Zobrazeno 1 - 10
of 156
pro vyhledávání: '"Jun-Jie Wei"'
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 142 (2024)
Observations of large amounts of massive galaxies with relatively old populations found at high redshifts are challenging galaxy formation scenarios within the standard cosmology. Precise determinations of the average age of these galaxies would be u
Externí odkaz:
https://doaj.org/article/a10d3bfee03e42c0b088ea715a31e0b4
Autor:
Chong-Yu Gao, Jun-Jie Wei
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 1, p 40 (2024)
The recent discoveries of a remarkable glitch/antiglitch accompanied by fast radio burst (FRB)-like bursts from the Galactic magnetar SGR J1935+2154 have revealed the physical connection between the two. In this work, we study the statistical propert
Externí odkaz:
https://doaj.org/article/55dac7adc5bb402ebbdcdf22b1670f55
Autor:
Jun-Jie Wei
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p 013019 (2023)
X-ray flares are generally believed to be produced by the reactivation of the central engine, and may have the same energy dissipation mechanism as the prompt emission of gamma-ray bursts (GRBs). X-ray flares can therefore provide important clues to
Externí odkaz:
https://doaj.org/article/8b898dbb196e47b1851012118abdbe9f
Publikováno v:
The Astrophysical Journal, Vol 959, Iss 2, p 109 (2023)
Using the gamma-ray flare samples of the Sun and 3C 454.3 observed by the Fermi telescope, we investigate the statistical properties of sizes including fluence (energy), peak flux (luminosity), duration time, and waiting time in this work. We find th
Externí odkaz:
https://doaj.org/article/9fae195670a4495297fa046d47459226
Autor:
Jun-Jie Wei, Fulvio Melia
Publikováno v:
The Astrophysical Journal, Vol 955, Iss 2, p 101 (2023)
We use the dispersion measure (DM) and redshift measurements of 24 localized fast radio bursts (FRBs) to compare cosmological models and investigate the Hubble tension. Setting a flat prior on the DM contribution from the Milky Way’s halo, ${\mathr
Externí odkaz:
https://doaj.org/article/a8bf1450f0be4f998a16629569d2c1af
Autor:
Bao Wang, Jun-Jie Wei
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 1, p 50 (2023)
The dispersion measure (DM)–redshift relation of fast radio bursts (FRBs) has been proposed as a potential new tool for probing the intergalactic medium (IGM) and for studying cosmology. However, poor knowledge of the baryon fraction in the IGM ( f
Externí odkaz:
https://doaj.org/article/031b288bd26a4e2ab7e98dc87ed63ae3
Publikováno v:
Universe, Vol 8, Iss 10, p 519 (2022)
The observed spectral lags of gamma-ray bursts (GRBs) have been widely used to explore possible violations of Lorentz invariance. However, these studies were generally performed by concentrating on the rough time lag of a single highest-energy photon
Externí odkaz:
https://doaj.org/article/0736eaa6e1be4df398b38ddf22b26fb1
Autor:
Ting Xiao, Qiang Zhang, Shumin Zong, Wei-long Zhong, Yuan Qin, Zhun Bi, Shuang Chen, Hui-juan Liu, Jun-jie Wei, Bi-jiao Zhou, Lu-meng Wang, Hong-gang Zhou, Yan-rong Liu, Tao Sun, Cheng Yang
Publikováno v:
Journal of Experimental & Clinical Cancer Research, Vol 37, Iss 1, Pp 1-11 (2018)
Abstract Background Tumor cells transfer into endothelial cells by epithelial–endothelial transition (EET), which is characterized by vasculagenic mimicry (VM) in morphology. VM can change tumor microcirculation, progression, and metastasis. Howeve
Externí odkaz:
https://doaj.org/article/325efe0578c7452292fcddb01459b155
Autor:
Gong-Jun Ji, Jun-Jie Wei, Tingting Liu, Dandan Li, Chunyan Zhu, Fengqiong Yu, Yanghua Tian, Kai Wang, Lei Zhang, Panpan Hu
Publikováno v:
Frontiers in Neuroscience, Vol 13 (2019)
A number of repetitive transcranial magnetic stimulation (rTMS) protocols have been developed for modulating brain function non-invasively. To identify the most powerful one, these protocols have been compared in the context of the motor system. Howe
Externí odkaz:
https://doaj.org/article/73788cd5d5ad4d0cb1a6067d28ddc768
Publikováno v:
Galaxies, Vol 9, Iss 2, p 44 (2021)
Possible violations of Lorentz invariance (LIV) can produce vacuum birefringence, which results in a frequency-dependent rotation of the polarization plane of linearly polarized light from distant sources. In this paper, we try to search for a freque
Externí odkaz:
https://doaj.org/article/8db096bf75404295b407a5aca6c97831