5 papers
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…
What Heats the Dense Gas in the Galactic Center?
Zhenyi Yue, Yiping Ao, Xindi Tang +3
Previous studies using p-HCO -- transitions at 218 GHz suggested widespread high-temperature gas exceeding 60 K and even 100 K in the CMZ, with heating mechanisms possi…
Ammonia in the hot core W51-IRS2: Maser line profiles, variability, and saturation
E. Alkhuja, C. Henkel, Y. T. Yan +6
W51-IRS2 is known to be one of the most prolific sources of interstellar ammonia (NH) maser lines. So far, however, many of these inversion lines have rarely been studied. Here…
Shock-induced HCNH+ abundance enhancement in the heart of the starburst galaxy NGC 253 unveiled by ALCHEMI
Y. Gong, C. Henkel, C. T. Bop +15
Understanding the chemistry of molecular clouds is pivotal to elucidate star formation and galaxy evolution. As one of the important molecular ions, HCNH+ plays an important role i…