activity
19982026
most citedBright OB stars in the Galaxy - III. Constraints on the radial stratification of the clumping factor in hot star winds from a combined Halpha, IR and radio analysis

263 citations · 1.6k across the 42 of their papers we have counts for

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Showing astro-ph.COShow all

6 papers · 1 filter

astro-ph.CO2013★ 40 cited

A sample of small size compact steep-spectrum radio sources. VLBI images and VLA polarization at 5 GHz

D. Dallacasa, M. Orienti, C. Fanti +2

Global VLBI observations at 5 GHz have been performed to study the source morphology in 10 compact steep-spectrum (CSS) sources selected from the Peacock & Wall catalogue with the…

astro-ph.CO2012★ 26 cited

Kinematics of the Compact Symmetric Object OQ 208 revisited

Fang Wu, Tao An, Willem A. Baan +6

Aims. A long timeline kinematic study of the archetypal CSO OQ 208 sheds light on the physical properties of the most compact radio sources. Methods. Archival data from the VLBA at…

astro-ph.CO2011★ 18 cited

The B3-VLA CSS sample. VIII: New optical identifications from the Sloan Digital Sky Survey. The ultraviolet-optical spectral energy distribution of the young radio sources

C. Fanti, R. Fanti, A. Zanichelli +2

Compact steep-spectrum radio sources and giga-hertz peaked spectrum radio sources (CSS/GPS) are generally considered to be mostly young radio sources. In recent years we studied at…

astro-ph.CO2010★ 37 cited

Spectral variability in faint high frequency peakers

M. Orienti, D. Dallacasa, C. Stanghellini

We present the analysis of simultaneous multi-frequency Very Large Array (VLA) observations of 57 out of 61 sources from the ``faint'' high frequency peaker (HFP) sample carried ou…

astro-ph.CO2009★ 15 cited

High Frequency Peakers: The Faint Sample

Carlo Stanghellini, Daniele Dallacasa, Monica Orienti

We present a sample of sources with convex radio spectra peaking at frequencies above a few GHz, known as "High Frequency Peakers" (HFPs). A "bright" sample with a flux density lim…

astro-ph.CO2009★ 6 cited

Transverse motions in CSOs?

Carlo Stanghellini, Daniele Dallacasa, Tiziana Venturi +2

The measurement of proper motions in CSOs is a powerful tool to determine the dynamical evolution of the newly born extragalactic radio sources. We observed 3 CSOs with the VLBA in…