› Forums › Spectroscopy › Model-based Interpretation of Cepheid spectra › residual offset
14 November 2019 at 9:02 pm
#581598
![](https://britastro.org/wp-content/uploads/2016/11/picture-146-1478110706-80x80.jpg)
Participant
I wondered if the residual +1km/s offset in the fitted curve in fig 3 could be due to the mean motion of the system but it is catalogued as being in the other direction at -1.8km/s (or is this already included in the correction in table 1?)
Cheers
Robin