activity
20052023
most citedA narrow line Seyfert 1--blazar composite nucleus in 2MASX J0324+3410

136 citations · 473 across the 21 of their papers we have counts for

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Showing astro-ph.GAShow all

5 papers · 1 filter

astro-ph.GA2023

BayeSED-GALAXIES I. Performance test for simultaneous photometric redshift and stellar population parameter estimation of galaxies in the CSST wide-field multiband imaging survey

Yunkun Han, Lulu Fan, XianZhong Zheng +2

The forthcoming CSST wide-field multiband imaging survey will produce seven-band photometric spectral energy distributions (SEDs) for billions of galaxies. The effective extraction…

astro-ph.GA2019★ 14 cited

Quasi-simultaneous Spectroscopic and Multi-band Photometric Observations of Blazar S5 0716+714 during 2018-2019

Hai-Cheng. Feng, H. T. Liu, J. M. Bai +4

In order to study short timescale optical variability of -ray blazar S5 0716+714, quasi-simultaneous spectroscopic and multi-band photometric observations were performed from 20…

astro-ph.GA2019★ 20 cited

Search for Intra-day Optical Variability in -ray--loud Blazars S5 0716+714 and 3C 273

H. T. Liu, Hai Cheng Feng, Y. X. Xin +3

We present the photometric observations of blazars S5 0716+714 and 3C 273 with high temporal resolution (30--60s) in the or bands. The observations were performed with a 1.…

astro-ph.GA2017★ 14 cited

Search for intra-day optical variability in Mrk 501

Hai-Cheng Feng, H. T. Liu, X. L. Fan +5

We present our observations of the optical intra-day variability (IDV) in -ray BL Lac object Mrk 501. The observations were run with the 1.02 m and 2.4 m optical telescopes at Y…

astro-ph.GA2015★ 14 cited

Constraints on black hole massess with timescales of variations in blazars

H. T. Liu, J. M. Bai

In this paper, we investigated the issue of black hole masses and minimum timescales of jet emission for blazars. We proposed a sophisticated model that sets an upper limit to the…