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Submillimeter water and ammonia absorption by the peculiar z~0.89 interstellar medium in the gravitational lens of the PKS 1830-211 system
K. M. Menten, R. Guesten, S. Leurini +5
Using the Atacama Pathfinder Experiment (APEX) telescope we have detected the rotational ground-state transitions of ortho-ammonia and ortho-water toward the redshift ~0.89 absorbi…
LABOCA observations of nearby, active galaxies
A. Weiss, A. Kovacs, R. Guesten +4
We present large scale 870 micron maps of the nearby starburst galaxies NGC253, NGC4945 and the nearest giant elliptical radio galaxy Centaurus A (NGC 5128) obtained with the newly…
Sunyaev-Zel'dovich Effect Observations of the Bullet Cluster (1E 0657-56) with APEX-SZ
N. W. Halverson, T. Lanting, P. A. R. Ade +33
We present observations of the Sunyaev-Zel'dovich effect (SZE) in the Bullet cluster (1E 0657--56) using the APEX-SZ instrument at 150 GHz with a resolution of 1 arcmin. The main r…
APEX 1 mm line survey of the Orion Bar
S. Leurini, R. Rolffs, S. Thorwirth +8
Unbiased molecular line surveys are a powerful tool for analyzing the physical and chemical parameters of astronomical objects and are the only means for obtaining a complete view…
The distribution of ND2H in LDN1689N
Maryvonne Gerin, Dariuscz C. Lis, Sabine Philipp +3
Finding tracers of the innermost regions of prestellar cores is important for understanding their chemical and dynamical evolution before the onset of gravitational collapse. While…
Mid- and high-J CO observations towards UCHIIs
F. Wyrowski, S. Heyminck, R. Guesten +1
A study of 12 ultracompact HII regions was conducted to probe the physical conditions and kinematics in the inner envelopes of the molecular clumps harboring them. The APEX telesco…