A study at optical, infrared and mmwavelengths has been carried out of the Sa 187 cloud in the southern constellation of Norma, which harbors the HH 56 and 57 flows. CCD images of HH 56 show that it has a fine bow shock morphology. Along the line defined by HH 56 and its energy source Re 13 we have found a faint HH object, HH 56N, to the north, and another bow shock, HH 56S, to the south, makin...

Aims. We aim to study the structure, dynamics and physical conditions of Gomez’s Hamburger (IRAS 18059-3211; GoHam). We confirm that GoHam essentially consists of a flaring disk in keplerian rotation around a young, probably pre-MS star. Methods. We present high resolution SMA maps of 12CO J=2−1, 13CO J=2−1, 12CO J=3−2, and C17O J=3−2, as well as data on 12CO J=6−5 and the continuum flux at the...

Cemented carbide parts have been manufactured from WC-12Co granules by “Solvent on Granules 3D-Printing” and compared with reference produced conventional press sintering. SG-3DP consists in growing a green part layer-by-layer selective solvent jetting powder-polymer granule beds. Both 3D printed uniaxially pressed compacts consolidated thermal debinding liquid phase Further densification has a...

13CO NMR chemical shifts and 12CO infrared stretching frequencies have been measured for cytochrome P-450cam-CO in the presence of D-camphor and of various camphor analogues. A linear correlation between both parameters delta (13C) and v(CO) was found indicating that the steric and electrostatic interactions acting on the CO ligand are influenced by the substrate. It has been proved that P-450 ...

Aims. We measure the mass and kinematics of the massive molecular torus in the planetary nebula NGC 6302. The nebula is the proto-typical butterfly nebula. The origin of the wing-like morphology is disputed: determining the mass-loss history of the confining torus is an important step in understanding the formation of this structure. Methods. We performed submillimeter observations with JCMT an...

Aims. Guided by the duality of turbulence (random versus coherent motions), we seek coherent structures in the turbulent velocity field of molecular clouds, anticipating their importance in cloud evolution. Methods. We analyse a large map (40’ by 20’) obtained with the HERA multibeam receiver (IRAM-30m telescope) in a high latitude cloud of the Polaris Flare at an unprecedented spatial (11) and...

Context. We investigate non-Zeeman circular polarization and linear polarization levels of up to 1% of 12CO spectral line emission detected in a shocked molecular clump around the supernova remnant (SNR) IC 443, with the goal of understanding the magnetic field structure in this source. Aims. We examine our polarization results to confirm that the circular polarization signal in CO lines is cau...