2018MNRAS.477.1940J

Query : 2018MNRAS.477.1940J

2018MNRAS.477.1940J - Mon. Not. R. Astron. Soc., 477, 1940-1948 (2018/June-3)

J plots: a new method for characterizing structures in the interstellar medium.

JAFFA S.E., WHITWORTH A.P., CLARKE S.D. and HOWARD A.D.P.

Abstract (from CDS):

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.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: formation - ISM: structure

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 SH 2-3 HII 17 12.4 -38 28           ~ 234 1

Query : 2018MNRAS.477.1940J

Basic data :
SH 2-3 -- HII Region
Other object types: otypes_help 		HII (1976A&AS,SH,...), Rad (GRS)
ICRS coord. (ep=J2000) : 		17 12 24.0 -38 28 00 (Optical) [ ] E 1976A&AS...25...25D
FK4 coord. (ep=B1950 eq=1950) : 		17 08 58.4 -38 24 26 [ ]
Gal coord. (ep=J2000) : 		348.2498 +00.4694 [ ]
Proper motions mas/yr : 		-0.82 -2.38 [0.12 0.19 90] D 2019ApJ...870...32K
Radial velocity / Redshift / cz : 		V(km/s) 13.00 [4.1] / z(spectroscopic) 0.000043 [0.000014] / cz 13.00 [4.10]
   (Opt) C 2019ApJ...870...32K
Parallaxes (mas): 		0.59 [0.04] C 2019ApJ...870...32K
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Hierarchy : number of linked objects
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: 174 		Display criteria :

Identifiers (4) :
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SH 2-3 GRS G348.20 +00.40 GUM 58 RCW 120

References (234 between 1850 and 2026) (Total 234)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 1    Distance : 1    Plx : 1    PM : 1   

   

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Herschel : 22   

   

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