Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Ramsey, Lawrence. W."'
Autor:
Fitzmaurice, Evan, Stefánsson, Gudmundur, Kavanagh, Robert D., Mahadevan, Suvrath, Cañas, Caleb I., Winn, Joshua N., Robertson, Paul, Ninan, Joe P., Albrecht, Simon, Callingham, J. R., Cochran, William D., Delamer, Megan, Kanodia, Shubham, Lin, Andrea S. J., Marcussen, Marcus L., Pope, Benjamin J. S., Ramsey, Lawrence W., Roy, Arpita, Vedantham, Harish, Wright, Jason T.
We characterize the LHS 1610 system, a nearby ($d=9.7$ pc) M5 dwarf hosting a brown dwarf in a $10.6$ day, eccentric ($e \sim 0.37$) orbit. A joint fit of the available Gaia two-body solution, discovery radial velocities (RVs) from TRES, and new RVs
Externí odkaz:
http://arxiv.org/abs/2310.07827
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:
Cañas, Caleb I., Kanodia, Shubham, Libby-Roberts, Jessica, Lin, Andrea S. J., Schutte, Maria, Powers, Luke, Jones, Sinclaire, Monson, Andrew, Wang, Songhu, Stefánsson, Guðmundur, Cochran, William D., Robertson, Paul, Mahadevan, Suvrath, Kowalski, Adam F., Wisniewski, John, Parker, Brock A., Larsen, Alexander, Chapman, Franklin A. L., Kobulnicky, Henry A., Gupta, Arvind F., Everett, Mark E., Penprase, Bryan Edward, Zeimann, Gregory, Beard, Corey, Bender, Chad F., Colón, Knicole D., Diddams, Scott A., Fredrick, Connor, Halverson, Samuel, Ninan, Joe P., Ramsey, Lawrence W., Roy, Arpita, Schwab, Christian
Publikováno v:
AJ, 166, 30 (2023)
We confirm the planetary nature of two gas giants discovered by TESS to transit M dwarfs with stellar companions at wide separations. TOI-3984 A ($J=11.93$) is an M4 dwarf hosting a short-period ($4.353326 \pm 0.000005$ days) gas giant ($M_p=0.14\pm0
Externí odkaz:
http://arxiv.org/abs/2302.07714
Autor:
Libby-Roberts, Jessica E., Schutte, Maria, Hebb, Leslie, Kanodia, Shubham, Canas, Caleb, Stefansson, Gudmundur, Lin, Andrea S. J., Mahadevan, Suvrath, Parts, Winter, Powers, Luke, Wisniewski, John, Bender, Chad F., Cochran, William D., Diddams, Scott A., Everett, Mark E., Gupta, Arvind F., Halverson, Samuel, Kobulnicky, Henry A., Kowalski, Adam F., Larsen, Alexander, Monson, Andrew, Ninan, Joe P., Parker, Brock A., Ramsey, Lawrence W., Robertson, Paul, Schwab, Christian, Swaby, Tera N., Terrien, Ryan C.
We perform an in-depth analysis of the recently validated TOI-3884 system, an M4 dwarf star with a transiting super-Neptune. Using high precision light curves obtained with the 3.5 m Apache Point Observatory and radial velocity observations with the
Externí odkaz:
http://arxiv.org/abs/2302.04757
Autor:
Lin, Andrea S. J., Libby-Roberts, Jessica E., Alvarado-Montes, Jaime A., Cañas, Caleb I., Kanodia, Shubham, Han, Te, Hebb, Leslie, Jensen, Eric L. N., Mahadevan, Suvrath, Powers, Luke C., Swaby, Tera N., Wisniewski, John, Beard, Corey, Bender, Chad F., Blake, Cullen H., Cochran, William D., Diddams, Scott A., Frazier, Robert C., Fredrick, Connor, Gully-Santiago, Michael, Halverson, Samuel, Logsdon, Sarah E., McElwain, Michael W., Morley, Caroline, Ninan, Joe P., Rajagopal, Jayadev, Ramsey, Lawrence W., Robertson, Paul, Roy, Arpita, Schwab, Christian, Stefánsson, Guðmundur, Stevens, Daniel J., Terrien, Ryan C., Wright, Jason T.
TOI-1899 b is a rare exoplanet, a temperate Warm Jupiter orbiting an M-dwarf, first discovered by Ca\~nas et al. (2020) from a TESS single-transit event. Using new radial velocities (RVs) from the precision RV spectrographs HPF and NEID, along with a
Externí odkaz:
http://arxiv.org/abs/2301.10837
Autor:
Kanodia, Shubham, Mahadevan, Suvrath, Libby-Roberts, Jessica, Stefansson, Gudmundur, Canas, Caleb I., Piette, Anjali A. A., Boss, Alan, Teske, Johanna, Chambers, John, Zeimann, Greg, Monson, Andrew, Robertson, Paul, Ninan, Joe P., Lin, Andrea S. J., Bender, Chad F., Cochran, William D., Diddams, Scott A., Gupta, Arvind F., Halverson, Samuel, Hawley, Suzanne, Kobulnicky, Henry A., Metcalf, Andrew J., Parker, Brock A., Powers, Luke, Ramsey, Lawrence W., Roy, Arpita, Schwab, Christian, Swaby, Tera N., Terrien, Ryan C., Wisniewski, John
Publikováno v:
AJ, 165, 120, 2023
We present the discovery of TOI-5205~b, a transiting Jovian planet orbiting a solar metallicity M4V star, which was discovered using Transiting Exoplanet Survey Satellite photometry and then confirmed using a combination of precise radial velocities,
Externí odkaz:
http://arxiv.org/abs/2209.11160
Autor:
Sneden, Christopher, Afsar, Melike, Bozkurt, Zeynep, Adamow, Monika, Mallick, Anohita, Reddy, Bacham E., Janowiecki, Steven, Mahadevan, Suvrath, Bowler, Brendan P., Hawkins, Keith, Lind, Karin, Dupree, Andrea K., Ninan, Joe P., Nagarajan, Neel, Topcu, Gamze Bocek, Froning, Cynthia S., Bender, Chad F., Terrien, Ryan, Ramsey, Lawrence W., Mace, Gregory N.
We have gathered near-infrared $zyJ$-band high resolution spectra of nearly 300 field red giant stars with known lithium abundances in order to survey their \species{He}{i} $\lambda$10830 absorption strengths. This transition is an indicator of chrom
Externí odkaz:
http://arxiv.org/abs/2209.05941
Autor:
Kanodia, Shubham, Libby-Roberts, Jessica, Canas, Caleb I., Ninan, Joe P., Mahadevan, Suvrath, Stefansson, Gudmundur, Lin, Andrea S. J., Jones, Sinclaire, Monson, Andrew, Parker, Brock A., Kobulnicky, Henry A., Swaby, Tera N., Powers, Luke, Beard, Corey, Bender, Chad F., Blake, Cullen H., Cochran, William D., Dong, Jiayin, Diddams, Scott A., Fredrick, Connor, Gupta, Arvind F., Halverson, Samuel, Hearty, Fred, Logsdon, Sarah E., Metcalf, Andrew J., McElwain, Michael W., Morley, Caroline, Rajagopal, Jayadev, Ramsey, Lawrence W., Robertson, Paul, Roy, Arpita, Schwab, Christian, Terrien, Ryan C., Wisniewski, John, Wright, Jason T.
Publikováno v:
The Astronomical Journal, Volume 164, Number 3 (2022 AJ 164 81)
We present the discovery of a new Jovian-sized planet, TOI-3757 b, the lowest density planet orbiting an M dwarf (M0V). It orbits a solar-metallicity M dwarf discovered using TESS photometry and confirmed with precise radial velocities (RV) from HPF
Externí odkaz:
http://arxiv.org/abs/2203.07178
Autor:
Terrien, Ryan C., Keen, Allison, Oda, Katy, Parts, Winter, Stefánsson, Guðmundur, Mahadevan, Suvrath, Robertson, Paul, Ninan, Joe P., Beard, Corey, Bender, Chad F., Cochran, William D., Cunha, Katia, Diddams, Scott A., Fredrick, Connor, Halverson, Samuel, Hearty, Fred, Ickler, Adam, Kanodia, Shubham, Libby-Roberts, Jessica E., Lubin, Jack, Metcalf, Andrew J., Olsen, Freja, Ramsey, Lawrence W., Roy, Arpita, Schwab, Christian, Smith, Verne V., Turner, Ben
Accurate tracers of the stellar magnetic field and rotation are cornerstones for the study of M dwarfs and for reliable detection and characterization of their exoplanetary companions. Such measurements are particularly challenging for old, slowly ro
Externí odkaz:
http://arxiv.org/abs/2201.11288
Autor:
Cañas, Caleb I., Kanodia, Shubham, Bender, Chad F., Mahadevan, Suvrath, Stefánsson, Guðmundur, Cochran, William D., Lin, Andrea S. J., Hwang, Hsiang-Chih, Powers, Luke, Monson, Andrew, Green, Elizabeth M., Parker, Brock A., Swaby, Tera N., Kobulnicky, Henry A., Wisniewski, John, Gupta, Arvind F., Everett, Mark E., Jones, Sinclaire, Anjakos, Benjamin, Beard, Corey, Blake, Cullen H., Diddams, Scott A., Dong, Zehao, Fredrick, Connor, Hakemiamjad, Elnaz, Hebb, Leslie, Libby-Roberts, Jessica E., Logsdon, Sarah E., McElwain, Michael W., Metcalf, Andrew J., Ninan, Joe P., Rajagopal, Jayadev, Ramsey, Lawrence W., Robertson, Paul, Roy, Arpita, Ruhle, Jacob, Schwab, Christian, Terrien, Ryan C., Wright, Jason T.
Publikováno v:
AJ, 164, 50 (2022)
We confirm the planetary nature of two gas giants discovered by TESS to transit M dwarfs. TOI-3714 ($V=15.24,~J=11.74$) is an M2 dwarf hosting a hot Jupiter ($M_p=0.70 \pm 0.03~\mathrm{M_J}$ and $R_p=1.01 \pm 0.03~\mathrm{R_J}$) on an orbital period
Externí odkaz:
http://arxiv.org/abs/2201.09963