1998A&A...337..113G


Query : 1998A&A...337..113G

1998A&A...337..113G - Astronomy and Astrophysics, volume 337, 113-124 (1998/9-1)

Discovery of a late-type stellar population associated with the Gould Belt.

GUILLOUT P., STERZIK M.F., SCHMITT J.H.M.M., MOTCH C. and NEUHAEUSER R.

Abstract (from CDS):

We report the detection of a late-type stellar population in the direction of the Gould Belt among stars found by cross-correlating the ROSAT All-Sky Survey with the Tycho catalog. Regions of the Gould Belt located between l=195° and l=15° exhibit a strong density enhancement of X-ray active stars with associated X-ray luminosities LX=1030.0±0.5erg/s typical for very young coronae. In contrast, other regions show average galactic plane characteristics. Stars accounting for the excess appear to extend from the solar vicinity up to about 300pc towards a quadrant centered on l=240°, but their distance distribution only extends to 180pc from the Sun towards l=330°. The structure can be understood as a disk-like arrangement of stars having the same inclination towards the galactic plane as the Gould Belt and extending to its outer boundary. We suggest that these stars are the residuals of original associations and interpret them as the late-type stellar population of the Gould Belt.

Abstract Copyright:

Journal keyword(s): X-rays: stars - stars: late type - stars: formation - galaxy: stellar content - galaxy: structure

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 - 2022
#notes
1 Cl Melotte 25 OpC 04 29 47 +16 56.9           ~ 2849 0
2 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1297 0
3 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2143 1
4 IC 2391 OpC 08 41 10 -52 59.5           ~ 767 0
5 IC 2602 OpC 10 42 27 -64 25.6           ~ 612 0
6 NAME Chamaeleon Region SFR 11 55 -78.0           ~ 743 0
7 NAME Gould Belt PoG ~ ~           ~ 800 1
8 NAME Oph-Sco-Lup ? ~ ~           ~ 2 0

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2022.06.25-20:15:22

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