Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR640 papers
- The University of SydneyAU475 papers
- University of BirminghamGB381 papers
- University of CopenhagenDK357 papers
- Instituto de Astrofísica de CanariasES341 papers
- Universidad de La LagunaES308 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR304 papers
- California Institute of TechnologyUS282 papers
- Center for Astrophysics Harvard & SmithsonianUS281 papers
- European Southern ObservatoryCL265 papers
- Astrophysique, Instrumentation et ModélisationFR259 papers
- Osservatorio Astronomico di PadovaIT258 papers
25 papers · 2 filters
Kepler Asteroseismology Program: Introduction and First Results
Ronald L. Gilliland, T. M. Brown, J. Christensen-Dalsgaard +32
Asteroseismology involves probing the interiors of stars and quantifying their global properties, such as radius and age, through observationsof normal modes of oscillation. The te…
Asteroseismic Investigation of Known Planet Hosts in the Kepler Field
J. Christensen-Dalsgaard, H. Kjeldsen, T. M. Brown +7
In addition to its great potential for characterizing extra-solar planetary systems the Kepler mission is providing unique data on stellar oscillations. A key aspect of Kepler aste…
Detection of solar-like oscillations from Kepler photometry of the open cluster NGC 6819
Dennis Stello, Sarbani Basu, Hans Bruntt +49
Asteroseismology of stars in clusters has been a long-sought goal because the assumption of a common age, distance and initial chemical composition allows strong tests of the theor…
Asteroseismic modelling of the solar-like star Hydri
G. Doğan, I. M. Brandão, T. R. Bedding +3
We present the results of modelling the subgiant star Hydri using the seismic observational constraints. We have computed several grids of stellar evolutionary tracks using Aar…
Prospects for asteroseismology
J. Christensen-Dalsgaard, G. Houdek
The observational basis for asteroseismology is being dramatically strengthened, through more than two years of data from the CoRoT satellite, the flood of data coming from the Kep…
Determining global parameters of the oscillations of solar-like stars
S. Mathur, R. A. Garcia, C. Regulo +7
Helioseismology has enabled us to better understand the solar interior, while also allowing us to better constrain solar models. But now is a tremendous epoch for asteroseismology…
The Octave (Birmingham - Sheffield Hallam) automated pipeline for extracting oscillation parameters of solar-like main-sequence stars
S. Hekker, A. -M Broomhall, W. J. Chaplin +6
The number of main-sequence stars for which we can observe solar-like oscillations is expected to increase considerably with the short-cadence high-precision photometric observatio…
A fresh look at the seismic spectrum of HD49933: analysis of 180 days of CoRoT photometry
O. Benomar, F. Baudin, T. L. Campante +18
Solar-like oscillations have now been observed in several stars, thanks to ground-based spectroscopic observations and space-borne photometry. CoRoT, which has been in orbit since…
Sounding stellar cycles with Kepler - preliminary results from ground-based chromospheric activity measurements
C. Karoff, T. S. Metcalfe, W. J. Chaplin +6
Due to its unique long-term coverage and high photometric precision, observations from the Kepler asteroseismic investigation will provide us with the possibility to sound stellar…
Characterization of CoRoT Target Fields with the Berlin Exoplanet Search Telescope: Identification of Periodic Variable Stars in the LRa1 Field
P. Kabath, P. Eigmueller, A. Erikson +6
In this paper, we report on observations of the CoRoT LRa1 field with the Berlin Exoplanet Search Telescope (BEST). The current paper is part of a series of papers describing the r…
Identification of Variable Stars in COROT's First Main Observing Field (LRc1)
C. Karoff, H. Rauer, A. Erikson +7
The COROT space mission will monitor several target fields for up to 150 days to perform asteroseismology and to search for extrasolar planets by photometric transits. Variable sta…
Stromgren photometry of Galactic Globular Clusters. II Metallicity distribution of red giants in Omega Centauri
A. Calamida, G. Bono, P. B. Stetson +23
We present new intermediate-band Stroemgren photometry based on more than 300 u,v,b,y images of the Galactic globular cluster Omega Cen. Optical data were supplemented with new mul…
Extensive optical and near-infrared observations of the nearby, narrow-lined type Ic SN 2007gr: days 5 to 415
Deborah J. Hunter, Stefano Valenti, Rubina Kotak +26
We present photometric and spectroscopic observations at optical and near-infrared wavelengths of the nearby type Ic SN 2007gr. These represent the most extensive data-set to date…
Long-term photometry and periods for 261 nearby pulsating M giants
V. Tabur, T. R. Bedding, L. L. Kiss +3
We present the results of a 5.5-year CCD photometric campaign that monitored 261 bright, southern, semi-regular variables with relatively precise Hipparcos parallaxes. The data are…
Characterization of CoRoT target fields with BEST: Identification of periodic variable stars in the IR01 field
P. Kabath, P. Eigmüller, A. Erikson +4
We report on observations of the CoRoT IR01 field with the Berlin Exoplanet Search Telescope (BEST). BEST is a small aperture telescope with a wide field of view (FOV). It is dedic…
A kinetic Monte Carlo study of desorption of H2 from graphite (0001)
E. Gavardi, H. M. Cuppen, L. Hornekaer
The formation of H2 in the interstellar medium proceeds on the surfaces of silicate or carbonaceous particles. To get a deeper insight of its formation on the latter substrate, thi…
A note on the torsional oscillation at solar minimum
R. Howe, J. Christensen-Dalsgaard, F. Hill +3
We examine the evolution of the zonal flow pattern in the upper solar convection zone during the current extended solar minimum, and compare it with that during the previous minimu…
Sounding stellar cycles with Kepler - I. Strategy for selecting targets
C. Karoff, T. S. Metcalfe, W. J. Chaplin +4
The long-term monitoring and high photometric precision of the Kepler satellite will provide a unique opportunity to sound the stellar cycles of many solar-type stars using asteros…
Signatures of intrinsic Li depletion and Li-Na anti-correlation in the metal-poor globular cluster NGC6397
K. Lind, F. Primas, C. Charbonnel +2
To alleviate the discrepancy between the prediction of the primordial lithium abundance in the universe and the abundances observed in Pop II dwarfs and subgiant stars, it has been…
Radius determination of solar-type stars using asteroseismology: What to expect from the Kepler mission
D. Stello, W. J. Chaplin, H. Bruntt +22
For distant stars, as observed by the NASA Kepler satellite, parallax information is currently of fairly low quality and is not complete. This limits the precision with which the a…
A Stellar Model-fitting Pipeline for Asteroseismic Data from the Kepler Mission
T. S. Metcalfe, O. L. Creevey, J. Christensen-Dalsgaard
Over the past two decades, helioseismology has revolutionized our understanding of the interior structure and dynamics of the Sun. Asteroseismology will soon place this knowledge i…
The Sun as a fundamental calibrator of stellar evolution
J. Christensen-Dalsgaard
The Sun is unique amongst stars in having a precisely determined age which does not depend on the modelling of stellar evolution. Furthermore, other global properties of the Sun ar…
Age and distance for the old open cluster NGC188 from the eclipsing binary member V12
S. Meibom, F. Grundahl, J. V. Clausen +6
We present time-series radial-velocity and photometric observations of a solar-type double-lined eclipsing binary star (V12) near the turnoff in the old open cluster NGC188. We use…
Constraints on Helium Enhancement in the Globular Cluster M3 (NGC 5272): The Horizontal Branch Test
M. Catelan, F. Grundahl, A. V. Sweigart +2
It has recently been suggested that the presence of multiple populations showing various amounts of helium enhancement is the rule, rather than the exception, among globular star c…