A Council of Giants

  title={A Council of Giants},
  author={Marshall L. McCall},
  journal={Monthly Notices of the Royal Astronomical Society},
  • M. McCall
  • Published 14 March 2014
  • Physics
  • Monthly Notices of the Royal Astronomical Society
Distances and near-infrared luminosities of the brightest galaxies in the Local Volume have been re-evaluated in order to gain a fully homogeneous collection of data for elucidating the framework of the Local Sheet and its relevance to Local Group evolution. It is demonstrated that the Local Sheet is both geometrically and dynamically distinct from the Local Supercluster and that the evolution of the Sheet and Local Group were probably interconnected. The Sheet is inclined by 8° with respect to… 
The Sheet of Giants: Unusual properties of the Milky Way’s immediate neighbourhood
We quantify the shape and overdensity of the galaxy distribution in the ‘Local Sheet’ within a sphere of R = 8 Mpc and compare these properties with the expectations of the ΛCDM model. We measure
Dark energy domination in the local flow of giant galaxies
A dozen of the most luminous galaxies, at distances of up to 10 Mpc from the Local Group, move away from the group, forming the local expansion flow of giants. We use recent Hubble Space Telescope
Denuded dwarfs demystified: gas loss from dSph progenitors and implications for the minimum mass of galaxies
The placement of early-type dwarf galaxies (dSphs and dEs) with respect to the Potential Plane defined by pressure-supported late-type dwarf galaxies (dIs and BCDs) has been determined from surface
A graph of dark energy significance on different spatial and mass scales
The current cosmological paradigm sees the formation and evolution of the cosmic large-scale structure as governed by the gravitational attraction of the Dark Matter (DM) and the repulsion of the
Is the vast polar structure of dwarf galaxies a serious problem for Λ cold dark matter
The dwarf galaxies around the Milky Way are distributed in a so-called vast polar structure (VPOS) that may be in conflict with Lambda CDM simulations. Here, we seek to determine if the VPOS poses a
Stellar Mass and Star Formation Rate within a Billion Light-years
  • J. Biteau
  • Physics
    The Astrophysical Journal Supplement Series
  • 2021
To develop galaxy-targeting approaches, the gravitational-wave community built a catalog of stellar mass in the local universe based on the Two Micron All Sky Survey (2MASS) spectroscopic and
Dark matter halo properties versus local density and cosmic web location
We study the effects of the local environmental density and the cosmic web environment (filaments, walls, and voids) on key properties of dark matter halos using the Bolshoi-Planck LCDM cosmological
Raven and the Center of Maffei 1: Multi-Object Adaptive Optics Observations of the Center of a Nearby Elliptical Galaxy and the Detection of an Intermediate Age Population
Near-infrared (NIR) spectra that have an angular resolution of ∼0.15 arcsec are used to examine the stellar content of the central regions of the nearby elliptical galaxy Maffei 1. The spectra were
HyperLEDA. III. The catalogue of extragalactic distances
We present the compilation catalogue of redshift-independent distances included in the HyperLEDA database. It is actively maintained to be up-to-date, and the current version counts 6640 distance
The Local Group on FIRE: dwarf galaxy populations across a suite of hydrodynamic simulations
We present a new set of high-resolution hydrodynamic cosmological zoom-in simulations that apply the Feedback In Realistic Environments physics to both Local Group (LG)-like and isolated Milky Way


The Local Group and Other Neighboring Galaxy Groups
Over the last few years, rapid progress has been made in distance measurements for nearby galaxies based on the magnitude of stars on the tip of the red giant branch. Current CCD surveys with the
The three-dimensional structural shape of the gravitational potential in the Local Group
The Local Group is a small galaxy cluster with a membership of 62 nearby galaxies including the Milky Way and M31. Although the Local Group has yet to be virialized, it interacts with the surrounding
Planar distribution of the galaxies in the Local Group: a statistical and dynamical analysis
Aims. Basing on the projected distribution of the galaxies in the Local Group, Sawa & Fujimoto found that they all seem to distribute on a rather thin plane containing the two mayor local galaxies of
Distances and metallicities for 17 Local Group galaxies
We have obtained Johnson V and Gunn i photometry for a large number of Local Group galaxies using the Isaac Newton Telescope Wide Field Camera (INT WFC). The majority of these galaxies are members of
Constrained Simulations of the Real Universe: The Local Supercluster
We present cosmological simulations that closely mimic the real uiverse within ~100 Mpc of the Local Group. The simulations, called constrained simulations, reproduce the large-scale density field
The IC 342/Maffei Group Revealed
Deep wide-field CCD images in the optical and near-infrared have been acquired for 14 of the 16 known or suspected members of the IC 342/Maffei Group of galaxies, one of the closest groups to the
The Hubble Flow around the Centaurus A/M83 Galaxy Complex
We present Hubble Space Telescope ACS images and color-magnitude diagrams for 24 nearby galaxies in and near the constellation of Centaurus with radial velocities VLG < 550 km s-1. Distances are
Halos of Spiral Galaxies. I. The Tip of the Red Giant Branch as a Distance Indicator
We have imaged the halo populations of a sample of nearby spiral galaxies using the Wide Field Planetary Camera 2 on board the Hubble Space Telescope with the aim of studying the stellar population
Radial and Transverse Velocities of Nearby Galaxies
Analysis of the peculiar velocities of the galaxies should take account of the uncertainties in both redshifts and distances. We show how this can be done by a numerical application of the action
A vast, thin plane of corotating dwarf galaxies orbiting the Andromeda galaxy
Radial velocity measurements reveal that the satellites in this structure have the same sense of rotation about their host, and shows conclusively that substantial numbers of dwarf satellite galaxies share the same dynamical orbital properties and direction of angular momentum.