Zobrazeno 1 - 10
of 2 488
pro vyhledávání: '"Ninan, P. A."'
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:
Getman, Konstantin V., Feigelson, Eric D., Waggoner, Abygail R., Cleeves, L. Ilsedore, Forbrich, Jan, Ninan, Joe P., Kochukhov, Oleg, Airapetian, Vladimir S., Dzib, Sergio A., Law, Charles J., Rab, Christian
The most powerful stellar flares driven by magnetic energy occur during the early pre-main sequence (PMS) phase. The Orion Nebula represents the nearest region populated by young stars, showing the greatest number of flares accessible to a single poi
Externí odkaz:
http://arxiv.org/abs/2410.05126
Autor:
Bernabò, Lia Marta, Kanodia, Shubham, Canas, Caleb I., Cochran, William D., Csizmadia, Szilárd, Mahadevan, Suvrath, Stefánsson, Gudhmundur, Gupta, Arvind F., Monson, Andrew, Kobulnicky, Henry A., Larsen, Alexander K., Cotter, Ethan G., Birkholz, Alexina, Swaby, Tera N., Zeimann, Gregory, Bender, Chad F., Diddams, Scott A., Libby-Roberts, Jessica E., Lin, Andrea S. J., Ninan, Joe P., Rauer, Heike, Reji, Varghese, Robertson, Paul, Roy, Arpita, Schwab, Christian
We report on the discovery of a transiting giant planet around the 3500 K M3-dwarf star TOI-6383A located 172 pc from Earth. It was detected by the Transiting Exoplanet Survey Satellite (TESS) and confirmed by a combination of ground-based follow-up
Externí odkaz:
http://arxiv.org/abs/2409.16889
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:
Gilbertson, Christian, Ford, Eric B., Halverson, Samuel, Fitzmaurice, Evan, Blake, Cullen H., Stefánsson, Guðmundur, Mahadevan, Suvrath, Wright, Jason T., Luhn, Jacob K., Ninan, Joe P., Robertson, Paul, Roy, Arpita, Schwab, Christian, Terrien, Ryan C.
A significant barrier to achieving the radial velocity (RV) measurement accuracy and precision required to characterize terrestrial mass exoplanets is the existence of time-variable features in the measured spectra, from both telluric absorption and
Externí odkaz:
http://arxiv.org/abs/2408.17289
Autor:
Kanodia, Shubham, Gupta, Arvind F., Canas, Caleb I., Bernabo, Lia Marta, Reji, Varghese, Han, Te, Brady, Madison, Seifahrt, Andreas, Cochran, William D., Morrell, Nidia, Basant, Ritvik, Bean, Jacob, Bender, Chad F., de Beurs, Zoe L., Bieryla, Allyson, Birkholz, Alexina, Brown, Nina, Chapman, Franklin, Ciardi, David R., Clark, Catherine A., Cotter, Ethan G., Diddams, Scott A., Halverson, Samuel, Hawley, Suzanne, Hebb, Leslie, Holcomb, Rae, Howell, Steve B., Kobulnicky, Henry A., Kowalski, Adam F., Larsen, Alexander, Libby-Roberts, Jessica, Lin, Andrea S. J., Lund, Michael B., Luque, Rafael, Monson, Andrew, Ninan, Joe P., Parker, Brock A., Patel, Nishka, Rodruck, Michael, Ross, Gabrielle, Roy, Arpita, Schwab, Christian, Stefánsson, Guðmundur, Thoms, Aubrie, Vanderburg, Andrew
Transiting giant exoplanets around M-dwarf stars (GEMS) are rare, owing to the low-mass host stars. However, the all-sky coverage of TESS has enabled the detection of an increasingly large number of them to enable statistical surveys like the \textit
Externí odkaz:
http://arxiv.org/abs/2408.14694
Autor:
Siegel, Jared C., Halverson, Samuel, Luhn, Jacob K., Zhao, Lily L., Moulla, Khaled Al, Robertson, Paul, Bender, Chad F., Terrien, Ryan C., Roy, Arpita, Mahadevan, Suvrath, Hearty, Fred, Ninan, Joe P., Wright, Jason T., Ford, Eric B., Schwab, Christian, Stefánsson, Guðmundur, Blake, Cullen H., McElwain, Michael W.
For solar-type stars, spots and their associated magnetic regions induce radial velocity perturbations through the Doppler rotation signal and the suppression of convective blueshift -- collectively known as rotation-modulation. We developed the Rota
Externí odkaz:
http://arxiv.org/abs/2408.07121
Autor:
Beard, Corey, Robertson, Paul, Giovinazzi, Mark R., Murphy, Joseph M. Akana, Ford, Eric B., Halverson, Samuel, Han, Te, Holcomb, Rae, Lubin, Jack, Luque, Rafael, Premnath, Pranav, Bender, Chad F., Blake, Cullen H., Gong, Qian, Isaacson, Howard, Kanodia, Shubham, Li, Dan, Lin, Andrea S. J., Logsdon, 5 Sarah E., Lubar, Emily, McElwain, Michael W., Monson, Andrew, Ninan, Joe P., Rajagopal, Jayadev, Roy, Arpita, Schwab, Christian, Stefansson, Gudmundur, Terrien, Ryan C., Wright, Jason T.
We present a new analysis of Kepler-21, the brightest (V = 8.5) Kepler system with a known transiting exoplanet, Kepler-21 b. Kepler-21 b is a radius valley planet ($R = 1.6\pm 0.2 R_{\oplus}$) with an Earth-like composition (8.38$\pm$1.62 g/cc), tho
Externí odkaz:
http://arxiv.org/abs/2408.02873
Autor:
Sekhar, Pooja, Kreider, Molly Kate, Fredrick, Connor, Ninan, Joe P, Bender, Chad F, Terrien, Ryan, Mahadevan, Suvrath, Diddams, Scott A
The search for earth-like exoplanets with the Doppler radial velocity technique is an extremely challenging and multifaceted precision spectroscopy problem. Currently, one of the limiting instrumental factors in reaching the required long-term $10^{-
Externí odkaz:
http://arxiv.org/abs/2408.02627