4 papers · 1 filter
Overlap Zoo Beta: A Catalogue of ~800 Occulting Pairs in the DESI Legacy Survey using Citizen Science
T. Butrum, B. Holwerda, W. C. Keel +11
Overlapping galaxies, in which a foreground galaxy partially overlaps a background galaxy, offer a unique opportunity to measure dust attenuation, a key nuisance parameter in galax…
Comparing X-ray Emission Line Fluxes of NGC 5548 to NGC 1068
Divya Patel, Maryam Dehghanian, Gary Ferland
The Unification Model of AGN suggests that all AGN galaxies should exhibit similar line ratios in their spectra. NGC 5548, a Seyfert I, underwent obscuration -- similar to naturall…
The Galaxy Zoo Catalogs for the Galaxy And Mass Assembly (GAMA) Survey
Benne W. Holwerda, Clayton Robertson, Kyle Cook +16
Galaxy Zoo is an online project to classify morphological features in extra-galactic imaging surveys with public voting. In this paper, we compare the classifications made for two…
Ground- and Space-Based Dust Observations of VV 191 Overlapping Galaxy Pair
C. Robertson, B. Holwerda, J. Young +12
The Balmer decrement (H/H) provides a constraint on attenuation, the cumulative effects of dust grains in the ISM. The ratio is a reliable spectroscopic tool for deriving the…