11 citations · 35 across the 13 of their papers we have counts for
13 papers
Measurement of Cosmic-Ray Density in the Spiral Arms toward Galactic Anticenter
Jia-hao Liu, Bing Liu, Rui-zhi Yang
Using nearly 17 years of Fermi-LAT data, we analyzed the diffuse gamma-ray emission associated with different spiral arms of the Milky Way in the ranges to $145^\ci…
Star Formation Drives Production of Low Energy Cosmic Rays
Ningyu Tang, Jiahao Liu, Di Li +18
For over a century, the origin of low-energy cosmic rays (LECRs), the dominant heaters and ionizers of dense interstellar gas, remains elusive owing to solar modulation and uncerta…
Nuclear de-excitation line emissions from giant molecular clouds
Zhaodong Shi, Bing Liu, Rui-zhi Yang
Understanding how cosmic rays (CRs) propagate within the giant molecular clouds (GMCs) is critical for studying the dynamics and chemical processes inside the clouds. The flux of l…
Low-Energy Cosmic Rays and Associated MeV Gamma-Ray Emissions in the Protoplanetary System
Xulei Sun, Shuying Zheng, Zhaodong Shi +2
Low-energy cosmic rays (LECRs) play a crucial role in the formation of planetary systems, and detecting and reconstructing the properties of early LECRs is essential for understand…
Constraining the low-energy cosmic ray flux in the central molecular zone from MeV nuclear deexcitation line observations
Bing Liu, Ruizhi Yang
Low-energy cosmic rays (LECRs) dominate the ionization in dense regions of molecular clouds in which other ionizers such as UV or X-ray photons are effectively shielded. Thus it wa…
Precise measurement of pion-bump structure using future MeV gamma-ray detectors
Jiahao Liu, Bing Liu, Ruizhi Yang
The pion-bump structure in the gamma-ray spectrum is a direct proof for the hadronic origin of the gamma rays, and thus the decisive evidence for the acceleration of hadronic cosmi…
Detection of extended gamma-ray emission in the vicinity of Cl Danks 1 and 2
Jiahao Liu, Bing Liu, Ruizhi Yang
We report the detection of high-energy gamma-ray emission towards the G305 star-forming region. Using almost 15 years of observation data from {\sl Fermi} Large Area Telescope, we…
Limits on the Primordial Black Holes Dark Matter with future MeV detectors
Zhen Xie, Bing Liu, Jiahao Liu +2
Primordial black holes (PBHs) are a compelling candidate for Dark Matter (DM). There remain significant parameter spaces to be explored despite current astrophysical observations h…
Optimization of performance of the KM2A full array using the Crab Nebula
LHAASO collaboration
The full array of the Large High Altitude Air Shower Observatory (LHAASO) has been in operation since July 2021. For its kilometer-square array (KM2A), we have optimized the select…
Diffuse gamma-ray emission around the Rosette Nebula
Jiahao Liu, Bing Liu, Ruizhi Yang
The Rosette Nebula is a young stellar cluster and molecular cloud complex, located at the edge of the southern shell of a middle-aged SNR Monoceros Loop (G205.5+0.5). We revisited…
Flux Variations of Cosmic Ray Air Showers Detected by LHAASO-KM2A During a Thunderstorm on 10 June 2021
LHAASO Collaboration, F. Aharonian, Q. An +268
The Large High Altitude Air Shower Observatory (LHAASO) has three sub-arrays, KM2A, WCDA and WFCTA. The flux variations of cosmic ray air showers were studied by analyzing the KM2A…
A hard spectrum diffuse gamma-ray component associated with HII gas in the Galactic plane
Bing Liu, Rui-zhi Yang
We analyzed 12-year Fermi Large Area Telescope gamma-ray data in the inner Galaxy centered at (l=30, b=0) and (l=330, b=0). We found signifi…
The low cosmic-ray density in Polaris Flare
Zhi-wei Cui, Rui-zhi Yang, Bing Liu
We reported the gamma-ray observation towards the giant molecular cloud Polaris Flare. Together with the dust column density map, we derived the cosmic ray density and spectrum in…