48 Lib

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
    1976/05         21.47           613                    2.60 ApJS, 38, 205, 1978
    1977/06         18.14           637                    2.26 ApJS, 38, 205, 1978
    1985/02/28         17.63               245              0.47            2.36           3.88            0.11 A&A, 166,185,1986
    1994/04/01         25.69           420             242              1.05            3.71           3.58            0.15  This page
    1994/05/11         24.87           425             250              0.93            3.44           3.62            0.13  This page
    1994/05/18         25.50           420             254              0.88            3.39           3.71            0.15  This page
    1994/05/19         25.74           415             250              0.92            3.57           3.80            0.15  This page
    1994/05/23         25.34           415             256              0.89            3.40           3.71            0.16  This page
    1994/06/10         25.97           415             265              0.84            3.36           3.82            0.16  This page
    1994/06/12         25.68           410             265              0.85            3.34           3.76            0.15  This page
    1995/03/03         24.63           350             255              0.55            2.83           4.30            0.12  This page
    1995/03/11         23.27           343             254              0.56            2.73           4.10            0.12  This page
    1996/05/20         22.62           300:             253              0.38            2.40           4.65            0.15  This page
    1996/05/30         24.53           310:             248              0.40            2.52           4.81            0.15  This page
    1996/05/31         23.37           310:             244              0.39            2.45           4.72            0.15  This page
    1997/05/23         24.89           315:             247              0.39            2.50           4.89            0.15  This page
    1997/05/27         25.00           315:             248              0.39            2.49           4.89            0.14  This page
    1997/06/11         23.30           320:             254              0.38            2.38           4.68            0.15  This page
    1997/06/27         24.71           330:             247              0.39            2.48           4.83            0.14  This page
    1997/06/27*         24.83           330:             247              0.38            2.47           4.88            0.14  This page
    1998/04/06         23.83           345             257              0.50            2.53           4.08            0.16  This page
    1998/07/05         24.34           340             255              0.48            2.56           4.27            0.15  This page
    1999/03/15         17.28           350             234              0.65             3.95   A&AS,147,229,2000
    2001/02/21         24.54           430             230              0.78            2.76           3.25            0.66  This page
    2001/03/10         24.58           435             240              0.82            2.80           3.22            0.66  This page
    2001/03/19         24.22           435             235              0.74            2.73           3.35            0.56  This page
    2001/04/02         24.24           432             240              0.77            2.75           3.28            0.64  This page
    2001/04/28         24.39           429             235              0.75            2.78           3.37            0.56  This page
    2001/04/29         24.28           440             233              0.75            2.74           3.33            0.56  This page
    2001/05/10         24.87           420             240              0.74            2.83           3.47            0.51  This page
    2001/05/30         24.93           410             224              0.71            2.77           3.48            0.54  This page
    2001/06/10         24.35           412             235              0.71            2.73           3.44            0.54  This page
    2001/07/03         25.23           413             220              0.65            2.66           3.54            0.46  This page

* The spectra obtained about an hour apart

Sample H-alpha profiles

Last updated: 2001 September 21