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Thermal Methanol from 33 Clouds at 48 GHz
A search for thermal emission in the 1_0_-0_0_A^+^ methanol line was made at a frequency of 48.4GHz toward many celestial molecular clouds. The line was found in 33 clouds, and... -
Water fountain cand. from H_2_O masers (22.235GHz)
Water fountains (WFs) are thought to be objects in the morphological evolution of the circumstellar envelopes of low- and intermediate-mass evolved stars, transitioning from... -
IRAM 3mm, 2mm & 1.3mm obs. of star-forming regions
We carried out a spectral line survey of CH3OH toward a large sample of 175 high-mass star-forming regions in the 3mm, 2mm, and 1.3mm bands with the Institut de Radioastronomie... -
Statistical study of NEOWISE 6.7GHz methanol masers
We present a statistical study of infrared variability using the Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) database for a sample consisting of 1085... -
HC3N & N2H+ obs. toward 61 ultracompact HII regions
We conducted observations of multiple HC_3_N (J=10-9, 12-11, and 16-15) lines and the N_2_H^+^ (J=1-0) line toward a large sample of 61 ultracompact (UC) HII regions, through... -
Multiple maser transitions from G358.93-0.03 burst
The high-mass young stellar object G358.93-0.03 underwent an accretion burst during the period from 2019 January to June. Given its extraordinary conditions, a number of new... -
VLBA obs. of masers in the Scutum Spiral Arm
As part of the Bar and Spiral Structure Legacy (BeSSeL) Survey, we have used the Very Long Baseline Array (VLBA) to measure 16 trigonometric parallaxes and proper motions of... -
NH_3_ transitions detections toward W51 IRS2
A four-epoch monitoring program spanning ~three months (from 2020-January-8 to April-7) for ammonia, water, and methanol transitions toward the high-mass star-forming region W51... -
12.2GHz methanol maser survey toward 6.7GHz masers
We report a new survey of the 12.2GHz Class II methanol masers toward a sample of 367 sources with the 6.7GHz methanol masers conducted with the Shanghai 65m Tianma Radio... -
18cm OH masers VLA obs. toward 80 SFRs
Class I methanol masers (cIMMs) and 1720MHz OH masers are believed to arise from a common collisional pumping mechanism, and both trace shocked gas regions in supernova remnants... -
Survey of SiO maser emission in oxygen-rich stars
Circumstellar environments of oxygen-rich stars are among the strongest SiO maser emitters. Physical processes such as collisions, infrared pumping, and overlaps favor the... -
A 4-6GHz RRL survey in the Milky Way
We performed a radio recombination line (RRL) survey to construct a high-mass star-forming region (HMSFR) sample in the Milky Way based on the all-sky Wide-Field Infrared Survey... -
44 and 95GHz observations of class I methanol masers
We report a simultaneous 44 and 95GHz class I methanol maser survey toward 144 sources from the 95GHz class I methanol maser catalog. The observations were made with the three... -
6.7GHz methanol masers & RRLs in MSX regions
We report a systematic survey of a 6.7GHz Class II methanol maser toward a sample of 448 sources selected from the Red Midcourse Space Experiment Source catalog. These sample... -
VLA observations of the Central Molecular Zone
We present new observations of the C-band continuum emission and masers to assess high-mass (>8M_{sun}) star formation at early evolutionary phases in the inner 200pc of the... -
The BAaDE SiO maser survey at 86GHz with ALMA
We report on the first 1432 sources observed using the Atacama Large Millimeter/submillimeter Array, from the Bulge Asymmetries and Dynamical Evolution survey, which aims to... -
A 6.7GHz methanol maser survey. II. |b|<2{deg}
We report the results of our systematic survey for Galactic 6.7GHz Class II CH_3_OH maser emission toward a sample of young stellar objects. The survey was conducted with the... -
Accurate OH maser positions. II. The GC.
We present high spatial resolution observations of ground-state OH masers achieved using the Australia Telescope Compact Array (ATCA). These observations were conducted toward... -
Radio Ammonia Mid-plane Survey (RAMPS) pilot survey
The Radio Ammonia Mid-Plane Survey (RAMPS) is a molecular line survey that aims to map a portion of the Galactic midplane in the first quadrant of the Galaxy (l=10{deg}-40{deg},... -
A new 95GHz methanol maser catalog. I.
The Purple Mountain Observatory 13.7m radio telescope has been used to search for 95GHz (8_0_-7_1_A^+^) class I methanol masers toward 1020 Bolocam Galactic Plane Survey (BGPS)...
