New Preprints

456.

The pivotal onset of protostellar collapse: ISO's view and complementary observations
H. Wiesemeyer, R. Güsten, P. Cox, R. Zylka, M.C.H. Wright
1997, in Star Formation with the Infrared Space Observatory ed. Jaão L. Yun, Astron. Soc. of the Pacific Conference Series, San Francisco

457.

Inferring acetylene abundances from C H: The C H /HCN abundance ratio
A. Fuente, J. Cernicharo, A. Omont
1997, Astronomy and Astrophysics

458.

A CO (J = 1 - 0) and (J = 2 - 1) atlas of circumstellar envelopes of AGB and post-AGB stars
R. Neri, C. Kahane, R. Lucas, V. Bujarrabal, C. Loup
1997, Astronomy and Astrophysics

459.

Detection of CO (3 - 2) emission at z= 2.64 from the gravitationally lensed quasar MG 0414+0534
R. Barvainis, D. Alloin, S. Guilloteau, R. Antonucci
1997, Astrophys. Journal

460.

The initial conditions of star formation in the Ophiuchi main cloud: wide-field millimeter continuum mapping
F. Motte, P. André, R. Neri
1997, Astronomy and Astrophysics

461.

The IRAM key project: small-scale structure of pre-star-forming regions: I - Observational results
E. Falgarone, J.-F. Panis, A. Heithausen, M. Pérault, J. Stutzki, J.-L. Puget, F. Bensch
1997, Astronomy and Astrophysics

462.

Millimeter continuum observations of X-ray selected T Tauri stars in Ophiuchus
D. Nürnberger, W. Brandner, H.W. Yorke, H. Zinnecker
1997, Astronomy and Astrophysics