Additional UBVRI and JHKL photometry of T Tauri stars in the Taurus region

Abstract

view Abstract Citations (76) References (33) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Additional UBVRI and JHKL photometry of T Tauri stars in the Taurus region. Rydgren, A. E. ; Vrba, F. J. Abstract We present nearly simultaneous UB VRI and JHKL photometry for 21 T Tauri stars in the Taurus region and three stars in northern Orion. Some nonsimultaneous UBVRJ and JHKL photometry of T Tauri stars in the Taurus and NGC 2264 regions is also given. These new data reinforce the conclusion from Rydgren, Schmelz, and Vrba (1982) that the T Tauri loci in the (J - H, H - K) and (H - K, K - L) diagrams are relatively narrow, implying a limited range in maximum temperature for the associated circumstellar dust. From an analysis of the available data for five actively variable T Tauri stars we find that (1) the slopes d (B - V )/d V and d (V - I)/dV differ significantly between stars, (2) the j - H, H - K, and K - L colors tend to become larger when the star is fainter at V, and (3) the amplitude of variations at L is much smaller than the amplitude at V. The resulting constraints on models for T Tauri variability are considered. Publication: The Astronomical Journal Pub Date: July 1983 DOI: 10.1086/113387 Bibcode: 1983AJ.....88.1017R Keywords: Stellar Color; Stellar Envelopes; Stellar Spectrophotometry; T Tauri Stars; Taurus Constellation; Chromosphere; Infrared Stars; Interstellar Extinction; Orion Constellation; Stellar Magnitude; Stellar Temperature; Ubv Spectra; Astronomy full text sources ADS | data products SIMBAD (71)