Jaffa, S. E., Whitworth, A. P., Clarke, S. D. and Howard, A. D. P. (2018). J plots: a new method for characterizing structures in the interstellar medium. Mon. Not. Roy. Astron. Soc., 477 (2). S. 1927 - 1936. OXFORD: OXFORD UNIV PRESS. ISSN 1365-2966

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Abstract

Large-scale surveys have brought about a revolution in astronomy. To analyse the resulting wealth of data, we need automated tools to identify, classify, and quantify the important underlying structures. We present here a method for classifying and quantifying a pixelated structure, based on its principal moments of inertia. The method enables us to automatically detect, and objectively compare, centrally condensed cores, elongated filaments, and hollow rings. We illustrate the method by applying it to (i) observations of surface density from Hi-GAL, and (ii) simulations of filament growth in a turbulent medium. We limit the discussion here to 2D data; in a future paper, we will extend the method to 3D data.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Jaffa, S. E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Whitworth, A. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Clarke, S. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Howard, A. D. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-183621
DOI: 10.1093/mnras/sty696
Journal or Publication Title: Mon. Not. Roy. Astron. Soc.
Volume: 477
Number: 2
Page Range: S. 1927 - 1936
Date: 2018
Publisher: OXFORD UNIV PRESS
Place of Publication: OXFORD
ISSN: 1365-2966
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
GOULD BELT SURVEY; COMPARING SIMULATIONS; MOLECULAR CLOUDS; STAR-FORMATION; RCW 120; CLUSTERS; CORES; I.Multiple languages
Astronomy & AstrophysicsMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/18362

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