HD 22064
The file hd22064_apogee.txt contains the average APOGEE spectrum
(R≈22,500) of the primary after subtraction of a model M-dwarf spectrum
to correct for the flux contribution from the M-dwarf companion
(≈4.4 %). This file can be read directly into
iSpec.
The file hd22064_apogee.csv contains the same spectrum in CSV format
plus the reconstructred spectrum described in Maxted, 2023.
N.B. Broad spectral features such as absorption lines due to hydrogen
are badly affected by the processing steps leading to the production of these
spectra. In particular, the cores of the hydrogen Brackett absorption lines
are not accurate and should not be used for analysis.
- Teff = 6763 ± 39 K
- log g (cgs) = 4.184 ± 0.006
- Mass = 1.345 ± 0.031 M⊙
- Radius = 1.554 ± 0.014 R⊙
- [Fe/H] ≈ −0.05 ± 0.15
Photometry
See Maxted et al. (2023) Table 10
References
Dr Pierre Maxted (p.maxted@keele.ac.uk)
Astrophysics Group
Keele University, Staffordshire, ST5 5BG
Tel: +44-(0)1782-733457