Results 71 to 80 of about 625 (187)

Coronagraphic Data Post-processing Using Projections on Instrumental Modes

The Astrophysical Journal
Directly observing exoplanets with coronagraphs is impeded by the presence of speckles from aberrations in the optical path, which can be mitigated in hardware with wave front control, as well as in post-processing. This work explores using an instrument
Yinzi Xin, Laurent Pueyo, Romain Laugier, Leonid Pogorelyuk, Ewan S. Douglas, Benjamin J. S. Pope, Kerri L. Cahoy   +6 more
doaj   +1 more source

The TESS–Keck Survey. XXIV. Outer Giants May Be More Prevalent in the Presence of Inner Small Planets

The Astronomical Journal
We present the results of the Distant Giants Survey, a 3 yr radial velocity (RV) campaign to search for wide-separation giant planets orbiting Sun-like stars known to host an inner transiting planet.
Judah Van Zandt, Erik A. Petigura, Jack Lubin, Lauren M. Weiss, Emma V. Turtelboom, Tara Fetherolf, Joseph M. Akana Murphy, Ian J. M. Crossfield, Gregory J. Gilbert, Teo Močnik, Natalie M. Batalha, Courtney Dressing, Benjamin Fulton, Andrew W. Howard, Daniel Huber, Howard Isaacson, Stephen R. Kane, Paul Robertson, Arpita Roy, Isabel Angelo, Aida Behmard, Corey Beard, Ashley Chontos, Fei Dai, Steven Giacalone, Michelle L. Hill, Rae Holcomb, Steve B. Howell, Andrew W. Mayo, Daria Pidhorodetska, Alex S. Polanski, James Rogers, Lee J. Rosenthal, Ryan A. Rubenzahl, Nicholas Scarsdale, Dakotah Tyler, Samuel W. Yee, Jon Zink   +37 more
doaj   +1 more source

Accounting for Transit Timing Detectability: Biases in Planetary Radius and Orbital Period

The Astronomical Journal
Transit Timing Variations (TTVs) are deviations from the time an observer would expect to see an exoplanet transit its host star. In multiplanetary systems, significant TTVs may indicate the presence of another body in the system gravitationally ...
Skylar D’Angiolillo, Daniel Fabrycky, Mariah G. MacDonald   +2 more
doaj   +1 more source

TOI-6695: A Pair of Near-resonant Massive Planets Observed with TESS from the WINE Survey

The Astronomical Journal
We present the discovery and characterization of a pair of warm Jovian-mass exoplanets orbiting the Sun-like star TOI-6695, based on Transiting Exoplanet Survey Satellite (TESS) transits and precise radial velocity (RV) measurements obtained with FEROS ...
Jan Eberhardt, Trifon Trifonov, Thomas Henning, Marcelo Tala Pinto, Rafael Brahm, Andrés Jordán, Nestor Espinoza, Matías I. Jones, Melissa J. Hobson, Felipe I. Rojas, Martin Schlecker, Lorena Acuña, Remo Burn, Gavin Boyle, Rodrigo Leiva, James McCormac, Nicholas Dunckel, Diana Dragomir, Jeffrey D. Crane, Stephen Shectman, Johanna K. Teske, David Osip, Arvind F. Gupta, Solène Ulmer-Moll, François Bouchy, Monika Lendl, Davide Gandolfi, George R. Ricker, Jon M. Jenkins, Sara Seager, Joshua N. Winn   +30 more
doaj   +1 more source

Detection of Exoplanets with Machine Learning Techniques Through Transit Light-curve Analysis

The Astronomical Journal
Exoplanet detection is an active research area in astronomy. As the volume of astronomical data increases, there is a need for methods that can automate the data processing pipeline efficiently.
Mir Sakhawat Hossain, Md. Sadman
doaj   +1 more source

Direct exoplanet detection and characterization using the ANDROMEDA method: Performance on VLT/NaCo data [PDF]

, 2015
F. Cantalloube, D. Mouillet, L. M. Mugnier, J. Milli, O. Absil, C. A. Gomez Gonzalez, G. Chauvin, J.-L. Beuzit, A. Cornia   +8 more
openalex   +1 more source

TOI-4201: An Early M Dwarf Hosting a Massive Transiting Jupiter Stretching Theories of Core Accretion

The Astrophysical Journal Letters
We confirm TOI-4201 b as a transiting Jovian-mass planet orbiting an early M dwarf discovered by the Transiting Exoplanet Survey Satellite. Using ground-based photometry and precise radial velocities from NEID and the Planet Finder Spectrograph, we ...
Megan Delamer, Shubham Kanodia, Caleb I. Cañas, Simon Müller, Ravit Helled, Andrea S. J. Lin, Jessica E. Libby-Roberts, Arvind F. Gupta, Suvrath Mahadevan, Johanna Teske, R. Paul Butler, Samuel W. Yee, Jeffrey D. Crane, Stephen Shectman, David Osip, Yuri Beletsky, Andrew Monson, Leslie Hebb, Luke C. Powers, John P. Wisniewski, Jaime A. Alvarado-Montes, Chad F. Bender, Jiayin Dong, Te Han, Joe P. Ninan, Paul Robertson, Arpita Roy, Christian Schwab, Guđmundur Stefánsson, Jason T. Wright   +29 more
doaj   +1 more source

LEO-Vetter: Fully Automated Flux- and Pixel-level Vetting of TESS Planet Candidates to Support Occurrence Rates

The Astronomical Journal
The Transiting Exoplanet Survey Satellite (TESS) has identified several thousand planet candidates orbiting a wide variety of stars, and has provided an exciting opportunity for demographic studies.
Michelle Kunimoto, Steve Bryson, Drayson Jaffee, Jason F. Rowe, Tansu Daylan, Steven Giacalone, Jack J. Lissauer, Michael R. B. Matesic, Susan E. Mullally, Yoshi Nike Emilia Eschen   +9 more
doaj   +1 more source

Comparison of different exoplanet mass detection limit methods using a sample of main-sequence intermediate-type stars [PDF]

, 2012
N. Meunier, A.‐M. Lagrange, K. De Bondt   +2 more
openalex   +1 more source

Stellar activity as noise in exoplanet detection – I. Methods and application to solar-like stars and activity cycles [PDF]

, 2015
H. Korhonen, J. M. Andersen, N. Piskunov, T. Hackman, D. Juncher, S. P. Järvinen, U. Jørgensen   +6 more
openalex   +1 more source