Estimation of the Local Mass Density from an F-Star Sample Observed by HIPPARCOS

Details Estimation of the Local Mass Density from an F-Star Sample Observed by HIPPARCOS Estimation of the Local Mass Density from an F-Star Sample Observed by HIPPARCOS

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997esasp.402..559p&link_type=abstract

Proceedings of the ESA Symposium `Hipparcos - Venice '97', 13-16 May, Venice, Italy, ESA SP-402 (July 1997), p. 559-562

Physics

24

Scientific paper

This work is dedicated to the determination of the local mass density from an F-stars sample observed by Hipparcos. We present here a maximum likelihood method in order to estimate the scale height of a tracer sample together with the Sun height. This method takes into account the limiting apparent magnitude of the tracer sample. Applying this method on a sample of F stars observed by Hipparcos, we find a scale height of 165 +/- 5 pc. The estimated sun height is 9 +/- 4 pc. The local volume mass density is 0.11 +/- 0.01 M_(solar) pc^(-3).

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