Stellar tidal streams around nearby spiral galaxies with deep imaging from amateur telescopes
arXiv:2504.02071 · doi:10.1051/0004-6361/202554980
Abstract
Tidal interactions between massive galaxies and their satellites are fundamental processes in a Universe with L-Cold Dark Matter cosmology, redistributing material into faint features that preserve records of past galactic interactions. While stellar streams in the Local Group impressively demonstrate satellite disruption, they do not constitute a statistically significant sample. Constructing a substantial catalog of stellar streams beyond the Local Group remains challenging due to the difficulties in obtaining deep, wide-field images of galaxies. Despite their potential to illuminate dark matter distribution and galaxy formation processes, stellar streams remain underutilized as cosmological probes. The Stellar Tidal Stream Survey (STSS) addresses this observational gap by leveraging amateur telescopes to obtain deep, scientific-grade images of galactic outskirts, capable of building a more statistically meaningful sample of stellar streams. Over the last decade, the STSS has acquired deep (up to surface brightness limit 28.3 mag/arcsec^2 in the r-band), wide-field images of 15 nearby Milky Way analog galaxies using a network of robotic amateur telescopes, avoiding the issues associated with "mosaicing" smaller images taken with a professional telescope. Our survey has revealed a diverse range of previously unreported faint features related to dwarf satellite accretion - including stellar streams, shells, and umbrella-like structures. We discover an ultra-diffuse galaxy (NGC150-UDG1), which shows hints of tidal tails. The STSS demonstrates the suitability of modern amateur telescopes to detect and study faint, diffuse structures in large fields around nearby spiral galaxies. Their economic and accessibility advantages enable larger samples with deep imaging, essential for testing galaxy formation models and constraining the properties of minor merger events in the local Universe.
arXiv comment21 pages, 16 figures, 5 tables. Full resolution version available in this link: https://aipastroimaging.com/wp-content/uploads/full-resolution/STREAMS_AMATEUR_TELESCOPES_HD.pdf
References in corpus (101)
- Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
- The Sloan Digital Sky Survey: Technical Summary
- A Universal Density Profile from Hierarchical Clustering
- Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
- Herschel Space Observatory - An ESA facility for far-infrared and submillimetre astronomy
- Detailed Structural Decomposition of Galaxy Images
- Overview of the DESI Legacy Imaging Surveys
- Planck 2018 results. I. Overview and the cosmological legacy of Planck
- The new world atlas of artificial night sky brightness
- 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
- The Dark Energy Survey: more than dark energy - an overview
- The Pan-STARRS1 Photometric System
- Galactic stellar haloes in the CDM model
- Euclid. I. Overview of the Euclid mission
- Forty-Seven Milky Way-Sized, Extremely Diffuse Galaxies in the Coma Cluster
- Second Data Release of the Hyper Suprime-Cam Subaru Strategic Program
- IRIS: A new generation of IRAS maps
- Great Circle tidal streams: evidence for a nearly spherical massive dark halo around the Milky Way
- Tracing Galaxy Formation with Stellar Halos II: Relating Substructure in Phase- and Abundance-Space to Accretion Histories
- SkyMapper Southern Survey: First Data Release (DR1)
- Stellar Tidal Streams in Spiral Galaxies of the Local Volume: A Pilot Survey with Modest Aperture Telescopes
- Third Data Release of the Hyper Suprime-Cam Subaru Strategic Program
- Photometric Response Functions of the SDSS Imager
- The Frequency of Tidal Features Associated with Nearby Luminous Elliptical Galaxies from a Statistically Complete Sample
- SkyMapper Southern Survey: Second Data Release (DR2)
- Galaxy growth in the concordance CDM cosmology
- Ultra Low Surface Brightness Imaging with the Dragonfly Telephoto Array
- Galactic accretion and the outer structure of galaxies in the CDM model
- The Westerbork Hydrogen Accretion in Local Galaxies (HALOGAS) Survey I. Survey Description and Pilot Observations
- The Burrell Schmidt Deep Virgo Survey: Tidal Debris, Galaxy Halos, and Diffuse Intracluster Light in the Virgo Cluster
- Noise Based Detection and Segmentation of Nebulous Objects
- The ghost of a dwarf galaxy: fossils of the hierarchical formation of the nearby spiral galaxy NGC 5907
- Dwarfs Gobbling Dwarfs: A Stellar Tidal Stream Around NGC 4449 and Hierarchical Galaxy Formation on Small Scales
- Stellar structures, molecular gas, and star formation across the PHANGS sample of nearby galaxies
- The formation of spiral arms and rings in barred galaxies
- Ring structure and warp of NGC5907 -- Interaction with dwarf galaxies
- The IAC Stripe 82 Legacy Project: a wide-area survey for faint surface brightness astronomy
- The Dragonfly Nearby Galaxies Survey. I. Substantial variation in the diffuse stellar halos around spiral galaxies
- The Formation of Ultra-Diffuse Galaxies in Clusters
- First results from the Dragonfly Telephoto Array: the apparent lack of a stellar halo in the massive spiral galaxy M101
- Galactic cirri in deep optical imaging
- Forensics of Subhalo-Stream Encounters: The Three Phases of Gap Growth
- Interpreting Debris from Satellite Disruption In External Galaxies
- DGSAT: Dwarf Galaxy Survey with Amateur Telescopes I. Discovery of low surface brightness systems around nearby spiral galaxies
- The Outer Disks of Early-Type Galaxies. II. Surface-Brightness Profiles of Unbarred Galaxies and Trends with Hubble Type
- The Planck High Frequency Instrument, a 3rd generation CMB experiment, and a full sky submillimeter survey
- Tidal streams in the Galactic halo: Evidence for the Sagittarius northern stream or traces of a new nearby dwarf galaxy
- Low Surface Brightness Imaging of the Magellanic System: Imprints of Tidal Interactions between the Clouds in the Stellar Periphery
- Probing the merger history of red early-type galaxies with their faint stellar substructures
- Hidden depths in the local Universe: The Stellar Stream Legacy Survey
- Evidence for Ultra-Diffuse Galaxy `Formation' Through Galaxy Interactions
- 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
- Tidal streams around galaxies in the SDSS DR7 archive
- Introducing the LBT Imaging of Galactic Halos and Tidal Structures (LIGHTS) survey. A preview of the low surface brightness Universe to be unveiled by LSST
- Discovery of a stellar tidal stream around the Whale galaxy, NGC 4631
- The Next Generation Virgo Cluster Survey. IV. NGC 4216: A Bombarded Spiral in the Virgo Cluster
- Scientific CMOS sensors in Astronomy: IMX455 and IMX411
- Diffuse far-infrared and ultraviolet emission in the NGC4435/4438 system: tidal stream or Galactic cirrus?
- The complete census of optically selected AGNs in the Coma Supercluster: the dependence of AGN activity on the local environment
- Euclid: Early Release Observations -- Programme overview and pipeline for compact- and diffuse-emission photometry
- The Extremely Large Telescope
- The Halos and Environments of Nearby Galaxies (HERON) I: Imaging, Sample Characteristics, and Envelope Diameters
- An Excess of Globular Clusters in UDGs Formed Through Tidal Heating
- Morphology and enhanced star formation in a Cartwheel-like ring galaxy
- Streams on FIRE: Populations of Detectable Stellar Streams in the Milky Way and FIRE
- Galaxy Disruption in a Halo of Dark Matter
- Revisiting Stephan's Quintet with deep optical images
- A Petal of the Sunflower: Photometry of the Stellar Tidal Stream in the Halo of Messier 63 (NGC 5055)
- Extremely massive disc galaxies in the nearby Universe form through gas-rich minor mergers
- Euclid: Early Release Observations -- Deep anatomy of nearby galaxies
- The Star Cluster Population of the Collisional Ring Galaxy NGC 922
- HALOGAS observations of NGC 4414: fountains, interaction, and ram pressure
- NGC922 - A new drop-through ring galaxy
- DGSAT: Dwarf Galaxy Survey with Amateur Telescopes II. A catalogue of isolated nearby edge-on disk galaxies and the discovery of new low surface brightness systems
- The Halos and Environments of Nearby Galaxies (HERON) II: The outer structure of edge-on galaxies
- Resolved stellar streams around NGC4631 from a Subaru/Hyper Suprime-Cam survey
- Euclid: Early Release Observations -- Globular clusters in the Fornax galaxy cluster, from dwarf galaxies to the intracluster field
- A giant umbrella-like stellar stream around the tidal ring galaxy NGC 922
- A Multi-wavelength analysis of M81: insight on the nature of Arp's loop
- A feather on the hat: Tracing the giant stellar stream around the Sombrero galaxy
- Satellite accretion in action: a tidally disrupting dwarf spheroidal around the nearby spiral galaxy NGC 253
- Strategies for optimal sky subtraction in the low surface brightness regime
- Structure and Star Formation in NGC 925
- Evidence for a Large Stellar Bar in the LSB Galaxy UGC 7321
- Extragalactic Stellar Tidal Streams in the Dark Energy Survey
- A Tale of a Tail: A Tidally-Disrupting Ultra-Diffuse Galaxy in the M81 Group
- A search for stellar tidal streams around Milky Way analogues from the SAGA sample
- A giant thin stellar stream in the Coma Galaxy Cluster
- Cannibalization and Rebirth in the NGC5387 System. I. The Stellar Stream & Star Forming Region
- A Recipe for Unbiased Background Modeling in Deep Wide-Field Astronomical Images
- Origins of the Evil Eye: M64's Stellar Halo Reveals the Recent Accretion of an SMC-mass Satellite
- An HI study of the collisional ring galaxy NGC 922
- On the Formation of Elliptical Rings in Disk Galaxies
- Extragalactic Stellar Tidal Streams: Observations meet Simulation
- Euclid: Early Release Observations of diffuse stellar structures and globular clusters as probes of the mass assembly of galaxies in the Dorado group
- Low Surface Brightness structures from annotated deep CFHT images: effects of the host galaxy's properties and environment
- The quest for hot gas in the halo of NGC 1511
- Star Formation in Outer Rings of S0 galaxies. V. UGC 4599 -- an S0 with gas probably accreted from a filament