Peremennye Zvezdy

Article in PDF
"Peremennye Zvezdy",
Prilozhenie
,
vol. 6, N 6 (2006)

New Algol-Type Eclipsing Binaries in Camelopardalis

A. V. Khruslov
Russia, Tula

ISSN 2221–0474

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


#NameOtherCoord (J2000)TypeMaxMinSystemPeriodEpoch (JD)typeSpCommentL.CurveFind.ChartData
1 GSC 4067-015703 48 32.49, +63 30 40.5EA12.813.4R5.2952451496.90min Comm. 11.jpgchart1.jpgNSVS 2016618 NSVS 2047172
2 GSC 4068-012724 04 00.12, +62 31 54.6EA13.714.6R25.252451485.1min Comm. 22.jpgchart2.jpgNSVS 2026488 NSVS 2055242
3 TYC 4514 01183 14 07 55.12, +77 31 21.7EA11.0511.5R0.751842451503.629min Comm. 33.jpgchart3.jpgNSVS 442682 NSVS 484376
4 GSC 3726-001724 11 48.10, +56 46 26.5EA12.512.95R2.54532451519.26min Comm. 44.jpgchart4.jpgNSVS 2099490
5 GSC 4064-006084 13 35.87, +60 23 11.4EA12.9513.5R3.3722451513.91min Comm. 55.jpgchart5.jpgNSVS 2034117 NSVS 2059422
6 GSC 4086-003424 48 18.86, +64 01 15.8EA12.413.1R0.806882451489.326min Comm. 66.jpgchart6.jpgNSVS 2171764
7 TYC 4084 00286 15 10 18.49, +63 19 50.7EA10.811.1R0.868032451517.85min Comm. 77.jpgchart7.jpgNSVS 2184262
8 GSC 4093-003725 40 15.68, +66 14 30.2EA12.9513.35R0.98792451513.705min Comm. 88.jpgchart8.jpgNSVS 2198395 NSVS 2232002
9 TYC 4098 00132 15 50 55.06, +62 51 46.0EA12.714.3:R7.4682451515.70min Comm. 99.jpgchart9.jpgNSVS 2207263 NSVS 2235122
10 GSC 4107-010046 15 55.76, +66 53 15.5EA13.514.1R1.05412451527.360min Comm. 1010.jpgchart10.jpgNSVS 653342 NSVS 2248809
11 TYC 4105 00762 16 48 27.59, +65 20 56.9EA11.111.65R1.50472451542.667min Comm. 1111.jpgchart11.jpgNSVS 2343228 NSVS 2369318
12 TYC 4531 01142 17 27 23.78, +77 22 22.5EA12.313.7R3.526322451523.31min Comm. 1212.jpgchart12.jpgvis.dat NSVS 605140 NSVS 708115 NSVS 738607

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



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