Issue |
A&A
Volume 503, Number 3, September I 2009
|
|
---|---|---|
Page(s) | 909 - 912 | |
Section | Stellar structure and evolution | |
DOI | https://doi.org/10.1051/0004-6361/200912331 | |
Published online | 22 June 2009 |
Measuring anticlustering in regions of triggered star formation
School of Physics and Astronomy, Cardiff University, 5 The Parade, Cardiff CF24 3AA, UK e-mail: Annabel.Cartwright@astro.cf.ac.uk
Received:
15
April
2009
Accepted:
11
June
2009
Context. Statistical methods for quantifying clustering have not yet been tested against anti-clustered data.
Aims. We investigate the performance of the normalised correlation length, , and
when applied to anti-clustered data.
Methods. We tested the operation of on simulated data and recently published observations.
Results. successfully distinguishes anticlustered data in simulations and indicates anticlustering in an area where it is speculated that triggered star formation has occurred. The existence of radial anticlustering can cause the
clustering analysis method to malfunction. Users of
should therefore use
to rule out anticlustering before applying
.
Key words: stars: formation / HII regions / methods: statistical
© ESO, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.