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19932026
most citedThe Gaia mission

7.1k citations

Showing 2007 · astro-phShow all

44 papers · 2 filters

astro-ph2007★ 62 cited

Revised statistics of radio halos and the re-acceleration model

R. Cassano, G. Brunetti, T. Venturi +4

Aims. The statistical properties of radio halos can be used to discriminate among the possible models for their origin. Therefore an unbiased and exhaustive investigation in this d…

astro-ph2007★ 19 cited

Constraining the nature of High Frequency Peakers. II. Polarization properties

M. Orienti, D. Dallacasa

Aims: The ``bright'' High Frequency Peakers (HFPs) sample is a mixture of blazars and intrinsically small and young radio sources. We investigate the polarimetric characteristics o…

astro-ph2007★ 15 cited

Tracing the gas at redshift 1.7-3.5 with the Lyman-alpha forest: the FLO approach

F. Saitta, V. D'Odorico, M. Bruscoli +3

[Abridged] We present FLO (From Lines to Over-densities), a new technique to reconstruct the hydrogen density field for the Lya forest lines observed in high resolution QSO spectra…

astro-ph2007★ 20 cited

Activity cycle of the giant star of Z Andromedae and its spin period

Elia M. Leibowitz, Liliana Formiggini

We have reanalyzed the long-term optical light curve (LC) of the symbiotic star Z Andromedae, covering 112--yr of mostly visual observations. Two strictly periodic and one quasi-pe…

astro-ph2007★ 31 cited

Highly deuterated pre-stellar cores in a high-mass star formation region

F. Fontani, P. Caselli, T. L. Bourke +2

We have observed the deuterated gas in the high-mass star formation region IRAS 05345+3157 at high-angular resolution, in order to determine the morphology and the nature of such g…

astro-ph2007★ 90 cited

SANEPIC: A Map-Making Method for Timestream Data From Large Arrays

G. Patanchon, P. A. R. Ade, J. J. Bock +23

We describe a map-making method which we have developed for the Balloon-borne Large Aperture Submillimeter Telescope (BLAST) experiment, but which should have general application t…

astro-ph2007★ 18 cited

Radio spectrum evolution and magnetic field in extreme GPS radio sources. The case of RXJ1459+3337

M. Orienti, D. Dallacasa

Aims: The knowledge of the properties of the youngest radio sources is very important in order to trace the earliest phase of the evolution of the radio emission. RXJ1459+3337, wit…

astro-ph2007★ 148 cited

The Balloon-borne Large Aperture Submillimeter Telescope: BLAST

E. Pascale, P. A. R. Ade, J. J. Bock +27

The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) is a sub-orbital surveying experiment designed to study the evolutionary history and processes of star formation in…

astro-ph2007★ 124 cited

The intracluster magnetic field power spectrum in Abell 2382

D. Guidetti, M. Murgia, F. Govoni +5

The goal of this work is to put constraints on the strength and structure of the magnetic field in the cluster of galaxies A2382. We investigate the relationship between magnetic f…

astro-ph2007★ 1 cited

The ATESP 5 GHz radio survey. II. Physical properties of the faint radio population

A. Mignano, I. Prandoni, L. Gregorini +5

One of the most debated issues about sub-mJy radio sources, which are responsible for the steepening of the 1.4 GHz source counts, is the origin of their radio emission. Particular…

astro-ph2007★ 17 cited

ATCA observations of the very young Planetary Nebula SAO 244567

G. Umana, C. Trigilio, L. Cerrigone +2

The radio emission from the youngest known Planetary nebula, SAO244567, has been mapped at 1384, 2368, 4800, 8640, 16832 and 18752 MHz by using the Australian Telescope Compact Arr…

astro-ph2007★ 12 cited

Millimeter observations of Planetary Nebulae: a contribution to the Planck pre-launch catalogue

G. Umana, P. Leto, C. Trigilio +5

We present new millimetre 43 GHz observations of a sample of radio-bright Planetary Nebulae. Such observations were carried out to have a good determination of the high-frequency r…

astro-ph2007★ 158 cited

Cosmic rays and Radio Halos in galaxy clusters : new constraints from radio observations

G. Brunetti, T. Venturi, D. Dallacasa +4

Clusters of galaxies are sites of acceleration of charged particles and sources of non-thermal radiation. We report on new constraints on the population of cosmic rays in the Intra…

astro-ph2007★ 71 cited

Water maser variability over 20 years in a large sample of star-forming regions: the complete database

M. Felli, J. Brand, R. Cesaroni +10

Context. Water vapor emission at 22 GHz from masers associated with star-forming regions is highly variable. Aims. We present a database of up to 20 years of monitoring of a sample…

astro-ph2007★ 4 cited

Geometrical tests of cosmological models. III. The cosmology-evolution diagram at z=1

C. Marinoni, A. Saintonge, T. Contini +22

The rotational velocity of distant galaxies, when interpreted as a size (luminosity) indicator, may be used as a tool to select high redshift standard rods (candles) and probe worl…

astro-ph2007★ 13 cited

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…

astro-ph2007★ 67 cited

The space density of cataclysmic variables: constraints from the ROSAT North Ecliptic Pole Survey

M. L. Pretorius, C. Knigge, D. O'Donoghue +3

We use the ROSAT North Ecliptic Pole (NEP) survey to construct a small, but purely X-ray flux-limited sample of cataclysmic variable stars (CVs). The sample includes only 4 systems…

astro-ph2007★ 47 cited

Radio morphology and spectral analysis of cD galaxies in rich and poor galaxy clusters

S. Giacintucci, T. Venturi, M. Murgia +5

We present a radio morphological study and spectral analysis for a sample of 13 cD galaxies in rich and poor clusters of galaxies.} Our study is based on new high sensitivity Giant…

astro-ph2007★ 63 cited

Constraining the nature of High Frequency Peakers. I. The spectral variability

M. Orienti, D. Dallacasa, C. Stanghellini

We investigate the spectral characteristics of 51 candidate High Frequency Peakers (HFPs), from the ``bright'' HFP sample, in order to determine the nature of each object, and to o…

astro-ph2007★ 1 cited

B2 1144+35B, a giant low power radio galaxy with superluminal motion. Orientation and evidence for recurrent activity

G. Giovannini, M. Giroletti, G. B. Taylor

The goal of this work is a detailed study of the nearby, low power radio galaxy B2 1144+35B. For this purpose, we performed new Very Long Baseline Array (VLBA) and Very Large Array…

astro-ph2007★ 23 cited

The assessment of the near infrared identification of Carbon stars. I. The Local Group galaxies WLM, IC 10 and NGC 6822

P. Battinelli, S. Demers, F. Mannucci

{The selection of AGB C and M stars from NIR colours has been done in recent years using adjustable criteria that are in needs of standardization if one wants to compare, in a cohe…

astro-ph2007★ 14 cited

High redshift X-ray galaxy clusters. I. The impact of point sources on the cluster properties

M. Branchesi, I. M. Gioia, C. Fanti +1

The current generation of X-ray observatories like Chandra allows studies with very fine spatial details. It is now possible to resolve X-ray point sources projected into the clust…

astro-ph2007★ 75 cited

Discovery of diffuse radio emission at the center of the most X-ray-luminous cluster RX J1347.5-1145

Myriam Gitti, Chiara Ferrari, Wilfried Domainko +2

We report on new VLA radio observations of the distant cluster RX J1347.5-1145, which is the most luminous in X-rays. We aim at investigating the possible presence of diffuse and e…

astro-ph2007★ 22 cited

On the nature of optical nuclei in FR I radio-galaxies from ACS/HST imaging polarimetry

Alessandro Capetti, David J. Axon, Marco Chiaberge +4

We obtained optical imaging polarimetry with the ACS/HRC aboard the HST of the 9 closest radio-galaxies in the 3C catalogue with an FR I morphology. The nuclear sources seen in dir…