activity
20232026
most citedThe JCMT Transient Survey: Six-Year Summary of 450/850\,m Protostellar Variability and Calibration Pipeline Version 2.0

2 citations · 2 across the 6 of their papers we have counts for

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astro-ph.GA2026

First Results from JACKS: A VLA Ammonia View of Gas Heating and Star-forming Cores in the Central Molecular Zone

Xu Zhang, Xing Lu, Elisabeth A. C. Mills +7

The Central Molecular Zone (CMZ) combines warm molecular gas, strong turbulence, and a star-formation rate below that expected from its dense-gas reservoir. The JVLA Ammonia C-conf…

astro-ph.GA2026

X-ray variability of SDSS J000532.84+200717.4: from a normal state to an X-weak state

Xiaohui Yang, Yanli Ai, Liming Dou +8

We present a multi-epoch study of the extreme X-ray variability of the type~1 quasar SDSS~J000532.84+200717.4 using archival observations from \textit{XMM-Newton}, \textit{Swift}/X…

astro-ph.GA2025

Submillimeter and Mid-Infrared Variability of Young Stellar Objects in the M17 HII Region

Zhiwei Chen, Doug Johnstone, Carlos Contreras Peña +12

We conducted a comprehensive analysis of young stellar object (YSO) variability at submillimeter and mid-infrared (mid-IR) wavelengths for the M\,17 \ion{H}{2} region, using 3.5 ye…

astro-ph.GA2024

Submillimeter and Mid-Infrared Variability of Young Stellar Objects in the M17SWex Intermediate-Mass Star-Forming Region

Geumsook Park, Doug Johnstone, Carlos Contreras Pena +12

We present a comprehensive analysis of young stellar object (YSO) variability within the M17 Southwest Extension (M17 SWex), using 3.5 years of monitoring data from the JCMT Transi…

astro-ph.GA2024

Surveys of clumps, cores, and condensations in Cygnus X: Temperature and nonthermal velocity dispersion revealed by VLA NH3 observations

Xu Zhang, Keping Qiu, Qizhou Zhang +6

The physical properties, evolution, and fragmentation of massive dense cores (MDCs, 0.1 pc) are fundamental pieces in our understanding of high-mass star formation. We aim t…

astro-ph.GA2023

Surveys of clumps, cores, and condensations in Cygnus-X:Searching for circumstellar disks

Xing Pan, Keping Qiu, Kai Yang +2

To investigate whether disk-mediated accretion is the primary mechanism in high-mass star formation, we have established a survey of a large sample of massive dense cores within a…