Search Results - "Danieli, Shany"
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Hunting Faint Dwarf Galaxies in the Field Using Integrated Light Surveys
Published in The Astrophysical journal (20-03-2018)“…We discuss the approach of searching the lowest mass dwarf galaxies, , in the general field, using integrated light surveys. By exploring the limiting surface…”
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Revisiting the Size-Luminosity Relation in the Era of Ultra Diffuse Galaxies
Published in The Astrophysical journal (20-04-2019)“…Galaxies are generally found to follow a relation between their size and luminosity, such that luminous galaxies typically have large sizes. The recent…”
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The Exploration of Local VolumE Satellites (ELVES) Survey: A Nearly Volume-limited Sample of Nearby Dwarf Satellite Systems
Published in The Astrophysical journal (01-07-2022)“…Abstract We present the final sample of the Exploration of Local VolumE Satellites (ELVES) survey, a survey of the dwarf satellites of a nearly volume-limited…”
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4
ArtPop: A Stellar Population and Image Simulation Python Package
Published in The Astrophysical journal (01-12-2022)“…Abstract We present Art ificial Stellar Pop ulations ( ArtPop ), an open-source Python package for synthesizing stellar populations and generating artificial…”
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A Complex Luminosity Function for the Anomalous Globular Clusters in NGC 1052-DF2 and NGC 1052-DF4
Published in The Astrophysical journal (01-03-2021)“…Abstract NGC 1052-DF2 and NGC 1052-DF4 are ultradiffuse galaxies that have extremely low velocity dispersions, indicating that they have little or no dark…”
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Spatially Resolved Stellar Kinematics of the Ultra-diffuse Galaxy Dragonfly 44. I. Observations, Kinematics, and Cold Dark Matter Halo Fits
Published in The Astrophysical journal (01-08-2019)“…We present spatially resolved stellar kinematics of the well-studied ultra-diffuse galaxy (UDG) Dragonfly 44, as determined from 25.3 hr of observations with…”
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Dynamical Friction in Globular Cluster-rich Ultra-diffuse Galaxies: The Case of NGC5846-UDG1
Published in Astrophysical journal. Letters (01-06-2022)“…Abstract Ultra-diffuse galaxies that contain a large sample of globular clusters (GCs) offer an opportunity to test the predictions of galactic dynamics…”
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Confirmation of an Anomalously Low Dark Matter Content for the Galaxy NGC 1052-DF4 from Deep, High-resolution Continuum Spectroscopy
Published in The Astrophysical journal (01-11-2023)“…Abstract NGC 1052-DF4 was found to be the second “galaxy lacking dark matter” in the NGC 1052 group, based on its velocity dispersion of σ gc = 4.2 − 2.2 + 4.4…”
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The Dragonfly Nearby Galaxies Survey. III. The Luminosity Function of the M101 Group
Published in The Astrophysical journal (10-03-2017)“…We obtained follow-up HST observations of the seven low surface brightness galaxies discovered with the Dragonfly Telephoto Array in the field of the massive…”
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The Dragonfly Nearby Galaxies Survey. V. HST/ACS Observations of 23 Low Surface Brightness Objects in the Fields of NGC 1052, NGC 1084, M96, and NGC 4258
Published in The Astrophysical journal (01-12-2018)“…We present Hubble Space Telescope/Advanced Camera for Surveys (ACS) imaging of 23 very low surface brightness ( e,V ∼ 25-27.5) galaxies detected in the fields…”
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THE DRAGONFLY NEARBY GALAXIES SURVEY. II. ULTRA-DIFFUSE GALAXIES NEAR THE ELLIPTICAL GALAXY NGC 5485
Published in The Astrophysical journal (20-12-2016)“…ABSTRACT We present the unexpected discovery of four ultra-diffuse galaxies (UDGs) in a group environment. We recently identified seven extremely low surface…”
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Constrain the Dark-matter Distribution of Ultra-diffuse Galaxies with Globular-cluster Mass Segregation: A Case Study with NGC5846-UDG1
Published in The Astrophysical journal (01-03-2024)“…Abstract The properties of globular clusters (GCs) contain valuable information of their host galaxies and dark-matter halos. In the remarkable example of…”
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Stellar Halos from the The Dragonfly Edge-on Galaxies Survey
Published in The Astrophysical journal (01-06-2022)“…Abstract We present the primary results from the Dragonfly Edge-on Galaxies Survey, an exploration of the stellar halos of twelve nearby ( d < 25 Mpc) edge-on…”
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Multi-resolution Filtering: An Empirical Method for Isolating Faint, Extended Emission in Dragonfly Data and Other Low Resolution Images
Published in Publications of the Astronomical Society of the Pacific (01-07-2020)“…We describe an empirical, self-contained method to isolate faint, large-scale emission in imaging data of low spatial resolution. Multi-resolution filtering…”
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Distinguishing Dark Matter Cusps from Cores Using Globular Clusters
Published in The Astrophysical journal (01-06-2023)“…Abstract Globular clusters (GCs) provide valuable insight into the properties of their host galaxies’ dark matter halos. Using N -body simulations…”
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The Dragonfly Edge-on Galaxies Survey: Shaping the Outer disk of NGC 4565 via Accretion
Published in The Astrophysical journal (01-07-2020)“…We present deep g- and r-band imaging of the well-known edge-on galaxy NGC 4565 (the "Needle Galaxy"), observed as part of the Dragonfly Edge-on Galaxies…”
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The Dragonfly Wide Field Survey. I. Telescope, Survey Design, and Data Characterization
Published in The Astrophysical journal (01-05-2020)“…We present a description of the Dragonfly Wide Field Survey (DWFS), a deep photometric survey of a wide area of sky. The DWFS covers 330 deg2 in the equatorial…”
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A Search for Wandering Black Holes in the Milky Way with Gaia and DECaLS
Published in The Astrophysical journal (01-08-2021)“…Abstract We present a search for “hypercompact” star clusters in the Milky Way using a combination of Gaia and the Dark Energy Camera Legacy Survey (DECaLS)…”
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Spatially Resolved Stellar Kinematics of the Ultra-diffuse Galaxy Dragonfly 44. II. Constraints on Fuzzy Dark Matter
Published in The Astrophysical journal (10-11-2019)“…Given the absence of directly detected dark matter (DM) as weakly interacting massive particles, there is strong interest in the possibility that DM is an…”
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ELVES. IV. The Satellite Stellar-to-halo Mass Relation Beyond the Milky Way
Published in The Astrophysical journal (01-10-2023)“…Abstract Quantifying the connection between galaxies and their host dark matter halos has been key for testing cosmological models on various scales. Below M ⋆…”
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