18.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, BerkeleyUS1.3k papers
- Goddard Space Flight CenterUS457 papers
- California Institute of TechnologyUS379 papers
- Centre National de la Recherche ScientifiqueFR367 papers
- Lawrence Berkeley National LaboratoryUS262 papers
- Jet Propulsion LaboratoryUS260 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR240 papers
- National Institute for AstrophysicsIT239 papers
- University of CambridgeGB208 papers
- Imperial College LondonGB203 papers
- Institut de Recherche en Astrophysique et PlanétologieFR195 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR181 papers
9 papers · 2 filters
System Geometries and Transit / Eclipse Probabilities
Kaspar von Braun, Stephen R. Kane, Suvrath Mahadevan +3
Transiting exoplanets provide access to data to study the mass-radius relation and internal structure of extrasolar planets. Long-period transiting planets allow insight into plane…
The NASA-UC Eta-Earth Program: III. A Super-Earth orbiting HD 97658 and a Neptune-mass planet orbiting Gl 785
Andrew W. Howard, John Asher Johnson, Geoffrey W. Marcy +7
We report the discovery of planets orbiting two bright, nearby early K dwarf stars, HD 97658 and Gl 785. These planets were detected by Keplerian modelling of radial velocities mea…
The Oblique Orbit of the Super-Neptune HAT-P-11b
Joshua N. Winn, John Asher Johnson, Andrew W. Howard +6
We find the orbit of the Neptune-sized exoplanet HAT-P-11b to be highly inclined relative to the equatorial plane of its host star. This conclusion is based on spectroscopic observ…
Giant Planet Occurrence in the Stellar Mass-Metallicity Plane
John Asher Johnson, Kimberly M. Aller, Andrew W. Howard +1
Correlations between stellar properties and the occurrence rate of exoplanets can be used to inform the target selection of future planet search efforts and provide valuable clues…
Comparison of the Oxidation State of Fe in Comet 81P/Wild 2 and Chondritic-Porous Interplanetary Dust Particles
R. C. Ogliore, A. L. Butterworth, S. C. Fakra +3
The fragile structure of chondritic-porous interplanetary dust particles (CP- IDPs) and their minimal parent-body alteration have led researchers to believe these particles origina…
A Correlation Between Stellar Activity and Hot Jupiter Emission Spectra
Heather A. Knutson, Andrew W. Howard, Howard Isaacson
We present evidence for a correlation between the observed properties of hot Jupiter emission spectra and the activity levels of the host stars measured using Ca II H & K emission…
The California Planet Survey I. Four New Giant Exoplanets
Andrew W. Howard, John Asher Johnson, Geoffrey W. Marcy +12
We present precise Doppler measurements of four stars obtained during the past decade at Keck Observatory by the California Planet Survey (CPS). These stars, namely, HD 34445, HD 1…
The NASA-UC Eta-Earth Program: II. A Planet Orbiting HD 156668 with a Minimum Mass of Four Earth Masses
Andrew W. Howard, John Asher Johnson, Geoffrey W. Marcy +7
We report the discovery of HD 156668b, an extrasolar planet with a minimum mass of M_P sin i = 4.15 M_Earth. This planet was discovered through Keplerian modeling of precise radial…
The HAT-P-13 Exoplanetary System: Evidence for Spin-Orbit Alignment and a Third Companion
Joshua N. Winn, John Asher Johnson, Andrew W. Howard +6
We present new radial-velocity measurements of HAT-P-13, a star with two previously known companions: a transiting giant planet "b" with an orbital period of 3 days, and a more mas…