Nurtdinova D.N.; Shimansky V.V.; Borisov N.V.; Irtuganov E.N.
(2021)
In this work, we studied spectroscopic and photometric observations of the close binary system Konkoly J064029.1 + 385652.2, which is a candidate for young pre-cataclysmic variables with an sdO subdwarf. Observations were ...