Zobrazeno 1 - 10
of 138
pro vyhledávání: '"Logsdon, Sarah E"'
Autor:
Placco, Vinicius M., Gupta, Arvind F., Almeida-Fernandes, Felipe, Logsdon, Sarah E., Rajagopal, Jayadev, Holmbeck, Erika M., Roederer, Ian U., Della Costa, John, Fernandez, Pipa, Golub, Eli, Higuera, Jesus, Patel, Yatrik, Ridgway, Susan, Schweiker, Heidi
In this work, we present high-resolution (R~100,000), high signal-to-noise (S/N~800) spectroscopic observations for the well-known, bright, extremely metal-poor, carbon-enhanced star BD+44 493. We determined chemical abundances and upper limits for 1
Externí odkaz:
http://arxiv.org/abs/2410.08943
Autor:
Stefansson, Gudmundur, Mahadevan, Suvrath, Winn, Joshua, Marcussen, Marcus, Kanodia, Shubham, Albrecht, Simon, Fitzmaurice, Evan, Mikulskitye, One, Cañas, Caleb, Espinoza-Retamal, Juan Ignacio, Zwart, Yiri, Krolikowski, Daniel, Hotnisky, Andrew, Robertson, Paul, Alvarado-Montes, Jaime A., Bender, Chad, Blake, Cullen, Callingham, Joe, Cochran, William, Delamer, Megan, Diddams, Scott, Dong, Jiayin, Fernandes, Rachel, Giovanazzi, Mark, Halverson, Samuel, Libby-Roberts, Jessica, Logsdon, Sarah E, McElwain, Michael, Ninan, Joe, Rajagopal, Jayadev, Reji, Varghese, Roy, Arpita, Schwab, Christian, Wright, Jason
Gaia astrometry of nearby stars is precise enough to detect the tiny displacements induced by substellar companions, but radial velocity data are needed for definitive confirmation. Here we present radial velocity follow-up observations of 28 M and K
Externí odkaz:
http://arxiv.org/abs/2410.05654
Autor:
Gupta, Arvind F., Luhn, Jacob K., Wright, Jason T., Mahadevan, Suvrath, Robertson, Paul, Krolikowski, Daniel M., Ford, Eric B., Cañas, Caleb I., Halverson, Samuel, Lin, Andrea S. J., Kanodia, Shubham, Fitzmaurice, Evan, Gilbertson, Christian, Bender, Chad F., Blake, Cullen H., Dong, Jiayin, Giovinazzi, Mark R., Logsdon, Sarah E., Monson, Andrew, Ninan, Joe P., Rajagopal, Jayadev, Roy, Arpita, Schwab, Christian, Stefánsson, Guðmundur
With close to three years of observations in hand, the NEID Earth Twin Survey (NETS) is starting to unearth new astrophysical signals for a curated sample of bright, radial velocity (RV)-quiet stars. We present the discovery of the first NETS exoplan
Externí odkaz:
http://arxiv.org/abs/2409.12315
Autor:
Reji, Varghese, Kanodia, Shubham, Ninan, Joe, Cañas, Caleb I., Libby-Roberts, Jessica, Lin, Andrea S. J., Gupta, Arvind F, Sewaby, Tera N., Larsen, Alexander, Kobulnicky, Henry A., Choi, Philip I., Evans, Nez, Santomenna, Sage, Winnick, Isabelle, Yu, Larry, Alvarado-Montes, Jaime A., Bender, Chad, Bernabò, Lia Marta, Blake, Cullen H., Cochran, William D., Diddams, Scott A., Halverson, Samuel, Han, Te, Hearty, Fred, Logsdon, Sarah E., Mahadevan, Suvrath, Monson, Andrew, McElwain, Michael, Robertson, Paul, Ojha, Devendra, Roy, Arpita, Schwab, Christian, Stefansson, Gudmundur, Wright, Jason
We present the discovery of a low-density planet transiting TOI-5688 A b, a high-metallicity M2V star. This planet was discovered as part of the search for transiting giant planets ($R \gtrsim8$ M$_\oplus$) through the Searching for GEMS (Giant Exopl
Externí odkaz:
http://arxiv.org/abs/2409.01371
Autor:
Ford, Eric B., Bender, Chad F., Blake, Cullen H., Gupta, Arvind F., Kanodia, Shubham, Lin, Andrea S. J., Logsdon, Sarah E., Luhn, Jacob K., Mahadevan, Suvrath, Palumbo III, Michael L., Terrien, Ryan C., Wright, Jason T., Zhao, Jinglin, Halverson, Samuel, Hunting, Emily, Robertson, Paul, Roy, Arpita, Stefansson, Gudmundur
We present the results of Sun-as-a-star observations by the NEID Solar Telescope at WIYN Observatory, spanning January 1, 2021 through June 30, 2024. We identify 117,060 observations which are unlikely to be significantly affected by weather, hardwar
Externí odkaz:
http://arxiv.org/abs/2408.13318
Autor:
Wang, Xian-Yu, Rice, Malena, Wang, Songhu, Kanodia, Shubham, Dai, Fei, Logsdon, Sarah E., Schweiker, Heidi, Teske, Johanna K., Butler, R. Paul, Crane, Jeffrey D., Shectman, Stephen A., Quinn, Samuel N., Kostov, Veselin B., Osborn, Hugh P., Goeke, Robert F., Eastman, Jason D., Shporer, Avi, Rapetti, David, Collins, Karen A., Watkins, Cristilyn, Relles, Howard M., Ricker, George R., Seager, Sara, Winn, Joshua N., Jenkins, Jon M.
The stellar obliquity distribution of warm-Jupiter systems is crucial for constraining the dynamical history of Jovian exoplanets, as the warm Jupiters' tidal detachment likely preserves their primordial obliquity. However, the sample size of warm-Ju
Externí odkaz:
http://arxiv.org/abs/2408.10038
Autor:
Yoshida, Stephanie, Vissapragada, Shreyas, Latham, David W., Bieryla, Allyson, Thorngren, Daniel P., Eastman, Jason D., López-Morales, Mercedes, Barkaoui, Khalid, Beichmam, Charles, Berlind, Perry, Buchave, Lars A., Calkins, Michael L., Ciardi, David R., Collins, Karen A., Cosentino, Rosario, Crossfield, Ian J. M., Dai, Fei, DiTomasso, Victoria, Dowling, Nicholas, Esquerdo, Gilbert A., Forés-Toribio, Raquel, Ghedina, Adriano, Goliguzova, Maria V., Golub, Eli, Gonzales, Erica J., Horta, Ferran Grau, Higuera, Jesus, Hoch, Nora, Horne, Keith, Howell, Steve B., Jenkins, Jon M., Klusmeyer, Jessica, Laloum, Didier, Lissauer, Jack J., Logsdon, Sarah E., Malavolta, Luca, Matson, Rachel A., Matthews, Elisabeth C., McLeod, Kim K., Medina, Jennifer V., Muñoz, Jose A., Osborn, Hugh P., Safonov, Boris, Schlieder, Joshua, Schmidt, Michael, Schweiker, Heidi, Seager, Sara, Sozzetti, Alessandro, Srdoc, Gregor, Stefánsson, Guđmundur, Strakhov, Ivan A., Striegel, Stephanie, Villaseñor, Joel, Winn, Joshua N.
We present the discovery of TOI-1420b, an exceptionally low-density ($\rho = 0.08\pm0.02$ g cm$^{-3}$) transiting planet in a $P = 6.96$ day orbit around a late G dwarf star. Using transit observations from TESS, LCOGT, OPM, Whitin, Wendelstein, OAUV
Externí odkaz:
http://arxiv.org/abs/2309.09945
Autor:
Zhao, Lily L., Dumusque, Xavier, Ford, Eric B., Llama, Joe, Mortier, Annelies, Bedell, Megan, Moulla, Khaled Al, Bender, Chad F., Blake, Cullen H., Brewer, John M., Cameron, Andrew Collier, Cosentino, Rosario, Figueira, Pedro, Fischer, Debra A., Ghedina, Adriano, Gonzalez, Manuel, Halverson, Samuel, Kanodia, Shubham, Latham, David W., Lin, Andrea S. J., Curto, Gaspare Lo, Lodi, Marcello, Logsdon, Sarah E., Lovis, Christophe, Mahadevan, Suvrath, Monson, Andrew, Ninan, Joe P., Pepe, Francesco, Roettenbacher, Rachael M., Roy, Arpita, Santos, Nuno C., Schwab, Christian, Stefánsson, Guðmundur, Szymkowiak, Andrew E., Terrien, Ryan C., Udry, Stephane, Weiss, Sam A., Wildi, François, Wildi, Thibault, Wright, Jason T.
We present an analysis of Sun-as-a-star observations from four different high-resolution, stabilized spectrographs -- HARPS, HARPS-N, EXPRES, and NEID. With simultaneous observations of the Sun from four different instruments, we are able to gain ins
Externí odkaz:
http://arxiv.org/abs/2309.03762
Autor:
Kanodia, Shubham, Lin, Andrea S. J., Lubar, Emily, Halverson, Samuel, Mahadevan, Suvrath, Bender, Chad F., Logsdon, Sarah E., Ramsey, Lawrence W., Ninan, Joe P., Stefansson, Gudmundur, Monson, Andrew, Schwab, Christian, Roy, Arpita, Paredes, Leonardo A., Golub, Eli, Higuera, Jesus, Klusmeyer, Jessica, McBride, William, Blake, Cullen, Diddams, Scott A., Grise, Fabien, Gupta, Arvind F., Hearty, Fred, McElwain, Michael W., Rajagopal, Jayadev, Robertson, Paul, Terrien, Ryan
NEID is a high-resolution red-optical precision radial velocity (RV) spectrograph recently commissioned at the WIYN 3.5 m telescope at Kitt Peak National Observatory, Arizona, USA. NEID has an extremely stable environmental control system, and spans
Externí odkaz:
http://arxiv.org/abs/2307.12403
Autor:
Dong, Jiayin, Wang, Songhu, Rice, Malena, Zhou, George, Huang, Chelsea X., Dawson, Rebekah I., Stefánsson, Gudmundur K., Halverson, Samuel, Kanodia, Shubham, Mahadevan, Suvrath, McElwain, Michael W., Alvarado-Montes, Jaime A., Ninan, Joe P., Robertson, Paul, Roy, Arpita, Schwab, Christian, Logsdon, Sarah E., Terrien, Ryan C., Collins, Karen A., Srdoc, Gregor, Sefako, Ramotholo, Laloum, Didier, Latham, David W., Bieryla, Allyson, Dalba, Paul A., Dragomir, Diana, Villanueva Jr., Steven, Howell, Steve B., Ricker, George R., Seager, S., Winn, Joshua N., Jenkins, Jon M., Shporer, Avi, Rapetti, David
Warm Jupiters are close-in giant planets with relatively large planet-star separations (i.e., $10< a/R_\star <100$). Given their weak tidal interactions with their host stars, measurements of stellar obliquity may be used to probe the initial obliqui
Externí odkaz:
http://arxiv.org/abs/2305.16495