Search Results - "Spekkens, K."
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1
The M101 Satellite Luminosity Function and the Halo-Halo Scatter among Local Volume Hosts
Published in The Astrophysical journal (10-11-2019)“…We have obtained deep Hubble Space Telescope (HST) imaging of 19 dwarf galaxy candidates in the vicinity of M101. Advanced Camera for Surveys HST photometry…”
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2
The Faint End of the Centaurus A Satellite Luminosity Function
Published in The Astrophysical journal (10-02-2019)“…The Panoramic Imaging Survey of Centaurus and Sculptor (PISCeS) is constructing a wide-field map of the resolved stellar populations in the extended halos of…”
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3
THE EXTENDED HALO OF CENTAURUS A: UNCOVERING SATELLITES, STREAMS, AND SUBSTRUCTURES
Published in The Astrophysical journal (20-05-2016)“…ABSTRACT We present the widest-field resolved stellar map to date of the closest ( Mpc) massive elliptical galaxy NGC 5128 (Centaurus A; Cen A), extending out…”
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4
Discovery of Diffuse Dwarf Galaxy Candidates around M101
Published in The Astrophysical journal (20-11-2017)“…We have conducted a search of a 9 deg2 region of the Canada-France-Hawaii-Telescope Legacy Survey around the Milky Way analog M101 (D ∼ 7 Mpc), in order to…”
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WALLABY pre-pilot survey: H i content of the Eridanus supergroup
Published in Monthly notices of the Royal Astronomical Society (01-10-2021)“…ABSTRACT We present observations of the Eridanus supergroup obtained with the Australian Square Kilometre Array Pathfinder (ASKAP) as part of the pre-pilot…”
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WALLABY Pre-pilot Survey: The Effects of Tidal Interaction on Radial Distribution of Color in Galaxies of the Eridanus Supergroup
Published in The Astrophysical journal (01-03-2022)“…Abstract We study the tidal interaction of galaxies in the Eridanus supergroup, using H i data from the pre-pilot survey of the Widefield ASKAP L -band Legacy…”
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7
Measuring galaxy asymmetries in 3D
Published in Monthly notices of the Royal Astronomical Society (08-06-2023)“…ABSTRACT One of the commonly used non-parametric morphometric statistics for galaxy profiles and images is the asymmetry statistic. With an eye to current and…”
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8
ASymba: H i global profile asymmetries in the simba simulation
Published in Monthly notices of the Royal Astronomical Society (11-10-2022)“…ABSTRACT Asymmetry in the spatially integrated, 1D H i global profiles of galaxies can inform us on both internal (e.g. outflows) and external (e.g. mergers,…”
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9
The incidence of bar-like kinematic flows in CALIFA galaxies
Published in Monthly notices of the Royal Astronomical Society (21-08-2015)“…We carry out a direct search for bar-like non-circular flows in intermediate-inclination, gas-rich disc galaxies with a range of morphological types and…”
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10
Hubble Space Telescope Imaging of Antlia B: Star Formation History and a New Tip of the Red Giant Branch Distance
Published in The Astrophysical journal (01-01-2020)“…A census of the satellite population around dwarf galaxy primary hosts in environments outside the Local Group is essential to understanding Λ cold dark matter…”
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11
Hubble Space Telescope Imaging of the Ultra-compact High Velocity Cloud AGC 226067: A Stripped Remnant in the Virgo Cluster
Published in The Astrophysical journal (10-07-2017)“…We analyze the optical counterpart to the ultra-compact high velocity cloud AGC 226067, utilizing imaging taken with the Advanced Camera for Surveys (ACS) on…”
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12
WALLABY pilot survey: H i gas disc truncation and star formation of galaxies falling into the Hydra I cluster
Published in Monthly notices of the Royal Astronomical Society (01-02-2022)“…ABSTRACT We present results from our analysis of the Hydra I cluster observed in neutral atomic hydrogen (H i) as part of the Widefield ASKAP L-band Legacy…”
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13
SIGNALS: I. Survey description
Published in Monthly notices of the Royal Astronomical Society (11-11-2019)“…ABSTRACT SIGNALS, the Star formation, Ionized Gas, and Nebular Abundances Legacy Survey, is a large observing programme designed to investigate massive star…”
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14
Automated kinematic modelling of warped galaxy discs in large H i surveys: 3D tilted-ring fitting of H i emission cubes
Published in Monthly notices of the Royal Astronomical Society (21-09-2015)“…Kinematical parametrizations of disc galaxies, employing emission line observations, are indispensable tools for studying the formation and evolution of…”
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15
MIGHTEE – H i . The relation between the H i gas in galaxies and the cosmic web
Published in Monthly notices of the Royal Astronomical Society (04-05-2022)“…ABSTRACT We study the 3D axis of rotation (3D spin) of 77 H i galaxies from the MIGHTEE-H i Early Science observations, and its relation to the filaments of…”
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WALLABY pre-pilot survey: ultra-diffuse galaxies in the Eridanus supergroup
Published in Monthly notices of the Royal Astronomical Society (29-09-2023)“…ABSTRACT We present a pilot study of the atomic neutral hydrogen gas (H i) content of ultra-diffuse galaxy (UDG) candidates. In this paper, we use the…”
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WALLABY pilot survey: first look at the Hydra I cluster and ram pressure stripping of ESO 501−G075
Published in Monthly notices of the Royal Astronomical Society (01-08-2021)“…ABSTRACT We present results from neutral atomic hydrogen (H i) observations of Hydra I, the first cluster observed by the Widefield ASKAP L-band Legacy All-sky…”
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WALLABY Pilot Survey: The Diversity of Ram Pressure Stripping of the Galactic H i Gas in the Hydra Cluster
Published in The Astrophysical journal (01-07-2021)“…Abstract This study uses H i image data from the Widefield ASKAP L-band Legacy All-sky Blind surveY (WALLABY) pilot survey with the Australian Square Kilometre…”
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WALLABY pilot survey: the potential polar ring galaxies NGC 4632 and NGC 6156
Published in Monthly notices of the Royal Astronomical Society (01-09-2023)“…ABSTRACT We report on the discovery of two potential polar ring galaxies (PRGs) in the WALLABY Pilot Data Release 1 (PDR1). These untargeted detections,…”
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20
Hubble Space Telescope Imaging of Isolated Local Volume Dwarfs GALFA Dw3 and Dw4
Published in The Astrophysical journal (01-01-2022)“…Abstract We present observations of the dwarf galaxies GALFA Dw3 and GALFA Dw4 with the Advanced Camera for Surveys on the Hubble Space Telescope. These…”
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