Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.6k papers
- University of California, BerkeleyUS2.5k papers
- The Ohio State UniversityUS2.3k papers
- University of ArizonaUS2.1k papers
- Lawrence Berkeley National LaboratoryUS2.1k papers
- SLAC National Accelerator LaboratoryUS2k papers
- University of California, IrvineUS2k papers
- Yale UniversityUS1.9k papers
- University of Wisconsin–MadisonUS1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- McGill UniversityCA1.9k papers
- University of ChicagoUS1.9k papers
26 papers · 2 filters
Low Mach Number Modeling of Convection in Helium Shells on Sub-Chandrasekhar White Dwarfs. I. Methodology
M. Zingale, A. Nonaka, A. S. Almgren +3
We assess the robustness of a low Mach number hydrodynamics algorithm for modeling helium shell convection on the surface of a white dwarf in the context of the sub-Chandrasekhar m…
A Comparison of Near-Infrared Photometry and Spectra for Y Dwarfs with a New Generation of Cool Cloudy Models
S. K. Leggett, Caroline V. Morley, M. S. Marley +3
We present YJHK photometry, or a subset, for the six Y dwarfs discovered in WISE data by Cushing et al.. The data were obtained using NIRI on the Gemini North telescope. We also pr…
Chemical Transport and Spontaneous Layer Formation in Fingering Convection in Astrophysics
Justin M. Brown, Pascale Garaud, Stephan Stellmach
A region of a star that is stable to convection according to the Ledoux criterion may nevertheless undergo additional mixing if the mean molecular weight increases with radius. Thi…
A new model for mixing by double-diffusive convection (semi-convection). II. The transport of heat and composition through layers
Toby S. Wood, Pascale Garaud, Stephan Stellmach
Regions of stellar and planetary interiors that are unstable according to the Schwarzschild criterion, but stable according to the Ledoux criterion, are subject to a form of oscill…
Vertical Atmospheric Structure in a Variable Brown Dwarf: Pressure-dependent Phase Shifts in Simultaneous Hubble Space Telescope-Spitzer Light Curves
Esther Buenzli, Daniel Apai, Caroline V. Morley +6
Heterogeneous clouds or temperature perturbations in rotating brown dwarfs produce variability in the observed flux. We report time-resolved simultaneous observations of the variab…
BANANA IV: Two aligned stellar rotation axes in the young eccentric binary system EP Crucis: primordial orientation and tidal alignment
Simon Albrecht, Johny Setiawan, Guillermo Torres +2
With observations of the EP Cru system, we continue our series of measurements of spin-orbit angles in eclipsing binary star systems, the BANANA project (Binaries Are Not Always Ne…
The Fragmentation of Magnetized, Massive Star-Forming Cores with Radiative Feedback
Andrew T. Myers, Christopher F. McKee, Andrew J. Cunningham +2
We present a set of 3-dimensional, radiation-magnetohydrodynamic calculations of the gravitational collapse of massive (300 Msun), star-forming molecular cloud cores. We show that…
Photometrically derived masses and radii of the planet and star in the TrES-2 system
Thomas Barclay, Daniel Huber, Jason F. Rowe +16
We measure the mass and radius of the star and planet in the TrES-2 system using 2.7 years of observations by the Kepler spacecraft. The light curve shows evidence for ellipsoidal…
Internal Gravity Waves Modulate the Apparent Misalignment of Exoplanets around Hot Stars
T. M. Rogers, D. N. C. Lin, H. H. B. Lau
We propose that the observed misalignment between extra-solar planets and their hot host stars can be explained by angular momentum transport within the host star. Observations hav…
Kepler-47: A Transiting Circumbinary Multi-Planet System
Jerome A. Orosz, William F. Welsh, Joshua A. Carter +36
We report the detection of Kepler-47, a system consisting of two planets orbiting around an eclipsing pair of stars. The inner and outer planets have radii 3.0 and 4.6 times that o…
The Neptune-Sized Circumbinary Planet Kepler-38b
Jerome A. Orosz, William F. Welsh, Joshua A. Carter +28
We discuss the discovery and characterization of the circumbinary planet Kepler-38b. The stellar binary is single-lined, with a period of 18.8 days, and consists of a moderately ev…
Neglected Clouds in T and Y Dwarf Atmospheres
Caroline V. Morley, Jonathan J. Fortney, Mark S. Marley +3
As brown dwarfs cool, a variety of species condense in their atmospheres, forming clouds. Iron and silicate clouds shape the emergent spectra of L dwarfs, but these clouds dissipat…
The role of theta Oph in the formation and evolution of the Pipe Nebula - is star formation ever isolated?
Matthias Gritschneder, Douglas N. C. Lin
We propose that the Pipe Nebula is an HII region shell swept up by the B2 IV beta Cephei star theta Ophiuchi. After reviewing the morphological evidence by recent observations, we…
Ruprecht 147: The oldest nearby open cluster as a new benchmark for stellar astrophysics
Jason L. Curtis, Angie Wolfgang, Jason T. Wright +2
Ruprecht 147 is a hitherto unappreciated open cluster that holds great promise as a standard in fundamental stellar astrophysics. We have conducted a radial velocity survey of astr…
On the nature of supernovae Ib and Ic
Luc Dessart, D. John Hillier, Chengdong Li +1
Using non-LTE time-dependent radiative-transfer calculations, we study the impact of mixing and non-thermal processes associated with radioactive decay on SN IIb/Ib/Ic light curves…
Discovery of Super-Li Rich Red Giants in Dwarf Spheroidal Galaxies
Evan Kirby, Xiaoting Fu, Puragra Guhathakurta +1
Stars destroy lithium (Li) in their normal evolution. The convective envelopes of evolved red giants reach temperatures of millions of K, hot enough for the 7Li(p,alpha)4He reactio…
Radiation-Hydrodynamic Simulations of the Formation of Orion-Like Star Clusters II. The Initial Mass Function from Winds, Turbulence, and Radiation
Mark R. Krumholz, Richard I. Klein, Christopher F. McKee
[abridged] We report a series of simulations of the formation of a star cluster similar to the Orion Nebula Cluster (ONC), including both radiative transfer and protostellar outflo…
Rotational Velocities of Individual Components in Very Low Mass Binaries
Q. M. Konopacky, A. M. Ghez, D. C. Fabrycky +6
We present rotational velocities for individual components of eleven very low mass (VLM) binaries with spectral types between M7 and L7.5. These results are based on observations t…
The Role of Thermohaline Mixing in Intermediate- and Low-Metallicity Globular Clusters
George C. Angelou, Richard J. Stancliffe, Ross P. Church +2
It is now widely accepted that globular cluster red giant branch stars owe their strange abundance patterns to a combination of pollution from progenitor stars and in situ extra mi…
The double sub-giant branch of NGC 6656 (M22): a chemical characterization
A. F. Marino, A. P. Milone, C. Sneden +14
We present an abundance analysis of 101 subgiant branch (SGB) stars in the globular cluster M22. Using low resolution FLAMES/GIRAFFE spectra we have determined abundances of the ne…
Comparison of Convective Overshooting Models and Their Impact on Abundances from Integrated Light Spectroscopy of Young ( 3 Gyr) Star Clusters
J. E. Colucci, R. A. Bernstein
As part of an ongoing program to measure detailed chemical abundances in nearby galaxies, we use a sample of young to intermediate age clusters in the Large Magellanic Cloud with a…
What Sets the Initial Rotation Rates of Massive Stars?
Anna L. Rosen, Mark R. Krumholz, Enrico Ramirez-Ruiz
The physical mechanisms that set the initial rotation rates in massive stars are a crucial unknown in current star formation theory. Observations of young, massive stars provide ev…
The VAST Survey -- II. Orbital motion monitoring of A-type star multiples
Robert J. De Rosa, Jenny Patience, Arthur Vigan +11
As a part of our ongoing Volume-limited A-Star (VAST) adaptive optics survey, we have obtained observations of 26 binary systems with projected separations <100 AU, 13 of which hav…
Characterizing the Cool KOIs III. KOI-961: A Small Star with Large Proper Motion and Three Small Planets
Philip S. Muirhead, John Asher Johnson, Kevin Apps +21
We present the characterization of the star KOI 961, an M dwarf with transit signals indicative of three short-period exoplanets, originally discovered by the Kepler Mission. We pr…