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LMC Stars and Where to Find Them: Inferring Birth Radii for External Galaxies
Yuxi, Lu, Tobias Buck +5
It is well known that stars move away from their birth location over time via radial migration. This dynamical process makes computing the correct chemical evolution, e.g., metalli…
AGN radiation imprints on the circumgalactic medium of massive galaxies
Aura Obreja, Fabrizio Arrigoni Battaia, Andrea V. Macciò +1
Active Galactic Nuclei (AGN) in cosmological simulations generate explosive feedback that regulates star formation in massive galaxies, modifying the gas phase structure out to lar…
Circumgalactic Ly emission around submillimeter-bright galaxies with different quasar contributions
Vale González Lobos, Fabrizio Arrigoni Battaia, Seok-Jun Chang +6
We present VLT/MUSE observations targeting the extended Lyman- (Ly) emission of five high-redshift (3-4) submillimeter galaxies (SMGs) with increasing quasar (QSO) rad…
The luminosity-area relation of quasars' Ly nebulae
Fabrizio Arrigoni Battaia, Aura Obreja, Tiago Costa +2
Cool (~K) gas is commonly observed around quasars as traced by extended Ly emission. These large-scale nebulae are usually studied using circularly averaged sur…
The impact of early massive mergers on the chemical evolution of Milky Way-like galaxies: insights from NIHAO-UHD simulations
Tobias Buck, Aura Obreja, Bridget Ratcliffe +4
Recent observations of the Milky Way (MW) found an unexpected steepening of the star-forming gas metallicity gradient around the time of the Gaia-Sausage-Enceladus (GSE) merger eve…
JCMT/SCUBA-2 uncovers an excess of m counts on megaparsec scales around high-redshift quasars. Characterization of the overdensities and their alignment with the quasars' Ly nebulae
Fabrizio Arrigoni Battaia, Aura Obreja, Chian-Chou Chen +7
We conducted a systematic survey of the environment of high-z quasars at submillimeter wavelengths to unveil and characterize the surrounding distribution of dusty submillimeter ga…