Zobrazeno 1 - 10
of 797
pro vyhledávání: '"LUO, Gan"'
Autor:
Liu, Mengting, Li, Di, Dawson, J. R., Weisberg, Joel M., Hobbs, George, Tang, Ningyu, Luo, Gan, Xu, Duo, Quan, Donghui
We present the first search for pulsed CH maser emission potentially stimulated by PSR J1644$-$4559, conducted using the ultra-wide-bandwidth low-frequency receiver on Murriyang, CSIRO's Parkes Radio Telescope. Observations targeted three CH $\Lambda
Externí odkaz:
http://arxiv.org/abs/2501.01074
Publikováno v:
A&A 690, A372 (2024)
We present a new constraint on the Galactic $^{12}$C/$^{13}$C gradient with sensitive HCO$^+$ absorption observations against strong continuum sources. The new measurements suffer less from beam dilution, optical depths, and chemical fractionation, a
Externí odkaz:
http://arxiv.org/abs/2409.11821
Publikováno v:
A&A 690, A293 (2024)
The cosmic-ray ionization rate ($\zeta_2$) is one of the key parameters in star formation, since it regulates the chemical and dynamical evolution of molecular clouds by ionizing molecules and determining the coupling between the magnetic field and g
Externí odkaz:
http://arxiv.org/abs/2409.07181
Autor:
Luo, Gan, Li, Di, Zhang, Zhi-yu, Bisbas, Thomas G., Tang, Ningyu, Lin, Lingrui, Sun, Yichen, Zuo, Pei, Zhou, Jing
Publikováno v:
A&A 685, L12 (2024)
The CO-dark molecular gas (DMG), which refers to the molecular gas not traced by CO emission, is crucial for the evolution of the interstellar medium (ISM). While the gas properties of DMG have been widely explored in the Solar neighborhood, whether
Externí odkaz:
http://arxiv.org/abs/2405.02055
Autor:
Bisbas, Thomas G., Zhang, Zhi-Yu, Gjergo, Eda, Zhao, Ying-He, Luo, Gan, Quan, Donghui, Jiang, Xue-Jian, Sun, Yichen, Topkaras, Theodoros, Li, Di, Guo, Ziyi
Astrochemistry has been widely developed as a power tool to probe physical properties of the interstellar medium (ISM) in various conditions of the Milky Way (MW) Galaxy, and in near and distant galaxies. Most current studies conventionally apply lin
Externí odkaz:
http://arxiv.org/abs/2312.03237
Autor:
Zhang, Xian, Yu, Wenfei, Law, Casey, Li, Di, Chatterjee, Shami, Demorest, Paul, Yan, Zhen, Niu, Chenhui, Aggarwal, Kshitij, Anna-Thomas, Reshma, Burke-Spolaor, Sarah, Connor, Liam, Tsai, Chao-wei, Zhu, Weiwei, Luo, Gan
Among more than 800 known fast radio bursts (FRBs), only two, namely FRB 20121102A and FRB 20190520B, are confirmed to be associated with a persistent radio sources (PRS). Here we report evidence of apparent temporal variability in the PRS associated
Externí odkaz:
http://arxiv.org/abs/2307.16355
Autor:
Luo, Gan, Zhang, Zhiyu, Bisbas, Thomas G., Li, Di, Zhou, Ping, Tang, Ningyu, Wang, Junzhi, Zuo, Pei, Yue, Nannan
The cosmic-ray ionization rate (CRIR, $\zeta_2$) is one of the key parameters controlling the formation and destruction of various molecules in molecular clouds. However, the current most commonly used CRIR tracers, such as H$_3^+$, OH$^+$, and H$_2$
Externí odkaz:
http://arxiv.org/abs/2302.12970
Autor:
Luo, Gan, Zhang, Zhi-Yu, Bisbas, Thomas G., Li, Di, Tang, Ningyu, Wang, Junzhi, Zhou, Ping, Zuo, Pei, Yue, Nannan, Zhou, Jing, Lin, Lingrui
Ions (e.g., H$_3^+$, H$_2$O$^+$) have been used extensively to quantify the cosmic-ray ionization rate (CRIR) in diffuse sightlines. However, measurements of CRIR in low-to-intermediate density gas environments are rare, especially when background st
Externí odkaz:
http://arxiv.org/abs/2211.13380
Autor:
Yang, Hou-Zhi, Zhan, Yifei, Liu, Yang, Guo, Miao, Fan, Yonggang, Luo, Gan, Zhao, Ying, Huang, Shaoyuan, Sun, Tianwei, Li, Shan-Shan, Ye, Qing, Jin, Xin
Publikováno v:
In Biomaterials Advances January 2025 166
Autor:
Zhai, Shixian, Jacob, Daniel J., Pendergrass, Drew C., Colombi, Nadia K., Shah, Viral, Yang, Laura Hyesung, Zhang, Qiang, Wang, Shuxiao, Kim, Hwajin, Sun, Yele, Choi, Jin-Soo, Park, Jin-Soo, Luo, Gan, Yu, Fangqun, Woo, Jung-Hun, Kim, Younha, Dibb, Jack E., Lee, Taehyoung, Han, Jin-Seok, Anderson, Bruce E., Li, Ke, Liao, Hong
Coarse particulate matter (PM) is a serious air pollution problem in East Asia. Analysis of air quality network observations in the North China Plain and the Seoul Metropolitan Area shows that it is mainly anthropogenic and has decreased by 21% over
Externí odkaz:
http://arxiv.org/abs/2207.03625