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
22 papers · 2 filters
Turbulent transport in a strongly stratified forced shear layer with thermal diffusion
Pascale Garaud, Logithan Kulenthirarajah
This work presents numerical results on the transport of heat and chemical species by shear-induced turbulence in strongly stratified but thermally diffusive environments. The shea…
The Bright Symbiotic Mira EF Aquilae
Bruce Margon, J. Xavier Prochaska, Nicolas Tejos +1
An incidental spectrum of the poorly studied long period variable EF Aquilae shows [O III] emission indicative of a symbiotic star. Strong GALEX detections in the UV reinforce this…
The Necessity of Feedback Physics in Setting the Peak of the Initial Mass Function
David Guszejnov, Mark R. Krumholz, Philip F. Hopkins
A popular theory of star formation is gravito-turbulent fragmentation, in which self-gravitating structures are created by turbulence-driven density fluctuations. Simple theories o…
2D or not 2D: the effect of dimensionality on the dynamics of fingering convection at low Prandtl number
Pascale Garaud, Nicholas Brummell
Fingering convection (otherwise known as thermohaline convection) is an instability that occurs in stellar radiative interiors in the presence of unstable compositional gradients.…
Hubble Space Telescope Near-Ultraviolet Spectroscopy of Bright CEMP-s Stars
Vinicius M. Placco, Timothy C. Beers, Inese I. Ivans +14
We present an elemental-abundance analysis, in the near-ultraviolet (NUV) spectral range, for the bright carbon-enhanced metal-poor (CEMP) stars HD196944 (V = 8.40, [Fe/H] = -2.41)…
Radiative-transfer models for supernovae IIb/Ib/Ic from binary-star progenitors
Luc Dessart, D. John Hillier, Stan Woosley +4
We present 1-D non-Local-Thermodynamic-Equilibrium time-dependent radiative-transfer simulations for supernovae (SNe) of type IIb, Ib, and Ic that result from the terminal explosio…
A New Model for Mixing By Double-Diffusive Convection (Semi-Convection). III. Thermal and Compositional Transport Through Non-Layered ODDC
Ryan Moll, Pascale Garaud, Stephan Stellmach
Oscillatory double-diffusive convection (ODDC) (also known as semi- convection) refers to a type of double diffusive instability that occurs in regions of planetary and stellar int…
Systematic NLTE study of the -2.6 < [Fe/H] < 0.2 F and G dwarfs in the solar neighbourhood. I. Stellar atmosphere parameters
T. Sitnova, G. Zhao, L. Mashonkina +9
We present atmospheric parameters for 51 nearby FG dwarfs uniformly distributed over the -2.60 < [Fe/H] < +0.20 metallicity range that is suitable for the Galactic chemical evoluti…
Main Sequence Evolution with Layered Semiconvection
Kevin Moore, Pascale Garaud
Semiconvection - mixing that occurs in regions that are stable when considering compositional gradients, but unstable when ignoring them - is shown to have the greatest potential i…
Simulated Photoevaporative Mass Loss from Hot Jupiters in 3D
Anjali Tripathi, Kaitlin M. Kratter, Ruth A. Murray-Clay +1
Ionizing stellar photons heat the upper regions of planetary atmospheres, driving atmospheric mass loss. Gas escaping from several hot, hydrogen-rich planets has been detected usin…
Star formation efficiencies of molecular clouds in a galactic center environment
Erik Bertram, Simon C. O. Glover, Paul C. Clark +1
We use the Arepo moving mesh code to simulate the evolution of molecular clouds exposed to a harsh environment similar to that found in the galactic center (GC), in an effort to un…
Excitation of gravity waves by fingering convection, and the formation of compositional staircases in stellar interiors
P. Garaud, M. Medrano, J. Brown +2
Fingering convection (or thermohaline convection) is a weak yet important kind of mixing that occurs in stably-stratified stellar radiation zones in the presence of an inverse mean…
Uniform Atmospheric Retrieval Analysis of Ultracool Dwarfs I: Characterizing Benchmarks, Gl570D and HD3651B
Michael R. Line, Johanna Teske, Ben Burningham +2
Interpreting the spectra of brown dwarfs is key to determining the fundamental physical and chemical processes occurring in their atmospheres. Powerful Bayesian atmospheric retriev…
Initial-Final Mass Relation for 3 to 4 M Progenitors of White Dwarfs from the Single Cluster NGC 2099
Jeffrey D. Cummings, Jason S. Kalirai, P. -E. Tremblay +1
We have expanded the sample of observed white dwarfs in the rich open cluster NGC 2099 (M37) with the Keck Low-Resolution Imaging Spectrometer. Of 20 white dwarf candidates, the sp…
The Remarkable Deaths of 9 - 11 Solar Mass Stars
S. E. Woosley, Alexander Heger
The post-helium burning evolution of stars from 7 to 11 solar masses is complicated by the lingering effects of degeneracy and off-center ignition. Here stars in this mass range ar…
An equatorial ultra iron-poor star identified in BOSS
C. Allende Prieto, E. Fernandez-Alvar, D. S. Aguado +6
We report the discovery of SDSS J131326.89-001941.4, an ultra iron-poor red giant star ([Fe/H] ~ -4.3) with a very high carbon abundance ([C/Fe]~ +2.5). This object is the fifth st…
THOR - The HI, OH, Recombination Line Survey of the Milky Way - The pilot study: HI observations of the giant molecular cloud W43
S. Bihr, H. Beuther, J. Ott +30
To study the atomic, molecular and ionized emission of Giant Molecular Clouds (GMCs), we have initiated a Large Program with the VLA: 'THOR - The HI, OH, Recombination Line survey…
Structure analysis of simulated molecular clouds with the Delta-variance
Erik Bertram, Ralf S. Klessen, Simon C. O. Glover
We employ the Delta-variance analysis and study the turbulent gas dynamics of simulated molecular clouds (MCs). Our models account for a simplified treatment of time-dependent chem…
Photometric Variability in the CSTAR Field: Results From the 2008 Data Set
Songhu Wang, Hui Zhang, Xu Zhou +26
The Chinese Small Telescope ARray (CSTAR) is the first telescope facility built at Dome A, Antarctica. During the 2008 observing season, the installation provided long-baseline and…
A two-parameter criterion for classifying the explodability of massive stars by the neutrino-driven mechanism
T. Ertl, H. -Th. Janka, S. E. Woosley +2
Thus far, judging the fate of a massive star (either a neutron star (NS) or a black hole) solely by its structure prior to core collapse has been ambiguous. Our work and previous a…
The Brown-dwarf Atmosphere Monitoring (BAM) Project II: Multi-epoch monitoring of extremely cool brown dwarfs
A. Rajan, J. Patience, P. A. Wilson +6
With the discovery of Y dwarfs by the WISE mission, the population of field brown dwarfs now extends to objects with temperatures comparable to those of Solar System planets. To in…
Transport by meridional circulations in solar-type stars
Toby S. Wood, Nicholas H. Brummell
Transport by meridional flows has significant consequences for stellar evolution, but is difficult to capture in global-scale numerical simulations because of the wide range of tim…