Omicron  And

Parameters of the H-alpha line
         Date
year/month/day		 Equiv. width
          A		        FWHM
         km/s		 Peak separation
         km/s		             V/R Blue peak intens.
continuum units		 Red peak intens.
continuum units		 Centr.peak/depres
continuum units		      Reference
    1993/10/08          2.34*             440              1.00            0.92           0.92           0.22    This page
    1997/10/09          2.87             358              1.00            0.98           0.98           0.26    This page
    1998/10/27          4.31             375              1.00            1.09           1.09           0.19    This page
    2000/10/30          2.21             355              1.00            0.91           0.90           0.23    This page
    2000/12/04          2.71             350              1.00            0.94           0.94           0.25    This page
    2001/06/19          2.82             450              1.00            0.95           0.95           0.23    This page
    2001/09/02          2.68             415              1.00            0.93           0.94           0.17    This page

* The equivalent widths are measured with respect to a theoretical profile for Teff=13000 K, log g = 4.0, v sin i = 335 km s-1

The H-alpha equivalent width variations
Sample H-alpha profiles

Last updated: 2001 September 25