Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Jun-Xian Wang"'
Publikováno v:
Journal of the National Cancer Center, Vol 3, Iss 4, Pp 273-278 (2023)
Cellular senescence is characterized by a generally irreversible cell cycle arrest and the secretion of bioactive factors known as the senescence-associated secretory phenotype (SASP). In an oncogenic context, senescence is considered a tumor suppres
Externí odkaz:
https://doaj.org/article/2f69ba366d204514b5d2e852a4e0053b
Publikováno v:
Animal Nutrition, Vol 14, Iss , Pp 303-314 (2023)
Citrate is an essential substrate for energy metabolism that plays critical roles in regulating glucose and lipid metabolic homeostasis. However, the action of citrate in regulating nutrient metabolism in fish remains poorly understood. Here, we inve
Externí odkaz:
https://doaj.org/article/37730a63b3da4d0f82f299ef83660bdd
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 1, p L9 (2024)
Stellar black holes (sBHs) are widely believed to exist in the accretion disks of active galactic nuclei (AGNs). Previous studies often focus on the transient emission produced by embedded sBHs. Here, we explore the possible observational consequence
Externí odkaz:
https://doaj.org/article/a68bd4bab5f048c0a549cf7b958d3679
Autor:
Zhen-Bo Su, Zhen-Yi Cai, Jun-Xian Wang, Tinggui Wang, Yongquan Xue, Min-Xuan Cai, Lulu Fan, Hengxiao Guo, Zhicheng He, Zizhao He, Xu-Fan Hu, Ji-an Jiang, Ning Jiang, Wen-Yong Kang, Lei Lei, Guilin Liu, Teng Liu, Zhengyan Liu, Zhenfeng Sheng, Mouyuan Sun, Wen Zhao
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 2, p 155 (2024)
The interband lags among the optical broad-band continua of active galactic nuclei (AGNs) have been intensively explored over the past decade. However, the nature of the lags remains under debate. Here, utilizing two distinct scenarios for AGN variab
Externí odkaz:
https://doaj.org/article/94597f0e0d7247ccb75dcf5b18eb2a0b
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 31 (2024)
We present the timing analysis of 10 archived XMM-Newton observations with an exposure of >40 ks of Markarian 421. Mrk 421 is the brightest high-frequency-peaked BL Lac object emitting in X-rays produced by electrons accelerated in the innermost regi
Externí odkaz:
https://doaj.org/article/e90c8a008d1b4165acb9b08f7822c7f3
Autor:
Wen-Yong Kang, Jun-Xian Wang, Zhen-Yi Cai, Hao-Chen Wang, Wen-Ke Ren, Mai Liao, Feng Yuan, Andrzej Zdziarski, Xinwu Cao
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 60 (2024)
Quasars are generally divided into jetted radio-loud and nonjetted radio-quiet ones, but why only 10% of quasars are radio-loud has been puzzling for decades. Other than jet-induced phenomena, black hole mass, or Eddington ratio, a prominent differen
Externí odkaz:
https://doaj.org/article/6d6bcd4113fe4e549e066e9ebc5862df
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 2, p 78 (2024)
The variability of active galactic nuclei (AGNs) has long been servicing as an essential avenue of exploring the accretion physics of a black hole (BH). There are two commonly used methods for analyzing AGN variability. First, the AGN variability, ch
Externí odkaz:
https://doaj.org/article/113a61819c424904b7a18c305be18d7c
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 5 (2024)
The variability of active galactic nuclei (AGNs) is ubiquitous, but has not yet been understood. Measuring the optical variation properties of AGNs, such as the variation timescale and amplitude, and then correlating them with their fundamental physi
Externí odkaz:
https://doaj.org/article/5f9eeccd6fe4485f8e3376bba054498e
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 25 (2024)
Magnetohydrodynamic turbulence can drive significant temperature fluctuations in the accretion disk of an active galactic nucleus (AGN). As a result, the disk can be highly inhomogeneous and has a half-light radius larger than the static Shakura and
Externí odkaz:
https://doaj.org/article/823d9a1c191c4407b2a7b012b2603153
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 8 (2024)
The UV/optical light curves of Active Galactic Nuclei (AGNs) are commonly described by the Damped Random Walk (DRW) model. However, the physical interpretation of the damping timescale, a key parameter in the DRW model, remains unclear. Particularly,
Externí odkaz:
https://doaj.org/article/ed32babc4c3340a787876639b12637dc