SIMBAD references

2016MNRAS.459.2370T - Mon. Not. R. Astron. Soc., 459, 2370-2378 (2016/July-1)

The feeble giant. Discovery of a large and diffuse Milky Way dwarf galaxy in the constellation of Crater.

TORREALBA G., KOPOSOV S.E., BELOKUROV V. and IRWIN M.

Abstract (from CDS):

We announce the discovery of the Crater 2 dwarf galaxy, identified in imaging data of the VLT Survey Telescope ATLAS survey. Given its half-light radius of ∼ 1100 pc, Crater 2 is the fourth largest satellite of the Milky Way, surpassed only by the Large Magellanic Cloud, Small Magellanic Cloud and the Sgr dwarf. With a total luminosity of MV ≈ -8, this galaxy is also one of the lowest surface brightness dwarfs. Falling under the nominal detection boundary of 30 mag arcsec–2, it compares in nebulosity to the recently discovered Tuc 2 and Tuc IV and UMa II. Crater 2 is located ∼ 120 kpc from the Sun and appears to be aligned in 3D with the enigmatic globular cluster Crater, the pair of ultrafaint dwarfs Leo IV and Leo V and the classical dwarf Leo II. We argue that such arrangement is probably not accidental and, in fact, can be viewed as the evidence for the accretion of the Crater-Leo group.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): Galaxy: halo - galaxies: dwarf - galaxies: dwarf

Nomenclature: NAME Crater 2 N=1.

Simbad objects: 30

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2019.09.17-03:13:31

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