157 citations · 348 across the 15 of their papers we have counts for
16 papers
ALOHA IRDCs Molecular Line Follow-up: I. Gas properties and kinematics
Jinjin Xie, Yaoting Yan, Zhiyuan Ren +109
Infrared Dark Clouds are ideal sites for investigating the initial conditions of massive star and cluster formation. The A Lei Of the Habitat and Assembly of Infrared Dark Clouds (…
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…
Oxygen isotopes reveal low-mass star dominance in the Small Magellanic Cloud
Yan Gong, Zhi-yu Zhang, Christian Henkel +9
Oxygen isotope abundances and their ratios are fingerprints of stellar evolution and therefore provide a powerful tool in tracing the enrichment history of galaxies. However, their…
Evidence for Core-Core Collision in Barnard 68
Dalei Li, Christian Henkel, Alexander Kraus +10
The prestellar core Barnard 68 (B68) is a prototypical source to study the initial conditions and chemical processes of star formation. A previous numerical simulation suggested th…
Network of velocity-coherent filaments formed by supersonic turbulence in a very-high-velocity HI cloud
Xunchuan Liu, Tie Liu, Pak-Shing Li +17
The warm neutral medium (WNM) was thought to be subsonically/transonically turbulent, and it lacks a network of intertwined filaments that are commonly seen in both molecular cloud…
NH3 (1,1) hyperfine intensity anomalies in infall sources
Gang Wu, Christian Henkel, Dongdong Zhou +3
Identifying infall motions is crucial for our understanding of accretion processes in regions of star formation. The NH3 (1,1) hyperfine intensity anomaly (HIA) has been proposed t…
First detection of CF in the Large Magellanic Cloud
Yan Gong, Karl M. Menten, Arshia M. Jacob +2
CF has been established as a valuable diagnostic tool for investigating photo-dissociation regions (PDRs) and fluorine abundances in the Milky Way. However, its role in extra…
Ammonia Observations of Planck Cold Cores
Dilda Berdikhan., Jarken Esimbek., Christian Henkel. +11
Single-pointing observations of NH (1,1) and (2,2) were conducted towards 672 Planck Early Release Cold Cores (ECCs) using the Nanshan 26-m radio telescope. Out of these source…
The first Ka-band (26.1-35 GHz) blind line survey towards Orion KL
Xunchuan Liu, Tie Liu, Zhiqiang Shen +30
We conducted a Ka-band (26.1--35 GHz) line survey towards Orion KL using the TianMa 65-m Radio Telescope (TMRT). It is the first blind line survey in the Ka band, and achieves a se…
Infall Motions in the Hot Core Associated with Hypercompact HII Region G345.0061+01.794 B
Toktarkhan Komesh, Guido Garay, Christian Henkel +13
We report high angular resolution observations, made with the Atacama Large Millimeter Array in band 6, of high excitation molecular lines of and and of the…
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…
High-mass star-forming cloud G0.38+0.04 in the Galactic Center Dust Ridge contains H2CO and SiO masers
Adam Ginsburg, Andrew Walsh, Christian Henkel +15
We have discovered a new HCO (formaldehyde) 4.82966 GHz maser in Galactic Center Cloud C, G0.38+0.04. At the time of acceptance, this is the eighth region con…
Molecular line emission in NGC1068 imaged with ALMA: II. The chemistry of the dense molecular gas
S. Viti, S. García-Burillo, A. Fuente +19
We present a detailed analysis of ALMA Bands 7 and 9 data of CO, HCO+, HCN and CS, augmented with Plateau de Bure Interferometer (PdBI) data of the ~ 200 pc circumnuclear disk (CND…
A search for varying fundamental constants using Hz-level frequency measurements of cold CH molecules
S. Truppe, R. J. Hendricks, S. K. Tokunaga +5
Many modern theories predict that the fundamental constants depend on time, position, or the local density of matter. We develop a spectroscopic method for pulsed beams of cold mol…
Discrete Source Survey of 6 GHz OH emission from PNe & pPNe and first 6 GHz images of K 3-35
J. -F. Desmurs, A. Baudry, P. Sivagnanam +3
The aim of this study is to investigate the physical properties of molecular envelopes of planetary nebulae in their earliest stages of evolution. Using the 100m telescope at Effel…
Ammonia as a Tracer of Fundamental Constants
C. Henkel, K. M. Menten, M. T. Murphy +5
Observing inversion lines of ammonia (NH3), complemented by rotational lines of NH3 and other molecular species, provides stringent constraints on potential variations of the proto…