High Frequency Peaker (HFP) radio sources are an extreme class of active galactic nuclei whose nature has not been fully understood yet. They are compact...
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...
High mass Star formation in the giant molecular cloud NGC 6334: an infrared view
Sub-Arcsec images in the JHK_s, H_2 and Br_γ of three areas (I(N), F and NGC 6334 IV (MM3)) of the giant molecular cloud NGC 6334 are presented. The preliminary...
High mass star formation in the molecular cloud complex NGC 6334: NGC 6334E
We obtained deep broad-band JHKs and narrow-band H2 and Brγ images of the northern part of the giant molecular cloud NGC 6334 containing three distinct centers...
High precision polarimetry with the Advanced Technology Solar Telescope
This paper addresses the issue of calibrating the Advanced Technology Solar Telescope for high-precision polarimetry, in particular of the optical train above...