based on accurate parallaxes, are compatible with several earlier studies of the region.]{}]{} The whole complex is presently expanding, and the expansion started between 8 to 10Myr ago. Two hundred members show infrared excess compatible with circumstellar disks from full to debris disks. This discovery provides a large sample of nearby young stellar and sub-stellar objects for disk and exoplanet studies.'
author:
- Bertrand Goldman
- Siegfried Röser
- Elena Schilbach
- 'Attila C. Moór'
- Thomas Henning
bibliography:
- 'bibiography.bib'
title: '[A large moving group within the Lower Centaurus Crux association]{}'
---

Introduction {#sec:intro}
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Co-eval structures of the Solar neighborhood are useful entities for various fields in astronomy. Either gravitationally bound (a.k.a. open clusters) or not (moving groups), they provide samples of stars that share the same composition, motion, and age. Possible deviations from this set of parameters also give insights into the formation of these structures: the velocity dispersion may allow to constrain the age and location of the birth place of the population; the composition and age dispersion may reveal a more complicated formation and multiple stages of star formation. Co-evolution on the other hand lets us constrain the stellar evolutionary models. To find such structures 