We report the detection of ammonia masers in the non-metastable (6, 3),(7, 5), and (6, 5)
transitions; the latter being the first unambiguous maser detection of that transition ever …

We present initial results from the K-band Focal Plane Array Examinations of Young STellar
Object Natal Environments survey, a large project on the 100 m Green Bank Telescope …

We report a systemic search for nonmetastable NH 3 masers toward a high-mass star-
forming region Sgr B2 (N) using the Shanghai 65 m Tianma radio telescope with its Ku-band …

Context. NGC 7538 IRS 1− 3 is a high-mass star-forming cluster with several detected dust
cores, infrared sources,(ultra) compact H II regions, molecular outflows, and masers. In such …

The study of the interaction between ionized jets, molecular outflows, and their environments
is critical to understanding high-mass star formation, especially because jets and outflows …

We present the first detection of para-ammonia masers in NGC 7538: multiple epochs of
observation of the 14 NH 3(J, K)=(10, 8) and (9, 8) lines. We detect both thermal absorption …

We report the discovery of the first 14 NH 3 (2, 2) maser, seen in the Sgr B2 Main star-
forming region near the center of the Milky Way, using data from the Very Large Array radio …

We present the first astronomical detection of the 14 NH 3 (J, K)=(10, 6) line: nonthermal
emission at several velocities in the Galactic star-forming region NGC 7538. Using the Very …

We present new maser emission from 14 NH 3 (9, 6) in NGC 7538. Our observations include
the known spectral features near v LSR=− 60 km s− 1 and− 57 km s− 1 and several more …

We present initial results from the K-band focal plane array Examinations of Young STellar
Object Natal Environments (KEYSTONE) survey, a large project on the 100-m Green Bank …