STELLAR TIDAL STREAMS IN SPIRAL GALAXIES OF THE LOCAL VOLUME: A PILOT SURVEY WITH MODEST APERTURE TELESCOPES

@article{MartinezDelgado2010STELLARTS,
  title={STELLAR TIDAL STREAMS IN SPIRAL GALAXIES OF THE LOCAL VOLUME: A PILOT SURVEY WITH MODEST APERTURE TELESCOPES},
  author={David Martinez-Delgado and R. Jay Gabany and Ken Crawford and Stefano Zibetti and Steven R. Majewski and Hans–Walter Rix and J. Fliri and Julio A. Carballo-Bello and Daniella C. Bardalez-Gagliuffi and Jorge Pe{\~n}arrubia and Taylor Steven Chonis and Barry F. Madore and Ignacio Trujillo and Mischa Schirmer and David A. McDavid},
  journal={The Astronomical Journal},
  year={2010},
  volume={140},
  pages={962 - 967}
}
Within the hierarchical framework for galaxy formation, minor merging and tidal interactions are expected to shape all large galaxies to the present day. As a consequence, most seemingly normal disk galaxies should be surrounded by spatially extended stellar “tidal features” of low surface brightness. As part of a pilot survey for such interaction signatures, we have carried out ultra deep, wide field imaging of eight isolated spiral galaxies in the Local Volume, with data taken at small (D = 0… 

A search for stellar tidal debris of defunct dwarf galaxies around globular clusters in the inner Galactic halo

In the hierarchical formation scenario in which the outer halo of the Milky Way is the result of the continuous accretion of low-mass galaxies, a fraction of the Galactic globular cluster system

Stellar Tidal Streams in External Galaxies

To place the highly substructured stellar halos of the Milky Way and M31 in a larger context of hierarchical galaxy formation, it is necessary to understand the prevalence and properties of tidal

GIANT GALAXIES, DWARFS, AND DEBRIS SURVEY. I. DWARF GALAXIES AND TIDAL FEATURES AROUND NGC 7331

The Giant GAlaxies, Dwarfs, and Debris Survey (GGADDS) concentrates on the nearby universe to study how galaxies have interacted in groups of different morphology, density, and richness. In these

The Origin of Faint Tidal Features around Galaxies in the RESOLVE Survey

We study tidal features around galaxies in the REsolved Spectroscopy Of a Local VolumE (RESOLVE) survey. Our sample consists of 1048 RESOLVE galaxies that overlap with the DECam Legacy Survey, which

TIDAL INTERACTION AS THE ORIGIN OF EARLY-TYPE DWARF GALAXIES IN GROUP ENVIRONMENTS

We present a sample of dwarf galaxies that suffer ongoing disruption by the tidal forces of nearby massive galaxies. By analyzing structural and stellar population properties using the archival

Satellite accretion in action: a tidally disrupting dwarf spheroidal around the nearby spiral galaxy NGC 253

We report the discovery of NGC 253-dw2, a dwarf spheroidal (dSph) galaxy candidate undergoing tidal disruption around a nearby spiral galaxy, NGC 253 in the Sculptor group: the first such event

FAINT TIDAL FEATURES IN GALAXIES WITHIN THE CANADA–FRANCE–HAWAII TELESCOPE LEGACY SURVEY WIDE FIELDS

We present an analysis of the detectability of faint tidal features in galaxies from the wide-field component of the Canada–France–Hawaii Telescope Legacy Survey. Our sample consists of 1781 luminous

The haloes and environments of nearby galaxies (HERON) – I. Imaging, sample characteristics, and envelope diameters

We use a dedicated 0.7-m telescope to image the haloes of 119 galaxies in the Local Volume to μr ∼ 28–30 mag arcsec−2. The sample is primarily from the Two Micron All Sky Survey Large Galaxy Atlas

Probing the merger history of red early-type galaxies with their faint stellar substructures

Several detailed observations, such as those carried out at the Canada-France-Hawaii Telescope (CFHT), have revealed prominent Low Surface Brightness (LSB) fine structures that lead to a change in

THE DRAGONFLY NEARBY GALAXIES SURVEY. I. SUBSTANTIAL VARIATION IN THE DIFFUSE STELLAR HALOS AROUND SPIRAL GALAXIES

Galaxies are thought to grow through accretion; as less massive galaxies are disrupted and merge over time, their debris results in diffuse, clumpy stellar halos enveloping the central galaxy. Here
...

References

SHOWING 1-10 OF 38 REFERENCES

The Ghost of a Dwarf Galaxy: Fossils of the Hierarchical Formation of the Nearby Spiral Galaxy NGC 5907

We present an extragalactic perspective of an extended stellar tidal stream wrapping around the edge-on spiral galaxy NGC 5907. Our deep images reveal for the first time a large-scale complex of

The remnants of galaxy formation from a panoramic survey of the region around M31

TLDR
A panorama of galaxy structure of the Andromeda galaxy (M31) is reported, which directly confirms the basic tenets of the hierarchical galaxy formation model and reveals the shared history of M31 and M33 in the unceasing build-up of galaxies.

DISCOVERY OF A GIANT STELLAR TIDAL STREAM AROUND THE DISK GALAXY NGC 4013

We report the discovery of a giant, looplike stellar structure around the edge-on spiral galaxy NGC 4013. This arcing feature extends 6′ (∼26 kpc in projected distance) northeast from the center and

Tracing Galaxy Formation with Stellar Halos. II. Relating Substructure in Phase and Abundance Space to Accretion Histories

This paper explores the mapping between the observable properties of a stellar halo in phase and abundance space and the parent galaxy’s accretion history in terms of the characteristic epoch of

Absolute Proper Motions to B ~ 22.5: Large-Scale Streaming Motions and the Structure and Origin of the Galactic Halo

With an enlarged sample of radial velocities, we explore the phase-space and metallicity distributions for a sample of dwarf stars with distances up to 8 kpc in a deep north Galactic pole proper

LESS THAN 10 PERCENT OF STAR FORMATION IN z ∼ 0.6 MASSIVE GALAXIES IS TRIGGERED BY MAJOR INTERACTIONS

Both observations and simulations show that major tidal interactions or mergers between gas-rich galaxies can lead to intense bursts of star formation. Yet, the average enhancement in star formation

Tracing Galaxy Formation with Stellar Halos. I. Methods

If the favored hierarchical cosmological model is correct, then the Milky Way system should have accreted ~100-200 luminous satellite galaxies in the past ~12 Gyr. We model this process using a

A Merger-driven Scenario for Cosmological Disk Galaxy Formation

The hierarchical nature of the ΛCDM cosmology poses serious difficulties for the formation of disk galaxies. To help resolve these issues, we describe a new, merger-driven scenario for the

Galactic stellar haloes in the CDM model

We present six simulations of galactic stellar haloes formed by the tidal disruption of accreted dwarf galaxies in a fully cosmological setting. Our model is based on the Aquarius project, a suite of

A PANORAMIC VIEW OF THE MILKY WAY ANALOG NGC 891

Recent panoramic observations of the dominant spiral galaxies of the Local Group have revolutionized our view of how these galaxies assemble their mass. However, it remains completely unclear whether