Results 61 to 70 of about 50,289 (239)

Variability of Known Exoplanet Host Stars Observed by TESS

The Astronomical Journal, 2023
Both direct and indirect methods of exoplanet detection rely upon detailed knowledge of the potential host stars. Such stellar characterization allows for accurate extraction of planetary properties, as well as contributing to our overall understanding ...
Emilie R. Simpson, Tara Fetherolf, Stephen R. Kane, Joshua Pepper, Teo Močnik, Paul A. Dalba   +5 more
doaj   +1 more source

Spectroscopic Transit Search: a self-calibrating method for detecting planets around bright stars [PDF]

, 2019
We search for transiting exoplanets around the star $\beta$ Pictoris using high resolution spectroscopy and Doppler imaging that removes the need for standard star observations.
Celeste, Maggie, de Mooij, Ernst, Hooton, Matthew J., Kenworthy, Matthew, Mamajek, Eric E., Ridden-Harper, Andrew R., Sipőcz, Brigitta, Snellen, Ignas. A. G., van Sluijs, Lennart, Wilson, Paul A.   +9 more
core   +3 more sources

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   +6 more sources

The Coming Emptiness: On the Meaning of the Emptiness of the Universe in Natural Philosophy

Philosophies, 2018
The cosmological relevance of emptiness—that is, space without bodies—is not yet sufficiently appreciated in natural philosophy. This paper addresses two aspects of cosmic emptiness from the perspective of natural philosophy: the distances to
Gregor Schiemann
doaj   +1 more source

Classification of Trajectories in a Two-planet Exosystem Using the Generalized Three-body Problem

The Astrophysical Journal, 2023
We deploy the theory of the generalized three-body problem to describe an exosystem composed of a host star, a transiting Jupiter-sized exoplanet, and an Earth-sized exoplanet.
Eman M. Moneer, Fredy L. Dubeibe, Yazan M. Allawi, Meznah M. Alanazi, Tobias C. Hinse, Euaggelos E. Zotos   +5 more
doaj   +1 more source

The LAEX and NASA portals for CoRoT public data [PDF]

, 2009
* Aims. We describe here the main functionalities of the LAEX (Laboratorio de Astrofisica Estelar y Exoplanetas/Laboratory for Stellar Astrophysics and Exoplanets) and NASA portals for CoRoT Public Data.
A. C. Laity, A. N. Payne, A. Velasco, A. Zhang, B. Ali, B. Chan, C. Lau, D. L. McElroy, D. R. Ciardi, E. Solano, Fischer, G. B. Berriman, G. Bryden, Holman, Howell, J. Good, J. R. Stauffer, Jeff, K. von Braun, Kane, L. M. Sarro, M. Abajian, M. García, M. López, M. Schmitz, Mason, O'Donovan, P. L. Wyatt, P. Plavchan, Pepper, Pepper, R. Gutiérrez, Ramirez, S. R. Kane, S. Ramirez, Solano, Tonry, von Braun, von Braun, von Braun   +39 more
core   +2 more sources

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

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

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

Exoplanet interiors and habitability [PDF]

Advances in Physics: X, 2019
More than 1000 exoplanets with a radius smaller than twice that of the Earth are currently known, mainly thanks to space missions dedicated to the search of exoplanets. Mass and radius estimates, which are only available for a fraction (∼ 10%) of the exoplanets, provide an indication of the bulk composition and interior structure and show that the ...
Hoolst, Tim Van, Noack, Lena, Rivoldini, Attilio   +2 more
openaire   +4 more sources