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EUCLIA - Exploring the UV/optical continuum lag in active galactic nuclei. I. a model without light echoing
Zhen-Yi Cai, Jun-Xian Wang, Fei-Fan Zhu +4
The tight inter-band correlation and the lag-wavelength relation among UV/optical continua of active galactic nuclei have been firmly established. They are usually understood withi…
On the UV/optical variation in NGC 5548: new evidence against the reprocessing diagram
Fei-Fan Zhu, Jun-Xian Wang, Zhen-Yi Cai +3
The reprocessing scenario is widely adopted in literature to explain the observed tight inter-band correlation and short lags in the UV/optical variations of active galactic nuclei…
The Faint End of the z=5 Quasar Luminosity Function from the CFHTLS
Ian D. McGreer, Xiaohui Fan, Linhua Jiang +1
We presents results from a spectroscopic survey of quasars in the CFHT Legacy Survey (CFHTLS). Using both optical color selection and a likelihood method we select 97 cand…
MAHALO Deep Cluster Survey I. Accelerated and enhanced galaxy formation in the densest regions of a protocluster at z=2.5
Rhythm Shimakawa, Tadayuki Kodama, Masao Hayashi +6
We carried out deep H narrowband imaging with 10 hours net integrations towards the young protocluster, USS1558003 at with the Subaru Telescope. This system is compo…
Probing the Metal Enrichment of the Intergalactic Medium at Using the Hubble Space Telescope
Zheng Cai, Xiaohui Fan, Romeel Dave +2
We test the galactic outflow model by probing associated galaxies of four strong intergalactic CIV absorbers at --6 using the Hubble Space Telescope (HST) ACS ramp narrowband…
Deep Learning of Quasar Spectra to Discover and Characterize Damped Lya Systems
David Parks, J. Xavier Prochaska, Shawfeng Dong +1
We have designed, developed, and applied a convolutional neural network (CNN) architecture using multi-task learning to search for and characterize strong HI Lya absorption in quas…
Does the evolution of the radio luminosity function of star-forming galaxies match that of the star-formation rate function?
Matteo Bonato, Mattia Negrello, Claudia Mancuso +9
The assessment of the relationship between radio continuum luminosity and star formation rate (SFR) is of crucial importance to make reliable predictions for the forthcoming ultra-…
High Lyman Continuum Escape Fraction in a Lensed Young Compact Dwarf Galaxy at
Fuyan Bian, Xiaohui Fan, Ian McGreer +2
We present the HST WFC3/F275W UV imaging observations of A2218-Flanking, a lensed compact dwarf galaxy at redshift . The stellar mass of A2218-Flanking is $\log(M/M_{\…
A Ringed Dwarf LINER 1 Galaxy Hosting an Intermediate-mass Black Hole with Large-scale Rotation-like Hα Emission
Wen-Juan Liu, Lei Qian, Xiao-Bo Dong +7
We report the discovery of a 20-kpc-sized Hα emission in SDSS J083803.68+540642.0, a ringed dwarf galaxy (M = -17.89 mag) hosting an accreting intermediate-mass black hole at z…
The First Data Release of the Beijing-Arizona Sky Survey
Hu Zou, Tianmeng Zhang, Zhimin Zhou +25
The Beijing-Arizona Sky Survey (BASS) is a new wide-field legacy imaging survey in the northern Galactic cap using the 2.3m Bok telescope. The survey will cover about 5400 deg…