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b Per radial velocity

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Robin Leadbeater's picture
Last seen: 8 min 44 sec ago
Joined: 05/03/2014 - 00:50
b Per radial velocity

I tried to cover theĀ  eclipse of the triple system b Per (AAVSO alert 761 - Component C eclipsing the close AB pair ) but bad weather meant only a couple of low SNR results during the actual eclipse period. The apparent precision of the out of eclipse radial velocities is pleasing though and the couple of measurements managed during the eclipse period are tantalisingly high (Change in the component blend in the spectrum or Rossiter-McLaughlin effect perhaps ?

(LHIRES R~8000 4430-4580A 10 min exposures, calibration lamp spectra before and after each exposure)

RV measured using cross correlation. RV standard HD 10780 for comparison

maximusatov's picture
Last seen: 2 days 1 hour ago
Joined: 13/02/2019 - 10:58