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A survey of radio emission from galactic OB stars
Radio continuum observations of 88 O-type and early B-type stars are examined. Results are presented for a subset of these stars which forms a distance-limited sample of all OB stars within 2.5 kpc
The binary system MWC 349.
The ionized zone surrounding MWC 349 has been resolved using the VLA. On the basis of a radio continuum map, it is concluded that there is a physical interaction between the two stellar components of
OBSERVATIONAL CONSTRAINTS ON SUBMILLIMETER DUST OPACITY
Infrared extinction maps and submillimeter dust continuum maps are powerful probes of the density structure in the envelope of star-forming cores. We make a direct comparison between infrared and
Orion B (NGC 2024). I: VLA and IR observations of the H II region
Les observations du continuum et de la raie d'absorption OH a une frequence de 1667 MHz sont presentees pour la region H II compacte et le nuage moleculaire associe Orion B. Les cartes du continuum
Revealing the Photodissociation Region: HST/NICMOS Imaging of NGC 7027
We report results from a Hubble Space Telescope (HST) and Near-Infrared Camera and Multiobject Spectrometer (NICMOS) program to study the distribution of hot neutral (molecular hydrogen) and ionized
The Extended Environment of M17: A Star Formation History
M17 is one of the youngest and most massive nearby star-formation regions in the Galaxy. It features a bright H II region erupting as a blister from the side of a giant molecular cloud (GMC).
CO J = 2-1 and 4-3 Observations of Proto-planetary Nebulae: Time-variable Mass Loss
Observations made with the Heinrich Hertz Telescope of CO millimeter and submillimeter emission toward a sample of 22 proto-planetary nebula (PPN) candidates resulted in detections of 12 sources in
The abundance of HCN in circumstellar envelopes of AGB stars of different chemical type
Aims. A multi-transition survey of HCN (sub-) millimeter line emission from a large sample of asymptotic giant branch (AGB) stars of different chemical type is presented. The data are analysed and
The Discovery of Nonthermal Radio Emission from Magnetic Bp--Ap Stars
In a VLA survey of chemically peculiar B- and A-type stars with strong magnetic fields, five of the 34 stars observed have been identified as 6 cm continuum sources. Three of the detections are
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