Results 41 to 50 of about 8,932,640 (210)

TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets around M-dwarf Stars and Revised Parameters for Three Others

The Astronomical Journal, 2023
We present the discovery from the TESS mission of two giant planets transiting M-dwarf stars: TOI 4201 b and TOI 5344 b. We also provide precise radial velocity measurements and updated system parameters for three other M dwarfs with transiting giant ...
J. D. Hartman, G. Á. Bakos, Z. Csubry, A. W. Howard, H. Isaacson, S. Giacalone, A. Chontos, N. Narita, A. Fukui, J. P. de Leon, N. Watanabe, M. Mori, T. Kagetani, I. Fukuda, Y. Kawai, M. Ikoma, E. Palle, F. Murgas, E. Esparza-Borges, H. Parviainen, L. G. Bouma, M. Cointepas, X. Bonfils, J. M. Almenara, Karen A. Collins, Kevin I. Collins, Howard M. Relles, Khalid Barkaoui, Richard P. Schwarz, Ghachoui Mourad, Mathilde Timmermans, Georgina Dransfield, Artem Burdanov, Julien de Wit, Emmanuël Jehin, Amaury H. M. J. Triaud, Michaël Gillon, Zouhair Benkhaldoun, Keith Horne, Ramotholo Sefako, A. Jordán, R. Brahm, V. Suc, Steve B. Howell, E. Furlan, J. E. Schlieder, D. Ciardi, T. Barclay, E. J. Gonzales, I. Crossfield, C. D. Dressing, M. Goliguzova, A. Tatarnikov, George R. Ricker, Roland Vanderspek, David W. Latham, S. Seager, Joshua N. Winn, Jon M. Jenkins, Stephanie Striegel, Avi Shporer, Andrew Vanderburg, Alan M. Levine, Veselin B. Kostov, David Watanabe   +64 more
doaj   +1 more source

Resilient habitability of nearby exoplanet systems [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
ABSTRACT We investigate the possibility of finding Earth-like planets in the habitable zone of 34 nearby FGK-dwarfs, each known to host one giant planet exterior to their habitable zone detected by RV. First we simulate the dynamics of the planetary systems in their present day configurations and determine the fraction of stable ...
Giorgi Kokaia, Melvyn B Davies, Alexander J Mustill   +2 more
openaire   +2 more sources

exoplanet-dev/exoplanet: exoplanet v0.3.2

, 2020
Fixes a documentation bug introduced in v0.3.
Dan Foreman-Mackey, Eric Agol, Tom Barclay, Ian Czekala, Rodrigo Luger, Adrian Price-Whelan   +5 more
core   +1 more source

Exoplanet imaging data challenge: benchmarking the various image processing methods for exoplanet detection [PDF]

, 2020
The Exoplanet Imaging Data Challenge is a community-wide effort meant to offer a platform for a fair and common comparison of image processing methods designed for exoplanet direct detection. For this purpose, it gathers on a dedicated repository (Zenodo)
Desgrange, Célia, Schreiber, Laura, Bonse, M. J., Bonse, Markus Johannes, Fuhrmann, T., Cantalloube, Faustine, Dino Mesa, Kenworthy, M., Samland, Matthias, Nasedkin, E., Ruffio, J.-B., Henning, Th., Tiffany Meshkat, Bonse, Markus, Jensen-Clem, R., André Müller, Bonse, J. M., Sébastien Piérard, Schmidt, Dirk, Absil, O., Marc Van Droogenbroeck, Michael Bottom, Regis Bacher, Henning, Thomas H., Flasseur, O., Adaptive Optics Systems VII, Kenworthy, Matthew, Jean-Baptiste Ruffio, Bottom, Michael, Desgrange, C., Célia Desgrange, Mawet, D., Absil, Olivier, Pairet, Benoit, Müller, Andreas, Cantero Mitjans, Carles, Markus Bonse, Benoit Pairet, Bottom, M., Müller, A., Bacher, Raphael, Van Droogenbroeck, Marc, Stone, Jordan, Stone, J., Van Droogenbroeck, M., Fuhrmann, Thomas, Mouillet, David, Samland, M., Flasseur, Olivier, Piérard, S., Cantero, Carles, Henning, Thomas, Jensen-Clem, Rebecca, Ruffio, Jean-Baptiste, Piérard, Sébastien, Müller, André, Mouillet, D., Meshkat, T., Mesa, Dino, Vernet, Elise, Gomez Gonzalez, Carlos, Olivier Absil, Carles Cantero, Meshkat, Tiffany, Pairet, B., Cantalloube, F., Mesa, D., Bacher, Regis, Carl-Henrik Dahlqvist, Matthias Samland, Dahlqvist, C.-H., Thomas H. Henning, Gomez-Gonzalez, Carlos, Dahlqvist, Carl-Henrik, Faustine Cantalloube, Matthew Kenworthy, Bacher, R., Cantero, C., Nasedkin, Evert, Carlos Gomez-Gonzalez, Gomez-Gonzalez, C., Olivier Flasseur, Thomas Fuhrmann, Rebecca Jensen-Clem, Evert Nasedkin, Dimitri Mawet, Mawet, Dimitri, Jordan Stone, David Mouillet   +88 more
core   +1 more source

exoplanet-dev/exoplanet: exoplanet v0.4.1

, 2020
0.4.1 (2020-11-15) ++++++++++++++++++ Fixes pickling error when sampling in parallel ...
emilygilbert, Dan Foreman-Mackey, Eric Agol, Tom Barclay, Ian Czekala, Luke Bouma, Rodrigo Luger, Adrian Price-Whelan, Timothy D Brandt   +8 more
core   +1 more source

Abiotic ozone and oxygen in atmospheres similar to prebiotic earth [PDF]

, 2014
The search for life on planets outside our solar system will use spectroscopic identification of atmospheric biosignatures. The most robust remotely detectable potential biosignature is considered to be the detection of oxygen (O2) or ozone (O3 ...
Domagal-Goldman, Shawn D., Robinson, T.D., Segura, A., Claire, Mark W., Claire, M.W., Meadows, Victoria S., Meadows, V.S., Domagal-Goldman, S.D., Robinson, Tyler D., Segura, Antigona   +9 more
core   +1 more source

Solar System Planets and Exoplanets

, 2021
Solar System planets have been studied for centuries, but the observation of exoplanets is only a few decades old. Consequently, knowledge of exoplanets is considerably more limited than Solar System planets. This chapter reviews the essential characteristics of Solar System planets and associated data derived from a variety of observational approaches.
openaire   +3 more sources

Dynamics of Two Planets near a 2:1 Resonance: Case Studies of Known and Synthetic Exosystems on a Grid of Initial Configurations

Universe
The distribution of period ratios for 580 known two-planet systems is apparently nonuniform, with several sharp peaks and troughs. In particular, the vicinity of the 2:1 commensurability seems to have a deficit of systems.
Valeri Makarov, Alexey Goldin, Dimitri Veras   +2 more
doaj   +1 more source

TOI-2525 b and c: A Pair of Massive Warm Giant Planets with Strong Transit Timing Variations Revealed by TESS

The Astronomical Journal, 2023
The K-type star TOI-2525 has an estimated mass of M = ${0.849}_{-0.033}^{+0.024}$ M _⊙ and radius of R = ${0.785}_{-0.007}^{+0.007}$ R _⊙ observed by the TESS mission in 22 sectors (within sectors 1 and 39).
Trifon Trifonov, Rafael Brahm, Andrés Jordán, Christian Hartogh, Thomas Henning, Melissa J. Hobson, Martin Schlecker, Saburo Howard, Finja Reichardt, Nestor Espinoza, Man Hoi Lee, David Nesvorny, Felipe I. Rojas, Khalid Barkaoui, Diana Kossakowski, Gavin Boyle, Stefan Dreizler, Martin Kürster, René Heller, Tristan Guillot, Amaury H. M. J. Triaud, Lyu Abe, Abdelkrim Agabi, Philippe Bendjoya, Nicolas Crouzet, Georgina Dransfield, Thomas Gasparetto, Maximilian N. Günther, Wenceslas Marie-Sainte, Djamel Mékarnia, Olga Suarez, Johanna Teske, R. Paul Butler, Jeffrey D. Crane, Stephen Shectman, George R. Ricker, Avi Shporer, Roland Vanderspek, Jon M. Jenkins, Bill Wohler, Karen A. Collins, Kevin I. Collins, David R. Ciardi, Thomas Barclay, Ismael Mireles, Sara Seager, Joshua N. Winn   +46 more
doaj   +1 more source

Search for (sub)stellar Companions of Exoplanet Hosts by Exploring the Second ESA-Gaia Data Release

Frontiers in Astronomy and Space Sciences, 2021
We present the latest results of an ongoing multiplicity survey of exoplanet hosts, which was initiated at the Astrophysical Institute and University Observatory Jena, using data from the second data release of the ESA-Gaia mission.
K.-U. Michel, M. Mugrauer
doaj   +1 more source