TY - JOUR AU - Giménez, A. AU - Reglero, V. AU - Castro Rubio, Elisa De AU - Fernández Figueroa, María José PY - 1991 SN - 0004-6361 UR - https://hdl.handle.net/20.500.14352/59715 T2 - Astronomy & Astrophysics AB - New photometric observations, using the uvby and Hß systems of 72 northern-hemisphere active binaries are discussed in order to explain the main characteristics of their spectral light intensity distribution. Values of the parameter δm_1 range from... LA - eng M2 - 563 PB - EDP Sciencies KW - Main-Sequence Stars KW - Photometry KW - Calibrations KW - Systems TI - A uvbyß survey of northern-hemisphere active binaries .2. The m_1 deficiency TY - journal article VL - 248 ER -