Publications (19)
The Super-Puff WASP-193b is On A Well-Aligned Orbit
Samuel W. Yee, Gudmundur Stefansson, Daniel Thorngren +8
The "super-puffs" are a population of planets that have masses comparable to that of Neptune but radii similar to Jupiter, leading to extremely low bulk densities ($Ï_p \lesssim 0…
A Highly Eccentric Warm Jupiter Orbiting TIC 237913194
Martin Schlecker, Diana Kossakowski, Rafael Brahm +28
The orbital parameters of warm Jupiters serve as a record of their formation history, providing constraints on formation scenarios for giant planets on close and intermediate orbit…
Photometry of the Didymos system across the DART impact apparition
Nicholas Moskovitz, Cristina Thomas, Petr Pravec +78
On 26 September 2022, the Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, the satellite of binary near-Earth asteroid (65803) Didymos. This demonstrated the…
TOI-150b and TOI-163b: two transiting hot Jupiters, one eccentric and one inflated, revealed by TESS near and at the edge of the JWST CVZ
Diana Kossakowski, Néstor Espinoza, Rafael Brahm +51
We present the discovery of TYC9191-519-1b (TOI-150b, TIC 271893367) and HD271181b (TOI-163b, TIC 179317684), two hot Jupiters initially detected using 30-minute cadence Transiting…
proto-Lightspeed: a high-speed, ultra-low read noise imager on the Magellan Clay Telescope
Christopher Layden, Kevin Burdge, Gabor Furesz +9
proto-Lightspeed is a new instrument that has been commissioned on the Nasmyth East port of the Magellan Clay Telescope at Las Campanas Observatory to deliver high-speed optical im…
K2-287b: an Eccentric Warm Saturn transiting a G-dwarf
Andrés Jordán, Rafael Brahm, Néstor Espinoza +23
We report the discovery of K2-287b, a Saturn mass planet orbiting a G-dwarf with a period of days. First uncovered as a candidate using K2 campaign 15 data, follow-u…
The T16 Planet Hunt: 10,000 New Planet Candidates from TESS Cycle 1 and the Confirmation of a Hot Jupiter Around TIC 183374187
Joshua T. Roth, Joel D. Hartman, Gáspár Ã. Bakos +12
The T16 project has produced a uniformly detrended and systematics-corrected set of 83,717,159 TESS Cycle 1 full-frame image light curves for stars observed by TESS in its primary…
Rotational Characterization of Hayabusa II Target Asteroid (162173) 1999 JU3
Nicholas Moskovitz, Shinsuke Abe, Kang-Shian Pan +9
The Japanese Space Agency's Hayabusa II mission is scheduled to rendezvous with and return a sample from the near-Earth asteroid (162173) 1999 JU3. Previous visible-wavelength spec…
The Lightspeed project: high-speed, ultra-low read noise imaging and polarimetry for the Magellan telescopes
Christopher Layden, Kevin Burdge, John J. Piotrowski +12
Lightspeed will be an ultra-fast (> kHz), ultra-low read noise, multicolor (ugriz + IR) imager for the 6.5 meter Magellan Clay telescope. In a single-channel configuration, Lightsp…
Discovery and Characterization of an Eccentric, Warm Saturn Transiting the Solar Analog TOI-4994
Romy Rodriguez Martinez, Jason D. Eastman, Karen Collins +46
We present the detection and characterization of TOI-4994b (TIC 277128619b), a warm Saturn-sized planet discovered by the NASA Transiting Exoplanet Survey Satellite (TESS). TOI-499…
Ejecta Evolution Following a Planned Impact into an Asteroid: The First Five Weeks
Theodore Kareta, Cristina Thomas, Jian-Yang Li +85
The impact of the DART spacecraft into Dimorphos, moon of the asteroid Didymos, changed Dimorphos' orbit substantially, largely from the ejection of material. We present results fr…
Evidence for Low-Level Dynamical Excitation in Near-Resonant Exoplanet Systems
Malena Rice, Xian-Yu Wang, Songhu Wang +18
The geometries of near-resonant planetary systems offer a relatively pristine window into the initial conditions of exoplanet systems. Given that near-resonant systems have likely…
A New Merging Double Degenerate Binary in the Solar Neighborhood
John H. Debes, Mukremin Kilic, Pier-Emmanuel Tremblay +5
Characterizing the local space density of double degenerate binary systems is a complementary approach to broad sky surveys of double degenerates to determine the expected rates of…
TOI-2005b: An Eccentric Warm Jupiter in Spin-Orbit Alignment
Allyson Bieryla, Jiayin Dong, George Zhou +36
We report the discovery and characterization of TOI-2005b, a warm Jupiter on an eccentric (e~0.59), 17.3-day orbit around a V_mag = 9.867 rapidly rotating F-star. The object was de…
Discovery of an Inflated Hot Neptune and Its Formation from Jovian Mass Loss
Grant C. Weldon, Samuel W. Yee, Bradley M. S. Hansen +17
The production of Neptune-like planets with orbital periods of 3--6 days is challenging for conventional models of high-eccentricity migration. We present the discovery and charact…
TOI-4201: An Early M-dwarf Hosting a Massive Transiting Jupiter Stretching Theories of Core-Accretion
Megan Delamer, Shubham Kanodia, Caleb I. Cañas +24
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 precis…
Destruction of "Peas in a Pod?" A Candidate Multi-planet System Around the Nearby, Bright Star, HD208487
Rafael I. Rubenstein, James S. Jenkins, Pablo A. Peña R. +15
We re-investigate the HD208487 system to test the reality of the proposed HD208487c world. We also search for additional companions using applied Bayesian statistics and 15+ years…
HD 35843: A Sun-like star hosting a long period sub-Neptune and inner super-Earth
Katharine Hesse, Ismael Mireles, François Bouchy +52
We report the discovery and confirmation of two planets orbiting the metal-poor Sun-like star, HD 35843 (TOI 4189). HD 35843 c is a temperate sub-Neptune transiting planet with an…
TOI-2374 b and TOI-3071 b: two metal-rich sub-Saturns well within the Neptunian desert
Alejandro Hacker, Rodrigo F. DÃaz, David J. Armstrong +40
We report the discovery of two transiting planets detected by the Transiting Exoplanet Survey Satellite (TESS), TOI-2374 b and TOI-3071 b, orbiting a K5V and an F8V star, respectiv…