4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, Santa CruzUS948 papers
- Space Telescope Science InstituteUS207 papers
- Center for Astrophysics Harvard & SmithsonianUS153 papers
- Max Planck Institute for AstronomyDE138 papers
- University of ArizonaUS127 papers
- University of California, BerkeleyUS127 papers
- California Institute of TechnologyUS126 papers
- Carnegie ObservatoriesUS120 papers
- Carnegie Institution for ScienceUS113 papers
- Swinburne University of TechnologyAU107 papers
- European Southern ObservatoryCL103 papers
- Yale UniversityUS94 papers
41 papers · 1 filter
The Science Potential of Characterizing Gas Giant Exoplanets with HWO
Beck Dacus, Jean-Baptiste Ruffio, Quinn Konopacky +19
With the ability to directly image Earth-like exoplanets and search their atmospheres for biosignatures, the upcoming Habitable Worlds Observatory (HWO) will also collect high sign…
Measuring the Orbital Parameters of Radial Velocity Systems in Mean Motion Resonance---a Case Study of HD 200964
M. M. Rosenthal, W. Jacobson-Galan, B. Nelson +8
The presence of mean motion resonances (MMRs) complicates analysis and fitting of planetary systems observed through the radial velocity (RV) technique. MMR can allow planets to re…
Signatures of a planet-planet impacts phase in exoplanetary systems hosting giant planets
Renata Frelikh, Hyerin Jang, Ruth A. Murray-Clay +1
Exoplanetary systems host giant planets on substantially non-circular, close-in orbits. We propose that these eccentricities arise in a phase of giant impacts, analogous to the fin…
New Formation Models for the Kepler-36 System
Peter Bodenheimer, David J. Stevenson, Jack J. Lissauer +1
Formation of the planets in the Kepler-36 system is modeled by detailed numerical simulations according to the core-nucleated accretion scenario. The standard model is updated to i…
Simulating the M-R Relation from APF follow up of TESS targets: Survey design and strategies for overcoming mass biases
Jennifer Burt, Bradford P. Holden, Angie Wolfgang +1
We present simulations of multi-year RV follow up campaigns of the {\it TESS} small exoplanet yield on the Automated Planet Finder telescope, using four different schemes to sample…
GPI spectra of HR 8799 c, d, and e from 1.5 to 2.4m with KLIP Forward Modeling
Alexandra Z. Greenbaum, Laurent Pueyo, Jean-Baptiste Ruffio +51
We explore KLIP forward modeling spectral extraction on Gemini Planet Imager coronagraphic data of HR 8799, using PyKLIP and show algorithm stability with varying KLIP parameters.…
The test case of HD26965: difficulties disentangling weak Doppler signals from stellar activity
Matías R. Díaz, James S. Jenkins, Mikko Tuomi +9
We report the discovery of a radial velocity signal that can be interpreted as a planetary-mass candidate orbiting the K dwarf HD26965, with an orbital period of 42.3640.015 d…
1 to 2.4 micron Near-IR spectrum of the Giant Planet Pictoris b obtained with the Gemini Planet Imager
Jeffrey Chilcote, Laurent Pueyo, Robert J. De Rosa +61
Using the Gemini Planet Imager (GPI) located at Gemini South, we measured the near-infrared (1.0-2.4 micron) spectrum of the planetary companion to the nearby, young star Picto…
The LCES HIRES/Keck Precision Radial Velocity Exoplanet Survey
R. Paul Butler, Steven S. Vogt, Gregory Laughlin +8
We describe a 20-year survey carried out by the Lick-Carnegie Exoplanet Survey Team (LCES), using precision radial velocities from HIRES on the Keck-I telescope to find and charact…
A Goldilocks principle for modeling radial velocity noise
Fabo Feng, M. Tuomi, H. R. A. Jones +2
The doppler measurements of stars are diluted and distorted by stellar activity noise. Different choices of noise models and statistical methods have led to much controversy in the…
Free-floating planets from core accretion theory: microlensing predictions
Sizheng Ma, Shude Mao, Shigeru Ida +2
We calculate the microlensing event rate and typical time-scales for the free-floating planet (FFP) population that is predicted by the core accretion theory of planet formation. T…
The Lick-Carnegie Exoplanet Survey: HD32963 -- A New Jupiter Analog Orbiting a Sun-like Star
Dominick Rowan, Stefano Meschiari, Gregory Laughlin +10
We present a set of 109 new, high-precision Keck/HIRES radial velocity (RV) observations for the solar-type star HD 32963. Our dataset reveals a candidate planetary signal with a p…
No evidence for activity correlations in the radial velocities of Kapteyn's star
Guillem Anglada-Escudé, Mikko Tuomi, Pamela Arriagada +19
Stellar activity may induce Doppler variability at the level of a few m/s which can then be confused by the Doppler signal of an exoplanet orbiting the star. To first order, linear…
The First H-band Spectrum of the Massive Gas Giant Planet beta Pictoris b with the Gemini Planet Imager
Jeffrey Chilcote, Travis Barman, Michael P. Fitzgerald +43
Using the recently installed Gemini Planet Imager (GPI), we have taken the first H-band spectrum of the planetary companion to the nearby young star beta Pictoris. GPI is designed…
Growth of Jupiter: Enhancement of Core Accretion by a Voluminous Low-Mass Envelope
Gennaro D'Angelo, Stuart J. Weidenschilling, Jack J. Lissauer +1
We present calculations of the early stages of the formation of Jupiter via core nucleated accretion and gas capture. The core begins as a seed body of about 350 kilometers in radi…
Deuterium Burning in Massive Giant Planets and Low-Mass Brown Dwarfs formed by Core-Nucleated Accretion
Peter Bodenheimer, Gennaro D'Angelo, Jack J. Lissauer +2
Formation of bodies near the deuterium-burning limit is considered by detailed numerical simulations according to the core-nucleated giant planet accretion scenario. The objects, w…
Signals embedded in the radial velocity noise. Periodic variations in the tau Ceti velocities
Mikko Tuomi, Hugh R. A. Jones, James S. Jenkins +12
The abilities of radial velocity exoplanet surveys to detect the lowest-mass extra-solar planets are currently limited by a combination of instrument precision, lack of data, and "…
On The Relative Sizes of Planets Within Kepler Multiple Candidate Systems
David R. Ciardi, Daniel C. Fabrycky, Eric B. Ford +5
We present a study of the relative sizes of planets within the multiple candidate systems discovered with the mission. We have compared the size of each planet to the size…
Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307
Mikko Tuomi, Guillem Anglada-Escude, Enrico Gerlach +5
The K2.5 dwarf HD 40307 has been reported to host three super-Earths. The system lacks massive planets and is therefore a potential candidate for having additional low-mass planeta…
GJ 581 update: Additional Evidence for a Super-Earth in the Habitable Zone
Steven S. Vogt, R. Paul Butler, Nader Haghighipour
We present an analysis of the significantly expanded HARPS 2011 radial velocity data set for GJ 581 that was presented by Forveille et al. (2011). Our analysis reaches substantiall…
The Lick-Carnegie Survey: A New Two-Planet System Around the Star HD 207832
Nader Haghighipour, R. Paul Butler, Eugenio J. Rivera +2
Keck/HIRES precision radial velocities of HD 207832 indicate the presence of two Jovian-type planetary companions in Keplerian orbits around this G star. The planets have minimum m…
The EVIL-MC Model for Ellipsoidal Variations of Planet-Hosting Stars and Applications to the HAT-P-7 System
Brian K. Jackson, Nikole K. Lewis, Jason W. Barnes +3
We present a new model for Ellipsoidal Variations Induced by a Low-Mass Companion, the EVIL-MC model. We employ several approximations appropriate for planetary systems to substant…
Circumbinary Planet Formation in the Kepler-16 system. I. N-body Simulations
Stefano Meschiari
The recently discovered circumbinary planets (Kepler-16 b, Kepler-34 b, Kepler-35 b) represent the first direct evidence of the viability of planet formation in circumbinary orbits…
Formation and Structure of Low Density Exo-Neptunes
Leslie A. Rogers, Peter Bodenheimer, Jack J. Lissauer +1
Kepler has found hundreds of Neptune-size (2-6 R_Earth) planet candidates within 0.5 AU of their stars. The nature of the vast majority of these planets is not known because their…