Results 31 to 40 of about 828 (196)

Circumbinary planets: migration, trapping in mean-motion resonances, and ejection [PDF]

, 2023
Context. Most of the planetary systems discovered around binary stars are located at approximately three semi-major axes from the barycentre of their system, curiously close to low-order mean-motion resonances (MMRs).
Emmanuel Gianuzzi, Gianuzzi, Emmanuel, Cuello, Nicolás, Nicolás Cuello, Cristian Giuppone, Giuppone, Cristian Andrés, Giuppone, Cristian   +6 more
core   +1 more source

Stellar companions to exoplanet host stars: A Lucky Imaging survey of transiting exoplanet systems [PDF]

, 2016
About half of all nearby stars are part of a binary or multiple star system, yet little is known about how multiplicity affects the formation and subsequent evolution of planetary systems. For instance, stellar companions may promote the inward migration
Wöllert, Maria
core   +1 more source

Lithium depletion and the rotational history of exoplanet host stars [PDF]

, 2008
International audienceContext: It has been reported that exoplanet host stars are lithium depleted compared to solar-type stars without detected massive planets.
Bouvier, J., J. Bouvier, Bouvier, Jerome
core   +1 more source

Orbital misalignment of the Neptune-mass exoplanet GJ 436b with the spin of its cool star [PDF]

, 2017
The angle between the spin of a star and its planets' orbital planes traces the history of the planetary system. Exoplanets orbiting close to cool stars are expected to be on circular, aligned orbits because of strong tidal interactions with the stellar ...
Cegla, H. M., Bonfils, Xavier, Ségransan, Damien, Wyttenbach, Aurélien, Gregory W. Henry, Heather M. Cegla, Pepe, Francesco, Romain Allart, Allart, Romain, Astudillo-Defru, Nicola, Hervé Beust, Nicola Astudillo-Defru, Henry, Gregory W., Xavier Bonfils, Lovis, Christophe, Lavie, Baptiste, Heng, Kevin, Francesco Pepe, Xavier Delfosse, Vincent Bourrier, Cegla, Heather, Kevin Heng, Baptiste Lavie, Bourrier, Vincent, Aurélien Wyttenbach, Delfosse, Xavier, Cegla, Heather M., Christophe Lovis, Beust, Hervé, Ehrenreich, David, Damien Ségransan, David Ehrenreich, Henry, Gregory   +32 more
core   +1 more source

VaTEST I: validation of sub-Saturn exoplanet TOI-181b in narrow orbit from its host star [PDF]

, 2023
We present here a validation of sub-Saturn exoplanet TOI-181b orbiting a K spectral type star TOI-181 (mass: 0.822 +/- 0.04 M-circle dot, radius: 0.745 +/- 0.02 R-circle dot, temperature: 4994 +/- 50 K) as a part of Validation of Transiting Exoplanets ...
Prasad, Aniket, Bieryla, Allyson, Maity, Mousam, Beichman, Charles A., Bhattarai, Surendra, Eastman, Jason D., Lucero, Jennifer P., Pathak, Kamlesh, Ciardi, David R., Esquerdo, Gilbert A., Mistry, Priyashkumar, Evans, Phil, Lekkas, Georgios   +12 more
core   +1 more source

Modeling of Solar-Stellar Connections and the Heliophysics of Exoplanet Systems [PDF]

, 2021
In the past two and a half decades, advances in the field of exoplanet detection have confirmed more than 4,000 known planets outside of our Solar System \cite{exoplanets}.
Farrish, Alison O.
core  

Confirming Resonance in Three Transiting Systems

The Astronomical Journal, 2023
Although resonant planets have orbital periods near commensurability, resonance is also dictated by other factors, such as the planets’ eccentricities and masses, and therefore must be confirmed through a study of the system’s dynamics.
Tyler Quinn, Mariah G. MacDonald
doaj   +1 more source

Peas and USPs: Can Stellar Spindown and Peas in a Pod Replicate Ultra-short-period Planet Characteristics?

The Astrophysical Journal
Peas-in-a-Pod (PIAP) systems have been shown to be common across exoplanet systems, with regular planet spacings and similar planet sizes. In contrast, ultra-short-period planets have displayed distinct differences from PIAP systems, including higher ...
Adam Distler, Juliette Becker
doaj   +1 more source

Advancing Heliophysics and Space Weather Modeling Through Open Science

Space Weather, Volume 24, Issue 6, June 2026.
Abstract We present a community‐wide effort to develop a strategy and action plan to advance heliophysics and space weather modeling through open science. While open science has the potential to enhance the quality and pace of scientific discovery, its application to scientific modeling requires more careful consideration regarding open data and open ...
C. Corti, M. M. Kuznetsova, M. A. Reiss, J. Yue, J. Karpen, C. N. Arge, F. Bacchini, C. Bard, S. Bruinsma, R. M. Caplan, L. K. S. Daldorff, P. J. Deka, C. R. DeVore, S. Elvidge, N. Ganushkina, J. D. Huba, B. V. Jackson, V. Jordanova, J. A. Linker, H. Liu, J. G. Luhmann, S. Markidis, P. Mayank, V. Merkin, N. Moens, D. Odstrcil, Y. A. Omelchenko, M. Palmroth, S. Poedts, A. J. Ridley, Y. Shou, V. Tenishev, D. R. Themens, G. Toth, W. Wang, R.‐P. Wilhelm, M. A. Young, B. Cecconi, M.‐Y. Chou, D. De Zeeuw, G. L. Delzanno, C. Didigu, M. El Alaoui, S. Fung, J. Green, Z. Huang, L. K. Jian, L. J. Landwer, M. Lesko, P. MacNeice, A. Masson, M. L. Mays, P. M. Mehta, M. S. Miesch, E. Palmerio, M. Petrenko, E. Provornikova, L. Rastätter, L. Rusaitis, N. Sachdeva, E. Samara, D. Sur, A. Taktakishvili, J. Topper, T. Tsui, C. Verbeke, J. Wang, C. Wiegand, M. Wiltberger, Y. Zheng, M. M. Bisi, M. K. Georgoulis, T. Kodikara, T. Pulkkinen, A. Chartier, D. da Silva, A. Faturahman, K. Garcia‐Sage, D. Kondrashov, V. E. Ledvina, W. Liu, C. Pandey, E. Resnick, C. Shi, R. S. Weigel, K. Whitman, I. Zakharenkova, K. Zhang   +87 more
wiley   +1 more source

Records of migration in the exoplanet configurations [PDF]

, 2013
When compared to our Solar System, many exoplanet systems exhibit quite unusual planet configurations; some of these are hot Jupiters, which orbit their central stars with periods of a few days, others are resonant systems composed of two or more planets
Michtchenko, Tatiana Alexandrovna, Colucci, Adrian Rodriguez, Santos, Marcos Tadeu dos   +2 more
core