VV Cep with ESP (R=30000)
Posted: Thu Oct 13, 2016 11:10 am
Here's a spectrum of VV Cep taken with ESP Spectrograp (R=30000). The total bandwidth of ESP is about 3850 to 7600 Å in more than 40 orders.
I didn't have enough flux in the blue to reach the H and K lines of calcium with a good SNR. Next time, I will increase total exposure time.
The full spectrum (orders from 48 to 84)
Comparison with my last spectrum taken in august 2016 with eShel spectrograph (R=11000) corrected from heliocentric velocity
I didn't have enough flux in the blue to reach the H and K lines of calcium with a good SNR. Next time, I will increase total exposure time.
The full spectrum (orders from 48 to 84)
Comparison with my last spectrum taken in august 2016 with eShel spectrograph (R=11000) corrected from heliocentric velocity