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38 papers · 2 filters
The environmental dependence of gas accretion onto galaxies: quenching satellites through starvation
Freeke van de Voort, Yannick M. Bahé, Richard G. Bower +4
Galaxies that have fallen into massive haloes may no longer be able to accrete gas from their surroundings, a process referred to as 'starvation' or 'strangulation' of satellites.…
Fading AGN Candidates: AGN Histories and Outflow Signatures
William C. Keel, Chris J. Lintott, W. Peter Maksym +12
We consider energy budgets and radiative history of 8 fading AGN, identified from mismatch between the ionizion of very extended (>10 kpc) ionized clouds and the luminosity of the…
The Size Evolution of Star-forming Galaxies Since z~7 Using ZFOURGE
Rebecca J. Allen, Glenn G. Kacprzak, Karl Glazebrook +10
For the first time, we present the size evolution of a mass-complete (log(M*/Msol)>10) sample of star-forming galaxies over redshifts z=1-7, selected from the FourStar Galaxy Evolu…
Young stars in the periphery of the Large Magellanic Cloud
C. Moni Bidin, D. I. Casetti-Dinescu, T. M. Girard +5
Despite their close proximity, the complex interplay between the two Magellanic Clouds, the Milky Way, and the resulting tidal features, is still poorly understood. Recent studies…
A massive, quiescent, population II galaxy at a redshift of 2.1
Mariska Kriek, Charlie Conroy, Pieter G. van Dokkum +7
Unlike spiral galaxies such as the Milky Way, the majority of the stars in massive elliptical galaxies were formed in a short period early in the history of the Universe. The durat…
The Stellar Initial Mass Function in Early-Type Galaxies From Absorption Line Spectroscopy. IV. A Super-Salpeter IMF in the center of NGC 1407 from Non-Parametric Models
Charlie Conroy, Pieter van Dokkum, Alexa Villaume
It is now well-established that the stellar initial mass function (IMF) can be determined from the absorption line spectra of old stellar systems, and this has been used to measure…