CrH molecular bands in the spectra of late-type dwarfs

The identification and analysis of CrH molecular bands in the spectra of la te M dwarfs and brown dwarfs are considered. The spectrum of this molecule is computed in the JOLA approximation. The spectrum of the young brown dwar f Teide 1 is studied in the interval lambda lambda 6650-9000 Angstrom, whic h contains the (0-0) band of the A(6)Sigma((+))-X(6)Sigma((+)) system. An u pper limit for the oscillator strength of the CrH molecular bands for this system is estimated by comparing observed and computed spectra for Teide 1 (f(e)=0.001-0.002). Problems in modeling CrH molecular absorption bands in the spectra of other, cooler objects (L dwarfs) are discussed.