7 papers · 1 filter
Detailed Studies of Cloud Cores: Probing the Initial Conditions for Protostellar Collapse
Philippe Andre, Arnaud Belloche, Patrick Hennebelle +1
Improving our understanding of the earliest stages of star formation is crucial to gain insight into the origin of stellar masses, multiple systems, and protoplanetary disks. We di…
The Structure of Cold Molecular Cloud Cores
D. Ward-Thompson, D. J. Nutter, J. M. Kirk +1
A brief summary is presented of our current knowledge of the structure of cold molecular cloud cores that do not contain protostars, sometimes known as starless cores. The most cen…
The Structure of Prestellar Cores as derived from ISO Observations
Aurore Bacmann, Philippe Andre, Derek Ward-Thompson
Observations of dark cloud cores have been carried out in the mid-infrared using ISOCAM and in the far-infrared using ISOPHOT, both aboard the Infrared Space Observatory. The cores…
Observations of YSO Circumstellar Discs
D. Ward-Thompson, P. Andre, O. P. Lay
We present the results of short baseline interferometry observations at submillimetre wavelengths, using a two-element interferometer comprising the JCMT and CSO, of circumstellar…
X-rays and regions of star formation: a combined ROSAT-HRI/near-to-mid IR study of the rho Oph dark cloud
Nicolas Grosso, Thierry Montmerle, Sylvain Bontemps +2
We have obtained two deep exposures of the rho Oph cloud core region with the ROSAT HRI. The improved position accuracy (1"-6") with respect to previous recent X-ray observations (…
From Pre-Stellar Cores to Protostars: The Initial Conditions of Star Formation
Philippe Andre, Derek Ward-Thompson, Mary Barsony
The last decade has witnessed significant advances in our observational understanding of the earliest stages of low-mass star formation. The advent of sensitive receivers on large…