Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Feiden, Gregory A."'
Determining the precise ages of young (tens to a few hundred Myr) kinematic (``moving") groups is important for placing star, protoplanetary disk, and planet observations on an evolutionary timeline. The nearby $\sim$25 Myr-old $\beta$ Pictoris Movin
Externí odkaz:
http://arxiv.org/abs/2312.15792
Autor:
Fernandes, Rachel B., Hardegree-Ullman, Kevin K., Pascucci, Ilaria, Bergsten, Galen J., Mulders, Gijs D., Cunha, Katia, Mamajek, Eric E., Pearson, Kyle A., Feiden, Gregory A., Curtis, Jason L.
The demographics of young exoplanets can shed light onto their formation and evolution processes. Exoplanet properties are derived from the properties of their host stars. As such, it is important to accurately characterize the host stars since any s
Externí odkaz:
http://arxiv.org/abs/2308.13039
Age is a stellar parameter that is both fundamental and difficult to determine. Among middle-aged M dwarfs, the most prolific hosts of close-in and detectable exoplanets, gyrochronology is the most promising method to assign ages, but requires calibr
Externí odkaz:
http://arxiv.org/abs/2301.12109
Autor:
Wood, Mackenna L., Mann, Andrew W., Barber, Madyson G., Bush, Jonathan L., Kraus, Adam L., Tofflemire, Benjamin M., Vanderburg, Andrew, Newton, Elisabeth R., Feiden, Gregory A., Zhou, George, Bouma, Luke G., Quinn, Samuel N., Armstrong, David J., Osborn, Ares, Adibekyan, Vardan, Mena, Elisa Delgado, Sousa, Sergio G., Gagné, Jonathan, Fields, Matthew J., Milburn, Reilly P., Thao, Pa Chia, Schmidt, Stephen P., Gnilka, Crystal L., Howell, Steve B., Law, Nicholas M., Ziegler, Carl, Briceño, César, Ricker, George R., Vanderspek, Roland, Latham, David W., Seager, Sara, Winn, Joshua N., Jenkins, Jon M., Schlieder, Joshua E., Osborn, Hugh P., Twicken, Joseph D., Ciardi, David R., Huang, Chelsea X.
We report the discovery and characterization of a nearby (~ 85 pc), older (27 +/- 3 Myr), distributed stellar population near Lower-Centaurus-Crux (LCC), initially identified by searching for stars co-moving with a candidate transiting planet from TE
Externí odkaz:
http://arxiv.org/abs/2212.03266
Autor:
Gaidos, Eric, Mann, Andrew W., Rojas-Ayala, Bárbara, Feiden, Gregory A., Wood, Mackenna L., Narayanan, Suchitra, Ansdell, Megan, Jacobs, Tom, LaCourse, Daryll
Studies of T Tauri disks inform planet formation theory; observations of variability due to occultation by circumstellar dust are a useful probe of unresolved, planet-forming inner disks, especially around faint M dwarf stars. We report observations
Externí odkaz:
http://arxiv.org/abs/2204.14163
Main-sequence stars with convective envelopes often appear larger and cooler than predicted by standard models of stellar evolution for their measured masses. This is believed to be caused by stellar activity. In a recent study, accurate measurements
Externí odkaz:
http://arxiv.org/abs/2112.12155
The Gaia M-dwarf gap is a significant under-density of stars observed near $M_G = 10.2$ in a color-magnitude diagram for stars within 200 pc of the Sun. It has been proposed that the gap is the manifestation of structural instabilities within stellar
Externí odkaz:
http://arxiv.org/abs/2011.07991
Autor:
Simon, M., Guilloteau, S., Beck, Tracy L., Chappilon, E., Dutrey, E. Di Folco A., Feiden, Gregory A., Grosso, N., Prato, L., Schaefer, Gail. H.
The accuracy of masses of pre-main sequence (PMS) stars derived from their locations on the Hertzsprung-Russell Diagram (HRD) can be tested by comparison with accurate and precise masses determined independently. We present 29 single stars in the Tau
Externí odkaz:
http://arxiv.org/abs/1908.10952
Autor:
Newton, Elisabeth R., Mann, Andrew W., Tofflemire, Benjamin M., Pearce, Logan, Rizzuto, Aaron C., Vanderburg, Andrew, Martinez, Raquel A., Wang, Jason J., Ruffio, Jean-Baptiste, Kraus, Adam L., Johnson, Marshall C., Thao, Pa Chia, Wood, Mackenna L., Rampalli, Rayna, Nielsen, Eric L., Collins, Karen A., Dragomir, Diana, Hellier, Coel, Anderson, D. R., Barclay, Thomas, Brown, Carolyn, Feiden, Gregory, Hart, Rhodes, Isopi, Giovanni, Kielkopf, John F., Mallia, Franco, Nelson, Peter, Rodriguez, Joseph E., Stockdale, Chris, Waite, Ian A., Wright, Duncan J., Lissauer, Jack, Ricker, George R., Vanderspek, Roland, Latham, David W., Seager, S., Winn, Joshua N., Jenkins, Jon M., Bouma, Luke G., Burke, Christopher J., Davies, Misty, Fausnaugh, Michael, Li, Jie, Morris, Robert L., Mukai, Koji, Villaseñor, Joel, Villeneuva, Steven, De Rosa, Robert J., Macintosh, Bruce, Mengel, Matthew W., Okumura, Jack, Wittenmyer, Robert A.
Young exoplanets are snapshots of the planetary evolution process. Planets that orbit stars in young associations are particularly important because the age of the planetary system is well constrained. We present the discovery of a transiting planet
Externí odkaz:
http://arxiv.org/abs/1906.10703
Autor:
Mann, Andrew W., Dupuy, Trent, Kraus, Adam L., Gaidos, Eric, Ansdell, Megan, Ireland, Michael, Rizzuto, Aaron C., Hung, Chao-Ling, Dittmann, Jason, Factor, Samuel, Feiden, Gregory, Martinez, Raquel A., Ruiz-Rodriguez, Dary, Thao, Pa Chia
Publikováno v:
2019 ApJ 871 63
The mass-luminosity relation for late-type stars has long been a critical tool for estimating stellar masses. However, there is growing need for both a higher-precision relation and a better understanding of systematic effects (e.g., metallicity). He
Externí odkaz:
http://arxiv.org/abs/1811.06938