1.6k citations · 4.4k across the 33 of their papers we have counts for
13 papers · 1 filter
Transit timing variations of AU Microscopii b and c
Gy. M. Szabó, Z. Garai, A. Brandeker +76
Here we report large-amplitude transit timing variations (TTVs) for AU\,Microcopii b and c as detected in combined TESS (2018, 2020) and CHEOPS (2020, 2021) transit observations. A…
Refining the transit timing and photometric analysis of TRAPPIST-1: Masses, radii, densities, dynamics, and ephemerides
Eric Agol, Caroline Dorn, Simon L. Grimm +32
We have collected transit times for the TRAPPIST-1 system with the Spitzer Space Telescope over four years. We add to these ground-based, HST and K2 transit time measurements, and…
TRAPPIST-1: Global Results of the Spitzer Exploration Science Program {\it Red Worlds}
Elsa Ducrot, M. Gillon, L. Delrez +18
With more than 1000 hours of observation from Feb 2016 to Oct 2019, the Spitzer Exploration Program Red Worlds (ID: 13067, 13175 and 14223) exclusively targeted TRAPPIST-1, a nearb…
The Transiting Exoplanet Community Early Release Science Program for JWST
Jacob L. Bean, Kevin B. Stevenson, Natalie M. Batalha +99
The James Webb Space Telescope (JWST) presents the opportunity to transform our understanding of planets and the origins of life by revealing the atmospheric compositions, structur…
The nature of the TRAPPIST-1 exoplanets
Simon L. Grimm, Brice-Olivier Demory, Michaël Gillon +23
Context. The TRAPPIST-1 system hosts seven Earth-sized, temperate exoplanets orbiting an ultra-cool dwarf star. As such, it represents a remarkable setting to study the formation a…
Early 2017 observations of TRAPPIST-1 with
Laetitia Delrez, Michael Gillon, Amaury H. M. J. Triaud +14
The recently detected TRAPPIST-1 planetary system, with its seven planets transiting a nearby ultracool dwarf star, offers the first opportunity to perform comparative exoplanetolo…
The Science Case for an Extended Spitzer Mission
Jennifer C. Yee, Giovanni G. Fazio, Robert Benjamin +45
Although the final observations of the Spitzer Warm Mission are currently scheduled for March 2019, it can continue operations through the end of the decade with no loss of photome…
Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1
Michael Gillon, Amaury H. M. J. Triaud, Brice-Olivier Demory +27
One focus of modern astronomy is to detect temperate terrestrial exoplanets well-suited for atmospheric characterisation. A milestone was recently achieved with the detection of th…
A seven-planet resonant chain in TRAPPIST-1
Rodrigo Luger, Marko Sestovic, Ethan Kruse +30
The TRAPPIST-1 system is the first transiting planet system found orbiting an ultra-cool dwarf star. At least seven planets similar to Earth in radius and in mass were previously f…
Spitzer Secondary Eclipse Depths with Multiple Intrapixel Sensitivity Correction Methods: Observations of WASP-13b, WASP-15b, WASP-16b, WASP-62b, and HAT-P-22b
Brian M. Kilpatrick, Nikole K. Lewis, Tiffany Kataria +4
We measure the 4.5 m thermal emission of five transiting hot Jupiters, WASP-13b, WASP-15b, WASP-16b, WASP-62b and HAT-P-22b using channel 2 of the Infrared Array Camera (IRAC) o…
Spitzer Space Telescope Mid-IR Light Curves of Neptune
J. R. Stauffer, M. S. Marley, J. E. Gizis +9
We have used the Spitzer Space Telescope in February 2016 to obtain high cadence, high signal-to-noise, 17-hour duration light curves of Neptune at 3.6 and 4.5 m. The light curv…
Spitzer IRAC Sparsely Sampled Phase Curve of the Exoplanet WASP-14b
J. E. Krick, J. Ingalls, S. Carey +6
Motivated by a high Spitzer IRAC oversubscription rate, we present a new technique of randomly and sparsely sampling phase curves of hot Jupiters. Snapshot phase curves are enabled…
Spitzer Secondary Eclipses of the Dense, Modestly-irradiated, Giant Exoplanet HAT-P-20b Using Pixel-Level Decorrelation
Drake Deming, Heather Knutson, Joshua Kammer +13
HAT-P-20b is a giant exoplanet that orbits a metal-rich star. The planet itself has a high total density, suggesting that it may also have a high metallicity in its atmosphere. We…