Download Area

Appendix Tables

Table 1 lists the stars with H&K emission:
         Text  ·  PS (165 kB)

Table 2 lists the stars without H&K emission:
         Text  ·  PS (208 kB)

Table 3 lists our new candidates for observation with the Doppler Imaging technique:
         Text  ·  PS (31 kB)

Description of Tab.1-3


Appendix Figures

Calcium H&K spectra

Fig.1. Ca II spectra of stars with H and K emission. Shown are the 316 stars with an intensity level in the K line of IK larger/equal 1. The HD number (or HIP number or Variable Star designation if no HD number exists) is identified on top of each plot. Each plot covers a range of 50 A centered at 3950 A.

Balmer H_alpha spectra

Fig.2. Selected Balmer H_alpha spectra of stars with strong Ca II H and K emission. The HD number (or HIP number if no HD number exists) is identified on top of each plot. The wavelength range shown is 30 A.

Lithium spectra

Fig.3. Lithium 6707.8 A spectra of stars with Ca II H and K emission and WLi larger/equal 10 mA. The HD number (or HIP number if no HD number exists) is identified on top of each plot. The wavelength range shown is 25 A. The dotted spectrum is a spectrum of the Sun vertically shifted by 0.01 for comparison purposes (the solar lithium equivalent width is about 2 mA). The vertical line is the average rest wavelength of Li I at 6707.8 A.

Photometry

Fig.4. Differential Strömgren-y light curves of stars with Ca II H and K emission. The HD number (or HIP number or Variable Star designation if no HD number exists) is identified on top of each plot. The left panel in each plot is the observations versus heliocentric Julian date. The right panel is the light curve phased with the best-fit photometric period from Table A3. Error bars for the observations indicate the variances from three individual readings between the variable and the comparison star. Fig.5. Differential Strömgren-y light curves of stars without a period determination. Note that many of these stars are likely photometric variable but the time coverage was just too short to cover a full cycle. Otherwise as in Fig.4.

Appendix Photometry


Ca 2 H&K survey page
Last modified: Friday, 10-Nov-2000
The Stellar Activity Research Group
wasi@astro.univie.ac.at
kstrassmeier@aip.de
February 2000