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The Disk Veiling Effect of the Black Hole Low-Mass X-ray Binary A0620-00
Wan-Min Zheng, Qiaoya Wu, Jianfeng Wu +15
The optical light curves of quiescent black hole low-mass X-ray binaries often exhibit significant non-ellipsoidal variabilities, showing the photospheric radiation of the companio…
The HASHTAG project: The First Submillimeter Images of the Andromeda Galaxy from the Ground
Matthew W. L. Smith, Stephen A. Eales, Thomas G. Williams +46
Observing nearby galaxies with submillimeter telescopes on the ground has two major challenges. First, the brightness is significantly reduced at long submillimeter wavelengths com…
Faint AGNs Favor Unexpectedly Long Inter-band Time Lags
Ting Li, Mouyuan Sun, Xiaoyu Xu +12
Inconsistent conclusions are obtained from recent active galactic nuclei (AGNs) accretion disk inter-band time-lag measurements. While some works show that the measured time lags a…
The Changing Look Blazar B2 1420+32
Hora D. Mishra, Xinyu Dai, Ping Chen +22
Blazars are active galactic nuclei with their relativistic jets pointing toward the observer, with two major sub-classes, the flat spectrum radio quasars and BL Lac objects. We pre…
Revisiting the complex kinematics of ionized gas at the central region of NGC 1068: evidence of an additional active galactic nucleus?
Jaejin Shin, Jong-Hak Woo, Minjin Kim +1
We present a spatially resolved analysis of ionized gas at the nuclear region of the nearby galaxy NGC 1068. While NGC 1068 has been known to have gas outflows driven by its active…
Extended X-ray Emission in Compton Thick AGN with Deep Chandra Observations
Mackenzie L Jones, K. Parker, G. Fabbiano +7
We present the spatial analysis of five Compton thick (CT) active galactic nuclei (AGNs), including MKN 573, NGC 1386, NGC 3393, NGC 5643, and NGC 7212, for which high resolution C…