2006A&A...455L..17L


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.24CET01:50:46

2006A&A...455L..17L - Astronomy and Astrophysics, volume 455, L17-20 (2006/8-4)

Clusters in the solar neighbourhood: how are they destroyed?

LAMERS H.J.G.L.M. and GIELES M.

Abstract (from CDS):

We predict the survival time of initially bound star clusters in the solar neighbourhood taking into account: (1) stellar evolution, (2) tidal stripping, (3) shocking by spiral arms and (4) encounters with giant molecular clouds. We find that the predicted dissolution time is tdis=1.7(Mi/104M)0.67Gyr for clusters in the mass range of 102<Mi<105M. The resulting predicted shape of the logarithmic age distribution agrees very well with the empirical one, derived from a complete sample of clusters in the solar neighbourhood within 600pc. The required scaling factor implies a star formation rate of 4x102M/Myr within 600pc from the Sun or a surface formation rate of 3.5x10–10M/yr/pc2 for stars in bound clusters with an initial mass in the range of 102 to 3x104M.

Abstract Copyright:

Journal keyword(s): Galaxy: open clusters and associations: general - Galaxy: solar neighbourhood - Galaxy: disk - Galaxy: general - Galaxies: star clusters - Galaxy: kinematics and dynamics

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 M 81 Sy2 09 55 33.17306143 +69 03 55.0609270   7.89 6.94     ~ 4030 5
2 M 100 AGN 12 22 54.9318850854 +15 49 20.294302163 10.04 10.05 9.35     ~ 1678 2
3 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 3873 4

    Equat.    Gal    SGal    Ecl

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2021.01.24-01:50:46

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