183 citations · 676 across the 21 of their papers we have counts for
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Kinetic temperature of massive star-forming molecular clumps measured with formaldehyde VI. The photodissociation region M17SW
X. Zhao, X. D. Tang, C. Henkel +20
The kinetic temperature structure of the photodissociation region M17SW was mapped using the IRAM 30 m telescope. This mapping employed the para-H2CO triplet (J(KaKc) = 303-202, 32…
Molecular Clouds at the Edge of the Galaxy II. Physical properties and scaling relations
C. S. Luo, X. D. Tang, C. Henkel +22
The outer Galaxy presents an optimal setting for investigating molecular clouds and star formation in environments with low metallicity. A total of 72 Galactic edge clouds were sur…
Kinetic temperature of massive star-forming molecular clumps measured with formaldehyde V. The massive filament DR21
X. Zhao, X. D. Tang, C. Henkel +18
The kinetic temperature structure of the massive filament DR21 has been mapped using the IRAM 30 m telescope. This mapping employed the para-HCO triplet ( = 3$_…
Protonated hydrogen cyanide as a tracer of pristine molecular gas
Y. Gong, F. J. Du, C. Henkel +11
Protonated hydrogen cyanide, HCNH, plays a fundamental role in astrochemistry because it is an intermediary in gas-phase ion-neutral reactions within cold molecular clouds. H…
Interstellar Nitrogen Isotope Ratios: New NH3 Data from the Galactic Center out to the Perseus Arm
J. L. Chen, J. S. Zhang, C. Henkel +10
Our aim is to measure the interstellar 14N/15N ratio across the Galaxy, to establish a standard data set on interstellar ammonia isotope ratios, and to provide new constraints on t…
Observations of multiple NH transitions in W33
K. Tursun, C. Henkel, J. Esimbek +10
At a distance of 2.4kpc, W33 is an outstanding massive and luminous 10pc sized star forming complex containing quiescent infrared dark clouds as well as highly active infrared brig…
Galactic interstellar sulfur isotopes: A radial SS gradient?
H. Z. Yu, J. S. Zhang, C. Henkel +9
We present observations of CS, CS, CS and CS J=21 lines toward a large sample of massive star forming regions by using th…
A systematic TMRT observational study of Galactic C/C ratios from Formaldehyde
Y. T. Yan, J. S. Zhang, C. Henkel +10
We present observations of the C-band (4.8 GHz) and Ku-band (14.5 GHz) K-doublet lines of HCO and the C-band (4.6 GHz) line of H…
Kinetic temperature of massive star-forming molecular clumps measured with formaldehyde. III. The Orion Molecular Cloud 1
X. D. Tang, C. Henkel, K. M. Menten +10
We mapped the kinetic temperature structure of the Orion molecular cloud 1 with para-H2CO(303-202, 322-221, and 321-220) using the APEX 12m telescope. This is compared with the tem…
Kinetic temperature of massive star forming molecular clumps measured with formaldehyde
X. D. Tang, C. Henkel, K. M. Menten +8
For a general understanding of the physics involved in the star formation process, measurements of physical parameters such as temperature and density are indispensable. The chemic…