1.5k citations · 14.3k across the 198 of their papers we have counts for
9 papers · 2 filters
Atomic gas fractions in active galactic nucleus host galaxies
Sara L. Ellison, Toby Brown, Barbara Catinella +1
The feedback from an active galactic nucleus (AGN) is frequently invoked as a mechanism through which gas can be heated or removed from a galaxy. However, gas fraction measurements…
The Effect of Galaxy Interactions on Molecular Gas Properties
Hsi-An Pan, Lihwai Lin, Bau-Ching Hsieh +26
Galaxy interactions are often accompanied by an enhanced star formation rate (SFR). Since molecular gas is essential for star formation, it is vital to establish whether, and by ho…
Two Growing Modes and the Morphology-Quiescence Relation in Galaxies
Joanna Woo, Sara L. Ellison
Quiescence in galaxies correlates strongly with the central density/morphology of the stellar distribution. We investigate two possible explanations for this morphology-quiescence…
Spatially resolved star formation and metallicity profiles in post-merger galaxies from MaNGA
Mallory D. Thorp, Sara L. Ellison, Luc Simard +2
Large galaxy surveys have demonstrated that galaxy-galaxy mergers can dramatically change the morphologies, star formation rates (SFRs) and metallicities of their constituents. How…
The COS-AGN survey: Revealing the nature of circum-galactic gas around hosts of active galactic nuclei
Trystyn A. M. Berg, Sara L. Ellison, Jason Tumlinson +4
Active galactic nuclei (AGN) are thought to play a critical role in shaping galaxies, but their effect on the circumgalactic medium (CGM) is not well studied. We present results fr…
Enhanced atomic gas fractions in recently merged galaxies: quenching is not a result of post-merger gas exhaustion
Sara L. Ellison, Barbara Catinella, Luca Cortese
We present a detailed assessment of the global atomic hydrogen gas fraction in a sample of post-merger galaxies identified in the Sloan Digital Sky Survey (SDSS). Archival HI measu…
Chemical enrichment in isolated barred spiral galaxies
Hugo Martel, Christian Carles, Fidèle Robichaud +2
To investigate the role of bars in the chemical evolution of isolated disc galaxies, we performed a series of 39 gas dynamical simulations of isolated barred and unbarred galaxies…
Galaxy pairs in the SDSS - XIII. The connection between enhanced star formation and molecular gas properties in galaxy mergers
Giulio Violino, Sara L. Ellison, Mark Sargent +4
We investigate the connection between star formation and molecular gas properties in galaxy mergers at low redshift (z0.06). The study we present is based on IRAM 30-m CO(1-0…
Galaxy mergers moulding the circum-galactic medium - I. The impact of a major merger
Maan H. Hani, Martin Sparre, Sara L. Ellison +2
Galaxies are surrounded by sizeable gas reservoirs which host a significant amount of metals: the circum-galactic medium (CGM). The CGM acts as a mediator between the galaxy and th…