Results 31 to 40 of about 507,717 (322)

Stephen Hawking’s Warning on Contacting Aliens: A Physics Perspective on the Intelligence Trap [PDF]

Journal of Biomedical Physics and Engineering
The search for extraterrestrial intelligence is a fascinating and important endeavor, but it raises significant ethical and safety concerns. In the search for extraterrestrial intelligence, scientists use knowledge of physics to identify potential ...
Seyed Mohammad Javad Mortazavi, Joseph John Bevelacqua, Seyed Alireza Mortazavi, Payman Rafiepour, James S Welsh   +4 more
doaj   +1 more source

Constraining the volatile fraction of planets from transit observations [PDF]

, 2016
The determination of the abundance of volatiles in extrasolar planets is very important as it can provide constraints on transport in protoplanetary disks and on the formation location of planets.
Alibert, Yann
core   +2 more sources

The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets [PDF]

, 2017
The California-Kepler Survey (CKS) is an observational program developed to improve our knowledge of the properties of stars found to host transiting planets by NASA’s Kepler Mission.
E. Petigura, A. Howard, G. Marcy, J. Johnson, H. Isaacson, P. Cargile, L. Hebb, B. Fulton, L. Weiss, T. Morton, J. Winn, L. Rogers, E. Sinukoff, L. Hirsch, I. Crossfield   +14 more
semanticscholar   +1 more source

The California-Kepler Survey. V. Peas in a Pod: Planets in a Kepler Multi-planet System Are Similar in Size and Regularly Spaced [PDF]

, 2017
We have established precise planet radii, semimajor axes, incident stellar fluxes, and stellar masses for 909 planets in 355 multi-planet systems discovered by Kepler.
L. Weiss, G. Marcy, E. Petigura, B. Fulton, A. Howard, J. Winn, H. Isaacson, T. Morton, L. Hirsch, E. Sinukoff, A. Cumming, L. Hebb, P. Cargile   +12 more
semanticscholar   +1 more source

Prospects for the characterization of habitable planets

Comptes Rendus. Physique, 2023
With thousands of exoplanets now identified, the characterization of habitable planets and the potential identification of inhabited ones is a major challenge for the coming decades.
Mazevet, Stephane, Affholder, Antonin, Sauterey, Boris, Bixel, Alex, Apai, Daniel, Ferriere, Regis   +5 more
doaj   +1 more source

The GAPS Programme with HARPS-N at TNG - XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets [PDF]

, 2017
We carried out a Bayesian homogeneous determination of the orbital parameters of 231 transiting giant planets (TGPs) that are alone or have distant companions; we employed differential evolution Markov chain Monte Carlo methods to analyse radial-velocity
A. Bonomo, S. Desidera, S. Benatti, F. Borsa, S. Crespi, M. Damasso, A. Lanza, A. Sozzetti, G. Lodato, F. Marzari, C. Boccato, R. Claudi, R. Cosentino, E. Covino, R. Gratton, A. Maggio, G. Micela, E. Molinari, I. Pagano, G. Piotto, E. Poretti, R. Smareglia, L. Affer, K. Biazzo, A. Bignamini, M. Esposito, P. Giacobbe, G. Hébrard, G. Hébrard, L. Malavolta, L. Malavolta, J. Maldonado, L. Mancini, L. Mancini, A. Fiorenzano, S. Masiero, V. Nascimbeni, V. Nascimbeni, M. Pedani, M. Rainer, G. Scandariato   +40 more
semanticscholar   +1 more source

An introductory review of the thermal structure of subduction zones: II—numerical approach and validation

Progress in Earth and Planetary Science, 2023
The thermal structure of subduction zones is fundamental to our understanding of the physical and chemical processes that occur at active convergent plate margins. These include magma generation and related arc volcanism, shallow and deep seismicity, and
Cian R. Wilson, Peter E. van Keken
doaj   +1 more source

Could we identify hot Ocean-Planets with CoRoT, Kepler and Doppler velocimetry? [PDF]

, 2007
Planets less massive than about 10 MEarth are expected to have no massive H-He atmosphere and a cometary composition (50% rocks, 50% water, by mass) provided they formed beyond the snowline of protoplanetary disks.
A. Léger, Alibert, Alonso, B. Chazelas, Baraffe, Baraffe, Barman, Bordé, Bouchy, C. Moutou, C. Sotin, Chassefiére, Cox, D. Despois, D. Ehrenreich, D. Mawet, Di Benedetto, Ehrenreich, F. Bouchy, F. Brachet, F. Selsis, Fortney, Grießmeier, Grießmeier, H. Lammer, J.-M. Grießmeier, J.F. Kasting, Kasting, Kervella, Khodachenko, Kuchner, Lammer, Lovis, Léger, Léger, M. Decaudin, M. Deleuil, M. Ollivier, Mayor, Moutou, O'Donovan, O. Grasset, P. Barge, P. Bordé, Pepe, Press, Protanov, Rafikov, Raymond, Raymond, Raymond, Ribas, Rouan, Santos, Sato, Terada, Tian, Valencia, Vidal-Madjar, Vidal-Madjar, Watson, Wood, Wood, Yelle   +63 more
core   +5 more sources

Multiverse Predictions for Habitability: Number of Potentially Habitable Planets

Universe, 2019
How good is our universe at making habitable planets? The answer to this depends on which factors are important for life: Does a planet need to be Earth mass? Does it need to be inside the temperate zone? are systems with hot Jupiters habitable? Here, we
McCullen Sandora
doaj   +1 more source

Observing the Atmospheres of Known Temperate Earth-sized Planets with JWST [PDF]

, 2017
Nine transiting Earth-sized planets have recently been discovered around nearby late-M dwarfs, including the TRAPPIST-1 planets and two planets discovered by the MEarth survey, GJ 1132b and LHS 1140b. These planets are the smallest known planets that may
C. Morley, L. Kreidberg, Z. Rustamkulov, T. Robinson, J. Fortney   +4 more
semanticscholar   +1 more source