Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...261..451b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 261, no. 2, p. 451-456.
Astronomy and Astrophysics
Astrophysics
12
Binary Stars, Near Infrared Radiation, T Tauri Stars, Visible Spectrum, Charge Coupled Devices, Light Scattering, Stellar Envelopes, Stellar Luminosity
Scientific paper
We present high-resolution images of the T Tauri star DD Tau obtained at optical and near-IR wavelengths between 0.5 and 3.9 microns. DD Tau is resolved into two intensity peaks, with a separation of 0.56 +/- 0.01 arcsec along PA 184 +/- 2 deg. The photometry of the two components suggests that DD Tau is a binary system consisting of two active T Tauri stars of similar luminosity. We also find evidence for an extended nebulosity, most conspicuous on the eastern and western sides of the system, which may be a reflection nebula illuminated by the two stars. Our CCD images also include the T Tauri star CZ Tau, which lies 30 arcsec away from DD Tau. CZ Tau is found to be elongated with a characteristic size of 0.4 arcsec FWHM in PA 82 deg and 0.33 arcsec FWHM in PA 172 deg.
Bouvier Jerome
Cabrit Silvie
Tessier Eric
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