471 citations · 6.5k across the 157 of their papers we have counts for
9 papers · 1 filter
Hot Ammonia around Young O-type Stars. II. JVLA imaging of highly-excited metastable ammonia masers in W51-North
Ciriaco Goddi, Christian Henkel, Qizhou Zhang +2
We have used the JVLA at the 1 cm band to map five highly-excited metastable inversion transitions of ammonia, (J,K)=(6,6), (7,7), (9,9), (10,10), and (13,13), in W51 IRS2 with ~0.…
Follow-up observations toward Planck cold clumps with ground-based radio telescopes
Tie Liu, Yuefang Wu, Diego Mardones +26
The physical and chemical properties of prestellar cores, especially massive ones, are still far from being well understood due to the lack of a large sample. The low dust temperat…
Physical conditions of molecular gas in the Circinus galaxy: Multi-J CO and CI 1-0 observations
Zhi-Yu Zhang, Christian Henkel, Yu Gao +6
We report mapping observations of the CO , , , and transitions and the CI 492 GHz transition toward the central 4040 region of the Circi…
Future mmVLBI Research with ALMA: A European vision
R. P. J. Tilanus, T. P. Krichbaum, J. A. Zensus +165
Very long baseline interferometry at millimetre/submillimetre wavelengths (mmVLBI) offers the highest achievable spatial resolution at any wavelength in astronomy. The anticipated…
From Gas to Stars in Energetic Environments: Dense Gas Clumps in the 30 Doradus Region Within the Large Magellanic Cloud
Crystal N. Anderson, David S. Meier, Jürgen Ott +9
We present parsec scale interferometric maps of HCN(1-0) and HCO(1-0) emission from dense gas in the star-forming region 30 Doradus, obtained using the Australia Telescope Co…
Detection of chloronium and measurement of the 35Cl/37Cl isotopic ratio at z=0.89 toward PKS1830-211
S. Muller, J. H. Black, M. Guelin +11
We report the first extragalactic detection of chloronium (H2Cl+), in the z=0.89 absorber in front of the lensed blazar PKS1830-211. The ion is detected through its 1_11-0_00 line…