Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Liao, Neng-Hui"'
Superluminous supernovae (SLSNe) are a new class of transients with luminosities $\sim10 -100$ times larger than the usual core-collapse supernovae (SNe). Their origin is still unclear and one widely discussed scenario involves a millisecond magnetar
Externí odkaz:
http://arxiv.org/abs/2407.05968
Autor:
Lei, Hai, Zhang, Ying-Kang, Jiang, Xiong, Kiehlmann, Sebastian, Readhead, Anthony C. S., Chen, Liang, Liao, Neng-Hui, An, Tao
High-redshift ($z >3$) $\gamma$-ray blazars are rare, but they are crucial for our understanding of jet evolution, $\gamma$-ray production and propagation, and the growth of supermassive black holes in the early universe. A new analysis of Fermi-LAT
Externí odkaz:
http://arxiv.org/abs/2406.03658
We report on multiwavelength studies of a blazar NVSS J171822+423948, which is identified as the low-energy counterpart of 4FGL J1718.5+4237, the unique $\gamma$-ray source known to be cospatial with the IceCube neutrino event IC-201221A. After a 12-
Externí odkaz:
http://arxiv.org/abs/2401.12122
We have collected a catalog of 1095 debris disks with properties and classification (resolved, planet, gas) information. From the catalog, we defined a less biased sample with 612 objects and presented the distributions of their stellar and disk prop
Externí odkaz:
http://arxiv.org/abs/2305.10364
Publikováno v:
A&A 676, A9 (2023)
We report on an identification of a new gamma-ray emitting narrow-line Seyfert 1 galaxy (gamma-NLS1), SDSS J095909.51+460014.3 (z = 0.399), by establishing an association with a gamma-ray source 4FGL 0959.6+4606, although its low-energy counterpart w
Externí odkaz:
http://arxiv.org/abs/2212.04036
Autor:
Liao, Neng-Hui, Sheng, Zhen-Feng, Jiang, Ning, Chang, Yu-Ling, Wang, Yi-Bo, Xu, Dong-Lian, Shu, Xin-Wen, Fan, Yi-Zhong, Wang, Ting-Gui
A radio-emitting tidal disruption event (AT2019dsg) is proposed as a likely counterpart of the IceCube neutrino event IC-191001A. In this work we have revisited the {\it Fermi}-LAT data in the direction of the neutrino and confirmed no signal at the
Externí odkaz:
http://arxiv.org/abs/2202.03788
Autor:
Jin, Zhi-Ping, Zhou, Hao, Covino, Stefano, Liao, Neng-Hui, Li, Xiang, Lei, Lei, D'Avanzo, Paolo, Fan, Yi-Zhong, Wei, Da-Ming
GRB 060505 was the first well-known nearby (at redshift 0.089) "hybrid" gamma-ray burst that has a duration longer than 2 seconds but without the association of a supernova down to very stringent limits. The prompt $\gamma-$ray flash lasting $\sim 4$
Externí odkaz:
http://arxiv.org/abs/2109.07694
High-redshift blazars are valuable tools to study the early Universe. So far only a handful of $\gamma$-ray blazars have been found at redshifts above 3. $\gamma$-ray signals are detected in the direction of PMN J2219-2719 ($z=3.63$) and PMN J2321-08
Externí odkaz:
http://arxiv.org/abs/2006.10470
GB 1508+5714 is a high-redshift blazar ($z$ = 4.3) and a spectrally soft $\gamma$-ray source has been detected in its direction. By analyzing 11.4-yr {\it Fermi}-LAT data, significant long-term variability of the $\gamma$-ray source is confirmed. Mor
Externí odkaz:
http://arxiv.org/abs/2005.04844
Circinus galaxy is a nearby composite starburst/AGN system. In this work we re-analyze the GeV emission from Circinus with 10 years of {\it Fermi}-LAT Pass 8 data. In the energy range of 1-500 GeV, the spectrum can be well fitted by a power-law model
Externí odkaz:
http://arxiv.org/abs/1905.04723