Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Ruth Angus"'
Autor:
Samuel K. Grunblatt, Nicholas Saunders, Daniel Huber, Daniel Thorngren, Shreyas Vissapragada, Stephanie Yoshida, Kevin C. Schlaufman, Steven Giacalone, Mason Macdougall, Ashley Chontos, Emma Turtelboom, Corey Beard, Joseph M. Akana Murphy, Malena Rice, Howard Isaacson, Ruth Angus, Andrew W. Howard
Publikováno v:
The Astronomical Journal, Vol 168, Iss 1, p 1 (2024)
Hot Neptunes, gaseous planets smaller than Saturn (∼3–8 R _⊕ ) with orbital periods less than 10 days, are rare. Models predict this is due to high-energy stellar irradiation stripping planetary atmospheres over time, often leaving behind only
Externí odkaz:
https://doaj.org/article/60a3ed11600f46b49d2be5cb04e96478
Publikováno v:
The Astronomical Journal, Vol 167, Iss 5, p 189 (2024)
For ongoing studies of the role of rotation in stellar evolution, we require large catalogs of rotation periods for testing and refining gyrochronology. While there is a wealth of data from the Kepler and K2 missions, the Transiting Exoplanet Survey
Externí odkaz:
https://doaj.org/article/b34b6b32058749e393df906424590e1a
Publikováno v:
The Astronomical Journal, Vol 167, Iss 4, p 159 (2024)
Gyrochronology, the field of age dating stars using mainly their rotation periods and masses, is ideal for inferring the ages of individual main-sequence stars. However, due to the lack of physical understanding of the complex magnetic fields in star
Externí odkaz:
https://doaj.org/article/88f83e226f0d4896984c11e21574a6da
Publikováno v:
The Astronomical Journal, Vol 166, Iss 6, p 258 (2023)
Earth-mass exoplanets on year-long orbits and cool gas giants (CGG) on decade-long orbits lie at the edge of current detection limits. The Terra Hunting Experiment (THE) will take nightly radial velocity (RV) observations on HARPS3 of at least 40 bri
Externí odkaz:
https://doaj.org/article/ba232045362947e18b4221586bfed820
Autor:
Samuel K. Grunblatt, Nicholas Saunders, Ashley Chontos, Soichiro Hattori, Dimitri Veras, Daniel Huber, Ruth Angus, Malena Rice, Katelyn Breivik, Sarah Blunt, Steven Giacalone, Jack Lubin, Howard Isaacson, Andrew W. Howard, David R. Ciardi, Boris S. Safonov, Ivan A. Strakhov, David W. Latham, Allyson Bieryla, George R. Ricker, Jon M. Jenkins, Peter Tenenbaum, Avi Shporer, Edward H. Morgan, Veselin Kostov, Hugh P. Osborn, Diana Dragomir, Sara Seager, Roland K. Vanderspek, Joshua N. Winn
Publikováno v:
The Astronomical Journal, Vol 165, Iss 2, p 44 (2023)
The fate of planets around rapidly evolving stars is not well understood. Previous studies have suggested that, relative to the main-sequence population, planets transiting evolved stars ( P < 100 days) tend to have more eccentric orbits. Here we pre
Externí odkaz:
https://doaj.org/article/c012714a9bd94bb69cd81702d7d48771
Autor:
Caroline Piaulet, Björn Benneke, Jose M. Almenara, Diana Dragomir, Heather A. Knutson, Daniel Thorngren, Merrin S. Peterson, Ian J. M. Crossfield, Eliza M.-R. Kempton, Daria Kubyshkina, Andrew W. Howard, Ruth Angus, Howard Isaacson, Lauren M. Weiss, Charles A. Beichman, Jonathan J. Fortney, Luca Fossati, Helmut Lammer, P. R. McCullough, Caroline V. Morley, Ian Wong
Publikováno v:
Nature Astronomy.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ede8f1450f76c6a2bd2a041885a4217
https://doi.org/10.1038/s41550-022-01835-4
https://doi.org/10.1038/s41550-022-01835-4
Autor:
Rocio Kiman, Siyi Xu, Jacqueline K. Faherty, Jonathan Gagné, Ruth Angus, Timothy D. Brandt, Sarah L. Casewell, Kelle L. Cruz
White dwarfs have been successfully used as cosmochronometers in the literature, however their reach has been limited in comparison to their potential. We present wdwarfdate, a publicly available Python package to derive the Bayesian age of a white d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3ea10c920bb67696db9a881e4601af4
Autor:
Samuel K. Grunblatt, Nicholas Saunders, Meng Sun, Ashley Chontos, Melinda Soares-Furtado, Nora Eisner, Filipe Pereira, Thaddeus Komacek, Daniel Huber, Karen Collins, Gavin Wang, Chris Stockdale, Samuel N. Quinn, Rene Tronsgaard, George Zhou, Grzegorz Nowak, Hans J. Deeg, David R. Ciardi, Andrew Boyle, Malena Rice, Fei Dai, Sarah Blunt, Judah Van Zandt, Corey Beard, Joseph M. Akana Murphy, Paul A. Dalba, Jack Lubin, Alex Polanski, Casey Lynn Brinkman, Andrew W. Howard, Lars A. Buchhave, Ruth Angus, George R. Ricker, Jon M. Jenkins, Bill Wohler, Robert F. Goeke, Alan M. Levine, Knicole D. Colon, Chelsea X. Huang, Michelle Kunimoto, Avi Shporer, David W. Latham, Sara Seager, Roland K. Vanderspek, Joshua N. Winn
Publikováno v:
Grunblatt, S K, Saunders, N, Sun, M, Chontos, A, Soares-Furtado, M, Eisner, N, Pereira, F, Komacek, T, Huber, D, Collins, K, Wang, G, Stockdale, C, Quinn, S N, Tronsgaard, R, Zhou, G, Nowak, G, Deeg, H J, Ciardi, D R, Boyle, A, Rice, M, Dai, F, Blunt, S, Van Zandt, J, Beard, C, Akana Murphy, J M, Dalba, P A, Lubin, J, Polanski, A, Brinkman, C L, Howard, A W, Buchhave, L A, Angus, R, Ricker, G R, Jenkins, J M, Wohler, B, Goeke, R F, Levine, A M, Colon, K D, Huang, C X, Kunimoto, M, Shporer, A, Latham, D W, Seager, S, Vanderspek, R K & Winn, J N 2022, ' TESS Giants Transiting Giants. II. the Hottest Jupiters Orbiting Evolved Stars ', Astronomical Journal, vol. 163, no. 3, 120 . https://doi.org/10.3847/1538-3881/ac4972
Giant planets on short-period orbits are predicted to be inflated and eventually engulfed by their host stars. However, the detailed timescales and stages of these processes are not well known. Here we present the discovery of three hot Jupiters (P $
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d2170500c3883cdd3c2cafdf1e85726
https://orbit.dtu.dk/en/publications/4d22955d-31f6-425f-9bac-9154737d45b5
https://orbit.dtu.dk/en/publications/4d22955d-31f6-425f-9bac-9154737d45b5
The intermediate period gap, discovered by Kepler, is an observed dearth of stellar rotation periods in the temperature–period diagram at ∼20 days for G dwarfs and up to ∼30 days for early-M dwarfs. However, because Kepler mainly targeted solar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c7eac383cac2690075091e41ef2ce1c
Autor:
Trevor J. David, Ruth Angus, Jason L. Curtis, Jennifer L. van Saders, Isabel L. Colman, Gabriella Contardo, Yuxi Lu, Joel C. Zinn
Publikováno v:
The Astrophysical Journal. 933:114
We combine stellar surface rotation periods determined from NASA's Kepler mission with spectroscopic temperatures to demonstrate the existence of pileups at the long-period and short-period edges of the temperature-period distribution for main-sequen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e44d8b2613a9148a896a26992d1a7974
https://doi.org/10.3847/1538-4357/ac6dd3
https://doi.org/10.3847/1538-4357/ac6dd3