activity
20162026
most citedA comparison of the local spiral structure from Gaia DR2 and VLBI maser parallaxes

84 citations · 488 across the 43 of their papers we have counts for

collaborators
Showing astro-ph.GAShow all

40 papers · 1 filter

astro-ph.GA2026

Statistical Properties of Molecular Clouds in the Milky Way: Insights from Three-Isotopologue CO Observations of the MWISP Project

Xin Zhou, Ji Yang, Qing-Zeng Yan +5

We present a comprehensive statistical analysis of molecular cloud (MC) properties using the MWISP survey's 12CO, 13CO, and C18O (J = 1--0) data toward the inner (l = 45--6…

astro-ph.GA2026

A study of the Physical Properties and Star Formation Activity of a Large Sample of Molecular Clouds: I Distances

Juan Mei, Min Fang, Miaomiao Zhang +8

Accurate distances to molecular clouds are crucial for determining their physical properties, understanding star formation, and tracing Galactic spiral structure. A number of 103,5…

astro-ph.GA2026

How is Cold Gas Loaded into Galactic Nuclear Outflows?

Yang Su, Xin Liu, Shiyu Zhang +7

The origin of the multiphase gas within the Fermi/eROSITA bubbles is crucial for understanding Galactic Center (GC) feedback. We use HI4PI data to investigate the kinematics and ph…

astro-ph.GA2025★ 1 cited

The Milky Way Imaging Scroll Painting Survey: Data Release 1

Ji Yang, Qing-Zeng Yan, Yang Su +31

We present the first data release (DR1) of the Milky Way Imaging Scroll Painting (MWISP) survey, a mapping in the J=(1-0) transition lines of 12CO, 13CO, and C18O toward the northe…

astro-ph.GA2025

Investigations of MWISP Clumps: 13CO Clump Source Catalog and Physical Properties

Yu Jiang, Qing-Zeng Yan, Ji Yang +10

We present the first comprehensive catalogs of CO clumps from the Milky Way Imaging Scroll Painting (MWISP) project. By developing an equivalent global detection scheme inte…

astro-ph.GA2025★ 3 cited

CU-JADE: A Method for Traversing Extinction Jumps along the Line of Sight

Shiyu Zhang, Yang Su, Xuepeng Chen +8

Although interstellar dust extinction serves as a powerful distance estimator, the solar system's location within the Galactic plane complicates distance determinations, especially…

astro-ph.GA2025★ 4 cited

Gas Transfer Between the Inner 3-kpc Disk and the Galactic Central Molecular Zone

Yang Su, Shiyu Zhang, Yan Sun +10

We uncovered a more tilted molecular gas structure with highly negative velocities located near the dust lane. Our observations also show that the approaching gas flows from the ov…

astro-ph.GA2024

A new view of the Spiral Structure of the Northern Outer Milky Way in Carbon Monoxide

Yan Sun, Ji Yang, Shaobo Zhang +12

Based on 32162 molecular clouds from the Milky Way Imaging Scroll Painting project, we obtain new face-on molecular gas maps of the northern outer Galaxy. The total molecular gas s…

astro-ph.GA2024★ 10 cited

Revealing Gas Inflows towards the Galactic Central Molecular Zone

Yang Su, Shiyu Zhang, Yan Sun +7

We study the gas inflows towards the Galactic Central Molecular Zone (CMZ) based on the gas morphological and kinematic features from the MWISP in the region of l=1.2 deg--19.0 deg…

astro-ph.GA2024★ 3 cited

On the Flux-Intensity Relation of Molecular Clouds

Qing-Zeng Yan, Ji Yang, Yang Su +7

In this work, we report a study on the relationship between flux and intensity for molecular clouds. Our analysis is established on high-quality CO images from the Milky Way Imagin…

astro-ph.GA2024

The Multilayer Nature of Molecular Gas toward the Cygnus Region

Shiyu Zhang, Yang Su, Xuepeng Chen +12

We study the physical properties and 3D distribution of molecular clouds (MCs) toward the Cygnus region using the MWISP CO survey and Gaia DR3 data. Based on Gaussian decomposition…

astro-ph.GA2024

Relative velocities between CO structures within CO Molecular clouds

Lixia Yuan, Ji Yang, Xuepeng Chen +10

Velocity fields of molecular clouds (MCs) can provide crucial information on the merger and split between clouds, as well as their internal kinematics and maintenance, energy injec…

astro-ph.GA2024

Magnetically Aligned Striations in the L914 Filamentary Cloud

Li Sun, Xuepeng Chen, Min Fang +6

We present CO () multi-line observations toward the L914 dark cloud in the vicinity of the Cygnus X region, using the 13.7 m millimeter telescope of the Purple Mountain Ob…

astro-ph.GA2024

Distribution and Properties of Molecular Gas Toward the Monoceros OB1 Region

Zi Zhuang, Yang Su, Shiyu Zhang +9

We perform a comprehensive CO study toward the Monoceros OB1 (Mon OB1) region based on the MWISP survey at an angular resolution of about . The high-sensitivity data, togethe…

astro-ph.GA2023

Understanding the Kinetic Energy deposition within Molecular Clouds

Lixia Yuan, Ji Yang, Fujun Du +8

According to the structures traced by CO spectral lines within the CO molecular clouds (MCs), we investigate the contributions of their internal gas motions and relat…

astro-ph.GA2023

A Systematic Study of Associations between Supernova Remnants and Molecular Clouds

Xin Zhou, Yang Su, Ji Yang +12

We universally search for evidence of kinematic and spatial correlation of supernova remnant (SNR) and molecular cloud (MC) associations for nearly all SNRs in the coverage of the…

astro-ph.GA2023

The molecular clouds in a section of the third Galactic quadrant: observational properties and chemical abundance ratio between CO and its isotopologues

Chen Wang, Haoran Feng, Ji Yang +6

We compare the observational properties between CO, CO, and CO and summarize the observational parameters based on 7069 clouds sample from the Milky Way Imagin…

astro-ph.GA2023★ 9 cited

Distributions and Physical Properties of Molecular Clouds in the Third Galactic Quadrant: = [219.75, 229.75] and = [-5.25, 5.25]

Yiwei Dong, Yan Sun, Ye Xu +11

We present the results of an unbiased CO/CO/CO ( = 1-0) survey in a portion of the third Galactic quadrant (TGQ): = [219.75, 229.75] and = […

astro-ph.GA2023★ 7 cited

On the Spatial Distribution of CO Structures within CO Molecular Clouds

Lixia Yuan, Ji Yang, Fujun Du +8

We look into the 2851 CO molecular clouds harboring CO structures to reveal the distribution of the projected angular separations and radial velocity separations betw…

astro-ph.GA2022★ 8 cited

The Cassiopeia Filament: A Blown Spur of the Local Arm

Xuepeng Chen, Li Sun, Jiancheng Feng +12

We present wide-field and high-sensitivity CO(1-0) molecular line observations toward the Cassiopeia region, using the 13.7m millimeter telescope of the Purple Mountain Observatory…

astro-ph.GA2022

CO(J = 1-0) Observations toward the Filamentary Cloud in the Galactic Region of and

Weihua Guo, Xuepeng Chen, Jiancheng Feng +11

We present observations of =1-0 transition lines of , , and towards the Galactic region of $153.60^{\cir…

astro-ph.GA2022★ 11 cited

Molecular Gas Structures traced by CO Emission in the 18,190 CO Molecular Clouds from the MWISP Survey

Lixia Yuan, Ji Yang, Fujun Du +7

After the morphological classification of the 18,190 CO molecular clouds, we further investigate the properties of their internal molecular gas structures traced by the $^{1…

astro-ph.GA2022★ 13 cited

Dependence of Molecular Cloud Samples on Angular Resolution, Sensitivity, and Algorithms

Qing-Zeng Yan, Ji Yang, Yang Su +6

In this work, we investigate the observational and algorithmic effects on molecular cloud samples identified from position-position-velocity (PPV) space. By smoothing and cutting o…

astro-ph.GA2022★ 7 cited

CO Emission Delineating the Interface between the Milky Way Nuclear Wind Cavity and the Gaseous Disk

Yang Su, Shiyu Zhang, Ji Yang +8

Based on the MWISP survey, we study high-z CO emission toward the tangent points, in which the distances of the molecular clouds (MCs) are well determined. In the region of l=12-26…