Hidden depths in the local Universe: The Stellar Stream Legacy Survey

Abstract

Mergers and tidal interactions between massive galaxies and their dwarf satellites are a fundamental prediction of the Lambda-Cold Dark Matter cosmology. These events are thought to provide important observational diagnostics of nonlinear structure formation. Stellar streams in the Milky Way and Andromeda are spectacular evidence for ongoing satellite disruption. However, constructing a statistically meaningful sample of tidal streams beyond the Local Group has proven a daunting observational challenge, and the full potential for deepening our understanding of galaxy assembly using stellar streams has yet to be realised. Here we introduce the Stellar Stream Legacy Survey, a systematic imaging survey of tidal features associated with dwarf galaxy accretion around a sample of ~3100 nearby galaxies within z~0.02, including about 940 Milky Way analogues. Our survey exploits public deep imaging data from the DESI Legacy Imaging Surveys, which reach surface brightness as faint as ~29 mag/arcsec^2 in the r band. As a proof of concept of our survey, we report the detection and broad-band photometry of 24 new stellar streams in the local Universe. We discuss how these observations can yield new constraints on galaxy formation theory through comparison to mock observations from cosmological galaxy simulations. These tests will probe the present-day mass assembly rate of galaxies, the stellar populations and orbits of satellites, the growth of stellar halos and the resilience of stellar disks to satellite bombardment.

arXiv commentAccepted in Astronomy & Astrophysics, 25 pages, 17 figures, 3 tables

References in corpus (150)

• The Sloan Digital Sky Survey: Technical Summary
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• The Seventh Data Release of the Sloan Digital Sky Survey
• LSST: from Science Drivers to Reference Design and Anticipated Data Products
• Deep Visual Domain Adaptation: A Survey
• The Average Star Formation Histories of Galaxies in Dark Matter Halos from z=0-8
• Simulating Galaxy Formation with the IllustrisTNG Model
• The observed properties of dwarf galaxies in and around the Local Group
• Overview of the DESI Legacy Imaging Surveys
• First results from the IllustrisTNG simulations: matter and galaxy clustering
• First results from the IllustrisTNG simulations: the stellar mass content of groups and clusters of galaxies
• First results from the IllustrisTNG simulations: the galaxy color bimodality
• galpy: A Python Library for Galactic Dynamics
• Galactic star formation and accretion histories from matching galaxies to dark matter haloes
• The Milky Way Tomography with SDSS: I. Stellar Number Density Distribution
• Properties of galaxies reproduced by a hydrodynamic simulation
• First results from the IllustrisTNG simulations: A tale of two elements -- chemical evolution of magnesium and europium
• Simulating galaxy formation with black hole driven thermal and kinetic feedback
• The Multi-Object, Fiber-Fed Spectrographs for SDSS and the Baryon Oscillation Spectroscopic Survey
• Introducing the Illustris Project: the evolution of galaxy populations across cosmic time
• A 2MASS All-Sky View of the Sagittarius Dwarf Galaxy: I. Morphology of the Sagittarius Core and Tidal Arms
• The Dark Energy Camera
• Tracing Galaxy Formation with Stellar Halos I: Methods
• First Results from the TNG50 Simulation: Galactic outflows driven by supernovae and black hole feedback
• First Results from the TNG50 Simulation: The evolution of stellar and gaseous disks across cosmic time
• The Field of Streams: Sagittarius and its Siblings
• HyperLEDA. III. The catalogue of extragalactic distances
• The SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Overview and Early Data
• Planck 2013 results. XI. All-sky model of thermal dust emission
• The Universal Stellar Mass-Stellar Metallicity Relation for Dwarf Galaxies
• The Ghost of Sagittarius and Lumps in the Halo of the Milky Way
• The 2MASS Redshift Survey - Description and Data Release
• The remnants of galaxy formation from a panoramic survey of the region around M31
• First Data Release of the Hyper Suprime-Cam Subaru Strategic Program
• Galactic stellar haloes in the CDM model
• The Sagittarius Dwarf Galaxy: a Model for Evolution in a Triaxial Milky Way Halo
• The Dark Energy Survey Data Release 1
• IRIS: A new generation of IRAS maps
• The stellar mass assembly of galaxies in the Illustris simulation: growth by mergers and the spatial distribution of accreted stars
• Formation of a spiral galaxy in a major merger
• Galaxy Merger Morphologies and Time-Scales from Simulations of Equal-Mass Gas-Rich Disc Mergers
• A unified multi-wavelength model of galaxy formation
• Constraining the Milky Way potential with a 6-D phase-space map of the GD-1 stellar stream
• The Haunted Halos of Andromeda and Triangulum: A panorama of galaxy formation in action
• Tracing Galaxy Formation with Stellar Halos II: Relating Substructure in Phase- and Abundance-Space to Accretion Histories
• Stellar Tidal Streams in Spiral Galaxies of the Local Volume: A Pilot Survey with Modest Aperture Telescopes
• Improving galaxy morphologies for SDSS with Deep Learning
• The Atlas3D project -- XXIX. The new look of early-type galaxies and surrounding fields disclosed by extremely deep optical images
• The total mass of the Large Magellanic Cloud from its perturbation on the Orphan stream
• Not so lumpy after all: modeling the depletion of dark matter subhalos by Milky Way-like galaxies
• The HST eXtreme Deep Field XDF: Combining all ACS and WFC3/IR Data on the HUDF Region into the Deepest Field Ever
• Stellar Streams Discovered in the Dark Energy Survey
• The AGORA High-Resolution Galaxy Simulations Comparison Project
• The Frequency of Tidal Features Associated with Nearby Luminous Elliptical Galaxies from a Statistically Complete Sample
• The SAGA Survey: I. Satellite Galaxy Populations Around Eight Milky Way Analogs
• "Skinny Milky Way, Please", says Sagittarius
• The Local Group and other neighboring galaxy groups
• The Influence of Sagittarius and the Large Magellanic Cloud on the Milky Way Galaxy
• Vertical density waves in the Milky Way disc induced by the Sagittarius Dwarf Galaxy
• The extended halo of Centaurus A: uncovering satellites, streams, and substructures
• The Galaxy and its stellar halo: insights on their formation from a hybrid cosmological approach
• Galactic accretion and the outer structure of galaxies in the CDM model
• Galaxy Morphology and Star Formation in the Illustris Simulation at z=0
• Globular Cluster Streams as Galactic High-Precision Scales - The Poster Child Palomar 5
• A comprehensive model for the Monoceros tidal stream
• The Burrell Schmidt Deep Virgo Survey: Tidal Debris, Galaxy Halos, and Diffuse Intracluster Light in the Virgo Cluster
• The SAGA Survey. II. Building a Statistical Sample of Satellite Systems around Milky Way-like Galaxies
• Finding Strong Gravitational Lenses in the Kilo Degree Survey with Convolutional Neural Networks
• Exploring Halo Substructure with Giant Stars: A diffuse star cloud or tidal debris around the Milky Way in Triangulum-Andromeda
• The large-scale structure of the halo of the Andromeda galaxy II. Hierarchical structure in the Pan-Andromeda Archaeological Survey
• Building Late-Type Spiral Galaxies by In-Situ and Ex-Situ Star Formation
• The shape of the inner Milky Way halo from observations of the Pal 5 and GD-1 stellar streams
• Beyond 31 mag/arcsec^2: the low surface brightness frontier with the largest optical telescopes
• Noise Based Detection and Segmentation of Nebulous Objects
• Halo Mass and Assembly History Exposed in the Faint Outskirts: the Stellar and Dark Matter Haloes of Illustris Galaxies
• The ghost of a dwarf galaxy: fossils of the hierarchical formation of the nearby spiral galaxy NGC 5907
• Cold Dark Matter Substructure and Galactic Disks II: Dynamical Effects of Hierarchical Satellite Accretion
• Inferring the Andromeda Galaxy's mass from its giant southern stream with Bayesian simulation sampling
• The total stellar halo mass of the Milky Way
• Substructure in Tidal Streams; Tributaries in the Anticenter Ring
• The AGORA High-Resolution Galaxy Simulations Comparison Project. II: Isolated Disk Test
• The population of Milky Way satellites in the LambdaCDM cosmology
• The Hubble flow around the Local Group
• Synthetic Galaxy Images and Spectra from the Illustris Simulation
• Using transfer learning to detect galaxy mergers
• A sharper view of Pal 5's tails: Discovery of stream perturbations with a novel non-parametric technique
• The IAC Stripe 82 Legacy Project: a wide-area survey for faint surface brightness astronomy
• Effect of galaxy mergers on star formation rates
• Constraining the Milky Way Halo Potential with the GD-1 stellar stream
• A Synoptic Map of Halo Substructures from the Pan-STARRS1 3π Survey
• Galactic cirri in deep optical imaging
• Interpreting Debris from Satellite Disruption In External Galaxies
• Generation of mock tidal streams
• The Copernicus Complexio: a high-resolution view of the small-scale Universe
• A re-interpretation of the Triangulum-Andromeda stellar clouds: a population of halo stars kicked out of the Galactic disk
• Formation and Incidence of Shell Galaxies in the Illustris Simulation
• Tidal debris morphology and the orbits of satellite galaxies
• Tracing the Outer Structure of the Sagittarius Dwarf Galaxy: Detections at Angular Distances Between 10 and 34 Degrees
• Milky Way Mass and Potential Recovery Using Tidal Streams in a Realistic Halo
• Tidal streams in the Galactic halo: Evidence for the Sagittarius northern stream or traces of a new nearby dwarf galaxy
• A fully cosmological model of a Monoceros-like ring
• On feathers, bifurcations and shells: the dynamics of tidal streams across the mass scale
• A panoramic view of the Milky Way analogue NGC 891
• Identifying Galaxy Mergers in Observations and Simulations with Deep Learning
• Tidal Stream Morphology as an Indicator of Dark Matter Halo Geometry: the Case of Palomar 5
• Convolutional neural network identification of galaxy post-mergers in UNIONS using IllustrisTNG
• Stream-orbit misalignment II: A new algorithm to constrain the Galactic potential
• Chaotic Dispersal of Tidal Debris
• The mid-life crisis of the Milky Way and M31
• The Complex Structure of Stars in the Outer Galactic Disk as revealed by Pan-STARRS1
• unWISE Coadds: The Five-year Data Set
• Deep learning Approach for Classifying, Detecting and Predicting Photometric Redshifts of Quasars in the Sloan Digital Sky Survey Stripe 82
• Stray, swing and scatter: angular momentum evolution of orbits and streams in aspherical potentials
• Tidal Features at 0.05<z<0.45 in the Hyper Suprime-Cam Subaru Strategic Program: Properties and Formation Channels
• Identification of Low Surface Brightness Tidal Features in Galaxies Using Convolutional Neural Networks
• The effect of a disc on the population of cuspy and cored dark matter substructures in Milky Way-like galaxies
• The Origin of Faint Tidal Features Around Galaxies in the RESOLVE Survey
• Systematic search for tidal features around nearby galaxies: I. Enhanced SDSS imaging of the Local Volume
• The formation of shell galaxies similar to NGC 7600 in the cold dark matter cosmogony
• Bending Waves in the Milky Way's disc from halo substructure
• Discovery of a stellar tidal stream around the Whale galaxy, NGC 4631
• Tidal debris in elliptical galaxies as tracers of mergers with disks
• Using Convolutional Neural Networks to identify Gravitational Lenses in Astronomical images
• What Sets the Sizes of the Faintest Galaxies?
• Characterization of Low Surface Brightness structures in annotated deep images
• Convergence of Lobatto-type Runge-Kutta methods for partitioned differential-algebraic systems of index 2
• The missing light of the Hubble Ultra Deep Field
• Chemo-dynamical properties of the Anticenter Stream: a surviving disc fossil from a past satellite interaction
• The Halos and Environments of Nearby Galaxies (HERON) I: Imaging, Sample Characteristics, and Envelope Diameters
• Pushing automated morphological classifications to their limits with the Dark Energy Survey
• Euclid preparation: XVI. Exploring the ultra low-surface brightness Universe with Euclid/VIS
• A Halo Expansion (HEX) Technique for Approximating Simulated Dark Matter Haloes
• Star Formation and AGN Activity in Interacting Galaxies: A Near-UV Perspective
• VEGAS: A VST Early-type GAlaxy Survey.VI. The diffuse light in HCG 86 from the ultra-deep VEGAS images
• The Third Data Release of the Beijing-Arizona Sky Survey
• Tidal destruction in a low mass galaxy environment: the discovery of tidal tails around DDO 44
• Stellar disc streams as probes of the Galactic potential and satellite impacts
• Towards a consistent framework of comparing galaxy mergers in observations and simulations
• Detecting Thin Stellar Streams in External Galaxies: Resolved Stars & Integrated Light
• Separatrix Divergence of Stellar Streams in Galactic Potentials
• A machine--vision method for automatic classification of stellar halo substructure
• Giant Galaxies, Dwarfs, and Debris Survey. I. Dwarf Galaxies and Tidal Features Around NGC 7331
• IRAC Near-Infrared Features in the Outer Parts of S4G Galaxies
• The Effect of Minor and Major Mergers on the Evolution of Low Excitation Radio Galaxies
• Comparing semi-analytic particle tagging and hydrodynamical simulations of the Milky Way's stellar halo
• Galaxies with Shells in the Illustris Simulation: Metallicity Signatures
• The Dragonfly Edge-on Galaxies Survey: Shaping the outer disc of NGC 4565 via accretion
• Stellar Tidal Streams in External Galaxies
• Disc-Halo Interactions in ΛCDM

Cited by in corpus (43)

• Euclid. I. Overview of the Euclid mission
• Discovery and analysis of low-surface-brightness galaxies in the environment of NGC 1052
• Euclid: Early Release Observations -- The intracluster light and intracluster globular clusters of the Perseus cluster
• Euclid: Early Release Observations -- Deep anatomy of nearby galaxies
• The Hough Stream Spotter: A New Method for Detecting Linear Structure in Resolved Stars and Application to the Stellar Halo of M31
• Constraining the Gravitational Potential from the Projected Morphology of Extragalactic Tidal Streams
• The ALMA-CRISTAL survey. Discovery of a 15 kpc-long gas plume in a $z=4.54$ Lyman-$\alpha$ blob
• A stream come true: Connecting tidal tails, shells, streams, and planes with galaxy kinematics and formation history
• A co-rotating gas and satellite structure around the interacting galaxy pair NGC 4490/85
• Extragalactic Stellar Tidal Streams in the Dark Energy Survey
• Potential Black Hole Seeding of the Spiral Galaxy NGC 4424 via an Infalling Star Cluster
• The AMIGA sample of isolated galaxies. XIV. Disc breaks and interactions through ultra-deep optical imaging
• A giant thin stellar stream in the Coma Galaxy Cluster
• MHONGOOSE discovery of a gas-rich low-surface brightness galaxy in the Dorado Group
• A search for stellar tidal streams around Milky Way analogues from the SAGA sample
• Auriga Streams I: disrupting satellites surrounding Milky Way-mass haloes at multiple resolutions
• Prospects for Detecting Gaps in Globular Cluster Stellar Streams in External Galaxies with the Nancy Grace Roman Space Telescope
• Extragalactic Stellar Tidal Streams: Observations meet Simulation
• 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
• Galaxy shapes in Magneticum. I. Connecting stellar and dark matter shapes to dynamical and morphological galaxy properties and the large-scale structure
• Low Surface Brightness structures from annotated deep CFHT images: effects of the host galaxy's properties and environment
• Uncovering Tidal Treasures: Automated Classification of Faint Tidal Features in DECaLS Data
• Stellar tidal streams around nearby spiral galaxies with deep imaging from amateur telescopes
• STRRINGS: STReams in Residual Images of Nearby GalaxieS
• Simulations of the accreted stellar halos of low-mass field galaxies
• Rendezvous in CAVITY: Kinematics and gas properties of an isolated dwarf-dwarf merging pair in a cosmic void region
• Light and colour of cirrus, translucent and opaque dust in the high-latitude area of LDN 1642
• Modeling Tidal Streams and Tidal Tails around Galaxies Using Deep Wendelstein Imaging Data
• COUGS-DESI: A Catalog of Unusual Galaxies with Polar Structures in the DESI Legacy Imaging Surveys
• Accreted stars and stellar haloes of simulated galaxies in TNG50
• A stellar stream around the spiral galaxy Messier 61 in Rubin First Look imaging
• UGC 10043 in Depth: Dissecting the Polar Bulge and Subtle LSB Features
• Improving Physical Cosmology: An Empiricist's Assessment
• Tracing satellite planes in the Sculptor group: II. Discovery of five faint dwarf galaxies in the DESI Legacy Survey
• Ultra Diffuse Galaxies in clusters : the peculiar gas loss of VCC 1964
• Environmental Invariance of the Galaxy Size-Mass Relation
• Quantitative Morphology of Galactic Cirrus in Deep Optical Imaging
• Stellar streams around dwarf galaxies in the Local Universe
• Constraining the population of dark matter halo shapes using hierarchical inference with extragalactic stellar streams
• A Long Tidal Feature Extending from a Low-Redshift Galaxy Revealed in Rubin Data Preview 1 Imaging
• A Pearl in the Shell: an ultra-compact dwarf within the tidal debris surrounding spiral galaxy NGC 7531
• Tidal Structures Around Edge-On Galaxies in Deep Imaging Surveys