Spinning Nanoparticles Impacted by C-shock: Implications for Radio-millimeter Emission from Star-forming Regions

Gamma rays from star-forming regions

Star-forming regions have been tentatively associated with gamma-ray sources since the early days of the COS B satellite. After the Compton Gamma-Ray Observatory, the statistical evidence for such an association has became overwhelming. Recent results from Cherenkov telescopes indicate that some high-energy sources are produced in regions of active star formation like Cygnus OB2 and Westerlund ...

Polarized Light from Star-forming Regions

o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o Studies f p larized radiati n fr m m lecular cl uds and the envir nments f pr t stars are pr viding inf rmati n ab ut the rientati ns and strengths f magnetic fields and the sizes and c mp siti ns f dust grains in these e...

X-ray emission from star-forming galaxies

Survey of intermediate/high-mass star-forming regions at centimeter and millimeter wavelengths

Aims. The goal of this work is to characterize the millimeter and centimeter properties of intermediate/high-mass young stellar objects (YSOs) in order to search for any evolutionary trend. Methods. We carried out observations at 1.2 mm with the IRAM 30 m telescope, and at 3.6 and 1.3 cm with the VLA toward a sample of 11 luminous (> 103 L⊙) IRAS sources classified as high-mass protostellar obj...

Ices in Star-Forming Regions: First Results from VLT-ISAAC

The first results from a VLT-ISAAC program on the infrared spectroscopy of deeply-embedded young stellar objects are presented. The advent of 8-m class telescopes allows high S/N spectra of low-luminosity sources to be obtained. In our first observing run, lowand medium-resolution spectra have been measured toward a dozen objects, mostly in the Vela and Chamaeleon molecular clouds. The spectra ...