Results 21 to 30 of about 39,453 (210)

Vlasov methods in space physics and astrophysics [PDF]

Living Reviews in Computational Astrophysics, 2018
This paper reviews Vlasov-based numerical methods used to model plasma in space physics and astrophysics. Plasma consists of collectively behaving charged particles that form the major part of baryonic matter in the Universe.
M. Palmroth, U. Ganse, Y. Pfau‐Kempf, M. Battarbee, L. Turc, T. Brito, M. Grandin, S. Hoilijoki, A. Sandroos, S. von Alfthan   +9 more
semanticscholar   +2 more sources

High precision astrometry mission for the detection and characterization of nearby habitable planetary systems with the Nearby Earth Astrometric Telescope (NEAT) [PDF]

Experimental astronomy (Print), 2011
A complete census of planetary systems around a volume-limited sample of solar-type stars (FGK dwarfs) in the Solar neighborhood (d ≤ 15 pc) with uniform sensitivity down to Earth-mass planets within their Habitable Zones out to several AUs would be a ...
F. Malbet, A. Léger, M. Shao, R. Goullioud, P. Lagage, Anthony G. A. Brown, C. Cara, G. Durand, C. Eiroa, P. Feautrier, B. Jakobsson, E. Hinglais, L. Kaltenegger, L. Labadie, A. Lagrange, J. Laskar, R. Liseau, J. Lunine, J. Maldonado, M. Mercier, C. Mordasini, D. Queloz, A. Quirrenbach, A. Sozzetti, W. Traub, O. Absil, Y. Alibert, A. Andrei, Frédéric Arenou, C. Beichman, A. Chelli, C. Cockell, G. Duvert, T. Forveille, P. Garcia, D. Hobbs, A. Krone-Martins, H. Lammer, N. Meunier, S. Minardi, André Moitinho de Almeida, N. Rambaux, S. Raymond, H. Röttgering, J. Sahlmann, P. Schuller, D. Ségransan, F. Selsis, J. Surdej, E. Villaver, G. White, H. Zinnecker   +51 more
semanticscholar   +2 more sources

Transmission Spectroscopy of the Earth–Sun System to Inform the Search for Extrasolar Life [PDF]

, 2021
Upcoming NASA astrophysics missions such as the James Webb Space Telescope will search for signs of life on planets transiting nearby stars. Doing so will require coadding dozens of transmission spectra to build up sufficient signal to noise while ...
L. Mayorga, J. Lustig-Yaeger, E. May, K. Sotzen, Junellie Gonzalez-Quiles, B. Kilpatrick, E. Martin, K. Mandt, K. Stevenson, N. Izenberg   +9 more
semanticscholar   +1 more source

Open Letter to the Pontiff and Vatican Cardinals on Pervasively Corrupt Earth, Planetary, and Astrophysical Science

Advances in Social Sciences Research Journal, 2023
Five hundred years ago the Roman Catholic Church wrongly opposed science. In my fifty years as a scientist, I have observed the Catholic Church reaching out to science, wholly unaware of widespread corruption and cartel-like behavior under guise of science, which leads, I allege, to the Vatican aiding and abetting activities that are not only anti ...
openaire   +1 more source

Venus as an anchor point for planetary habitability [PDF]

Nature Astronomy
A major focus of the planetary science and astrobiology community is the understanding of planetary habitability, including the myriad factors that control the evolution and sustainability of temperate surface environments such as that of Earth.
Stephen R. Kane, Paul K. Byrne
semanticscholar   +1 more source

Taking the Measure of the Universe: Precision Astrometry with SIM PlanetQuest [PDF]

, 2007
Precision astrometry at microarcsecond accuracy has application to a wide range of astrophysical problems. This paper is a study of the science questions that can be addressed using an instrument that delivers parallaxes at about 4 microarcsec on targets
Alan L. Fey, Andreas Quirrenbach, Andrew P. Gould, Angelle M. Tanner, Ann E. Wehrle, Bahcall J., Baraffe I., Bisikalo D. V., Bouvier J., Bouvier J., Brian C. Chaboyer, Caldwell J. A. R., Carl Grillmair, Catanzarite J. H., Chaboyer B., Charles A. Beichman, Christopher R. Gelino, Ciardi D. R., David Boboltz, David L. Meier, David R. Ciardi, Dayton L. Jones, Debra A. Fischer, Duquennoy A., Edward J. Shaya, Feast M., Fey A. L., Franciosini E., Geoffrey W. Marcy, Gliese W., Guy Worthey, Herrero A., Herrero A., Hog E., Ibata R. A., Jo Eliza Pitesky, John A. Tomsick, Joseph H. Catanzarite, Kathryn V. Johnston, Kenneth J. Johnston, Kovalevsky J., Krolik J., Kroupa P., Laney C. D., Laskin R. A., Lestrade, Louis E. Strigari, Luyten W. J., Lynden-Bell D., Lynden-Bell D., Lynden-Bell D., Mayor M., McKee C., Mekkaden M. V., Merritt D., Michael Shao, Nicholas M. Law, Pakzad S. L., Pan X., Pan X., Peebles P. J. E., Pont F., Pont F., Refsdal S., Richard J. Patterson, Rob P. Olling, Ronald J. Allen, Schaller G., Schussler M., Schweickhardt J., Shakura N. I., Shrinivas R. Kulkarni, Stephen C. Unwin, Stephen J. Edberg, Steven R. Majewski, Strassmeier K. G., Stuart B. Shaklan, Szabados L., Todd J. Henry, Tomsick J. A., Unwin S. C., Valeri V. Makarov, Will C. M., Xiaopei Pan   +83 more
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Bayesian analysis of interiors of HD 219134b, Kepler-10b, Kepler-93b, CoRoT-7b, 55 Cnc e, and HD 97658b using stellar abundance proxies [PDF]

, 2016
Using a generalized Bayesian inference method, we aim to explore the possible interior structures of six selected exoplanets for which planetary mass and radius measurements are available in addition to stellar host abundances: HD~219134b, Kepler-10b ...
Dorn, C., Hinkel, N. R., Venturini, J.
core   +2 more sources

The formation of Jupiter by hybrid pebble-planetesimal accretion [PDF]

, 2018
The standard model for giant planet formation is based on the accretion of solids by a growing planetary embryo, followed by rapid gas accretion once the planet exceeds a so-called critical mass.
Alibert, Yann, Ataiee, Sareh, Benz, Willy, Burn, Remo, Helled, Ravit, Mayer, Lucio, Mordasini, Christoph, Quanz, Sascha P., Schönbächler, Maria, Senecal, Luc, Venturini, Julia   +10 more
core   +2 more sources

The Search for Other Planets and Life [PDF]

, 2010
This Les Houches School offers students a wide ranging view of the field of exoplanets and the search for life beyond the solar system. Observational and theoretical opportunities abound in a new field of astronomy that will be growing for decades to ...
Bean, Bennett, Bodenheimer, Boss, Burrows, Butler, Cash, Ch. Beichman, Charbonneau, Charbonneau, Chauvin, Chih-Hao, Deming, Des Marais, Fischer, Fridlund, Gaudi, Geisler, Gould, Ida, Ida, Johnson, Konacki, Lawson, Mao, Mayor, Nordman, Perryman, Richalet, Richardson, Saumon, Seager, Swain, Tanner, Tanner, Tarter, Traub, Trauger, Udry, Unwin, Wolsczan, Woolf, Wright   +42 more
core   +1 more source

Super-Earth of 8 M⊕ in a 2.2-day orbit around the K5V star K2-216 [PDF]

Astronomy & Astrophysics, 2018
Context. Although thousands of exoplanets have been discovered to date, far fewer have been fully characterised, in particular super-Earths. The KESPRINT consortium identified K2-216 as a planetary candidate host star in the K2 space mission Campaign 8 ...
C. Persson, M. Fridlund, O. Barrag'an, F. Dai, D. Gandolfi, A. Hatzes, T. Hirano, S. Grziwa, J. Korth, J. Prieto-Arranz, L. Fossati, V. V. Eylen, A. B. Justesen, J. Livingston, D. Kubyshkina, H. Deeg, E. Guenther, G. Nowak, J. Cabrera, P. Eigmüller, S. Csizmadia, Andra M. Smith, A. Erikson, S. Albrecht, A. Sobrino, W. Cochran, M. Endl, Massimiliano Esposito, A. Fukui, P. Heeren, D. Hidalgo, M. Hjorth, M. Kuzuhara, N. Narita, D. Nespral, E. Pallé, M. Pätzold, H. Rauer, F. Rodler, J. Winn   +39 more
semanticscholar   +1 more source