5.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidade do PortoPT1k papers
- Centre National de la Recherche ScientifiqueFR606 papers
- Institute of Astrophysics and Space SciencesPT606 papers
- University of GenevaCH406 papers
- Instituto de Astrofísica de CanariasES387 papers
- Institut d'Astrophysique de ParisFR334 papers
- Universidad de La LagunaES330 papers
- National Institute for AstrophysicsIT296 papers
- University of CambridgeGB267 papers
- European Southern ObservatoryCL260 papers
- Aix-Marseille UniversitéFR232 papers
- Osservatorio Astronomico di PadovaIT225 papers
23 papers · 2 filters
Probing the close environment of massive young stars with spectro-astrometry
J. M. C. Grave, M. S. N. Kumar
Aims: We test the technique of spectro-astrometry as a potential method to investigate the close environment of massive young stars. Method: Archival VLT near infrared K band spect…
An asymmetry detected in the disk of Kappa CMa with the AMBER/VLTI
Anthony Meilland, Florentin Millour, Philippe Stee +7
Aims. We study the geometry and kinematics of the circumstellar environment of the Be star Kappa CMa in the Br gamma emission line and its nearby continuum. Methods. We use the VLT…
The evolution of clusters in the CLEF cosmological simulation: X-ray structural and scaling properties
Scott T. Kay, Antonio C. da Silva, Nabila Aghanim +5
We present results from a study of the X-ray cluster population that forms within the CLEF cosmological hydrodynamics simulation, a large N-body/SPH simulation of the Lambda CDM co…
Direct constraint on the distance of y2 Velorum from AMBER/VLTI observations
F. Millour, R. G. Petrov, O. Chesneau +95
In this work, we present the first AMBER observations, of the Wolf-Rayet and O (WR+O) star binary system y2 Velorum. The AMBER instrument was used with the telescopes UT2, UT3, and…
Improved pulsating models of magnetic Ap stars I: exploring different magnetic field configurations
M. S. Cunha
Magnetic perturbations to the frequencies of low degree, high radial order, axisymmetric pulsations in stellar models permeated by large scale magnetic fields are presented. Magnet…
Discovery of Scuti pulsation in the Herbig Ae star VV Ser
V. Ripepi, S. Bernabei, M. Marconi +7
A new observational study of the Herbig Ae star VV Ser has been performed in order to detect and accurately measure pulsation frequencies in the Scuti range. As it belongs to t…
WFCAM, Spitzer-IRAC and SCUBA observations of the massive star forming region DR21/W75: I. The collimated molecular jets
C. J. Davis, M. S. N. Kumar, G. Sandell +3
We present wide-field near-infrared images of the DR21/W75 high-mass star forming region, obtained with the Wide Field Camera, WFCAM, on the United Kingdom Infrared Telescope. Broa…
WFCAM, Spitzer-IRAC and SCUBA observations of the massive star forming region DR21/W75: II. Stellar content and star formation
M. S. N. Kumar, C. J. Davis, J. M. C. Grave +2
Wide field near-infrared observations and Spitzer Space Telescope IRAC observations of the DR21/W75 star formation regions are presented. The photometric data are used to analyse t…
Empirical strong-line oxygen abundance calibrations from galaxies with electron temperature measurements
S. Y. Yin, Y. C. Liang, F. Hammer +4
We determine the gas-phase oxygen abundance for a sample of 695 galaxies and H II regions with reliable detections of [O III]4363, using the temperature-sensitive Te method. Our ai…
Near-Infrared interferometry of Eta Carinae with high spatial and spectral resolution using the VLTI and the AMBER instrument
G. Weigelt
We present the first NIR spectro-interferometry of the LBV Eta Carinae. The K band observations were performed with the AMBER instrument of the ESO Very Large Telescope Interferome…
The XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST)
M. Guedel, K. R. Briggs, K. Arzner +18
(abridged:) The XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST) surveys the most populated ~5 square degrees of the Taurus star formation region, using the XMM-Newt…
The VIMOS VLT Deep Survey:The ultraviolet galaxy luminosity function and luminosity density at 3<z<4
S. Paltani, O. Le Fevre, O. Ilbert +46
We study the LF of the high-z galaxy population with 3<z<4 using a purely I-band magnitude-selected spectroscopic sample obtained in the framework of the VVDS. We determine the LF…
VSI: a milli-arcsec spectro-imager for the VLTI
Fabien Malbet, Pierre Kern, Jean-Philippe Berger +14
VLTi Spectro-Imager (VSI) is a proposition for a second generation VLTI instrument which is aimed at providing the ESO community with the capability of performing image synthesis a…
The VIMOS-VLT Deep Survey. Color bimodality and the mix of galaxy populations up to z~2
P. Franzetti, M. Scodeggio, B. Garilli +41
In this paper we discuss the mix of star-forming and passive galaxies up to z~2, based on the first epoch VIMOS-VLT Deep Survey (VVDS) data.In agreement with previous works we find…
Constraining the wind launching region in Herbig Ae stars: AMBER/VLTI spectroscopy of HD104237
E. Tatulli, A. Isella, A. Natta +3
We investigate the origin of the emission of the Herbig Ae star HD104237 on Astronomical Unit (AU) scales. Using AMBER/VLTI at a spectral resolution R=1500 spatially…
Star formation in the vicinity of the IC 348 cluster
M. Tafalla, M. S. N. Kumar, R. Bachiller
Aims. We present molecular line observations of the southwestern part of the IC 348 young cluster, and we use them together with NIR and mm continuum data to determine the distribu…
Ages and metallicities of early-type galaxies in the SDSS: new insight into the physical origin of the colour-magnitude and the Mg2-sigmaV relations
A. Gallazzi, S. Charlot, J. Brinchmann +1
We exploit recent constraints on the ages and metallicities of early-type galaxies in the Sloan Digital Sky Survey (SDSS) to gain new insight into the physical origin of two fundam…
The XMM Cluster Survey: A Massive Galaxy Cluster at z=1.45
S. A. Stanford, A. K. Romer, K. Sabirli +14
We report the discovery of XMMXCS J2215.9-1738, a massive galaxy cluster at z =1.45, which was found in the XMM Cluster Survey. The cluster candidate was initially identified as an…
On the effect of overshooting as predicted by the modelling of the pre-main sequence evolution of a 2 solar-mass star
J. P. Marques, M. J. P. F. G. Monteiro, J. Fernandes
We discuss the effects of convective overshooting in the PMS evolution of intermediate mass stars, by analysing in detail the early evolution towards the main sequence of a 2 M_sun…
Report on the CoRoT Evolution and Seismic Tools Activity
M. K. J. P. F. G. Monteiro, Y. Lebreton, J. Montalban +24
We present the work undertaken by the Evolution and Seismic Tools Activity (ESTA) team of the CoRoT Seismology Working Group. We have focused on two main tasks: Task 1 - now finish…
X-ray and optical bursts and flares in YSOs: results from a 5-day XMM-Newton monitoring campaign of L1551
G. Giardino, F. Favata, B. Silva +3
We present the results of a five-day monitoring campaign with XMM-Newton of six X-ray bright young stellar objects (YSOs) in the star-forming complex L1551 in Taurus. All stars pre…
Interferometric data reduction with AMBER/VLTI.Principle,estimators and illustration
E. Tatulli, the AMBER consortium
We present in this paper an innovative data reduction method for single-mode interferometry. It has been specifically developed for the AMBER instrument, the three-beam combiner of…
A Radio Census of Nuclear Activity in Nearby Galaxies
M. E. Filho, P. D. Barthel, L. C. Ho
In order to determine the incidence of black hole accretion-driven nuclear activity in nearby galaxies, as manifested by their radio emission, we have carried out a high-resolution…