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396 papers · 1 filter
Estimating the local star formation rate density from ASKAP RACS
Sonja Panjkov, O. Ivy Wong., Rachel L. Webster
Understanding the evolution of the cosmic star formation rate density (SFRD) is key to uncovering how the Universe arrived at its present state. This paper presents a novel and eff…
Optical Variability Structure Function of Low-Luminosity AGN using ATLAS Lightcurves
Ashley Hai Tung Tan, Christian Wolf, Neelesh Amrutha +3
The origin of the optical flux variability in active galactic nuclei (AGN) is largely unknown. Previous studies have correlated features of the variability structure function (SF)…
Targeted search for eccentric supermassive binary black holes in OJ 287 and nearby galaxy clusters with PPTA DR3
Shi-Yi Zhao, Xingjiang Zhu, Jacob Cardinal Tremblay +19
We perform Bayesian targeted searches for continuous gravitational waves from eccentric supermassive binary black holes (SMBBHs) using the Parkes Pulsar Timing Array third data rel…
Tracing Active Galactic Nuclei Properties Through a Changing-look Event
Joel Carpenter, Sandra Raimundo, Charlotte Angus +1
Changing-look transitions challenge our understanding of active galactic nuclei (AGN), exhibiting dramatic changes in broad-line emission and continuum flux on timescales of months…
A catalogue of Type 2 active galactic nuclei in the 6dF Galaxy Survey
Sruthi Suresh, Wei Jeat Hon, Rachel L Webster +2
Active galactic nuclei (AGNs) are the compact, energetic central regions of galaxies, powered by supermassive black holes that accrete surrounding gas and dust. Their optical spect…
Accelerated evolution of galaxy host halo masses during Cosmic Dawn from deep JWST clustering
Nicolò Dalmasso, Giovanni Ferrami, Nicha Leethochawalit +2
We present the deepest clustering analysis of early galaxies to date, analyzing photometrically-selected Lyman Break Galaxies from JWST's Advanced Deep Ext…