2015ApJ...799..116S

Query : 2015ApJ...799..116S

2015ApJ...799..116S - Astrophys. J., 799, 116 (2015/February-1)

Three-dimensional dust mapping reveals that Orion forms part of a large ring of dust.

SCHLAFLY E.F., GREEN G., FINKBEINER D.P., RIX H.-W., BURGETT W.S., CHAMBERS K.C., DRAPER P.W., KAISER N., MARTIN N.F., METCALFE N., MORGAN J.S., PRICE P.A., TONRY J.L., WAINSCOAT R.J. and WATERS C.

Abstract (from CDS):

The Orion Molecular Complex is the nearest site of ongoing high-mass star formation, making it one of the most extensively studied molecular complexes in the Galaxy. We have developed a new technique for mapping the three-dimensional distribution of dust in the Galaxy using Pan-STARRS1 photometry. We isolate the dust at the distance to Orion using this technique, revealing a large (100 pc, 14° diameter), previously unrecognized ring of dust, which we term the "Orion dust ring." The ring includes Orion A and B, and is not coincident with current Hα features. The circular morphology suggests formation as an ancient bubble in the interstellar medium, though we have not been able to conclusively identify the source of the bubble. This hint at the history of Orion may have important consequences for models of high-mass star formation and triggered star formation.

Abstract Copyright: ∼

Journal keyword(s): dust, extinction - ISM: bubbles - ISM: clouds

Simbad objects: 19

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Number of rows : 19
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 NAME Eridanus Shell sh 02 17 31 +07 49.6           ~ 52 0
2 NAME California Molecular Cloud MoC 04 10.0 +39 00           ~ 188 1
3 NAME TAU-AUR T ASSOC Cl* 04 32 33 +26 04.6           ~ 48 0
4 NAME Barnard's Loop HII 05 27.5 -03 58           ~ 131 1
5 * lam Ori ** 05 35 08.27761 +09 56 02.9611 2.45 3.48 3.66 3.72 3.89 O8IIIf+B0.5V 327 0
6 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
7 NAME Ori I As* 05 38 -02.8           ~ 653 0
8 NAME Ori A MoC 05 38 -07.1           ~ 3187 0
9 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1498 0
10 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1227 1
11 NAME Mon R2 HII 06 07 47.58 -06 22 42.6           ~ 789 2
12 NAME Orion Northern Filament MoC 06 08 +03.           ~ 7 0
13 NAME Crossbones MoC 06 26 -10.           ~ 13 0
14 NGC 2232 OpC 06 27 45.6 -04 44 26           ~ 212 0
15 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
16 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
17 Ass Ori OB 1a As* ~ ~           ~ 237 0
18 NAME Local Bubble ISM ~ ~           ~ 1059 0
19 NAME Gould Belt PoG ~ ~           ~ 956 1

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