10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National Institute for AstrophysicsIT642 papers
- Osservatorio Astronomico di PadovaIT505 papers
- Centre National de la Recherche ScientifiqueFR493 papers
- Instituto de Astrofísica de CanariasES338 papers
- University of PaduaIT326 papers
- Universidad de La LagunaES298 papers
- European Southern ObservatoryCL284 papers
- Astronomical Observatory of RomeIT283 papers
- University of GenevaCH273 papers
- Osservatorio Astrofisico di TorinoIT270 papers
- University of CataniaIT261 papers
- Astronomical Observatory of CapodimonteIT258 papers
184 papers · 1 filter
Modelling solar-like variability for the detection of Earth-like planetary transits. II) Performance of the three-spot modelling, harmonic function fitting, iterative non-linear filtering and sliding boxcar filtering
A. S. Bonomo, S. Aigrain, P. Bordé +1
We present a comparison of four methods of filtering solar-like variability to increase the efficiency of detection of Earth-like planetary transits by means of box-shaped transit…
The WEBT Campaign on the Intermediate BL Lac Object 3C66A in 2007-2008
M. Boettcher, K. Fultz
Prompted by a high optical state in September 2007, the Whole Earth Blazar Telescope (WEBT) consortium organized an intensive optical, near-IR (JHK) and radio observing campaign on…
Magnetic activity in the photosphere of CoRoT-Exo-2a. Active longitudes and short-term spot cycle in a young Sun-like star
A. F. Lanza, I. Pagano, G. Leto +18
The space experiment CoRoT has recently detected transits by a hot Jupiter across the disc of an active G7V star (CoRoT-Exo-2a) that can be considered as a good proxy for the Sun a…
Science with the World Space Observatory - Ultraviolet
Ana I. Gomez de Castro, Isabella Pagano, Mikhail Sachkov +4
The World Space Observatory-Ultraviolet (WSO-UV) will provide access to the UV range during the next decade. The instrumentation on board will allow to carry out high resolution im…
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…
Multiline Zeeman signatures as demonstrated through the Pseudo-line
M. Semel, J. C. Ramirez Velez, M. J. Stift +3
In order to get a significant Zeeman signature in the polarised spectra of a magnetic star, we usually 'add' the contributions of numerous spectral lines; the ultimate goal is to r…
HINODE Observations of Chromospheric Brightenings in the Ca II H Line during small-scale Flux Emergence Events
S. L. Guglielmino, F. Zuccarello, P. Romano +1
\ion{Ca}{2} H emission is a well-known indicator of magnetic activity in the Sun and other stars. It is also viewed as an important signature of chromospheric heating. However, the…
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…
CCD and photon-counting photometric observations of asteroids carried out at Padova and Catania observatories
Davide Gandolfi, Massimo Cigna, Daniele Fulvio +1
We present the results of observational campaigns of asteroids performed at Asiago Station of Padova Astronomical Observatory and at M.G. Fracastoro Station of Catania Astrophysica…
X-ray emission from dense plasma in CTTSs: Hydrodynamic modeling of the accretion shock
G. G. Sacco, C. Argiroffi, S. Orlando +3
High spectral resolution X-ray observations of CTTSs demonstrate the presence of plasma at T~2-3X10^6 K and n_e~10^11-10^13 cm^-3, unobserved in non-accreting stars. Stationary mod…
Eleven years of radio monitoring of the Type IIn supernova SN 1995N
Poonam Chandra, Christopher J. Stockdale, Roger A. Chevalier +6
We present radio observations of the optically bright Type IIn supernova SN 1995N. We observed the SN at radio wavelengths with the Very Large Array (VLA) for 11 years. We also obs…
A time - luminosity correlation for Gamma Ray Bursts in the X - rays
M. G. Dainotti, V. F. Cardone, S. Capozziello
Gamma ray bursts (GRBs) have recently attracted much attention as a possible way to extend the Hubble diagram to very high redshift. However, the large scatter in their intrinsic p…
CoRoT and stellar activity: preliminary results from the modelling of CoRoT-Exo-2a
A. F. Lanza, I. Pagano, G. Leto +3
We present a preliminary analysis of the photospheric activity of CoRoT-Exo-2a, a young G7V star accompanied by a transiting hot Jupiter recently discovered by CoRoT. We apply spot…
A multi-site campaign to measure solar-like oscillations in Procyon. I. Observations, Data Reduction and Slow Variations
Torben Arentoft, Hans Kjeldsen, Timothy R. Bedding +45
We have carried out a multi-site campaign to measure oscillations in the F5 star Procyon A. We obtained high-precision velocity observations over more than three weeks with eleven…
New triple systems in the RasTyc sample of stellar X-ray sources
A. Klutsch, A. Frasca, P. Guillout +4
During the study of a large set of late-type stellar X-ray sources, we discovered a large fraction of multiple systems. In this paper we investigate the orbital elements and kinema…
Transiting exoplanets from the CoRoT space mission IV: CoRoT-Exo-4b: A transiting planet in a 9.2 day synchronous orbit
S. Aigrain, A. Collier Cameron, M. Ollivier +32
CoRoT, the first space-based transit search, provides ultra-high precision light curves with continuous time-sampling over periods, of up to 5 months. This allows the detection of…
Radio continuum properties of young planetary nebulae
L. Cerrigone, G. Umana, C. Trigilio +3
We have selected a small sample of post-AGB stars in transition towards the planetary nebula and present new Very Large Array multi-frequency high-angular resolution radio observat…
The metamorphosis of Supernova SN2008D/XRF080109: a link between Supernovae and GRBs/Hypernovae
Paolo A. Mazzali, Stefano Valenti, Massimo Della Valle +38
The only supernovae (SNe) to have shown early gamma-ray or X-ray emission thus far are overenergetic, broad-lined Type Ic SNe (Hypernovae - HNe). Recently, SN 2008D shows several n…
Magnetic activity in the young star SAO 51891
K. Biazzo, A. Frasca, E. Marilli +3
We present preliminary results on a study based on contemporaneous photometric and spectroscopic observations of the young K0-1V star SAO 51891. We find that SAO 51891, a possible…
The star formation in the L1615/L1616 cometary cloud
Davide Gandolfi, Juan M. Alcalá, Silvio Leccia +6
The present work aims at performing a comprehensive census and characterisation of the pre-main sequence (PMS) population in the cometary cloud L1615/L1616, in order to assess the…
Solar twins in M67
L. Pasquini, K. Biazzo, P. Bonifacio +2
The discovery of true solar analogues is fundamental for a better understanding of the Sun and of the solar system. The open cluster M67 offers a unique opportunity to search for s…
AGN Jet-induced Feedback in Galaxies. I. Suppression of Star Formation
V. Antonuccio-Delogu, J. Silk
(Abridged) We study the interaction of relativistic jets from AGNs with the ISM in their host galaxy, using a series of Adaptive Mesh Refinement simulations of the evolution of the…
The gas turbulence in planetary nebulae: quantification and multi-D maps from long-slit, wide-spectral range echellogram
F. Sabbadin, M. Turatto, S. Benetti +2
This methodological paper is part of a short series dedicated to the long-standing astronomical problem of de-projecting the bi-dimensional, apparent morphology of a three-dimensio…
Comparing the performance of stellar variability filters for the detection of planetary transits
A. S. Bonomo, A. F. Lanza
We have developed a new method to improve the transit detection of Earth-sized planets in front of solar-like stars by fitting stellar microvariability by means of a spot model. A…