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 ScientifiqueFR264 papers
- Max Planck Institute for Radio AstronomyDE240 papers
- Institut de Radioastronomie MillimétriqueFR216 papers
- Observatoire de ParisFR156 papers
- Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et AtmosphèresFR145 papers
- California Institute of TechnologyUS139 papers
- Center for Astrophysics Harvard & SmithsonianUS138 papers
- Instituto de Astrofísica de AndalucíaES132 papers
- Centro de AstrobiologíaES123 papers
- Astrophysique, Instrumentation et ModélisationFR109 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR108 papers
- Institut de Planétologie et d'Astrophysique de GrenobleFR106 papers
89 papers · 1 filter
Simultaneous NIR/sub-mm observation of flare emission from SgrA*
A. Eckart, R. Schoedel, M. Garcia-Marin +28
We report on a successful, simultaneous observation and modeling of the sub-millimeter to near-infrared flare emission of the Sgr A* counterpart associated with the super-massive b…
New views on bar pattern speeds from the NUGA survey
V. Casasola, S. Garcia-Burillo, F. Combes +10
We present a review on bar pattern speeds from preliminary results in the context of the Nuclei of Galaxies (NUGA) project. The large variety of molecular circumnuclear morphologie…
Results of WEBT, VLBA and RXTE monitoring of 3C 279 during 2006-2007
V. M. Larionov, S. G. Jorstad, A. P. Marscher +2
We present radio-to-optical data taken by the WEBT, supplemented by VLBA and RXTE observations, of 3C 279. Our goal is to use this extensive database to draw inferences regarding t…
Observations of the Goldreich-Kylafis effect in star-forming regions with XPOL at the IRAM 30m telescope
Jan Forbrich, Helmut Wiesemeyer, Clemens Thum +2
The Goldreich-Kylafis (GK) effect causes certain molecular line emission to be weakly linearly polarized, e.g., in the presence of a magnetic field. Compared to polarized dust emis…
A new activity phase of the blazar 3C 454.3. Multifrequency observations by the WEBT and XMM-Newton in 2007-2008
C. M. Raiteri, M. Villata, V. M. Larionov +2
We present and analyse the WEBT multifrequency observations of 3C 454.3 in the 2007-2008 observing season, including XMM-Newton observations and near-IR spectroscopic monitoring, a…
Virtual Observatory activities in the AMIGA group
J. E. Ruíz, J. D. Santander-Vela, E. García +3
The AMIGA project (Analysis of the interstellar Medium of Isolated GAlaxies) is an international collaboration led from the Instituto de Astrofísica de Andalucía (CSIC). The group'…
Radio Astronomy Data Model for Single-Dish Multiple-Feed Telescopes, and Robledo Archive Architecture
J. D. Santander-Vela, E. Garcia, J. F. Gomez +7
All the effort that the astrophysical community has put into the development of the Virtual Observatory (VO) has surpassed the non-return point: the VO is a reality today, and an i…
Coordinated mm/sub-mm observations of Sagittarius A* in May 2007
D. Kunneriath, A. Eckart, S. Vogel +26
At the center of the Milky Way, with a distance of ~8 kpc, the compact source Sagittarius A* (SgrA*) can be associated with a super massive black hole of ~4x10^6 solar masses. SgrA…
Coordinated multi-wavelength observations of Sgr A*
A. Eckart, R. Schoedel, F. K. Baganoff +26
We report on recent near-infrared (NIR) and X-ray observations of Sagittarius A* (Sgr A*), the electromagnetic manifestation of the ~4x10^6 solar masses super-massive black hole (S…
Optical and infrared flares from a transient Galactic soft gamma-ray repeater
A. J. Castro-Tirado, A. de Ugarte Postigo, J. Gorosabel +33
Soft gamma-ray repeaters (SGRs) are a rare type of gamma-ray transient sources that are ocasionally detected as bursts in the high-energy sky. They are thought to be produced by ma…
HCN(1-0) enhancement in the bar of NGC 2903
S. Leon, S. Jeyakumar, D. Perez-Ramirez +3
We have mapped the \hcn emission from two spiral galaxies, NGC2903 and NGC3504 to study the gas properties in the bars. The HCN(1-0) emission is detected in the center and along th…
Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71, III. Rapid and correlated flux density variability from radio to sub-mm bands
L. Fuhrmann, T. P. Krichbaum, A. Witzel +22
The BL Lac object S5 0716+71 was observed in a global multi-frequency campaign to search for rapid and correlated flux density variability and signatures of an inverse-Compton (IC)…
XPOL - the correlation polarimeter at the IRAM 30m telescope
Clemens Thum, Helmut Wiesemeyer, Gabriel Paubert +2
XPOL, the first correlation polarimeter at a large millimeter telescope, uses a flexible digital correlator to measure all four Stokes parameters simultaneously, i.e. the total pow…
The high activity of 3C 454.3 in autumn 2007. Monitoring by the WEBT during the AGILE detection
C. M. Raiteri, M. Villata, W. P. Chen +5
The quasar-type blazar 3C 454.3 underwent a phase of high activity in summer and autumn 2007, which was intensively monitored in the radio-to-optical bands by the Whole Earth Blaza…
LSST: from Science Drivers to Reference Design and Anticipated Data Products
Željko Ivezić, Steven M. Kahn, J. Anthony Tyson +310
(Abridged) We describe here the most ambitious survey currently planned in the optical, the Large Synoptic Survey Telescope (LSST). A vast array of science will be enabled by a sin…
The AMIGA sample of isolated galaxies. VII. Far-infrared and radio continuum study of nuclear activity
J. Sabater, S. Leon, L. Verdes-Montenegro +3
We present a study of the nuclear activity in a well-defined sample of the most isolated galaxies in the local Universe traced by their far-infrared (FIR) and radio continuum emiss…
Large excess of heavy nitrogen in both hydrogen cyanide and cyanogen from comet 17P/Holmes
D. Bockelée-Morvan, N. Biver, E. Jehin +15
From millimeter and optical observations of the Jupiter-family comet 17P/Holmes performed soon after its huge outburst of October 24, 2007, we derive 14 N/15N = 139 +/- 26 in HCN,…
Molecular gas in nearby elliptical radio galaxies
B. Ocana-Flaquer, S. Leon, J. Lim +2
Powerful radio-AGN are hosted by massive elliptical galaxies which are usually very poor in molecular gas. Nevertheless the central Black Hole (BH) needs molecular gas for the nucl…
Molecular Gas in NUclei of GAlaxies (NUGA): IX. The decoupled bars and gas inflow in NGC 2782
L. K. Hunt, F. Combes, S. García-Burillo +8
We present CO(1-0) and CO(2-1) maps of the starburst/Seyfert 1 galaxy NGC 2782, obtained with the IRAM interferometer. The CO emission is aligned along the stellar nuclear bar of r…
Extrasolar planet detection by binary stellar eclipse timing: evidence for a third body around CM Draconis
H. J. Deeg, B. Ocaña, V. P. Kozhevnikov +3
Context: New eclipse minimum timings of the M4.5/M4.5 binary CM Dra were obtained between the years 2000 and 2007. In combination with published timings going back to 1977, a clear…
Long-term observations of Uranus and Neptune at 90 GHz with the IRAM 30m telescope - (1985 -- 2005)
C. Kramer, R. Moreno, A. Greve
The planets Uranus and Neptune with small apparent diameters are primary calibration standards. We investigate their variability at ~90 GHz using archived data taken at the IRAM 30…
Tracing shocks and photodissociation in the Galactic center region
S. Martin, M. A. Requena-Torres, J. Martin-Pintado +1
We present a systematic study of the HNCO, C18O, 13CS, and C34S emission towards 13 selected molecular clouds in the Galactic center region. The molecular emission in these positio…
The innermost region of the water megamaser radio galaxy 3C403
A. Tarchi, A. Brunthaler, C. Henkel +3
The standard unified scheme of active galactic nuclei requires the presence of high column densities of gas and dust potentially obscuring the central engine. So far, few direct su…
Star formation in isolated AMIGA galaxies: dynamical influence of bars
S. Verley, F. Combes, L. Verdes-Montenegro +2
Star formation depends strongly both on the local environment of galaxies, and on the internal dynamics of the interstellar medium. To disentangle the two effects, we obtained, in…