110 citations · 319 across the 10 of their papers we have counts for
10 papers
Ultra-diffuse Galaxy Analogues in the Subaru Hyper-Suprime Cam Wide-field Clusters
N. A. Makda, S. L. Blyth, R. E. Skelton
We perform a systematic statistical study of ultra-diffuse galaxy analogues (NUDGEs) in a large sample of galaxy clusters to investigate their properties with respect to the host c…
Variation of galactic cold gas reservoirs with stellar mass
Natasha Maddox, Kelley M. Hess, Danail Obreschkow +2
The stellar and neutral hydrogen (HI) mass functions at z~0 are fundamental benchmarks for current models of galaxy evolution. A natural extension of these benchmarks is the two-di…
A Simple Model for Global HI Profiles of Galaxies
I. M. Stewart, S. -L. Blyth, W. J. G. de Blok
Context. Current and future blind surveys for HI generate large catalogs of spectral lines for which automated characterization would be convenient. Aims. A 6-parameter mathematica…
Quantified HI Morphology VII: star-formation and tidal influence on local dwarf HI morphology
B. W. Holwerda, N. Pirzkal, W. J. G. de Blok +1
Scale-invariant morphology parameters applied to atomic hydrogen maps (HI) of galaxies can be used to quantify the effects of tidal interaction or star-formation on the ISM. Here w…
Comparison of HI and optical redshifts of galaxies - The impact of redshift uncertainties on spectral line stacking
Natasha Maddox, Kelley M. Hess, S. -L. Blyth +1
Accurate optical redshifts will be critical for spectral co-adding techniques used to extract detections from below the noise level in ongoing and upcoming surveys for HI, which wi…
Quantified HI Morphology III: Merger Visibility Times from HI in Galaxy Simulations
B. W. Holwerda, N. Pirzkal, T. J. Cox +5
Major mergers of disk galaxies are thought to be a substantial driver in galaxy evolution. To trace the fraction and the rate galaxies are in mergers over cosmic times, several obs…
Quantified HI Morphology IV: The Merger Fraction and Rate in WHISP
B. W. Holwerda, N. Pirzkal, W. J. G. de Blok +3
The morphology of the atomic hydrogen (HI) disk of a spiral galaxy is the first component to be disturbed by a gravitational interaction such as a merger between two galaxies. We u…
Quantified HI Morphology II : Lopsidedness and Interaction in WHISP Column Density Maps
B. W. Holwerda, N. Pirzkal, W. J. G. de Blok +4
Lopsidedness of the gaseous disk of spiral galaxies is a common phenomenon in disk morphology, profile and kinematics. Simultaneously, the asymmetry of a galaxy's stellar disk, in…
Quantified HI Morphology I: Multi-Wavelengths Analysis of the THINGS Galaxies
B. W. Holwerda, N. Pirzkal, W. J. G. de Blok +4
Galaxy evolution is driven to a large extent by interactions and mergers with other galaxies and the gas in galaxies is extremely sensitive to the interactions. One method to measu…
Luminous Red Galaxies in Simulations: Cosmic Chronometers?
S. M. Crawford, A. L. Ratsimbazafy, C. M. Cress +3
There have been a number of attempts to measure the expansion rate of the universe at high redshift using Luminous Red Galaxies (LRGs) as "chronometers". The method generally assum…