RS Ser, V449 Per, MR Del, V593 Cen, and V1095 Her are short-period eclipsing binaries.
For V593 Cen, we followed the previously published suggestion that it probably has a black hole with ...
There are two alternative interpretations, and hence the black hole candidate of V593 Cen remains questionable ...
Furthermore, we revised the photometric solution of V593 Cen and confirmed it as an early-type contact ...