New dwarf galaxy candidates in the sphere of influence of the Local Volume spiral galaxy NGC2683

Abstract

We present initial results of a survey of host $L_{\ast }$ galaxies environments in the Local Volume ($D<10$Mpc) searching for satellite dwarf galaxy candidates using the wide-field Hyper Suprime-Cam imager on the 8m Subaru Telescope. The current paper presents complete results on NGC2683 ($M_{B_T,0}=-19.62$, $D=9.36Mpc$, $v_{\odot }=411km{s}^{-1}$), an isolated Sc spiral galaxy in the Leo Spur. At the distance of NGC2683, we image the complete volume out to projected radii of $380kpc$ using a hexagonal arrangement of 7 pointings. Direct inspection of the images is complete down to $M_g\sim -11$ and has revealed 4 new satellite galaxy candidates, 2 of which have been independently discovered by other researchers. Assuming the distance of NGC2683, these candidates span luminosities $-12<M_g<-9$ and effective radii 150\,pc $<r_e<$ 1100\,pc and are found to be morphologically reminiscent of satellite galaxies in the Local Group. These 4 new candidates add to the 8 already known. A Principle Component Analysis of the 2D projected distribution of the 12 satellite galaxies of NGC2683 reveals a flattened projected disk of satellites, with axis ratio $b/a=0.23$. This flattening in the 2D projected system of satellites is a 1 percent outlier of simulated isotropic satellite systems but is mostly consistent with satellite distributions of comparable galaxy environments in the IllustrisTNG simulation. This indicates the possible presence of a satellite plane, which will need to be investigated with follow-up observations.

arXiv comment17 pages, 12 figures, accepted to MNRAS

References in corpus (68)

• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Dark Matter Substructure in Galactic Halos
• Where are the missing galactic satellites?
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• The Aquarius Project: the subhalos of galactic halos
• Small-Scale Challenges to the $\Lambda$CDM Paradigm
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological Implications from two Decades of Spectroscopic Surveys at the Apache Point observatory
• The Pantheon+ Analysis: Cosmological Constraints
• Dark Energy Survey Year 1 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• The SDSS View of the Palomar-Green Bright Quasar Survey
• Updated Nearby Galaxy Catalog
• Forty-Seven Milky Way-Sized, Extremely Diffuse Galaxies in the Coma Cluster
• The Spitzer Survey of Stellar Structure in Galaxies (S^4G)
• Second Data Release of the Hyper Suprime-Cam Subaru Strategic Program
• A Vast Thin Plane of Co-rotating Dwarf Galaxies Orbiting the Andromeda Galaxy
• Improved Estimates of the Milky Way's Stellar Mass and Star Formation Rate from Hierarchical Bayesian Meta-Analysis
• The Hyper Suprime-Cam Software Pipeline
• Third-Epoch Magellanic Cloud Proper Motions I: HST/WFC3 data and Orbit Implications
• The Progenitors of Dwarf Spheroidal Galaxies
• Our Peculiar Motion Away from the Local Void
• The great disk of Milky-Way satellites and cosmological sub-structures
• The VPOS: a vast polar structure of satellite galaxies, globular clusters and streams around the Milky Way
• The size - virial radius relation of galaxies
• ELVIS: Exploring the Local Volume in Simulations
• FIGGS: Faint Irregular Galaxies GMRT Survey - Overview, observations and first results
• The Local Group on FIRE: Dwarf galaxy populations across a suite of hydrodynamic simulations
• Be it therefore resolved: Cosmological Simulations of Dwarf Galaxies with Extreme Resolution
• The spatial distribution of the Milky Way and Andromeda satellite galaxies
• The SAGA Survey. II. Building a Statistical Sample of Satellite Systems around Milky Way-like Galaxies
• Confirmation of Faint Dwarf Galaxies in the M81 Group
• A whirling plane of satellite galaxies around Centaurus A challenges cold dark matter cosmology
• Dwarf Galaxy Planes: the discovery of symmetric structures in the Local Group
• The rotationally stabilized VPOS and predicted proper motions of the Milky Way satellite galaxies
• The Three-Dimensional Structure of the M31 Satellite System; Strong Evidence for an Inhomogeneous Distribution of Satellites
• Two Planes of Satellites in the Centaurus A Group
• NIHAO XV: The environmental impact of the host galaxy on galactic satellite and field dwarf galaxies
• The Planes of Satellite Galaxies Problem, Suggested Solutions, and Open Questions
• The preferred direction of infalling satellite galaxies in the Local Group
• Phat ELVIS: The inevitable effect of the Milky Way's disk on its dark matter subhaloes
• Planes of satellite galaxies and the cosmic web
• The Next Generation Fornax Survey (NGFS): II. The Central Dwarf Galaxy Population
• The Caterpillar Project: A Large Suite of Milky Way Sized Halos
• DGSAT: Dwarf Galaxy Survey with Amateur Telescopes I. Discovery of low surface brightness systems around nearby spiral galaxies
• A thousand shadows of Andromeda: rotating planes of satellites in the Millennium-II cosmological simulation
• Planes of satellite galaxies: when exceptions are the rule
• Did the Milky Way dwarf satellites enter the halo as a group?
• The Link between Galactic Satellite Orbits and Subhalo Accretion
• The M101 group complex: new dwarf galaxy candidates and spatial structure
• The dwarf galaxy satellite system of Centaurus A
• Catalog of Visually Classified Galaxies in the Local ($z\sim 0.01$) Universe
• New low surface brightness dwarf galaxies in the Centaurus group
• Structure and morphology of the MATLAS dwarf galaxies and their central nuclei
• The Aptly Named Phoenix Dwarf Galaxy
• The Resolved Stellar Halo of NGC 253
• Tracing satellite planes in the Sculptor group: I. Discovery of three faint dwarf galaxies around NGC 253
• Newly discovered dwarf galaxies in the MATLAS low density fields
• Figuring Out Gas & Galaxies In Enzo (FOGGIE). IV. The Stochasticity of Ram Pressure Stripping in Galactic Halos
• More galaxies in the Local Volume imaged in H-alpha
• A Recent Major Merger Tale for the Closest Giant Elliptical Galaxy Centaurus A
• Pecular velocities of galaxies in the Leo Spur
• Flattened structures of dwarf satellites around massive host galaxies in the MATLAS low-to-moderate density fields
• The Stellar Mass of M31 as inferred by the Andromeda Optical & Infrared Disk Survey
• We are not the 99 percent: quantifying asphericity in the distribution of Local Group satellites
• Hyper Suprime-Cam Legacy Archive
• The flaring HI disk of the nearby spiral galaxy NGC 2683
• B,V,I - photometry of 20 dwarf irregular galaxies within 10 Mpc
• Early-type galaxies in the Antlia Cluster: global properties
• New HI observations of KK 69. Is KK 69 a dwarf galaxy in transition?

Cited by in corpus (6)

• A too-many dwarf galaxy satellites problem in the M83 group
• New dwarf galaxy candidates in the sphere of influence of the Sombrero galaxy
• Is the correlation between the bulge-to-total stellar mass ratio and the number of dwarf galaxies in tension with $\Lambda$CDM?
• Dwarf Galaxies in the MATLAS Survey: The satellite system of NGC474 under scrutiny with MUSE
• IFUM Integrated Field Spectroscopy of Ten M104 Satellite Galaxy Candidates
• Galaxies OBserved as Low-luminosity Identified Nebulae (GOBLIN): a catalog of 43,000 high-probability dwarf galaxy candidates in the UNIONS survey