713 citations · 7.3k across the 111 of their papers we have counts for
6 papers · 1 filter
Galaxy Zoo: CANDELS Barred Disks and Bar Fractions
B. D. Simmons, Thomas Melvin, Chris Lintott +39
The formation of bars in disk galaxies is a tracer of the dynamical maturity of the population. Previous studies have found that the incidence of bars in disks decreases from the l…
HST Imaging of Fading AGN Candidates I: Host-Galaxy Properties and Origin of the Extended Gas
William C. Keel, W. Peter Maksym, Vardha N. Bennert +11
We present narrow- and medium-band HST imaging, with additional supporting ground-based data, for 8 galaxies identified as hosting fading AGN. These have AGN-ionized gas projected…
Deep Spectroscopy of the Host Galaxy of a Tidal Disruption Flare in A1795
W. Peter Maksym, Melville Ulmer, Kathy Roth +5
A likely tidal disruption of a star by the intermediate-mass black hole (IMBH) of a dwarf galaxy was recently identified in association with Abell 1795. Without deep spectroscopy f…
Spatially-Resolved Spectra of the "Teacup" AGN: Tracing the History of a Dying Quasar
J. P. Gagne, D. M. Crenshaw, S. B. Kraemer +6
The Sloan Digital Sky Survey (SDSS) Galaxy Zoo project has revealed a number of spectacular galaxies possessing Extended Emission-Line Regions (EELRs), the most famous being Hanny'…
The Green Valley is a Red Herring: Galaxy Zoo reveals two evolutionary pathways towards quenching of star formation in early- and late-type galaxies
Kevin Schawinski, C. Megan Urry, Brooke D. Simmons +13
We use SDSS+\textit{GALEX}+Galaxy Zoo data to study the quenching of star formation in low-redshift galaxies. We show that the green valley between the blue cloud of star-forming g…
The Ultraviolet Attenuation Law in Backlit Spiral Galaxies
William C. Keel, Anna M. Manning, Benne W. Holwerda +2
(Abridged) The effective extinction law (attenuation behavior) in galaxies in the emitted ultraviolet is well known only for actively star-forming objects and combines effects of t…