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
64 papers · 2 filters
Polarimetry of the superluminous supernova LSQ14mo: no evidence for significant deviations from spherical symmetry
Giorgos Leloudas, Ferdinando Patat, Justyn R. Maund +10
We present the first polarimetric observations of a Type I superluminous supernova (SLSN). LSQ14mo was observed with VLT/FORS2 at five different epochs in the V band, with the obse…
Towards 21st Century Stellar Models: Star Clusters, Supercomputing, and Asteroseismology
S. W. Campbell, T. N. Constantino, V. D'Orazi +8
Stellar models provide a vital basis for many aspects of astronomy and astrophysics. Recent advances in observational astronomy -- through asteroseismology, precision photometry, h…
Asteroseismic age determination for dwarfs and giants
V. Silva Aguirre, A. M. Serenelli
Asteroseismology can make a substantial contribution to our understanding of the formation history and evolution of our Galaxy by providing precisely determined stellar properties…
New systemic radial velocities of suspected RR Lyrae binary stars
Elisabeth Guggenberger, Thomas G. Barnes, Katrien Kolenberg
Among the tens of thousands of known RR Lyrae stars there are only a handful that show indications of possible binarity. The question why this is the case is still unsolved, and ha…
Spitzer Microlensing Program as a Probe for Globular Cluster Planets. Analysis of OGLE-2015-BLG-0448
Radosław Poleski, Wei Zhu, Grant W. Christie +83
The microlensing event OGLE-2015-BLG-0448 was observed by Spitzer and lay within the tidal radius of the globular cluster NGC 6558. The event had moderate magnification and was int…
The K2 Ecliptic Plane Input Catalog (EPIC) and Stellar Classifications of 138,600 Targets in Campaigns 1-8
Daniel Huber, Stephen T. Bryson, Michael R. Haas +6
The K2 Mission uses the Kepler spacecraft to obtain high-precision photometry over ~80 day campaigns in the ecliptic plane. The Ecliptic Plane Input Catalog (EPIC) provides coordin…
UBVRIz Light Curves of 51 Type II Supernovae
Lluís Galbany, Mario Hamuy, Mark M. Phillips +34
We present a compilation of UBV RIz light curves of 51 type II supernovae discovered during the course of four different surveys during 1986 to 2003: the Cerro Tololo Supernova Sur…
Red giant masses and ages derived from carbon and nitrogen abundances
Marie Martig, Morgan Fouesneau, Hans-Walter Rix +7
We show that the masses of red giant stars can be well predicted from their photospheric carbon and nitrogen abundances, in conjunction with their spectroscopic stellar labels log…
The role of binaries in the enrichment of the early Galactic halo. II. Carbon-Enhanced Metal-Poor Stars - CEMP-no stars
T. T. Hansen, J. Andersen, B. Nordström +4
The detailed composition of most metal-poor halo stars has been found to be very uniform. However, a fraction of 20-70% (increasing with decreasing metallicity) exhibit dramatic en…
Abundances of carbon-enhanced metal-poor stars as constraints on their formation
C. J. Hansen, B. Nordstroem, T. T. Hansen +6
An increasing fraction of carbon-enhanced metal-poor (CEMP) stars is found as their iron abundance, [Fe/H], decreases below [Fe/H] = -2.0. The CEMP-s stars have the highest absolut…
Internal rotation of the red-giant star KIC 4448777 by means of asteroseismic inversion
M . P. Di Mauro, R. Ventura, D. Cardini +13
In this paper we study the dynamics of the stellar interior of the early red-giant star KIC 4448777 by asteroseismic inversion of 14 splittings of the dipole mixed modes obtained f…
Non-LTE analysis of copper abundances for the two distinct halo populations in the solar neighborhood
H. L. Yan, J. R. Shi, P. E. Nissen +1
Two distinct halo populations were found in the solar neighborhood by a series of works. They can be clearly separated by [alpha\Fe] and several other elemental abundance ratios in…
Oscillation frequencies for 35 \Kepler solar-type planet-hosting stars using Bayesian techniques and machine learning
G. R. Davies, V. Silva Aguirre, T. R. Bedding +16
\Kepler has revolutionised our understanding of both exoplanets and their host stars. Asteroseismology is a valuable tool in the characterisation of stars and \Kepler is an excelle…
On the LSP3 estimates of surface gravity for LAMOST-Kepler stars with asteroseismic measurements
Juan-Juan Ren, Xiao-Wei Liu, Mao-Sheng Xiang +13
Asteroseismology allows for deriving precise values of surface gravity of stars. The accurate asteroseismic determinations now available for large number of stars in the Kepler fie…
EPIC 201585823, a rare triple-mode RR Lyrae star discovered in K2 mission data
Donald W. Kurtz, Dominic M. Bowman, Simon J. Ebo +3
We have discovered a new, rare triple-mode RR Lyr star, EPIC 201585823, in the Kepler K2 mission Campaign 1 data. This star pulsates primarily in the fundamental and first-overtone…
Asteroseismology Can Reveal Strong Internal Magnetic Fields in Red Giant Stars
Jim Fuller, Matteo Cantiello, Dennis Stello +2
Internal stellar magnetic fields are inaccessible to direct observations and little is known about their amplitude, geometry and evolution. We demonstrate that strong magnetic fiel…
HE 0017+0055 : A probable pulsating CEMP-rs star and long-period binary
A. Jorissen, T. Hansen, S. Van Eck +6
A radial-velocity monitoring of the Carbon-Enhanced Metal-Poor (CEMP) star HE 0017+0055 over 8 years with the Nordic Optical Telescope and Mercator telescopes reveals variability w…
Binary properties of CH and Carbon-Enhanced Metal-Poor stars
A. Jorissen, S. Van Eck, H. Van Winckel +8
The HERMES spectrograph installed on the 1.2-m Mercator telescope has been used to monitor the radial velocity of 13 low-metallicity carbon stars, among which 7 Carbon-Enhanced Met…
Mass Measurements of Isolated Objects from Space-based Microlensing
Wei Zhu, S. Calchi Novati, A. Gould +78
We report on the mass and distance measurements of two single-lens events from the 2015 \emph{Spitzer} microlensing campaign. With both finite-source effect and microlens parallax…
KIC 10080943: An eccentric binary system containing two pressure- and gravity-mode hybrid pulsators
V. S. Schmid, A. Tkachenko, C. Aerts +14
Gamma Doradus and delta Scuti pulsators cover the transition region between low mass and massive main-sequence stars, and as such, are critical for testing stellar models. When the…
On the current solar magnetic activity in the light of its behaviour during the Holocene
F. Inceoglu, R. Simoniello, M. F. Knudsen +3
Solar modulation potential (SMP) reconstructions based on cosmogenic nuclide records reflect changes in the open solar magnetic field and can therefore help us obtain information o…
The role of binaries in the enrichment of the early Galactic halo. I. r-process-enhanced metal-poor stars
T. T. Hansen, J. Andersen, B. Nordstrøm +3
The detailed chemical composition of most metal-poor halo stars has been found to be highly uniform, but a minority of stars exhibit dramatic enhancements in their abundances of he…
KIC 10080943: a binary star with two Doradus/ Scuti hybrid pulsators. Analysis of the g modes
M. A. Keen, T. R. Bedding, S. J. Murphy +5
We use four years of Kepler photometry to study the non-eclipsing spectroscopic binary KIC 10080943. We find both components to be Doradus/ Scuti hybrids, which pulsate in b…
Observational - relation for Sct stars using eclipsing binaries and space photometry
Antonio García Hernández, Susana Martín-Ruiz, Mário J. P. F. G. Monteiro +4
Delta Scuti ( Sct) stars are intermediate-mass pulsators, whose intrinsic oscillations have been studied for decades. However, modelling their pulsations remains a real theoreti…