UVES and FEROS spectra of HD 1909 (HR 89, AV Scl)

                                                    

Spectroscopic Binary: HgMn + AOV (?) 
Parameters from Wahlgren, Hubrig, Dolk (2002) Bull. of Variable stars 5290
For the primary (P): Teff=12400K, logg=4.0, vturb=0.0 km/s, vsini=12.0 km/s
For the secondary (S): Teff=9000K, logg=4.0, vturb=0.0 km/s, vsini=12.0 km/s


Primary:
No solar abundances: He       -1.82   [-0.71]
                      O       -3.60   [-0.39]
                      Mg      -4.96   [-0.50]
                      Al      -6.07   [-0.50]
                      Si      -4.92   [-0.43]
                      Ti      -6.20   [+0.82]
                      Mn      -4.75   [+1.90]
                      Fe      -4.44   [+0.10]
                      Y       -7.50   [+2.30]
                      Zr      -6.80   [+2.64]
                      Hg (80) -5.10   [+5.81]

Secondary:
                      Solar abundances
                     




                                                    
Paper: 
"The Ca II infrared triplet as indicator of anomalous Ca isotopic mixture in HgMn stars"
Castelli, F., Hubrig, S., 2004, A&A 421,L1-L4