delta Sco - next periastron
Posted: Wed Mar 02, 2022 9:27 am
On behalf of Anatoly Miroshnichenko:
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Dear colleagues,
Please find attached a presentation about a spectroscopic campaign to observe the next periastron passage of the bright binary system with the primary Be component Delta Scorpii. Please pass this information to any colleagues, who may be interested or could contribute to the campaign.
I'm going to take the first spectrum of the object today and would appreciate it if you can send me reduced data in the form (geocentric wavelength, spectrum not normalized to the local continuum).
Contemporaneous spectroscopy of any radial velocity standard stars (such as HR 4540, HR 5694, or HR 6603) can be helpful for controlling the wavelength calibration.
Thank you!
Best regards,
Anatoly -------------------------------------------
Ernst Pollmann
-------------------------------------------
Dear colleagues,
Please find attached a presentation about a spectroscopic campaign to observe the next periastron passage of the bright binary system with the primary Be component Delta Scorpii. Please pass this information to any colleagues, who may be interested or could contribute to the campaign.
I'm going to take the first spectrum of the object today and would appreciate it if you can send me reduced data in the form (geocentric wavelength, spectrum not normalized to the local continuum).
Contemporaneous spectroscopy of any radial velocity standard stars (such as HR 4540, HR 5694, or HR 6603) can be helpful for controlling the wavelength calibration.
Thank you!
Best regards,
Anatoly -------------------------------------------
Ernst Pollmann