2014ApJ...791..131K


C.D.S. - SIMBAD4 rel 1.7 - 2020.09.25CEST07:54:43

2014ApJ...791..131K - Astrophys. J., 791, 131 (2014/August-3)

A classification scheme for young stellar objects using the wide-field infrared survey explorer AllWISE catalog: revealing low-density star formation in the outer galaxy.

KOENIG X.P. and LEISAWITZ D.T.

Abstract (from CDS):

We present an assessment of the performance of WISE and the AllWISE data release for a section of the Galactic Plane. We lay out an approach to increasing the reliability of point-source photometry extracted from the AllWISE catalog in Galactic Plane regions using parameters provided in the catalog. We use the resulting catalog to construct a new, revised young star detection and classification scheme combining WISE and 2MASS near- and mid-infrared colors and magnitudes and test it in a section of the outer Milky Way. The clustering properties of the candidate Class I and II stars using a nearest neighbor density calculation and the two-point correlation function suggest that the majority of stars do form in massive star-forming regions, and any isolated mode of star formation is at most a small fraction of the total star forming output of the Galaxy. We also show that the isolated component may be very small and could represent the tail end of a single mechanism of star formation in line with models of molecular cloud collapse with supersonic turbulence and not a separate mode all to itself.

Abstract Copyright:

Journal keyword(s): circumstellar matter - H II regions - infrared: stars - stars: formation - stars: pre-main sequence

Simbad objects: 10

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Number of rows : 10

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 W 3 MoC 02 27 04.10 +61 52 27.1           ~ 967 3
2 NAME Heart Nebula HII 02 32.7 +61 27           ~ 284 1
3 IC 1848 OpC 02 51 06 +60 24.6   6.87 6.5     ~ 447 2
4 RAFGL 490 Y*O 03 27 38.7928323987 +58 47 00.017662871           ~ 341 0
5 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3531 0
6 NAME NGP reg 12 51 26.275 +27 07 41.70           ~ 1029 0
7 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11679 0
8 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0Va 2514 0
9 NAME III CEP ASSOC As* 23 04.2 +63 24           ~ 295 0
10 NGC 7538 OpC 23 13 37 +61 30.0           ~ 831 0

    Equat.    Gal    SGal    Ecl

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2020.09.25-07:54:43

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