Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Carnegie ObservatoriesUS2.7k papers
- California Institute of TechnologyUS914 papers
- Space Telescope Science InstituteUS659 papers
- Center for Astrophysics Harvard & SmithsonianUS619 papers
- University of ArizonaUS595 papers
- University of California, BerkeleyUS532 papers
- University of California, Santa CruzUS523 papers
- Princeton UniversityUS503 papers
- Department of Terrestrial MagnetismUS499 papers
- Centre National de la Recherche ScientifiqueFR493 papers
- Max Planck Institute for AstronomyDE429 papers
- Johns Hopkins UniversityUS415 papers
29 papers · 2 filters
The Pan-Pacific Planet Search. IV. Two super-Jupiters in a 3:5 resonance orbiting the giant star HD33844
Robert A. Wittenmyer, John Asher Johnson, R. P. Butler +9
We report the discovery of two giant planets orbiting the K giant HD 33844 based on radial velocity data from three independent campaigns. The planets move on nearly circular orbit…
MagAO Imaging of Long-period Objects (MILO). I. A Benchmark M Dwarf Companion Exciting a Massive Planet around the Sun-like Star HD 7449
Timothy J. Rodigas, Pamela Arriagada, Jackie Faherty +17
We present high-contrast Magellan adaptive optics (MagAO) images of HD 7449, a Sun-like star with one planet and a long-term radial velocity (RV) trend. We unambiguously detect the…
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…
Accreting Protoplanets in the LkCa 15 Transition Disk
S. Sallum, K. B. Follette, J. A. Eisner +14
Exoplanet detections have revolutionized astronomy, offering new insights into solar system architecture and planet demographics. While nearly 1900 exoplanets have now been discove…
HATS-15 b and HATS-16 b: Two massive planets transiting old G dwarf stars
S. Ciceri, L. Mancini, T. Henning +28
We report the discovery of HATS-15 b and HATS-16 b, two massive transiting extrasolar planets orbiting evolved ( Gyr) main-sequence stars. The planet HATS-15 b, which is h…
OSSOS II: A Sharp Transition in the Absolute Magnitude Distribution of the Kuiper Belt's Scattering Population
C. Shankman, J. J. Kavelaars, B. J. Gladman +8
We measure the absolute magnitude, , distribution, of the scattering Trans-Neptunian Objects (TNOs) as a proxy for their size-frequency distribution. We…
Magellan Adaptive Optics first-light observations of the exoplanet beta Pic b. II. 3-5 micron direct imaging with MagAO+Clio, and the empirical bolometric luminosity of a self-luminous giant planet
Katie M. Morzinski, Jared R. Males, Andy J. Skemer +14
Young giant exoplanets are a unique laboratory for understanding cool, low-gravity atmospheres. A quintessential example is the massive extrasolar planet Pic b, which is 9 AU f…
Evidence for Reflected Light from the Most Eccentric Exoplanet Known
Stephen R. Kane, Robert A. Wittenmyer, Natalie R. Hinkel +16
Planets in highly eccentric orbits form a class of objects not seen within our Solar System. The most extreme case known amongst these objects is the planet orbiting HD~20782, with…
The Frequency of Giant impacts on Earth-like Worlds
Elisa V. Quintana, Thomas Barclay, William Borucki +2
The late stages of terrestrial planet formation are dominated by giant impacts that collectively influence the growth, composition and habitability of any planets that form. Hither…
The Fragility of the Terrestrial Planets During a Giant Planet Instability
Nathan A. Kaib, John E. Chambers
Many features of the outer solar system are replicated in numerical simulations if the giant planets undergo an orbital instability that ejects one or more ice giants. During this…
Doppler Monitoring of the WASP-47 Multiplanet System
Fei Dai, Joshua N. Winn, Pamela Arriagada +8
We present precise Doppler observations of WASP-47, a transiting planetary system featuring a hot Jupiter with both inner and outer planetary companions. This system has an unusual…
The Pan-Pacific Planet Search III: Five companions orbiting giant stars
R. A. Wittenmyer, R. P. Butler, L. Wang +4
We report a new giant planet orbiting the K giant HD 155233, as well as four stellar-mass companions from the Pan-Pacific Planet Search, a southern hemisphere radial velocity surve…
Detectability of Planetesimal Impacts on Giant Exoplanets
Laura Flagg, Alycia J. Weinberger, Keith Matthews
The detectability of planetesimal impacts on imaged exoplanets can be measured using Jupiter during the 1994 comet Shoemaker-Levy 9 events as a proxy. By integrating the whole plan…
The Role of Plate Tectonic-Climate Coupling and Exposed Land Area in the Development of Habitable Climates on Rocky Planets
Bradford J. Foley
The long-term carbon cycle is vital for maintaining liquid water oceans on rocky planets due to the negative climate feedbacks involved in silicate weathering. Plate tectonics play…
Direct Exoplanet Detection with Binary Differential Imaging
Timothy J. Rodigas, Alycia Weinberger, Eric E. Mamajek +5
Binaries are typically excluded from direct imaging exoplanet surveys. However, the recent findings of Kepler and radial velocity programs show that planets can and do form in bina…
The Reactivation of Main-Belt Comet 324P/La Sagra (P/2010 R2)
Henry H. Hsieh, Scott S. Sheppard
We present observations using the Baade Magellan and Canada-France-Hawaii telescopes showing that main-belt comet 324P/La Sagra, formerly known as P/2010 R2, has become active agai…
Triggering Collapse of the Presolar Dense Cloud Core and Injecting Short-Lived Radioisotopes with a Shock Wave. IV. Effects of Rotational Axis Orientation
Alan P. Boss, Sandra A. Keiser
Both astronomical observations of the interaction of Type II supernova remnants (SNR) with dense interstellar clouds as well as cosmochemical studies of the abundances of daughter…
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…
Brief Follow-up on Recent Studies of Theia's Accretion
Nathan A. Kaib, Nicolas B. Cowan
Kaib & Cowan (2015) recently used terrestrial planet formation simulations to conclude that the moon-forming impactor (Theia) had only a ~5% or less chance of having the same oxyge…
New Extinction and Mass Estimates of the Low-mass Companion 1RXS 1609 B with the Magellan AO System: Evidence of an Inclined Dust Disk
Ya-Lin Wu, Laird M. Close, Jared R. Males +9
We used the Magellan adaptive optics system to image the 11 Myr substellar companion 1RXS 1609 B at the bluest wavelengths to date (z' and Ys). Comparison with synthetic spectra yi…
A SMACK Model of Colliding Planetesimals in the Pictoris Debris Disk
Erika R. Nesvold, Marc J. Kuchner
We present a new model of the Pictoris disk-and-planet system that simulates both the planetesimal collisions and the dynamics of the resulting dust grains, allowing us to mode…
Planets Around Low-Mass Stars (PALMS). V. Age-Dating Low-Mass Companions to Members and Interlopers of Young Moving Groups
Brendan P. Bowler, Evgenya L. Shkolnik, Michael C. Liu +22
We present optical and near-infrared adaptive optics (AO) imaging and spectroscopy of 13 ultracool (>M6) companions to late-type stars (K7-M4.5), most of which have recently been i…
Fast Rotation and Trailing Fragments of the Active Asteroid P/2012 F5 (Gibbs)
Michal Drahus, Waclaw Waniak, Shriharsh Tendulkar +3
While having a comet-like appearance, P/2012 F5 (Gibbs) has an orbit native to the Main Asteroid Belt, and physically is a km-sized asteroid which recently (mid 2011) experienced a…
The pH of Enceladus' ocean
Christopher Glein, John Baross, Hunter Waite
Observational data from the Cassini spacecraft are used to obtain a chemical model of ocean water on Enceladus. The model indicates that Enceladus' ocean is a Na-Cl-CO3 solution wi…