based on Adaptive Optics and Deep Learning

Advanced Photonics Research, EarlyView.
This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu, Yihang Di, Mengmeng Zhang, Zhenbo Ren, Jianglei Di, Jianlin Zhao   +5 more
wiley   +1 more source

Emergent Exoplanet Flux: Review of the Spitzer Results [PDF]

, 2008
Observations using the Spitzer Space Telescope provided the first detections of photons from extrasolar planets. Spitzer observations are allowing us to infer the temperature structure, composition, and dynamics of exoplanet atmospheres.
Bouchy, Charbonneau, Demory, Drake Deming, Gillon, Morales-Calderon, Showman   +6 more
core   +1 more source

Zehn Jahre Gaia‐Messungen: Die hochgenaue Kartierung des Himmels

Physik in unserer Zeit, EarlyView.
Das astrometrische Weltraumobservatorium Gaia der Europäischen Weltraumorganisation hat die astrometrische Forschung revolutioniert, indem es unter anderem präzise Positionen, Bewegungen und Entfernungen von fast zwei Milliarden Himmelsobjekten gemessen hat. Damit stellt es wertvolle Daten für fast alle Gebiete der Astrophysik bereit. Nach dem Ende der
Stefan Jordan
wiley   +1 more source

Density of Exoplanets

, 2021
The internal structure of any planet is the result of its composition, radiation environment and age. Exoplanet interiors are hidden worlds that we are offered a glimpse into via the measurements of the most fundamental planet parameters; radius and mass. With this knowledge, we can distinguish rocky Earth-like planets from gaseous giants.
openaire   +2 more sources

Molecular opacities for exoplanets [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
Spectroscopic observations of exoplanets are now possible by transit methods and direct emission. Spectroscopic requirements for exoplanets are reviewed based on existing measurements and model predictions for hot Jupiters and super-Earths.
Peter F. Bernath, Peter F. Bernath
openaire   +4 more sources