Results 31 to 40 of about 46,669 (261)

Exoplanets around Red Giants: Distribution and Habitability

Galaxies, 2023
As the search for exoplanets continues, more are being discovered orbiting Red Giant stars. We use current data from the NASA Exoplanet Archive to investigate planet distribution around Red Giant stars and their presence in the host’s habitable zone.
Ruixuan E. Chen, Jonathan H. Jiang, Philip E. Rosen, Kristen A. Fahy, Yanbei Chen   +4 more
doaj   +1 more source

Simulating asteroid impacts and meteor events by high-power lasers: from the laboratory to spaceborne missions

Frontiers in Astronomy and Space Sciences, 2023
Meteor plasmas and impact events are complex, dynamic natural phenomena. Simulating these processes in the laboratory is, however, a challenge. The technique of laser induced dielectric breakdown was first used for this purpose almost 50 years ago. Since
Martin Ferus, Antonín Knížek, Antonín Knížek, Giuseppe Cassone, Paul B. Rimmer, Hitesh Changela, Elias Chatzitheodoridis, Inna Uwarova, Ján Žabka, Petr Kabáth, Franz Saija, Homa Saeidfirozeh, Libor Lenža, Miroslav Krůs, Lukáš Petera, Lukáš Petera, Lukáš Nejdl, Petr Kubelík, Anna Křivková, Anna Křivková, David Černý, Martin Divoký, Michael Pisařík, Tomáš Kohout, Tomáš Kohout, Lakshika Palamakumbure, Barbora Drtinová, Klára Hlouchová, Nikola Schmidt, Zita Martins, Jorge Yáñez, Svatopoluk Civiš, Pavel Pořízka, Tomáš Mocek, Jona Petri, Sabine Klinkner   +35 more
doaj   +1 more source

Five Key Exoplanet Questions Answered via the Analysis of 25 Hot-Jupiter Atmospheres in Eclipse [PDF]

Astrophysical Journal Supplement Series, 2022
Population studies of exoplanets are key to unlocking their statistical properties. So far, the inferred properties have been mostly limited to planetary, orbital, and stellar parameters extracted from, e.g., Kepler, radial velocity, and Gaia data.
Q. Changeat, B. Edwards, A. Alrefaie, A. Tsiaras, J. W. Skinner, J. Cho, Kai H. Yip, Lara O. Anisman, M. Ikoma, M. Bieger, O. Venot, S. Shibata, I. Waldmann, G. Tinetti   +13 more
semanticscholar   +1 more source

Exoplanet characterization using conditional invertible neural networks [PDF]

, 2023
Context. The characterization of the interior of an exoplanet is an inverse problem. The solution requires statistical methods such as Bayesian inference.
Ralf S. Klessen, Ksoll, Victor, Alibert, Yann, Daniel Walter, Willy Benz, Walter, Daniel, Benz, Willy, Ardizzone, Lynton, Ullrich Koethe, Haldemann, Jonas, Victor Ksoll, Jonas Haldemann, Rother, Carsten, Yann Alibert, Lynton Ardizzone, Carsten Rother, Klessen, Ralf S., Koethe, Ullrich, R.S. Klessen, U. Koethe, C. Rother, W. Benz, L. Ardizzone, Y. Alibert, V. Ksoll, J. Haldemann, D. Walter   +26 more
core   +2 more sources

exoplanet-dev/exoplanet: exoplanet v0.4.5

, 2021
0.5.0 (2021-05-04) Adds high-level, pure-Theano/Aesara implementation of RegularGridInterpolator to replace compiled version #167 Moves compiled Ops to exoplanet-core making exoplanet a pure-Python package #171 Moves ReboundOp and ReboundOrbit to ...
emilygilbert, Dan Foreman-Mackey, Eric Agol, Christina Hedges, Tom Barclay, Ian Czekala, Luke Bouma, Rodrigo Luger, Adrian Price-Whelan, Timothy D Brandt, Arjun Savel   +10 more
core   +1 more source

Analysis of a JWST NIRSpec Lab Time Series: Characterizing Systematics, Recovering Exoplanet Transit Spectroscopy, and Constraining a Noise Floor [PDF]

Astrophysical Journal Letters, 2022
The James Webb Space Telescope’s (JWST) NIRSpec instrument will unveil the nature of exoplanet atmospheres across the wealth of planet types, from temperate terrestrial worlds to ultrahot Jupiters.
Z. Rustamkulov, D. Sing, Rong-Rong Liu, Ashley Wang   +3 more
semanticscholar   +1 more source

The Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope. IV. Capabilities and predicted performance for exoplanet characterization [PDF]

Astronomy & Astrophysics, 2022
The Near-Inrared Spectrograph (NIRSpec) on the James Webb Space Telescope (JWST) is a very versatile instrument, offering multiobject and integral field spectroscopy with varying spectral resolution ($\sim$30 to $\sim$3000) over a wide wavelength range ...
S. Birkmann, P. Ferruit, G. Giardino, L. Nielsen, A. G. Munoz, S. Kendrew, B. Rauscher, T. L. Beck, C. Keyes, J. Valenti, P. Jakobsen, B. Dorner, C. A. de Oliveira, S. Arribas, T. Boker, A. Bunker, S. Charlot, G. de Marchi, N. Kumari, M. López-Caniego, N. Lutzgendorf, R. Maiolino, E. Manjavacas, A. Marston, S. Moseley, N. Prizkal, C. Proffitt, T. Rawle, H. Rix, M. Plate, E. Sabbi, M. Sirianni, C. Willott, P. Zeidler   +33 more
semanticscholar   +1 more source

Transiting Exoplanet Survey Satellite (TESS) [PDF]

Astronomical Telescopes and Instrumentation, 2014
The Transiting Exoplanet Survey Satellite (TESS ) will search for planets transiting bright and nearby stars. TESS has been selected by NASA for launch in 2017 as an Astrophysics Explorer mission. The spacecraft will be placed into a highly elliptical 13.
G. Ricker, J. Winn, R. Vanderspek, David W. Latham, G. Bakos, J. Bean, Z. Berta-Thompson, T. Brown, L. Buchhave, N. Butler, R. Butler, W. Chaplin, D. Charbonneau, J. Christensen-Dalsgaard, M. Clampin, D. Deming, J. Doty, N. De Lee, C. Dressing, E. Dunham, M. Endl, F. Fressin, J. Ge, T. Henning, M. Holman, Andrew W. Howard, S. Ida, Jon M. Jenkins, G. Jernigan, J. Johnson, L. Kaltenegger, N. Kawai, H. Kjeldsen, G. Laughlin, A. Levine, D. Lin, J. Lissauer, P. MacQueen, G. Marcy, P. McCullough, T. Morton, N. Narita, M. Paegert, E. Pallé, F. Pepe, J. Pepper, A. Quirrenbach, Stephen A. Rinehart, D. Sasselov, B. Sato, S. Seager, A. Sozzetti, K. Stassun, P. Sullivan, A. Szentgyorgyi, G. Torres, S. Udry, J. Villasenor   +57 more
semanticscholar   +1 more source

The case and context for atmospheric methane as an exoplanet biosignature [PDF]

Proceedings of the National Academy of Sciences of the United States of America, 2022
Significance Astronomers will soon begin searching for biosignatures, atmospheric gases or surface features produced by life, on potentially habitable planets.
M. Thompson, J. Krissansen-Totton, Nicholas F. Wogan, M. Telus, J. Fortney   +4 more
semanticscholar   +1 more source

Semi-Analytical Search for Sun-Synchronous and Planet Synchronous Orbits around Jupiter, Saturn, Uranus and Neptune

Mathematics, 2022
With the development of aerospace science and technology, more and more probes are expected to be deployed around extraterrestrial planets. In this paper, some special orbits around Jupiter, Saturn, Uranus, and Neptune are discussed and analyzed.
Biao Yang, Yu Jiang, Hengnian Li, Chunsheng Jiang, Yongjie Liu, Chaojin Zhan, Hongbao Jing, Yake Dong   +7 more
doaj   +1 more source