Results 91 to 100 of about 14,838,227 (209)

HARPS-N @ TNG, two year harvesting data : performances and results [PDF]

, 2014
The planet hunter HARPS-N[1], in operation at the Telescopio Nazionale Galileo (TNG)[13] from April 2012 is a highresolution spectrograph designed to achieve a very high radial velocity precision measurement thanks to an ultra stable environment and in a
Latham, D.W., Ian Hughes, David Henry, Bezawada, N., Fatemeh Motalebi, Glenday, A.G., Emilio Molinari, Michel Fleury, Pepe, F., Charles Maire, Phillips, D.F., Rosario Cosentino, Manuel Gonzalez, Figueira, P., Nicolas Buchschacher, Fleury, M., Gonzalez, M., Udry, S., Andrew C. Cameron, Cosentino, R., Francesco Pepe, Stephane Udry, Alexander G. Glenday, Pedro Figueira, Henry, D., Naidu Bezawada, Molinari, E., Adriano Ghedina, David Forrest Phillips, Maire, C., David W. Latham, Hughes, I., Jose Guerra, Christophe Lovis, Buchschacher, N., Motalebi, F., Lovis, C., Cameron, A.C., Guerra, J., Ghedina, A., Cameron, A.C.; id_orcid   +40 more
core   +1 more source

Modeling Exoplanet Demographics Across Detection Methods

Exoplanet demographics leverages large-scale survey data to give us population-level in- sight to questions of planet formation, evolution, and habitability.
Bergsten, Galen Justice
core   +5 more sources

The NEID Earth Twin Survey. III. Survey Performance after Three Years on Sky

The Astronomical Journal
The NEID Earth Twin Survey (NETS) has been delivering a rich set of precise radial velocity (RV) measurements for 41 bright, nearby main-sequence stars.
Arvind F. Gupta, Evan Fitzmaurice, Suvrath Mahadevan, Paul Robertson, Jacob K. Luhn, Jason T. Wright, Sarah E. Logsdon, Daniel M. Krolikowski, Leonardo A. Paredes, Chad F. Bender, Mark R. Giovinazzi, Andrea S.J. Lin, Cullen H. Blake, Caleb I. Cañas, Eric B. Ford, Samuel Halverson, Shubham Kanodia, Michael W. McElwain, Andrew Monson, Joe P. Ninan, Jayadev Rajagopal, Arpita Roy, Christian Schwab, Guðmundur Stefánsson, Ryan C. Terrien   +24 more
doaj   +1 more source

A Candidate Giant Planet Companion to the Massive, Young White Dwarf GALEX J071816.4+373139 Informs the Occurrence of Giant Planets Orbiting B Stars

The Astronomical Journal
It has been suggested that giant planet occurrence peaks for stars with M _*  ≈ 3 M _⊙ at a value a factor of 4 higher than observed for solar-mass stars.
Sihao Cheng, Kevin C. Schlaufman, Ilaria Caiazzo   +2 more
doaj   +1 more source

HD 164604 c: A Second Giant Planet on a 15 Yr Orbit and Constraints on the Planet–Planet Mutual Inclination

The Astronomical Journal
We report the discovery of a new massive giant planet, HD 164604 c ( ${a}_{c}=5.55{6}_{-0.10}^{+0.093}$ au, ${e}_{c}=0.19{6}_{-0.078}^{+0.078}$ , and ${m}_{c}=9.{5}_{-1.25}^{+1.2}$ , or $7.{6}_{-1.0}^{+1.0}\,{M}_{{\rm{Jup}}}$ ), orbiting a K3.5 dwarf ...
Guang-Yao Xiao, Fabo Feng, R. Paul Butler, Johanna K. Teske, Stephen A. Shectman, Jeffrey D. Crane, Sharon X. Wang   +6 more
doaj   +1 more source

The Interpolation Constraint in the RV Analysis of M Dwarfs Using Empirical Templates

The Astronomical Journal
Precise radial velocity (pRV) measurements of M dwarfs in the near-infrared rely on empirical templates due to the lack of accurate stellar spectral models in this regime.
Dhvani Doshi, Nicolas B. Cowan, Étienne Artigau, René Doyon, André M. Silva, Khaled Al Moulla, Yashar Hezaveh   +6 more
doaj   +1 more source

New Orbital Constraints for YSES 1 b and HR 2562 B from High-Precision Astrometry and Planetary Radial Velocities

The Astronomical Journal
We present new VLTI/GRAVITY astrometry and updated orbit fits for the directly imaged companions YSES 1 b and HR 2562 B, substellar objects straddling the planet–brown-dwarf boundary.
Jonathan Roberts, William Thompson, Jason J. Wang, Sarah Blunt, William O. Balmer, Guillaume Bourdarot, Brendan P. Bowler, Gael Chauvin, Frank Eisenhauer, Thomas K. Henning, Jens Kammerer, Flavien Kiefer, Matthew A. Kenworthy, Pierre Kervella, Sylvestre Lacour, A.-M. Lagrange, Eric L. Nielsen, Laurent Pueyo, Emily Rickman, Olli Sipilä, Silvia Spezzano, Tomas Stolker, Alice Zurlo   +22 more
doaj   +1 more source

COUNTESS. I. A Uniformly Vetted Catalog of Known and New Transiting Exoplanets in the TESS Northern Continuous Viewing Zone

The Astrophysical Journal Supplement Series
The Transiting Exoplanet Survey Satellite (TESS) has transformed the study of nearby exoplanetary systems; however, its nominal observing strategy limits sensitivity to planets with orbital periods shorter than ∼10 days for most parts of the sky. The two
Andrew Hotnisky, Rachel B. Fernandes, Kevin K. Hardegree-Ullman, Steven Giacalone, Kiersten M. Boley, Kristo Ment, Michelle Kunimoto, Galen J. Bergsten, Sakhee Bhure, Jessie L. Christiansen, Brandon Radzom, Suvrath Mahadevan   +11 more
doaj   +1 more source

A Pair of Dynamically Interacting Sub-Neptunes around TOI-6054

The Astronomical Journal
We confirm the planetary nature of a pair of transiting sub-Neptune exoplanets orbiting the bright F-type subgiant star TOI-6054 ( V = 8.02, K = 6.673) as a part of the OrCAS radial velocity survey using WIYN/NEID observations. We find that TOI-6054b and
Maxwell A. Kroft, Thomas G. Beatty, Ian J. M. Crossfield, Joseph R. Livesey, Juliette Becker, Jacob K. Luhn, Paul Robertson, Allyson Bieryla, David R. Ciardi, Catherine A. Clark, Maria V. Goliguzova, Steve B. Howell, Jack J. Lissauer, Colin Littlefield, Michael B. Lund, Boris S. Safonov, Joseph M. Akana Murphy, Natalie M. Batalha, Malik Bossett, Jonathan Brande, Tansu Daylan, Courtney Dressing, Anna Gagnebin, Daniel Huber, Howard Isaacson, Stephen R. Kane, Laura Kreidberg, David W. Latham, Rafael Luque, Alex S. Polanski, Pranav H. Premnath, Maleah Rhem, Claire J. Rogers, Emma V. Turtelboom   +33 more
doaj   +1 more source

Revised Masses for Low-density Planets Orbiting the Disordered M-dwarf System TOI-1266

The Astronomical Journal
We present an analysis of 126 new radial velocity measurements from the MAROON-X spectrograph to investigate the TOI-1266 system, which hosts two known transiting sub-Neptunes at 10.8 and 18.8 days.
Dakotah Tyler, Erik A. Petigura, James Rogers, Jack Lubin, Andreas Seifhart, Jacob L. Bean, Madison Brady, Rafael Luque   +7 more
doaj   +1 more source