2018A&A...616A..44R


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.14CEST02:28:37

2018A&A...616A..44R - Astronomy and Astrophysics, volume 616A, 44-44 (2018/8-1)

Three-dimensional dust mapping in the Orion complex, combining Gaia-TGAS, 2MASS, and WISE.

REZAEI S.K., BAILER-JONES C.A.L., SCHLAFLY E.F. and FOUESNEAU M.

Abstract (from CDS):

We present a map of the three-dimensional (3D) distribution of dust in the Orion complex. Orion is the closest site of high-mass star formation, making it an excellent laboratory for studying the interstellar medium and star formation. We used data from the Gaia-TGAS catalogue combined with photometry from 2MASS and WISE to get the distances and extinctions of individual stars in the vicinity of the Orion complex. We use a Gaussian process and adopt a non-parametric method to infer the probability distribution function of the dust densities at arbitrary points throughout the region. We map the dust distribution towards different parts of the Orion complex. We find that the distance and depth of the cloud are compatible with other recent works, which show that the method can be applicable to local molecular clouds to map their 3D dust distribution. We also demonstrate the danger of only using colours of stars to derive their extinctions without considering further physical constraints, such as the colour-magnitude diagram (CMD).

Abstract Copyright: © ESO 2018

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

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 1989 1
2 Cl Collinder 69 OpC 05 35 06 +09 56.0     2.8     ~ 228 0
3 NAME Ori Region reg 05 35 17.30 -05 23 28.0           ~ 485 0
4 M 42 HII 05 35 17.3 -05 23 28           ~ 3732 0
5 NAME Ori Complex Cld 05 35.3 -05 23           ~ 334 0
6 NAME Ori A MoC 05 38 -07.1           ~ 2681 0
7 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1168 0
8 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11620 0

    Equat.    Gal    SGal    Ecl

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2020.08.14-02:28:37

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