Results 31 to 40 of about 2,361 (128)

Prehistory of Transit Searches

, 2018
Nowadays the more powerful method to detect extrasolar planets is the transit method. We review the planet transits which were anticipated, searched, and the first ones which were observed all through history. Indeed transits of planets in front of their
A Helden Van, A Lecavelier des Etangs, A Lecavelier des Etangs, AM Lagrange, D Belorizky, D Lardner, DM Kipping, E Ledger, E Piggot, EJ Korpela, FJ Baumgartner, G Galilei, G Rémy, Goodricke, H Deeg, J Kepler, J Kepler, J Kepler, J Napier, J Schneider, J Schneider, J Tarde, JM Vaquero, L. R. Doyle, Laurance R. Doyle, LFA Arnold, M Hoskin, M Mayor, MAC Perryman, N Copernicus, O Struve, P Gassendi, R Lallemand, Strand KAa, UJ Verrier Le, VB Kostov, W Borucki   +36 more
core   +2 more sources

On the Radii of Close-in Giant Planets [PDF]

, 2000
The recent discovery that the close-in extrasolar giant planet, HD209458b, transits its star has provided a first-of-its-kind measurement of the planet's radius and mass.
A. Burrows, D. Saumon, D. Sudarsky, Fuhrmann K., Guillot T., J. I. Lunine, M. S. Marley, T. Guillot, W. B. Hubbard   +8 more
core   +2 more sources

Superhabitable Planets Around Mid‐Type K Dwarf Stars Enhance Simulated JWST Observability and Surface Habitability

Astronomische Nachrichten, Volume 346, Issue 2, February 2025.
ABSTRACT In our search for life beyond the Solar System, certain planetary bodies may be more conducive to life than Earth. However, the observability of these “superhabitable” (SH) planets in the habitable zones around K dwarf stars has not been fully modeled. This study addresses this gap by modeling the atmospheres of SH exoplanets.
Iva Vilović, Jayesh Goyal, René Heller, Fanny Marie von Schauenburg   +3 more
wiley   +1 more source

Astrometric Methods for Detecting Exomoons Orbiting Imaged Exoplanets: Prospects for Detecting Moons Orbiting a Giant Planet in α Centauri A’s Habitable Zone

The Astrophysical Journal Letters
Nearby giant exoplanets offer an opportunity to search for moons (exomoons) orbiting them. Here, we present a simulation framework for investigating the possibilities of detecting exomoons via their astrometric signal in planet-to-star relative ...
Kevin Wagner, Ewan Douglas, Steve Ertel, Kyran Grattan, S. Pete Worden, Aniket Sanghi, Billy Quarles, Charles Beichman   +7 more
doaj   +1 more source

The Process We Call Earth: Relationships Between Dynamic Feedbacks and the Search for Gaiasignatures in a New Paradigm of Earthlikeness

Perspectives of Earth and Space Scientists, Volume 5, Issue 1, December 2024.
Abstract Standard notions of an “Earthlike” planet rely solely on physical and material properties, like planetary mass, radius, and surface temperature. Here, we introduce a novel, relational perspective on what defines “Earthlikeness.” In our process‐based framework, rocky planets are local pockets of free energy that have the potential to drive the ...
Michael L. Wong, Marissa Duckett, Emilia S. Hernandez, Vahab Rajaei, Kayla J. Smith   +4 more
wiley   +1 more source

Sensitivity to Sub-Io-sized Exosatellite Transits in the MIRI LRS Light Curve of the Nearest Substellar Worlds

The Astrophysical Journal Letters
JWST’s unprecedented sensitivity enables precise spectrophotometric monitoring of substellar worlds, revealing atmospheric variability driven by mechanisms operating across different pressure levels.
Andrew Householder, Mary Anne Limbach, Beth Biller, Brooke Kotten, Mikayla J. Wilson, Johanna M. Vos, Andrew Skemer, Andrew Vanderburg, Ben J. Sutlieff, Xueqing Chen, Ian J. M. Crossfield, Nicolas Crouzet, Trent Dupuy, Jacqueline Faherty, Pengyu Liu, Elena Manjavacas, Allison McCarthy, Caroline V. Morley, Philip S. Muirhead, Natalia Oliveros-Gomez, Genaro Suárez, Xianyu Tan, Yifan Zhou   +22 more
doaj   +1 more source

Exoplanets and SETI

, 2017
The discovery of exoplanets has both focused and expanded the search for extraterrestrial intelligence. The consideration of Earth as an exoplanet, the knowledge of the orbital parameters of individual exoplanets, and our new understanding of the ...
A Loeb, A Przybylski, A Stevens, A Wolszczan, BM Oliver, C Majeau, CD Dressing, CE Singer, CR Cowley, DH Forgan, DJ Kessler, DM Kipping, DP Whitmire, EA Petigura, EJ Korpela, FJ Dyson, G Cocconi, GR Harp, GW Pace, H Isaacson, H Kawahara, HA Knutson, HW Lin, I Shklovskiĭ, J Freeman, J Guillochon, J Maire, J Schneider, J Tarter, J Wit de, JF Kasting, JR Kuhn, JT Wright, L Kreidberg, LFA Arnold, LN Filippova, LN Filippova, M Lingam, MC Turnbull, MC Turnbull, NB Cowan, PV Makovetskii, PV Makovetskii, RA Carrigan Jr, RA Carrigan Jr, RHD Corbet, RN Bracewell, RS Dixon, S Shostak, T Henry, T Schelling, WA Traub, Z Osmanov   +52 more
core   +1 more source

Detection and quantification of organosulfur species in the Tagish Lake Meteorite by highly sensitive LC‐MS

Meteoritics &Planetary Science, Volume 59, Issue 9, Page 2241-2259, September 2024.
Abstract We analyzed the methanol extracts of six pristine specimens of the Tagish Lake meteorite (TL1, TL4, TL5A, TL6, TL7, and TL10a) and heated and unheated samples of Allende using high‐performance liquid chromatography coupled with high‐resolution, accurate mass–mass spectrometry (HPLC‐HRAM‐MS).
N. Randazzo, R. W. Hilts, M. C. Holt, C. D. K. Herd, B. Reiz, R. M. Whittal   +5 more
wiley   +1 more source

Free-floating Planets Produced by Planet–Planet Scatterings: Ejection Velocity and Survival Rate of Their Moons

The Astrophysical Journal
The discovery of numerous free-floating planets (FFPs) has intensified interest in their origins and dynamical histories. A leading formation mechanism is planet–planet scatterings in unstable multiplanetary systems, which can naturally lead to planetary
Xiumin Huang, Dong Lai
doaj   +1 more source

Tidal evolution of close-in exoplanets in co-orbital configurations [PDF]

, 2013
In this paper, we study the behavior of a pair of co-orbital planets, both orbiting a central star on the same plane and undergoing tidal interactions. Our goal is to investigate final orbital configurations of the planets, initially involved in the 1/1 ...
Giuppone, Cristian A., Michtchenko, Tatiana A., Rodríguez, Adrián   +2 more
core   +2 more sources