Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Rampalli, Rayna"'
The elemental abundances of stars, particularly the refractory elements (e.g., Fe, Si, Mg), play an important role in connecting stars to their planets. Most Sun-like stars do not have refractory abundance measurements since obtaining a large sample
Externí odkaz:
http://arxiv.org/abs/2402.16954
Recent space-based missions have ushered in a new era of observational astronomy, where high-cadence photometric light curves for thousands to millions of stars in the solar neighborhood can be used to test and apply stellar age-dating methods, inclu
Externí odkaz:
http://arxiv.org/abs/2310.02305
Autor:
Heitzmann, Alexis, Zhou, George, Quinn, Samuel N., Huang, Chelsea X., Dong, Jiayin, Bouma, Luke G., Dawson, Rebekah I., Marsden, Stephen C., Wright, Duncan, Petit, Pascal, Collins, Karen A., Barkaoui, Khalid, Wittenmyer, Robert A., Gillen, Edward, Brahm, Rafael, Hobson, Melissa, Hellier, Coel, Ziegler, Carl, Briceño, César, Law, Nicholas, Mann, Andrew W., Howell, Steve B., Gnilka, Crystal L., Littlefield, Colin, Latham, David W., Lissauer, Jack J., Newton, Elisabeth R., Krolikowski, Daniel M., Kerr, Ronan, Rampalli, Rayna, Douglas, Stephanie T., Eisner, Nora L., Guedj, Nathalie, Sun, Guoyou, Smit, Martin, Huten, Marc, Eschweiler, Thorsten, Abe, Lyu, Guillot, Tristan, Ricker, George, Vanderspek, Roland, Seager, Sara, Jenkins, Jon M., Ting, Eric B., Winn, Joshua N., Ciardi, David R., Vanderburg, Andrew M., Burke, Christopher J., Rodriguez, David R., Daylan, Tansu
We report the discovery of TOI-4562 b (TIC-349576261), a Jovian planet orbiting a young F7V-type star, younger than the Praesepe/Hyades clusters (< $700$ Myr). This planet stands out because of its unusually long orbital period for transiting planets
Externí odkaz:
http://arxiv.org/abs/2208.10854
Autor:
Newton, Elisabeth R., Rampalli, Rayna, Kraus, Adam L., Mann, Andrew W., Curtis, Jason L., Vanderburg, Andrew, Krolikowski, Daniel M., Huber, Daniel, Petter, Grayson C., Bieryla, Allyson, Tofflemire, Benjamin M., Thao, Pa Chia, Wood, Mackenna L., Kerr, Ronan, Safonov, Boris S., Strakhov, Ivan A., Ciardi, David R., Giacalone, Steven, Dressing, Courtney D., Gill, Holden, Savel, Arjun B., Collins, Karen A., Brown, Peyton, Murgas, Felipe, Isogai, Keisuke, Narita, Norio, Palle, Enric, Quinn, Samuel N., Eastman, Jason D., Fűrész, Gábor, Shiao, Bernie, Daylan, Tansu, Caldwell, Douglas A., Ricker, George R., Vanderspek, Roland, Seager, Sara, Winn, Joshua N., Jenkins, Jon M., Latham, David W.
The public, all-sky surveys Gaia and TESS provide the ability to identify new young associations and determine their ages. These associations enable study of planetary evolution by providing new opportunities to discover young exoplanets. A young ass
Externí odkaz:
http://arxiv.org/abs/2206.06254
Autor:
Núñez, Alejandro, Agüeros, Marcel A., Covey, Kevin R., Douglas, Stephanie T., Drake, Jeremy J., Rampalli, Rayna, Bowsher, Emily C., Cargile, Phillip A., Kraus, Adam L., Law, Nicholas M.
X-ray observations of low-mass stars in open clusters are critical to understanding the dependence of magnetic activity on stellar properties and their evolution. Praesepe and the Hyades, two of the nearest, most-studied open clusters, are among the
Externí odkaz:
http://arxiv.org/abs/2205.06461
Autor:
Anthony, Francys, Núñez, Alejandro, Agüeros, Marcel A., Curtis, Jason L., Nascimento, Jr., J. -D. do, Machado, João M., Mann, Andrew W., Newton, Elisabeth R., Rampalli, Rayna, Thao, Pa Chia, Wood, Mackenna L.
The evolution of magnetism in late-type dwarfs remains murky, as we can only weakly predict levels of activity for M dwarfs of a given mass and age. We report results from our spectroscopic survey of M dwarfs in the Southern Continuous Viewing Zone (
Externí odkaz:
http://arxiv.org/abs/2204.04700
Autor:
Dong, Jiayin, Huang, Chelsea X., Zhou, George, Dawson, Rebekah I., Stefánsson, Gudmundur K., Bender, Chad F., Blake, Cullen H., Ford, Eric B., Halverson, Samuel, Kanodia, Shubham, Mahadevan, Suvrath, McElwain, Michael W., Ninan, Joe P., Robertson, Paul, Roy, Arpita, Schwab, Christian, Stevens, Daniel J., Terrien, Ryan C., Vanderburg, Andrew, Kraus, Adam L., Douglas, Stephanie, Newton, Elisabeth, Rampalli, Rayna, Krolikowski, Daniel M., Collins, Karen A., Rodriguez, Joseph E., Feliz, Dax L., Srdoc, Gregor, Ziegler, Carl, Barkaoui, Khalid, Pozuelos, Francisco J., Jehin, Emmanuel, Gillon, Michaël, Benkhaldoun, Zouhair, Lewin, Pablo, Forés-Toribio, Raquel, Muñoz, Jose A., McLeod, Kim K., Özyurt, Fiona Powers, Horta, Ferran Grau, Murgas, Felipe, Latham, David W., Quinn, Samuel N., Bieryla, Allyson, Howell, Steve B., Gnilka, Crystal L., Ciardi, David R., Lund, Michael B., Dressing, Courtney D., Giacalone, Steven, Savel, Arjun B., Strakhov, Ivan A., Belinski, Alexander A., Ricker, George R., Seager, S., Winn, Joshua N., Jenkins, Jon M., Torres, Guillermo, Paegert, Martin
Close-in gas giants present a surprising range of stellar obliquity, the angle between a planet's orbital axis and its host star's spin axis. It is unclear whether the obliquities reflect the planets' dynamical history (e.g., aligned for in situ form
Externí odkaz:
http://arxiv.org/abs/2201.12836
Large surveys are providing a diversity of spectroscopic observations with Gaia alone set to deliver millions of Ca-triplet-region spectra across the Galaxy. We aim to understand the dimensionality of the chemical abundance information in the Gaia-RV
Externí odkaz:
http://arxiv.org/abs/2108.02218
Autor:
Rampalli, Rayna, Agüeros, Marcel A., Curtis, Jason L., Douglas, Stephanie T., Núñez, Alejandro, Cargile, Phillip A., Covey, Kevin R., Gosnell, Natalie M., Kraus, Adam L., Law, Nicholas M., Mann, Andrew W.
We use three campaigns of K2 observations to complete the census of rotation in low-mass members of the benchmark, $\approx$670-Myr-old open cluster Praesepe. We measure new rotation periods (\prot) for 220 $\lesssim$1.3~\Msun\ Praesepe members and r
Externí odkaz:
http://arxiv.org/abs/2106.13250
Autor:
Watkins, Joseph D., Salzer, John J., Van Sistine, Angela, Hayslip, Ana, Hoar, Eric, Rampalli, Rayna
We present the fourth catalog of serendipitously discovered compact extragalactic emission-line sources -- H$\alpha$ Dots. A total of 454 newly discovered objects are included in the current survey list. These objects have been detected in searches o
Externí odkaz:
http://arxiv.org/abs/2101.08328