4.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR463 papers
- European Southern ObservatoryCL443 papers
- Pontificia Universidad Católica de ChileCL281 papers
- University of WarsawPL244 papers
- California Institute of TechnologyUS242 papers
- University of ChileCL232 papers
- Space Telescope Science InstituteUS212 papers
- Center for Astrophysics Harvard & SmithsonianUS197 papers
- University of CambridgeGB192 papers
- Millennium Institute of AstrophysicsCL186 papers
- Universidad Andrés BelloCL177 papers
- Observatoire de ParisFR169 papers
54 papers · 1 filter
Invariant conserved currents for gravity
Yuri N. Obukhov, Guillermo F. Rubilar
We develop a general approach, based on the Lagrange-Noether machinery, to the definition of invariant conserved currents for gravity theories with general coordinate and local Lor…
Invariant conserved currents in gravity theories: diffeomorphisms and local gauge symmetries
Yuri N. Obukhov, Guillermo F. Rubilar
Previously, we have developed a general method to construct invariant conserved currents and charges in gravitational theories with Lagrangians that are invariant under spacetime d…
On the newly discovered Canes Venatici II dSph galaxy
C. Greco, M. Dall'Ora, G. Clementini +11
We report on the detection of variable stars in the Canes Venatici II (CVn II) dwarf spheroidal galaxy, a new satellite of the Milky Way recently discovered by the Sloan Digital Sk…
Testing the nature of S0 galaxies using planetary nebula kinematics in NGC 1023
E. Noordermeer, M. R. Merrifield, L. Coccato +9
We investigate the manner in which lenticular galaxies are formed by studying their stellar kinematics: an S0 formed from a fading spiral galaxy should display similar cold outer d…
Possible optical detection of a fast, nearby radio pulsar PSR B1133+16
S. V. Zharikov, Yu. A. Shibanov, R. E. Mennickent +1
Aims: We performed deep optical observations of the field of an old, fast-moving radio pulsar PSR B1133+16 in an attempt to detect its optical counterpart and a bow shock nebula. M…
The Afterglows of Swift-era Gamma-Ray Bursts. I. Comparing pre-Swift and Swift era Long/Soft (Type II) GRB Optical Afterglows
D. A. Kann, S. Klose, B. Zhang +73
We have gathered optical photometry data from the literature on a large sample of Swift-era gamma-ray burst (GRB) afterglows including GRBs up to September 2009, for a total of 76…
The dark matter halo of NGC 1399 - CDM or MOND?
T. Richtler, Y. Schuberth, M. Hilker +3
Central galaxies in galaxy clusters may be key discriminants in the competition between the cold dark matter (CDM) paradigm and modified Newtonian dynamics (MOND). We investigate t…
OGLE-TR-211 - a new transiting inflated hot Jupiter from the OGLE survey and ESO LP666 spectroscopic follow-up program
A. Udalski, F. Pont, D. Naef +24
We present results of the photometric campaign for planetary and low-luminosity object transits conducted by the OGLE survey in 2005 season (Campaign #5). About twenty most promisi…
The remarkable properties of the symbiotic star AE Circinus
R. E. Mennickent, J. Greiner, J. Arenas +4
We present new optical spectroscopy and photometry, 2MASS infrared observations and 24 years of combined AAVSO and AFOEV photometry of the symbiotic star candidate æ. The long-term…
Stroemgren metallicity calibration: the m1, b-y relation
A. Calamida, G. Bono, P. B. Stetson +15
We performed a new calibration of the Stroemgren metallicity index m1 based on the b-y color of cluster red giant stars. The current Metallicity-Index-Color relation is not linear…
Wide-Field Survey of Globular Clusters in M31. II. Kinematics of the Globular Cluster System
Myung Gyoon Lee, Ho Seong Hwang, Sang Chul Kim +4
We present a kinematic analysis of the globular cluster(GC) system in M31. Using the photometric and spectroscopic database of 504 GCs, we have investigated the kinematics of the M…
XMM-Newton Detection of a Compton-thick AGN in the 1-Jy ULIRG/LINER F04103-2838
Stacy H. Teng, S. Veilleux, A. S. Wilson +3
We report on the detection of Fe Kalpha emission in F041032838, an ultraluminous infrared galaxy (ULIRG; log[L/L] 12) that is optically classified as a…
A transiting planet among 23 new near-threshold candidates from the OGLE survey - OGLE-TR-182
F. Pont, O. Tamuz, A. Udalski +24
By re-processing the data of the second season of the OGLE survey for planetary transits and adding new mesurements on the same fields gathered in subsequent years with the OGLE te…
Solution and Asymptotic Behavior for a Nonlocal Coupled System of Reaction-Diffusion
Carlos Alberto Raposo, Mauricio Sepulveda, Octavio Vera +2
This paper concerns with existence, uniqueness and asymptotic behavior of the solutions for a nonlocal coupled system of reaction-diffusion. We prove the existence and uniqueness o…
Supersymmetry, quark confinement and the harmonic oscillator
S. A. Bruce, P. C. Minning
We study some quantum systems described by noncanonical commutation relations formally expressed as [q,p]=ihbar(I + chi H), where H is the associated (harmonic oscillator-like) Ham…
Intra Cluster Globular Clusters around NGC 1399 in Fornax?
Y. Schuberth, T. Richtler, L. Bassino +1
We investigate whether the globular clusters (GCs) in the recently published sample of GCs in the Fornax cluster by Bergond and coworkers are indeed intra-cluster objects. We combi…
Warm inflation on the brane
M. Antonella Cid, Sergio del Campo, Ramon Herrera
In this paper, warm inflationary models on a brane scenario are studied. Here we consider slow-roll inflation and high-dissipation regime in a high-energy scenario. General conditi…
A Catalogue of Be Stars in the Direction of the Galactic Bulge
B. E. Sabogal, R. E. Mennickent, G. Pietrzyński +4
Detailed studies of Be stars in environments with different metallicities like the Magellanic Clouds or the Galactic bulge are necessary to understand the formation and evolution m…
Sizes of Confirmed Globular Clusters in NGC 5128: A Wide-Field High-Resolution Study
M. Gomez, K. A. Woodley
Using Magellan/IMACS images covering a 1.2 x 1.2 sq. degree FOV with seeing of 0.4"-0.6", we have applied convolution techniques to analyse the light distribution of 364 confirmed…
A Quantitative Link Between Globular Clusters and the Stellar Halos in Elliptical Galaxies
J. C. Forte, F. R. Faifer, D. Geisler
This paper explores the quantitative connection between globular clusters and the diffuse stellar population of the galaxies they are associated with. Both NGC 1399 and NGC 4486 (M…
The pre-cataclysmic variable, LTT560
C. Tappert, B. T. Gaensicke, L. Schmidtobreick +3
System parameters of the object LTT560 are determined in order to clarify its nature and evolutionary status. We apply time-series photometry to reveal orbital modulations of the l…
The star pile in Abell 545
R. Salinas, T. Richtler, A. J. Romanowsky +2
Context:Struble (1988) found what appeared to be a cD halo without cD galaxy in the center of the galaxy cluster Abell 545. This remarkable feature has been passed almost unnoticed…
Variable Stars in the Newly Discovered Milky Way Dwarf Spheroidal Satellite Canes Venatici I
Charles Kuehn, Karen Kinemuchi, Vincenzo Ripepi +11
We have identified 23 RR Lyrae stars and 3 possible Anomalous Cepheids among 84 candidate variables in the recently discovered Canes Venatici I dwarf spheroidal galaxy. The mean pe…
A new calibration of Galactic Cepheid Period-Luminosity relations from B to K bands, and a comparison to LMC PL relations
P. Fouque, P. Arriagada, J. Storm +8
The universality of the Cepheid Period-Luminosity relations has been under discussion since metallicity effects have been assumed to play a role in the value of the intercept and,…