Showing 2021 · astro-ph.GAShow all

24 papers · 2 filters

astro-ph.GA2021★ 53 cited

Deep Extragalactic VIsible Legacy Survey (DEVILS): Identification of AGN through SED Fitting and the Evolution of the Bolometric AGN Luminosity Function

Jessica E. Thorne, Aaron S. G. Robotham, Luke J. M. Davies +15

Active galactic nuclei (AGN) are typically identified through radio, mid-infrared, or X-ray emission or through the presence of broad and/or narrow emission lines. AGN can also lea…

astro-ph.GA2021★ 34 cited

On the rise times in FU Orionis events

Elisabeth M. A. Borchert, Daniel J. Price, Christophe Pinte +1

We examine whether stellar flyby simulations can initiate FU Orionis outbursts using 3D hydrodynamics simulations coupled to live Monte Carlo radiative transfer. We find that a fly…

astro-ph.GA2021★ 11 cited

Galaxy and Mass Assembly (GAMA): The Weak Environmental Dependence of Quasar Activity at 0.1<z<0.35

Clare F. Wethers, Nischal Acharya, Roberto De Propris +13

Understanding the connection between nuclear activity and galaxy environment remains critical in constraining models of galaxy evolution. By exploiting extensive catalogued data fr…

astro-ph.GA2021★ 19 cited

Galactic Chemical Evolution of Radioactive Isotopes with an s-process Contribution

T. C. L. Trueman, B. Côté, A. Yagüe López +5

Analysis of inclusions in primitive meteorites reveals that several short-lived radionuclides (SLRs) with half-lives Myr existed in the early Solar System (ESS). We inves…

astro-ph.GA2021★ 9 cited

Some First Stars Were Red: Detecting Signatures of Massive Population III Formation Through Long-Term Stochastic Color Variations

Tyrone E. Woods, Chris J. Willott, John A. Regan +4

Identifying stars formed in pristine environments (Pop III) within the first billion years is vital to uncovering the earliest growth and chemical evolution of galaxies. Pop III ga…

astro-ph.GA2021★ 11 cited

The Fe(n, γ)Fe Cross Section from the Surrogate Ratio Method and Its Effect on the Fe Nucleosynthesis

S. Q. Yan, X. Y. Li, K. Nishio +39

The long-lived Fe (with a half-life of 2.62 Myr) is a crucial diagnostic of active nucleosynthesis in the Milky Way galaxy and in supernovae near the solar system. The neutr…