69 citations · 695 across the 51 of their papers we have counts for
44 papers · 1 filter
Unveiling the enigma of the Nakashima-Deguchi object (IRAS 19312+1950): a candidate Orion KL analog
Y. Gong, K. M. Menten, T. Kamiński +5
The Nakashima-Deguchi object (NDO; aka IRAS 19312+1950) has been recognized as an enigmatic object, exhibiting characteristics of both an evolved star and a star-forming region. Ho…
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…
Massive star formation at the Galactic crossroads: Insights from G358.69+0.03 in the Galactic center
A. Cheema, V. S. Veena, K. M. Menten +7
We investigated the high-mass star formation activity in a subregion of the Sagittarius E star-forming complex, centered at (l,b) = (358.69 deg, 0.03 deg), where infrared and radio…
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…
Exploring the interplay between molecular and ionized gas in HII regions
S. Khan, A. M. Jacob, M. R. Rugel +8
We aim to constrain the kinetic temperature and H volume density of massive star-forming clumps associated with HII regions using multiple para-HCO transitions. In addition…
A global view on star formation: The GLOSTAR Galactic plane survey XII. Effelsberg's continuum view and data release
Y. Gong, W. Reich, M. R. Rugel +24
Extended radio continuum emission and its linear polarization play a key role in probing large-scale structures of synchrotron and free-free emission in the Milky Way. Despite the…
A targeted radio survey of infrared-selected bow shock candidates
M. Moutzouri, J. Mackey, N. Castro +8
Bow shocks around massive stars have primarily been detected in IR emission, but radio detections are becoming more frequent with the commissioning of sensitive and large field-of-…
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…
Dynamic Massive Star Formation: Radio Flux Variability in UCHII Regions
A. Y. Yang, M. A. Thompson, J. S. Urquhart +7
Context: Theoretical models of early accretion during the formation process of massive stars have predicted that HII regions exhibit radio variability on timescales of decades. How…
A global view on star formation: The GLOSTAR Galactic plane survey. XI. Radio source catalog IV: , and
S. -N. X. Medina, S. A. Dzib, J. S. Urquhart +17
The GLOSTAR survey studies star formation with the VLA and the Effelsberg 100m telescope in the Galactic plane (-2d<l<60d; |b|<1d) and the Cygnus X region with unprecedented sensit…
Hyperfine structure of the methanol molecule as traced by Class I methanol masers
I. I. Agafonova, O. S. Bayandina, Y. Gong +9
We present results on simultaneous observations of Class~I methanol masers at 25, 36, and 44 GHz towards 22 Galactic targets carried out with the Effelsberg 100-m telescope. The st…
A global view on star formation: The GLOSTAR Galactic plane survey X. Galactic HII region catalog using radio recombination lines
S. Khan, M. R. Rugel, A. Brunthaler +17
Studies of Galactic HII regions are of crucial importance for studying star formation and the evolution of the interstellar medium. Gaining an insight into their physical character…
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$_…
Discovery of widespread non-metastable ammonia masers in the Milky Way
Y. T. Yan, C. Henkel, K. M. Menten +8
We present the results of a search for ammonia maser emission in 119 Galactic high-mass star-forming regions (HMSFRs) known to host 22 GHz HO maser emission. Our survey has led…
A global view on star formation: The GLOSTAR Galactic plane survey. IX. Radio Source Catalog III: 2<l<28, 36<l<40, 56<l<60 and |b|<1, VLA B-configuration
A. Y. Yang, S. A. Dzib, J. S. Urquhart +20
As part of the GLOSTAR (GLObal view of STAR formation in the Milky Way) survey, we present the high-resolution continuum source catalog for the regions (l = 2-28, 36-40, 56-60, &|b…
Sulfur isotope ratios in the Large Magellanic Cloud
Y. Gong, C. Henkel, K. M. Menten +11
Sulfur isotope ratios have emerged as a promising tool for tracing stellar nucleosynthesis, quantifying stellar populations, and investigating the chemical evolution of galaxies. W…
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…
A global view on star formation: The GLOSTAR Galactic plane survey VIII. Formaldehyde absorption in Cygnus~X
Y. Gong, G. N. Ortiz-León, M. R. Rugel +21
Cygnus X is one of the closest and most active high-mass star-forming regions in our Galaxy, making it one of the best laboratories for studying massive star formation. As part of…
High-resolution APEX/LAsMA CO and CO (3-2) observation of the G333 giant molecular cloud complex : I. Evidence for gravitational acceleration in hub-filament systems
J. W. Zhou, F. Wyrowski, S. Neupane +6
Hub-filament systems are suggested to be the birth cradles of high-mass stars and clusters. We apply the FILFINDER algorithm to the integrated intensity maps of the 13CO (3-2) line…
ATLASGAL: 3-mm class I methanol masers in high-mass star formation regions
W. Yang, Y. Gong, K. M. Menten +7
We analyzed the 3-mm wavelength spectral line survey of 408 ATLASGAL clumps observed with the IRAM 30m-telescope, focusing on the class I methanol masers with frequencies near 84,…
Direct measurements of carbon and sulfur isotope ratios in the Milky Way
Y. T. Yan, C. Henkel, C. Kobayashi +7
With the IRAM 30 meter telescope, we performed observations of the = 2-1 transitions of CS, CS, CS, CS, CS, CS, and CS a…
A global view on star formation: The GLOSTAR Galactic plane survey. VII. Supernova remnants in the Galactic longitude range
R. Dokara, Y. Gong, W. Reich +19
Context. While over 1000 supernova remnants (SNRs) are estimated to exist in the Milky Way, only less than 400 have been found to date. In the context of this apparent deficiency,…
A global view on star formation: The GLOSTAR Galactic plane survey. VI. Radio Source Catalog II: and , VLA B-configuration
S. A. Dzib, A. Y. Yang, J. S. Urquhart +20
As part of the GLOSTAR survey we have used the VLA in its B-configuration to observe the part of the Galactic plane between longitudes of 28d and 36d and latitudes from -1d to +1d…