Synchronous UBVR photometry and spectroscopy of DI Cephei

Details Synchronous UBVR photometry and spectroscopy of DI Cephei Synchronous UBVR photometry and spectroscopy of DI Cephei

Feb 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007astl...33..113i&link_type=abstract

Astronomy Letters, Volume 33, Issue 2, pp.113-120

Astronomy and Astrophysics

Astronomy

3

Scientific paper

We present our synchronous spectroscopy and photometry of DI Cep, a classical T Tauri star. The equivalent widths and radial velocities of the individual components and Hα, Hβ, D1 and D2 Na I, and HeI λ5876 Å emission line profiles exhibit variability. We have found a clear positive correlation between the brightness and equivalent width for the Hα and Hβ emission lines. The photometric and spectroscopic data are satisfactorily described in phases of a 9-day period. The expected magnetic field of the star has been estimated using existing magnetospheric models to be 655 1000 G. The star is suspected to be a binary.

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