3.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Slovak Academy of SciencesSK377 papers
- Centre National de la Recherche ScientifiqueFR328 papers
- University of GroningenNL256 papers
- Instituto de Astrofísica de CanariasES218 papers
- Leiden UniversityNL201 papers
- University of AmsterdamNL199 papers
- Université Paris CitéFR193 papers
- National Institute for AstrophysicsIT192 papers
- Czech Academy of Sciences, Astronomical InstituteCZ181 papers
- Sorbonne UniversitéFR178 papers
- Max Planck Institute for AstronomyDE177 papers
- Goddard Space Flight CenterUS172 papers
50 papers · 2 filters
Centaurus A: Morphology and kinematics of the HI disk
Christian Struve, Raffaella Morganti, Tom A. Oosterloo
We present first results of new ATCA HI emission and absorption observations of Centaurus A. The large-scale disk is described via a tilted-ring model. A broader redshifted absorpt…
Anomalous HI Gas in NGC 4395: Signs of Gas Accretion
George Heald, Tom Oosterloo
In recent years, it has become clear that large quantities of gas reside in the halos of many spiral galaxies. Whether the presence of this gas is ultimately a consequence of star…
The circumstellar medium around a rapidly rotating, chemically homogeneously evolving, possible gamma-ray burst progenitor
Allard Jan van Marle, Norbert Langer, Sung-Chul Yoon +1
Rapidly rotating, chemically homogeneously evolving massive stars are considered to be progenitors of long gamma-ray bursts. We present numerical simulations of the evolution of th…
Hyperflares of SGRs as an engine for millisecond extragalactic radio bursts
S. B. Popov, K. A. Postnov
We propose that the strong millisecond extragalactic radio burst (mERB) discovered by Lorimer et al. (2007) may be related to a hyperflare from an extragalactic soft gamma-ray repe…
XMM-Newton X-ray study of early type stars in the Carina OB1 association
I. I. Antokhin, G. Rauw, J. -M. Vreux +2
X-ray properties of the stellar population in the Carina OB1 association are examined with special emphasis on early-type stars. Their spectral characteristics provide some clues t…
A runaway collision in a young star cluster as the origin of the brightest supernova
Simon Portegies Zwart, Edward P. J. van den Heuvel
Supernova 2006gy in the galaxy NGC 1260 is the most luminous one recorded \cite{2006CBET..644....1Q, 2006CBET..647....1H, 2006CBET..648....1P, 2006CBET..695....1F}. Its progenitor…
Photometric Analysis of Recently Discovered Eclipsing Binary GSC 00008-00901
S. Parimucha, T. Pribulla, M. Vaňko +2
Photometric analysis of light curves of newly discovered eclipsing binary GSC 0008-00901 is presented. The orbital period is improved to 0.28948(11) days. Photometric param…
Distances to Galactic high-velocity clouds. Complex C
B. P. Wakker, D. G. York, J. C. Howk +8
We report the first determination of a distance bracket for the high-velocity cloud (HVC) complex C. Combined with previous measurements showing that this cloud has a metallicity o…
A Strong Upper Limit on the Pulsed Radio Luminosity of the Compact Object 1RXS J141256.0+792204
J. W. T. Hessels, B. W. Stappers, R. E. Rutledge +2
The ROSAT X-ray source 1RXS J141256.0+792204 has recently been identified as a likely compact object whose properties suggest it could be a very nearby radio millisecond pulsar at…
Integrated properties of mass segregated star clusters
E. Gaburov, M. Gieles
In this contribution we study integrated properties of dynamically segregated star clusters. The observed core radii of segregated clusters can be 50% smaller than the ``true'' cor…
A Search for Pulsed and Bursty Radio Emission from X-ray Dim Isolated Neutron Stars
V. I. Kondratiev, M. Burgay, A. Possenti +5
We have carried out a search for radio emission from six X-ray dim isolated neutron stars (XDINSs) observed with the Robert C. Byrd Green Bank Radio Telescope (GBT) at 820 MHz. No…
The interplay between radio jets and ISM in sub-kpc radio sources
Raffaella Morganti
This paper reviews the evidence for interaction between radio jets and their environment in small and intermediate (sub-kpc) scale radio sources. Observations of gas (both neutral…
FERO (Finding Extreme Relativistic Objects): statistics of relativistic broad Fe K alpha lines in AGN
A. L. Longinotti, I. de La Calle, S. Bianchi +2
The properties of the relativistically broadened Fe K alpha line emitted in Active Galactic Nuclei (AGN) are still debated among the AGN community. Recent works seem to exclude tha…
Miller's instability, microchaos and the short-term evolution of initially nearby orbits
Amina Helmi, Facundo Gomez
We study the phase-space behaviour of nearby trajectories in integrable potentials. We show that the separation of nearby orbits initially diverges very fast, mimicking a nearly ex…
Theoretical Spectral Models of the Planet HD 209458b with a Thermal Inversion and Water Emission Bands
Adam Burrows, Ivan Hubeny, Jano Budaj +2
We find that a theoretical fit to all the HD 209458b data at secondary eclipse requires that the dayside atmosphere of HD 209458b have a thermal inversion and a stratosphere. This…
Access to Stellar Population Models in the Virtual Observatory
Igor Chilingarian
A great effort is being made by the international Virtual Observatory community to build tools ready to be used by scientists. Presently, providing access to theoretical spectra in…
Age and metallicity of the bulges in lenticular galaxies
Olga K. Sil'chenko
Panoramic spectroscopic data of the sample of 80 nearby lenticular galaxies obtained with the Multi-Pupil Fiber Spectrograph of the 6-m telescope are presented. The SSP-equivalent…
Theoretical Spectra and Light Curves of Close-in Extrasolar Giant Planets and Comparison with Data
A. Burrows, J. Budaj, I. Hubeny
We present theoretical atmosphere, spectral, and light-curve models for extrasolar giant planets (EGPs) undergoing strong irradiation for which {\it Spitzer} planet/star contrast r…
Linking Jet Emission, X-ray States and Hard X-ray Tails in the Neutron Star X-ray Binary GX 17+2
S. Migliari, J. C. A. Miller-Jones, R. P. Fender +7
We present the results from simultaneous radio (Very Large Array) and X-ray (Rossi-X-ray Timing Explorer) observations of the Z-type neutron star X-ray binary GX~17+2. The aim is t…
Recent photometry of symbiotic stars - XII
A. Skopal, M. Vanko, T. Pribulla +4
We present new photometric observations of 15 symbiotic stars (EG And, Z And, AE Ara, BF Cyg, CH Cyg, CI Cyg, V1329 Cyg, TX CVn, AG Dra, Draco C-1, RW Hya, SY Mus, AR Pav, AG Peg,…
On classical and pseudobulges: The nature of bulges of early-type spirals
Reynier Peletier
Historically, galactic bulges are thought to be elliptical galaxy-like objects sitting in the middle of a generally larger disk. There are, however, more and more claims that some…
Diffuse Ionized Gas in the Dwarf Irregular Galaxy DDO 53
A. M. Hidalgo-Gamez
The spectral characteristics throughout the dwarf irregular galaxy DDO 53 are studied. The results are very similar to those for other irregular galaxies: high excitation and low v…
IAU Symposium 241 - Stellar Populations as Building Blocks of Galaxies
A. Vazdekis, R. F. Peletier
Stellar populations, building blocks of galaxies, are direct tracers of the star formation history, the chemical enrichment and the assembly of galaxies in the Universe. They therf…
From GHz to mHz: A Multiwavelength Study of the Acoustically Active 14 August 2004 M7.4 Solar Flare
J. C. Martinez-Oliveros, H. Moradi, D. Besliu-Ionescu +3
We carried out an electromagnetic acoustic analysis of the solar flare of 14 August 2004 in active region AR10656 from the radio to the hard X-ray spectrum. The flare was a GOES so…