Astrometry & Dynamics: Double & Multiple Stars

Royal Observatory of Belgium (Brussels)

Welcome to the world of double and multiple stars.

Are you interested in the Universe ? Stars ? Double Stars ?

Have a look here

This page aims at giving you some basic information on double stars, on new observational techniques used to study these (e.g CCD) and shows results for some double stars obtained by the succesful HIPPARCOS space mission. We hope to raise in you a lot of questions about the Universe in general and double stars in particular.

Happy travel through the world of double stars !

• History of double star studies at the Royal Observatory
• Why do we study double stars ?
• Types of binary stars
• The CCD technique and double stars
• The Hipparcos mission and double stars
• After the Hipparcos mission


• List of publications (via ADS) http://adsabs.harvard.edu/cgi-bin/nph-abs_connect?db_key=AST&sim_query=YES&aut_xct=NO&aut_logic=OR&obj_logic=OR&author=Lampens&object=&start_mon=&start_year=&end_mon=&end_year=&ttl_logic=OR&title=&txt_logic=OR&text=&nr_to_return=100&start_nr=1&start_entry_day=&start_entry_mon=&start_entry_year=&min_score=&jou_pick=ALL&ref_stems=&data_and=ALL&group_and=ALL&sort=SCORE&aut_syn=YES&ttl_syn=YES&txt_syn=YES&aut_wt=1.0&obj_wt=1.0&ttl_wt=0.3&txt_wt=3.0&aut_wgt=YES&obj_wgt=YES&ttl_wgt=YES&txt_wgt=YES&ttl_sco=YES&txt_sco=YES&version=1 
• Selected publications:
• "CCD Photometry and Astrometry for Visual Double and Multiple Stars of the HIPPARCOS Catalogue. I. "compressed PS (gzip, 85 Kb)
• ''CCD Photometry and Astrometry for Visual Double and Multiple Stars of the HIPPARCOS Catalogue. III. "compressed PS (gzip, 141 Kb)
• "Delta Scuti stars in stellar systems: on the variability of HD 220392 and HD 220391"compressed PS (gzip, 247 Kb)

• Other texts:
• International Liquid Mirror Telescope and double-star astronomy
• "DG Leo: Asteroseismology in a multiple system" PPT slide show

Authors: Michele Guchez - Patricia Lampens
Last updated: Feb 2003
Colleagues involved:

• Patricia Lampens (visual double stars and multiple stars - systems with pulsating components)  
• David Duval (reduction of CCD observations) 
• Yves Fremat (binaries and multiple systems with pulsating components)
• Pasi Nurmi (preparation of the GAIA astrometry mission)

ROYAL OBSERVATORY OF BELGIUM


Please direct comments to patricia.lampens@oma.be