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
28 papers · 2 filters
A new model for mixing by double-diffusive convection (semi-convection): I. The conditions for layer formation
Giovanni M. Mirouh, Pascale Garaud, Stephan Stellmach +2
The process referred to as "semi-convection" in astrophysics and "double-diffusive convection in the diffusive regime" in Earth and planetary sciences, occurs in stellar and planet…
The Metallicity Distribution Functions of SEGUE G and K dwarfs: Constraints for Disk Chemical Evolution and Formation
Katharine J. Schlesinger, Jennifer A. Johnson, Constance M. Rockosi +14
We present the metallicity distribution function (MDF) for 24,270 G and 16,847 K dwarfs at distances from 0.2 to 2.3 kpc from the Galactic plane, based on spectroscopy from the Slo…
An Unexpected Discovery in the Rich Open Cluster NGC 6819 Using XMM-Newton
Natalie M. Gosnell, David Pooley, Aaron M. Geller +4
We present the first study of the X-ray population of the intermediate-age rich open cluster NGC 6819 using the XMM-Newton Observatory. In the past decade, Chandra X-ray observatio…
Was The Sun Born In A Massive Cluster?
Donald Dukes, Mark R. Krumholz
A number of authors have argued that the Sun must have been born in a cluster of no more than about 1000 stars, on the basis that, in a larger cluster, close encounters between the…
Very Early Ultraviolet and Optical Observations of the Type Ia Supernova 2009ig
Ryan J. Foley, P. J. Challis, A. V. Filippenko +18
Supernova (SN) 2009ig was discovered 17 hours after explosion by the Lick Observatory Supernova Search, promptly classified as a normal Type Ia SN (SN Ia), peaked at V = 13.5 mag,…
The Supernova Triggered Formation and Enrichment of Our Solar System
M. Gritschneder, D. N. C. Lin, S. D. Murray +2
We investigate the enrichment of the pre-solar cloud core with short lived radionuclides (SLRs), especially 26Al. The homogeneity and the surprisingly small spread in the ratio 26A…
LSPM J1112+7626: detection of a 41-day M-dwarf eclipsing binary from the MEarth transit survey
Jonathan M. Irwin, Samuel N. Quinn, Zachory K. Berta +13
We report the detection of eclipses in LSPM J1112+7626, which we find to be a moderately bright (I_C = 12.14 +/- 0.05) very low-mass binary system with an orbital period of 41.0323…
Multiwavelength Observations of A0620-00 in Quiescence
C. S. Froning, A. G. Cantrell, T. J. Maccarone +17
[Abridged.] We present multiwavelength observations of the black hole binary system, A0620-00. Using the Cosmic Origins Spectrograph on the Hubble Space Telescope, we have obtained…
On the Origin of Stellar Masses
Mark R. Krumholz
It has been a longstanding problem to determine, as far as possible, the characteristic masses of stars in terms of fundamental constants; the almost complete invariance of this ma…
Characterizing the Cool Kepler Objects of Interest. New Effective Temperatures, Metallicities, Masses and Radii of Low-Mass Kepler Planet-Candidate Host Stars
Philip S. Muirhead, Katherine Hamren, Everett Schlawin +3
We report stellar parameters for late-K and M-type planet-candidate host stars announced by the Kepler Mission. We obtained medium-resolution, K-band spectra of 84 cool (Teff < 440…
The Evolution of a Double Diffusive Magnetic Buoyancy Instability
Lara J. Silvers, Geoffrey M. Vasil, Nicholas H. Brummell +1
Recently, Silvers, Vasil, Brummell, & Proctor (2009), using numerical simulations, confirmed the existence of a double diffusive magnetic buoyancy instability of a layer of horizon…
The Sun's meridional circulation and interior magnetic field
Toby S. Wood, Jeremy O. McCaslin, Pascale Garaud
To date, no self-consistent numerical simulation of the solar interior has succeeded in reproducing the observed thinness of the solar tachocline, and the persistence of uniform ro…
The architecture of the hierarchical triple star KOI 928 from eclipse timing variations seen in Kepler photometry
J. H. Steffen, S. N. Quinn, W. J. Borucki +25
We present a hierarchical triple star system (KIC 9140402) where a low mass eclipsing binary orbits a more massive third star. The orbital period of the binary (4.98829 Days) is de…
The Yellow Supergiant Progenitor of the Type II Supernova 2011dh in M51
J. R. Maund, M. Fraser, M. Ergon +11
We present the detection of the progenitor of the Type II SN 2011dh in archival pre-explosion Hubble Space Telescope images. Using post-explosion Adaptive Optics imaging with Gemin…
Spin down of protostars through gravitational torques
Min-Kai Lin, Mark R. Krumholz, Kaitlin M. Kratter
Young protostars embedded in circumstellar discs accrete from an angular momentum-rich mass reservoir. Without some braking mechanism, all stars should be spinning at or near break…
The two metallicity groups of the globular cluster M22: a chemical perspective
A. F. Marino, C. Sneden, R. P. Kraft +11
We present a detailed chemical composition analysis of 35 red giant stars in the globular cluster M22. High resolution spectra for this study were obtained at five observatories, a…
Hubble and Spitzer Space Telescope Observations of the Debris Disk around the Nearby K Dwarf HD 92945
D. A. Golimowski, J. E. Krist, K. R. Stapelfeldt +9
[ABRIDGED] We present the first resolved images of the debris disk around the nearby K dwarf HD 92945. Our F606W (V) and F814W (I) HST/ACS coronagraphic images reveal an inclined,…
XRF 100316D / SN 2010bh and the Nature of Gamma Ray Burst Supernovae
Z. Cano, D. Bersier, C. Guidorzi +21
We present ground-based and HST optical and infrared observations of XRF 100316D / SN 2010bh. It is seen that the optical light curves of SN 2010bh evolve at a faster rate than the…
No Confirmed New Isolated Neutron Stars In The SDSS Data Release 4
Marcel Agüeros, Bettina Posselt, Scott Anderson +6
We report on follow-up observations of candidate X-ray bright, radio-quiet isolated neutron stars (INSs) identified from correlations of the ROSAT All-Sky Survey (RASS) and the Slo…
Kepler Eclipsing Binary Stars. II. 2165 Eclipsing Binaries in the Second Data Release
Robert W. Slawson, Andrej Prsa, William F. Welsh +21
The Kepler Mission provides nearly continuous monitoring of ~156 000 objects with unprecedented photometric precision. Coincident with the first data release, we presented a catalo…
HST/ACS Observations of RR Lyrae Stars in Six Ultra-deep Fields of M31
Elizabeth J. Jeffery, Ed Smith, Thomas M. Brown +6
We present HST/ACS observations of RR Lyrae variable stars in six ultra deep fields of the Andromeda galaxy (M31), including parts of the halo, disk, and giant stellar stream. Past…
The Abundances of Neutron Capture Species in the Very Metal-Poor Globular Cluster M15: An Uniform Analysis of RGB and RHB Stars
J. S. Sobeck, R. P. Kraft, C. Sneden +6
The globular cluster M15 is unique in its display of star-to-star variations in the neutron-capture elements. Comprehensive abundance surveys have been previously conducted for han…
Core-collapse explosions of Wolf-Rayet stars and the connection to type IIb/Ib/Ic supernovae
Luc Dessart, D. John Hillier, Eli Livne +4
We present non-LTE time-dependent radiative-transfer simulations of supernova (SN) IIb/Ib/Ic spectra and light curves, based on ~1B-energy piston-driven ejecta, with and without 56…
KOI-126: A Triply-Eclipsing Hierarchical Triple with Two Low-Mass Stars
Joshua A. Carter, Daniel C. Fabrycky, Darin Ragozzine +20
The Kepler spacecraft has been monitoring the light from 150,000 stars in its primary quest to detect transiting exoplanets. Here we report on the detection of an eclipsing stellar…