The Field of Streams: Sagittarius and its Siblings

Abstract

We use Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5) u,g,r,i,z photometry to study Milky Way halo substructure in the area around the North Galactic Cap. A simple color cut (g-r < 0.4) reveals the tidal stream of the Sagittarius dwarf spheroidal, as well as a number of other stellar structures in the field. Two branches (A and B) of the Sagittarius stream are clearly visible in an RGB-composite image created from 3 magnitude slices, and there is also evidence for a still more distant wrap behind the A branch. A comparison of these data with numerical models suggests that the shape of the Galactic dark halo is close to spherical.

ApJ (Letters), in press

References in corpus (2)

• The 2.5 m Telescope of the Sloan Digital Sky Survey
• The age of the main population of the Sagittarius dwarf spheroidal galaxy. Solving the "M giant conundrum"

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• The Frequency of Field Blue-Straggler Stars in the Thick Disk and Halo System of the Galaxy
• Stellar disc streams as probes of the Galactic potential and satellite impacts
• A Petal of the Sunflower: Photometry of the Stellar Tidal Stream in the Halo of Messier 63 (NGC 5055)
• Stellar Stream and Halo Structure in the Andromeda Galaxy From a Subaru/Hyper Suprime-Cam Survey
• Hubble Space Telescope Proper Motions along the Sagittarius Stream: I. Observations and Results for Stars in Four Fields
• Is NGC 5824 the Core of the Progenitor of the Cetus Stream?
• Spectroscopic Confirmation of the Pisces Overdensity
• Chemical Cartography. II. The Assembly History of the Galactic Stellar Halo Traced by Carbon-Enhanced Metal-Poor Stars
• Know thy star, know thy planet: Chemo-kinematically characterizing TESS targets
• A Megacam Survey of Outer Halo Satellites. II. Blue Stragglers in the Lowest Stellar Density Systems
• RR Lyrae in XSTPS: The halo density profile in the North Galactic Cap
• The effects of LMC-mass environments on their dwarf satellite galaxies in the FIRE simulations
• Euclid: Early Release Observations -- Deep anatomy of nearby galaxies
• Hunting the Parent of the Orphan Stream: Identifying Stream Members from Low-Resolution Spectroscopy
• The Hough Stream Spotter: A New Method for Detecting Linear Structure in Resolved Stars and Application to the Stellar Halo of M31
• Two New Halo Debris Streams in the Sloan Digital Sky Survey
• Exposing Sgr tidal debris behind the Galactic disk with M giants selected in WISE$\cap$2MASS
• HST/ACS colour-magnitude diagrams of M31 globular clusters
• Rotational signature of the Milky Way stellar halo
• Mapping the Galactic Halo with blue horizontal branch stars from the 2dF quasar redshift survey
• The impact of a massive Sagittarius dSph on GD-1-like streams
• Cosmological insights into the assembly of the radial and compact stellar halo of the Milky Way
• Identification of Sagittarius stream members in Angular Momentum space with Gaussian mixture techniques
• The IGIMF and other IMFs in dSphs: the case of Sagittarius
• Constraining the Gravitational Potential from the Projected Morphology of Extragalactic Tidal Streams
• Identifying Galactic Halo Substructure in 6D Phase-space Using $\sim$13,000 LAMOST K Giants
• How cosmological merger histories shape the diversity of stellar haloes
• On the metallicity distribution of the peculiar globular cluster M22
• Stellar over-densities in the halo: the extent of the Virgo over-density
• The stellar content of the COSMOS field as derived from morphological and SED based gtar/galaxy Separation
• Using Gaia DR2 to detect extratidal structures around the Galactic globular cluster NGC362
• Vertical and radial metallicity gradients in high latitude galactic fields with SDSS
• Discovery of Extended Tidal Tails around the Globular Cluster Palomar 13
• Slicing The Monoceros Overdensity with Suprime-Cam
• Detecting Thin Stellar Streams in External Galaxies: Resolved Stars & Integrated Light
• Group Finding in the Stellar Halo using Photometric Surveys: Current Sensitivity and Future Prospects
• Hunting the Parent of the Orphan Stream II: The First High-Resolution Spectroscopic Study
• The stellar halo in Local Group Hestia simulations I. The in-situ component and the effect of mergers
• The Stellar Density Profile of the Distant Galactic Halo
• The Kinematics and Chemistry of Red Horizontal Branch Stars in the Sagittarius Streams
• Phase-space Properties and Chemistry of the Sagittarius Stellar Stream Down to the Extremely Metal-poor ($[Fe/H]\lesssim -3$) Regime
• The Lives of High Redshift Mergers
• Modelling the chemical evolution of the Galaxy halo
• STREAMFINDER II: A possible fanning structure parallel to the GD-1 stream in Pan-STARRS1
• Hunting The Most Distant Stars in the Milky Way: Methods and Initial Results
• Contribution of Gaia Sausage to the Galactic Stellar Halo Revealed by K Giants and Blue Horizontal Branch Stars from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, Sloan Digital Sky Survey, and Gaia
• Cataloging Accreted Stars within Gaia DR2 using Deep Learning
• Serendipitous discovery of RR Lyrae stars in the Leo V ultra-faint galaxy
• Quantifying the Smoothness of the Stellar Halo: A Link to Accretion History
• Galaxy Evolution in Local Group Analogs. I. A GALEX study of nearby groups
• Hubble Space Telescope Proper Motions of Individual Stars in Stellar Streams: Orphan, Sagittarius, Lethe, and the New "Parallel" Stream
• Are ancient dwarf satellites the building blocks of the Galactic halo?
• On the relevance of chaos for halo stars in the Solar Neighbourhood
• The evolution of streams in a time-dependent potential
• Spitzer, Gaia, and the Potential of the Milky Way
• Stellar structures in the outer regions of M33
• The stellar halo in Local Group Hestia simulations III. Chemical abundance relations for accreted and in-situ stars
• The kinematic footprints of five stellar streams in Andromeda's halo
• Exploring the diversity and similarity of radially anisotropic Milky Way-like stellar haloes: implications for disrupted dwarf galaxy searches
• The StEllar Counterparts of COmpact high velocity clouds (SECCO) survey. I. Photos of ghosts
• Tidal tails of open clusters
• A machine--vision method for automatic classification of stellar halo substructure
• Update on the Cetus Polar Stream and its Progenitor
• A wide angle view of the Sagittarius dwarf Spheroidal Galaxy. I: VIMOS photometry and radial velocities across Sgr dSph major and minor axis
• Implications of the Gaia Sausage for Dark Matter Nuclear Interactions
• Identification of RR Lyrae stars in multiband, sparsely-sampled data from the Dark Energy Survey using template fitting and Random Forest classification
• Probing the Galactic halo with RR Lyrae stars $-$ III. The chemical and kinematic properties of the stellar halo
• Cresting the wave: Proper motions of the Eastern Banded Structure
• Dense Dark Matter Hairs Spreading Out from Earth, Jupiter and Other Compact Bodies
• Simulating cosmological substructure in the solar neighbourhood
• Discovery of new globular clusters in the Sagittarius dwarf galaxy
• Exploring the Sagittarius Stream with SEKBO Survey RR Lyrae Stars
• Dwarf Spheroidal Satellite Formation in a Reionized Local Group
• Gamma-ray emission from the Sagittarius Dwarf Spheroidal galaxy due to millisecond pulsars
• The Far-Away Blues: Exploring the Furthest Extents of the Boötes I Ultra Faint Dwarf Galaxy
• What galaxy masses perturb the local cosmic expansion?
• Unearthing Foundations of a Cosmic Cathedral: Searching the Stars for M33's Halo
• Kinematics & Chemistry of Halo Substructures: The Vicinity of the Virgo Over-Density
• Prospects for a Dark Matter annihilation signal towards the Sagittarius dwarf galaxy with ground based Cherenkov telescopes
• The assembly history of the Galactic inner halo inferred from alpha-patterns
• The substructures in the local stellar halo from Gaia and LAMOST
• The course of the Orphan Stream in the Northern Galactic Hemisphere traced with Gaia DR2
• Preparing for advanced LIGO: A Star-Galaxy Separation Catalog for the Palomar Transient Factory
• Finding halo streams with a pencil-beam survey: new wraps in the Sagittarius stream
• Halo orbits in cosmological disk galaxies: tracers of formation history
• Spiral arm kinematics for Milky Way stellar populations
• The outer disc in shambles: blind detection of Monoceros and ACS with Gaia's astrometric sample
• Selecting Sagittarius: Identification and Chemical Characterization of the Sagittarius Stream
• Milky Way archaeology using RR Lyrae and type II Cepheids I. The Orphan stream in 7D using RR Lyrae stars
• Kinematics beats dust: unveiling nested substructure in the perturbed outer disc of the Milky Way
• The thickness of HI in galactic discs under MOND: theory and application to the Galaxy
• DELVE-ing into the Jet: a thin stellar stream on a retrograde orbit at 30 kpc
• The outermost stellar halo of NGC 5128 (Centaurus A): Radial structure
• SMHASH: Anatomy of the Orphan Stream using RR Lyrae stars
• Incorporating Streams into Milky Way Models
• A New Formation Scenario for the Milky Way Cluster NGC2419
• Signatures of star streams in the phase space distribution of nearby halo stars
• The mass loss process in dwarf galaxies from 3D hydrodynamical simulations: the role of dark matter and starbursts
• Four-hundred Very Metal-poor Stars Studied with LAMOST and Subaru. III. Dynamically Tagged Groups and Chemodynamical Properties
• New views of the distant stellar halo
• Metallicity and Kinematics of the Galactic halo from the LAMOST sample stars
• Extending the Chemical Reach of the H3 Survey: Detailed Abundances of the Dwarf-galaxy Stellar Stream Wukong/LMS-1
• Weighing the Galactic dark matter halo: a lower mass limit from the fastest halo star known
• A Halo Substructure in Gaia Data Release 1
• Exploring the interaction between the MW and LMC with a large sample of blue horizontal branch stars from the DESI survey
• Physical characterization of recently discovered globular clusters in the Sagittarius dwarf spheroidal galaxy II. Metallicities, ages and luminosities
• The Pristine survey XVIII: C-19: Tidal debris of a dark matter-dominated globular cluster?
• HST resolves stars in a tiny body falling on the dwarf galaxy DDO 68
• Tidal features of classical Milky Way satellites in a $\Lambda$CDM universe
• A Spatial Characterization of the Sagittarius Dwarf Galaxy Tidal Tails
• Probing the Halo From the Solar Vicinity to the Outer Galaxy: Connecting Stars in Local Velocity Structures to Large-Scale Clouds
• Red Clump stars in the Bootes III stellar system
• On the relevance of chaos for halo stars in the solar neighbourhood II
• Dissecting galaxy formation models with Sensitivity Analysis -- A new approach to constrain the Milky Way formation history
• Extragalactic Stellar Tidal Streams in the Dark Energy Survey
• On the fraction of dark matter in charged massive particles (CHAMPs)
• Constraints on the Galactic Inner Halo Assembly History from the Age Gradient of Blue Horizontal-branch Stars
• An Orphan No Longer? Detection of the Southern Orphan Stream and a Candidate Progenitor
• Kinematics of Stars in Kapteyn Selected Area 71: Sampling the Monoceros and Sagittarius Tidal Streams
• The Size and Shape of the Milky Way Disk and Halo from M-type Brown Dwarfs in the BoRG Survey
• Typhon: a polar stream from the outer halo raining through the Solar neighborhood
• Red Runaways: Hypervelocity Stars, Hills Ejecta and Other Outliers in the F-M Star Regime
• Cool carbon stars in the halo: new very red or distant objects
• Eight more low luminosity globular clusters in the Sagittarius dwarf galaxy
• Kinematics in Kapteyn's Selected Area 76: Orbital Motions Within the Highly Substructured Anticenter Stream
• Improved photometry of SDSS crowded field images: Structure and dark matter content in the dwarf spheroidal galaxy Leo I
• The stellar metallicity distribution of the Milky Way from the BATC survey
• Photometric Metallicity Calibration with SDSS and SCUSS and its Application to distant stars in the South Galactic Cap
• The Galactic thin and thick disk
• Using Artificial Neural Networks to Constrain the Halo Baryon Fraction during Reionization
• The Next Generation Virgo Cluster Survey. XIX. Tomography of Milky Way Substructures in the NGVS Footprint
• A lower limit on the dark particle mass from dSphs
• Ultra-deep Imaging: Structure of Disks and Haloes
• Potential Black Hole Seeding of the Spiral Galaxy NGC 4424 via an Infalling Star Cluster
• Dependence of Galactic Halo Kinematics on the Adopted Galactic Potential
• The Extended Disk Galaxy Exploration Science Survey: Description and Surface Brightness Profile Properties
• Exploring the chemodynamics of metal-poor stellar populations
• The Dragonfly Edge-on Galaxies Survey: Shaping the outer disc of NGC 4565 via accretion
• K-band Imaging of strong CaII-absorber host galaxies at z~1
• F Turnoff Distribution in the Galactic Halo Using Globular Clusters as Proxies
• The Photo-Astrometric Vertical Tracer Density of the Milky Way II: Results from Gaia
• Finding $r$-II sibling stars in the Milky Way with the Greedy Optimistic Clustering algorithm
• Main Sequence Star Populations in the Virgo Overdensity Region
• Member stars of the GD1 tidal stream from the SDSS, LAMOST and Gaia surveys
• Simulating Globular Clusters in Dark Matter Sub-Halos
• The merger history, AGN and dwarf galaxies of Hickson Compact Group 59
• A search for stellar tidal streams around Milky Way analogues from the SAGA sample
• A giant thin stellar stream in the Coma Galaxy Cluster
• Assembly of the outer Galactic stellar halo in the hierarchical model
• Stellar Over-densities in the Outer Halo of the Milky Way
• Dynamical inference from a kinematic snapshot: The force law in the Solar System
• Tails from the Orphanage
• A Sagittarius-Induced Origin for the Monoceros Ring
• The Age and Metallicity of the Bootes I System
• The elusive tidal tails of the Milky Way globular cluster NGC 7099
• The Rich Lack Close Neighbours: The Dependence of Blue-Straggler Fraction on Metallicity
• Extra-tidal star candidates in globular clusters of the Sagittarius dwarf spheroidal galaxy
• Metallicities and ages of stellar populations at a high Galactic latitude field
• NGC 147, NGC 185 and CassII: a genetic approach to orbital properties, star formation and tidal debris
• The Dark Matter Halo of M54
• Stellar substructures in the solar neighbourhood. I. Kinematic group 3 in the Geneva-Copenhagen survey
• Robust Clustering of the Local Milky Way Stellar Kinematic Substructures with Gaia eDR3
• A survey for dwarf galaxy remnants around fourteen globular clusters in the outer halo
• The Milky Way Revealed by Variable Stars I: Sample Selection of RR Lyrae stars, and Evidence for the Merger History
• Astrophysics in 2006
• On the Hunt for the Origins of the Orphan--Chenab Stream: Detailed Element Abundances with APOGEE and Gaia
• Identifying High Metallicity M Giants at Intragroup Distances with SDSS
• The Dark Matter Tidal Stripping History of the Sagittarius Core with N-body simulations
• The Stellar Halo and Tidal Streams of Messier 63
• The disruption of the low-mass globular cluster E3
• Tidal stripping stellar substructures around four metal-poor globular clusters in the Galactic bulge
• Hidden deep in the halo: selection of a reduced proper motion halo catalogue and mining retrograde streams in the velocity space
• The 300km/s stellar stream near Segue 1: Insights From high-resolution spectroscopy of its brightest star
• Galaxy archaeology for wet mergers: Globular cluster age distributions in the Milky Way and nearby galaxies
• Tidal debris from Omega Centauri discovered with unsupervised machine learning
• The Void in the Sculptor Group Spiral Galaxy NGC 247
• A Cold Stellar Stream in Pegasus
• Extragalactic Stellar Tidal Streams: Observations meet Simulation
• Jeans that fit: weighing the mass of the Milky Way analogues in the $\Lambda \mathrm{CDM}$ universe
• No sign (yet) of intergalactic globular clusters in the Local Group
• Auriga Streams I: disrupting satellites surrounding Milky Way-mass haloes at multiple resolutions
• Formation of Transitional cE/UCD Galaxies through Massive/Dwarf Disc Galaxy Mergers
• Tidal features and disc thicknesses of edge-on galaxies in the SDSS Stripe 82
• An application of Galactic parallax: the distance to the tidal stream GD-1
• Chemical Abundances of the Typhon Stellar Stream
• A Megacam Survey of Outer Halo Satellites. IV. Two foreground populations possibly associated with the Monoceros substructure in the direction of NGC2419 and Koposov2
• Uniform Modelling of the Stellar Density of Thirteen Tidal Streams within the Galactic Halo
• Europium enrichment and hierarchical formation of the Galactic halo
• More pieces of the puzzle: Chemistry and substructures in the Galactic thick disk
• Are symmetric tidal streams possible with long-range dark-matter forces?
• On the Adromeda to Milky Way mass-ratio
• Euclid: Early Release Observations of diffuse stellar structures and globular clusters as probes of the mass assembly of galaxies in the Dorado group
• Discy dwarf disruption and the shape of the Galactic halo
• Stellar Tidal Streams in External Galaxies
• Globular Clusters Lost by the Sagittarius Dwarf Spheroidal Galaxy
• L-GALAXIES 2020: The formation and chemical evolution of stellar haloes in Milky Way Analogues and galaxy clusters
• Leaves on trees: identifying halo stars with extreme gradient boosted trees
• Identifying Star Streams in the Milky Way Halo
• Low Surface Brightness structures from annotated deep CFHT images: effects of the host galaxy's properties and environment
• The Ophiuchus stream progenitor: a new type of globular cluster and its possible Sagittarius connection
• Evidence That Hydra I is a Tidally Disrupting Milky Way Dwarf Galaxy
• Faint Stars in a Faint Galaxy: I. Ultra Deep Photometry of the Boötes I Ultra Faint Dwarf Galaxy
• Local Group(s)
• Time evolution of gaps in stellar streams in axisymmetric Stäckel potentials
• The Chemodynamics of the Stellar Populations in M31 from APOGEE Integrated Light Spectroscopy
• Stellar substructures in the solar neighbourhood IV. Kinematic Group 1 in the Geneva-Copenhagen survey
• Characterizing the SHARDS of Disrupted Milky Way Satellites with LAMOST
• Two substructures in the nearby stellar halo found in Gaia and RAVE
• Stellar Streams in Chameleon Gravity
• A Pristine-UNIONS view on the Galaxy: Kinematics of the distant spur feature of the Sagittarius stream traced by Blue Horizontal Branch stars
• Weakly-Supervised Anomaly Detection in the Milky Way
• The Smallest Scale of Hierarchy Survey (SSH). I. Survey Description
• The Smallest Scale of Hierarchy Survey (SSH). II. Extended star formation and bar-like features in the dwarf galaxy NGC 3741: recent merger or ongoing gas accretion?
• Resolved Stellar Populations as Tracers of Outskirts
• Mapping the Distant and Metal-Poor Milky Way with SDSS-V
• Substructure at High Speed I: Inferring the Escape Velocity in the Presence of Kinematic Substructure
• Following the tidal trail: a history of modeling the Magellanic Stream
• Substructure in the Globular Cluster Populations of the Virgo Cluster Elliptical Galaxies M84 and M86
• Are the double-mode bulge RR Lyrae stars with identical period-ratios the relic of a disrupted stellar system?
• The kinematics of globular clusters systems in the outer halos of the Aquarius simulations
• A tangle of stellar streams in the north Galactic cap
• A revised view of the Canis Major stellar overdensity with DECam and Gaia: new evidence of a stellar warp of blue stars
• Chemodynamically Characterizing the Jhelum Stellar Stream with APOGEE-2
• Candidate members of the Pal 5, GD-1, Cetus Polar, and Orphan tidal stellar halo streams from Sdss DR9, Lamost DR3 and APOGEE catalogues
• STRRINGS: STReams in Residual Images of Nearby GalaxieS
• From order to chaos: the blurred out metallicity gradient of the Gaia-Enceladus/Sausage progenitor
• Magnesium isotope ratios in Milky Way and dwarf galaxy stars
• Nearby stellar substructures in the Galactic halo from DESI Milky Way Survey Year 1 Data Release
• Estimate of the Mass and Radial Profile of the Orphan-Chenab Stream's Dwarf Galaxy Progenitor Using MilkyWay@home
• SiO Maser Survey towards off-plane O-rich AGBs around the orbital plane of the Sagittarius Stellar Stream
• Are the Ultra-Faint Dwarf Galaxies Just Cusps?
• CADIS has seen the Virgo overdensity and parts of the Monoceros and `Orphan' streams in retrospect
• A Vertically Orientated Dark Matter Halo Marks a Flip of the Galactic Disk
• Introduction to Tidal Streams
• An Orbit Fit to Likely Hermus Stream Stars
• Fitting the density substructure of the stellar halo with MilkyWay@home
• Discovery of the shell structure via break radii in the outer halo of the Milky Way
• Building Blocks of the Milky Way's Accreted Spheroid
• Photometric Metallicities in Bootes I
• The Gaia-ESO Survey astrophysical calibration
• The Chemodynamical Nature of the Triangulum-Andromeda Overdensity
• A fork in the Sagittarius trailing debris
• Modeling Tidal Streams and Tidal Tails around Galaxies Using Deep Wendelstein Imaging Data
• Constraints on Galaxy Structure and Evolution from the Light of Nearby Systems
• A pilot survey of stellar tidal streams in nearby spiral galaxies
• Semi-analytic modelling of the europium production by neutron star mergers in the halo of the Milky Way
• MilkyWay@home: Harnessing volunteer computers to constrain dark matter in the Milky Way
• Architecture of the Andromeda: a quantitative analysis of clustering in the inner stellar halo
• Inferring the dynamics of stellar streams via distance gradients
• Exploring the Sagittarius stream with RR Lyrae Stars from Gaia Data Release 3
• Inferring the density and membership of stellar streams with flexible models: The GD-1 stream in Gaia Data Release 3
• Intermediate Mass Ratio Inspirals in Milky Way Galaxies
• Auriga Streams II: orbital properties of tidally disrupting satellites of Milky Way-mass galaxies
• Globular clusters as indicators of Galactic evolution
• Unveiling Galactic substructures with M Giant stars: A kinematic and chemical study based on LAMOST DR9, Gaia DR3 and APOGEE DR17
• Complexity in small-scale dwarf spheroidal galaxies
• LAMOST 1: A Disrupted Satellite in the Constellation Draco
• Formation and Evolution of sub-structures in tidal tails: Spherical dark matter haloes
• Stellar halo striations from assumptions of axisymmetry
• SDSS, LSST, and Gaia: Lessons and Synergies
• Water Maser Survey towards off-plane O-rich AGBs around the orbital plane of the Sagittarius Stellar Stream
• Statistical Properties of Blue Horizontal Branch Stars in the Spheroid: Detection of a Moving Group approximately 50 kpc from the Sun
• The Nature of Dark Matter
• Using two point correlation functions to understand the assembly histories of Milky Way-like galaxies
• New tidal debris nearby the Sagittarius leading tail from the LAMOST DR2 M giant stars
• What will Gaia tell us about the Galactic disk?
• Finding RR Lyrae Stars with SkyMapper: an Observational Test
• The mass and redshift dependence of halo star clustering
• Rediscovering the origins of the stellar halo with chemical tagging
• Galactoseismology in the GAIA Era
• The visitor from an ancient galaxy: A planetary companion around an old, metal-poor red horizontal branch star
• A search for stellar structures around nine outer halo globular clusters in the Milky Way
• Substructures in Minor Mergers' Tidal Streams
• Is the Sgr dSph a dark matter dominated system?
• COSTA: the COld STream finder Algorithm. Searching for kinematical substructures in the phase space of discrete tracers
• From the Fire: A Deeper Look at the Phoenix Stream
• Globular Clusters in the Sagittarius stream. Revising members and candidates with Gaia DR2
• No Stream Left Unscathed: The imprint of a host galaxy
• Revisiting a disky origin for the faint branch of the Sagittarius stellar stream
• Globular clusters of the Gaia Enceladus/Sausage -- I. Orbital and dynamical evolution on cosmological timescales
• Understanding the Galaxy
• The chemodynamical memory of a major merger in a NIHAO-UHD Milky Way analogue -- I. A golden thread through time and space
• Demonstration of Plate Analysis, an algorithm for precise relative astrometry
• The Future of Stellar Populations Studies in the Milky Way and the Local Group