Search Results - "Spekkens, Kristine"
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A Deeper Look at the New Milky Way Satellites: Sagittarius II, Reticulum II, Phoenix II, and Tucana III
Published in The Astrophysical journal (10-08-2018)“…Abstract We present deep Magellan /Megacam stellar photometry of four recently discovered faint Milky Way satellites: Sagittarius II (Sgr II), Reticulum II…”
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Systematically Measuring Ultradiffuse Galaxies in H i: Results from the Pilot Survey
Published in The Astrophysical journal (01-10-2020)“…Abstract We present neutral hydrogen (H i ) observations using the Robert C. Byrd Green Bank Telescope (GBT) of 70 optically detected UDG candidates in the…”
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3
On the Properties of Spectroscopically Confirmed Ultra-diffuse Galaxies across Environments
Published in The Astrophysical journal (01-12-2021)“…Abstract We present new redshift measurements for 19 candidate ultra-diffuse galaxies (UDGs) from the Systematically Measuring Ultra-Diffuse Galaxies (SMUDGes)…”
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Systematically Measuring Ultra-diffuse Galaxies (SMUDGes). V. The Complete SMUDGes Catalog and the Nature of Ultradiffuse Galaxies
Published in The Astrophysical journal. Supplement series (01-08-2023)“…Abstract We present the completed catalog of ultradiffuse galaxy (UDG) candidates (7070 objects) from our search of the DR9 Legacy Survey images, including…”
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5
Systematically Measuring Ultradiffuse Galaxies. VII. The H i Survey Overview
Published in The Astrophysical journal (01-11-2024)“…Abstract We present the results from the neutral hydrogen (H i ) follow-up survey of 378 optically detected ultradiffuse galaxy (UDG) candidates from the…”
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A Deep CFHT Optical Search for a Counterpart to the Possible Neutron Star-Black Hole Merger GW190814
Published in The Astrophysical journal (01-06-2020)“…We present a wide-field optical imaging search for electromagnetic counterparts to the likely neutron star-black hole (NS-BH) merger GW190814/S190814bv. This…”
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7
Hubble Space Telescope Observations of NGC 253 Dwarf Satellites: Three Ultra-faint Dwarf Galaxies
Published in The Astrophysical journal (01-02-2022)“…Abstract We present deep Hubble Space Telescope (HST) imaging of five faint dwarf galaxies associated with the nearby spiral NGC 253 (D ≈ 3.5 Mpc). Three of…”
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Gas-rich, Field Ultra-diffuse Galaxies Host Few Gobular Clusters
Published in Astrophysical journal. Letters (01-01-2023)“…Abstract We present Hubble Space Telescope imaging of 14 gas-rich, low-surface-brightness galaxies in the field at distances of 25–36 Mpc, with mean effective…”
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9
Hubble Space Telescope Observations of Two Faint Dwarf Satellites of Nearby LMC Analogs from MADCASH
Published in The Astrophysical journal (01-03-2021)“…Abstract We present a deep Hubble Space Telescope (HST) imaging study of two dwarf galaxies in the halos of Local Volume Large Magellanic Cloud (LMC) analogs…”
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10
VERTICO II: How H i-identified Environmental Mechanisms Affect the Molecular Gas in Cluster Galaxies
Published in The Astrophysical journal (01-07-2022)“…Abstract In this VERTICO early science paper we explore in detail how environmental mechanisms, identified in H i , affect the resolved properties of molecular…”
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11
All Puffed Up: Exploring Ultra-diffuse Galaxy Origins Through Galaxy Interactions
Published in The Astronomical journal (01-11-2024)“…Abstract We present new follow-up observations of two ultra-diffuse galaxies (UDGs) selected for their distorted morphologies and tidal features, suggestive of…”
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12
Modeling Noncircular Motions in Disk Galaxies: Application to NGC 2976
Published in The Astrophysical journal (20-07-2007)“…We present a new procedure to fit nonaxisymmetric flow patterns to two-dimensional velocity maps of spiral galaxies. We concentrate on flows caused by barlike…”
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13
Gas and Star Formation in Satellites of Milky Way Analogs
Published in The Astrophysical journal (01-05-2024)“…Abstract We have imaged the entirety of eight (plus one partial) Milky Way (MW)–like satellite systems, a total of 42 (45) satellites, from the Satellites…”
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Pavo: Discovery of a Star-forming Dwarf Galaxy Just Outside the Local Group
Published in Astrophysical journal. Letters (01-11-2023)“…Abstract We report the discovery of Pavo, a faint ( M V = −10.0), star-forming, irregular, and extremely isolated dwarf galaxy at D ≈ 2 Mpc. Pavo was…”
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15
The Disturbed and Globular-cluster-rich Ultradiffuse Galaxy UGC 9050-Dw1
Published in Astrophysical journal. Letters (01-09-2023)“…Abstract We investigate the ultradiffuse galaxy (UDG) UGC 9050-Dw1, which was selected because of its disturbed morphology as part of a larger sample of UDGs…”
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The Faint Satellite System of NGC 253: Insights into Low-density Environments and No Satellite Plane
Published in The Astrophysical journal (01-05-2024)“…Abstract We have conducted a systematic search around the Milky Way (MW) analog NGC 253 ( D = 3.5 Mpc), as a part of the Panoramic Imaging Survey of Centaurus…”
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Exploring the Structures and Substructures of the Andromeda Satellite Dwarf Galaxies Cassiopeia III, Perseus I, and Lacerta I
Published in The Astronomical journal (01-11-2023)“…Abstract We present results from wide-field imaging of the resolved stellar populations of the dwarf spheroidal galaxies Cassiopeia III (And XXXII) and Perseus…”
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18
Corvus A: A Low-mass, Isolated Galaxy at 3.5 Mpc
Published in Astrophysical journal. Letters (01-08-2024)“…We report the discovery of Corvus A, a low-mass, gas-rich galaxy at a distance of approximately 3.5 Mpc, identified in DR10 of the Dark Energy Camera Legacy…”
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ALMA/ACA CO Survey of the IC 1459 and NGC 4636 Groups: Environmental Effects on the Molecular Gas of Group Galaxies
Published in The Astrophysical journal. Supplement series (01-09-2022)“…Abstract We present new results of a 12 CO( J = 1–0) imaging survey using the Atacama Compact Array (ACA) for 31 H i detected galaxies in the IC 1459 and NGC…”
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Dark No More: The Low-luminosity Stellar Counterpart of a Dark Cloud in the Virgo Cluster
Published in Astrophysical journal. Letters (01-05-2024)“…Abstract We have discovered the stellar counterpart to the ALFALFA Virgo 7 cloud complex, which has been thought to be optically dark and nearly star-free…”
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