289 citations · 587 across the 8 of their papers we have counts for
7 papers · 1 filter
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…
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…
Revealing the environs of the remarkable southern hot core G327.3-0.6
F. Wyrowski, K. M. Menten, P. Schilke +3
We present a submm study of the massive hot core G327.3-0.6 that constrains its physical parameters and environment. The APEX telescope was used to image CO and N2H+ emission, to o…
APEX mapping of H3O+ in the Sgr B2 region
F. F. S. van der Tak, ; A. Belloche, P. Schilke +5
The cosmic-ray ionization rate (zeta) of dense molecular clouds is a key parameter for their dynamics and chemistry. Variations of zeta are well established, but it is unclear if t…