{ "id": "1909.09522", "version": "v1", "published": "2019-09-20T14:13:58.000Z", "updated": "2019-09-20T14:13:58.000Z", "title": "Hunting for low-surface brightness features in nearby galaxy groups", "authors": [ "Oliver Müller" ], "comment": "4pages, 1 figure. Conference proceeding for the IAU Symposium 355 \"The Realm of the Low Surface Brightness Universe\" held in Tenerife, Spain, July 8-12, 2019", "categories": [ "astro-ph.GA" ], "abstract": "On the scale of dwarf galaxies, several tensions between observations and the theory of structure formation have been identified in the Local Group of galaxies. One of them, the plane-of-satellite problem describes the distribution and motion of dwarf galaxies around their hosts being planar and co-moving. To extend these studies, we have surveyed the nearby Centaurus group and found again evidence for co-rotation within a planar structure of dwarf galaxies, posing a challenge to the current LambdaCDM paradigm. To further study the distribution of satellite systems around other galaxy groups, we have tested MTO - a program to detect astronomical sources - and found that it works well in combination with surface brightness fluctuation distance measurements to get a complete sample of dwarf galaxies. Such an approach will improve the census of dwarf galaxies in nearby galaxy groups, bringing the study of the small-scale problems to a solid statistical foundation.", "revisions": [ { "version": "v1", "updated": "2019-09-20T14:13:58.000Z" } ], "analyses": { "keywords": [ "nearby galaxy groups", "low-surface brightness features", "dwarf galaxies", "surface brightness fluctuation distance measurements", "nearby centaurus group" ], "tags": [ "conference paper" ], "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }