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397 papers · 1 filter
Gravitational wave burst search in the Virgo C7 data
The Virgo Collaboration, F. Acernese
A search for gravitational wave burst events has been performed with the Virgo C7 commissioning run data that have been acquired in September 2005 over five days. It focused on un-…
Disentangling age and metallicity in distant unresolved stellar systems
M. Cantiello, E. Brocato, G. Raimondo
We present some results of an observational and theoretical study on unresolved stellar systems based on the Surface Brightness Fluctuations (SBF) technique. It is shown that SBF m…
XMM-Newton detects a relativistically broadened iron line in the spectrum of the ms X-ray pulsar SAX J1808.4-3658
A. Papitto, T. Di Salvo, A. D'Aì +5
We report on a 63-ks long XMM-Newton observation of the accreting millisecond pulsar SAX J1808.4-3658 during the latest X-ray outburst which started on September 21st 2008. The pn…
The Environments of Active Galactic Nuclei within the zCOSMOS Density Field
J. D. Silverman, K. Kovac, C. Knobel +58
The impact of environment on AGN activity up to z~1 is assessed by utilizing a mass-selected sample of galaxies from the 10k catalog of the zCOSMOS spectroscopic redshift survey. W…
Fluorine in AGB Carbon Stars Revisited
C. Abia, A. Recio-Blanco, P. de Laverny +3
A reanalysis of the fluorine abundance in three Galactic AGB carbon stars (TX Psc, AQ Sgr and R Scl) has been performed from the molecular HF (1-0) R9 line at 2.3358 m. High-res…
The VLA Survey of the Chandra Deep Field South. IV. Source Population
P. Padovani, V. Mainieri, P. Tozzi +5
We present a detailed analysis of 256 radio sources from our deep (flux density limit of 42 microJy at the field centre at 1.4 GHz) Chandra Deep Field South 1.4 and 5 GHz VLA surve…