New Algol-Type Eclipsing Binaries in Camelopardalis

A. V. Khruslov
Russia, Tula

Received:   21.12.2005;   accepted:   15.02.2006
(E-mail for contact: khruslov@bk.ru)

Comments:


1. MinII = 13.0, D = 0.18 P.

2. MinII = 14.2, D = 0.10 P.

3. MinII = 11.20, D = 0.15 P.

4. MinII = 12.95, D = 0.16 P. The primary eclipse might in fact be the secondary.

5. MinII = 13.5:, D = 0.08 P. The primary eclipse might in fact be the secondary. A twice shorter period is possible.

6. MinII = 12.55, D = 0.08 P.

7. MinII = 10.95, D = 0.1 P. Identification with the X-ray source 1RXS J051020.1+631940 is possible.

8. MinII = 13.15:, D = 0.16 P.

9. MinII = 12.8, D = 0.10 P.

10. MinII = 13.8, D = 0.10 P.

11. MinII = 11.5, D = 0.07 P.

12. MinII = 12.5, D = 0.10 P. The period value is based on the NSVS data and our additional visual observations (118 estimates, JD2453500-2453681; comparison stars: TYC 4531 01943 1, TYC 4531 01084 1, TYC 4531 00373 1, magnitudes of the comparison stars were taken from the Tycho-2 catalog; telescope: 15-cm reflector).

Remarks:
I present the discovery of 12 new Algol-type eclipsing binaries (EA) in Camelopardalis. A search for variables was carried out in the publicly available data of the Northern Sky Variability Survey (NSVS, Wozniak et al., 2004, also see http://skydot.lanl.gov/nsvs). These observations were analyzed using the period-search software developed by Dr. V.P. Goranskij for Windows environment. The coordinates were drawn either from the Tycho-2 or 2MASS catalogs.

References:
Wozniak, P.R., Vestrand, W.T., Akerlof, C.W. et al., 2004, Astron. J., 127, 2436