| Optical Photometric Observations of 7-Ray Loud Blazars |
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| 作者姓名： | O. M. Kurtanidze M. G. Nikolashvili A. C. Gupta |
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| 作者单位： | Abstumani Observatory，383762 Abstumani，Republic of Georgia，Abstumani Observatory，383762 Abstumani，Republic of Georgia，Harish-Chandra Research Institute，Chhatnag Road，Jhunsi，Allahabad - 211019，India，Landessternwarte Heidelberg-Koenigshtuhl，D-69117，Heidelberg，Germany Astrophysikalisches Institute Potsdam，An der Sternwarte 16，D-14482，Germany |
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| 基金项目： | Supported by the National Natural Science Foundation of China |
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| 摘 要： | We report results of our optical photometric observations of ten gamma-ray loud blazers, namely: 0219+428 (3C66A), PKS 0420-014 (OA 129), S5 0716+714, 0754+100 (OI 090.4), 0827+243 (OJ248), 1652+398 (Mrk 501), 2200+420 (BL Lacertae), 2230+114 (CTA 102), 2251+158 (3C 454.3) and 2344+514. The observations were carried out in September-October, 2000 using the 70 cm optical telescope at Abstumani Observatory, Georgia. We found intra-day variations in 0420-014, S5 0716+714, BL Lacertae and CTA 102. A variation of 0.3 magnitude over a time scale of about 3 hours was observed in the R passband in BL Lacertae on JD 2451827. We did not detect any variation in 3C 66A, Mrk 501, or 3C 454.3 during our observations. Nor did we detect any clear evidence of variation in 1ES 2344+514 during our two weeks' observing run of the TeV gamma-ray source.
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Optical Photometric Observations of 7-Ray Loud Blazars |
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| O. M. Kurtanidze,M. G. Nikolashvili,A. C. Gupta.Optical Photometric Observations of 7-Ray Loud Blazars[J].Chinese Journal of Astronomy and Astrophysics,2004(2). |
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| Authors: | Jun-Hui Fan O M Kurtanidze M G Nikolashvili A C Gupta Jiang-Shui Zhang and Yu-Hai Yuan
Center for Astrophysics Guangzhou University Guangzhou fjh@gzhueducn
Abstumani Observatory Abstumani Republic of Georgia
Landessternwarte Heidelberg-Koenigshtuhl D- Heidelberg Germany
Astrophysikalisches Institute Potsdam An der Sternwarte D- Germany
Harish-Chandra Research Institute Chhatnag Road Jhunsi Allahabad - India agupta@mriernetin |
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| Institution: | Jun-Hui Fan,O. M. Kurtanidze,M. G. Nikolashvili,A. C. Gupta,Jiang-Shui Zhang and Yu-Hai Yuan
Center for Astrophysics,Guangzhou University,Guangzhou 510400, fjh@gzhu.edu.cn
Abstumani Observatory,383762 Abstumani,Republic of Georgia
Landessternwarte Heidelberg-Koenigshtuhl,D-69117,Heidelberg,Germany
Astrophysikalisches Institute Potsdam,An der Sternwarte 16,D-14482,Germany
Harish-Chandra Research Institute,Chhatnag Road,Jhunsi,Allahabad - 211019,India, agupta@mri.ernet.in |
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| Abstract: | We report results of our optical photometric observations of ten gamma-ray loud blazers, namely: 0219+428 (3C66A), PKS 0420-014 (OA 129), S5 0716+714, 0754+100 (OI 090.4), 0827+243 (OJ248), 1652+398 (Mrk 501), 2200+420 (BL Lacertae), 2230+114 (CTA 102), 2251+158 (3C 454.3) and 2344+514. The observations were carried out in September-October, 2000 using the 70 cm optical telescope at Abstumani Observatory, Georgia. We found intra-day variations in 0420-014, S5 0716+714, BL Lacertae and CTA 102. A variation of 0.3 magnitude over a time scale of about 3 hours was observed in the R passband in BL Lacertae on JD 2451827. We did not detect any variation in 3C 66A, Mrk 501, or 3C 454.3 during our observations. Nor did we detect any clear evidence of variation in 1ES 2344+514 during our two weeks' observing run of the TeV gamma-ray source. |
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| Keywords: | galaxies: active - Blazars: individual: PKS 0219+428 (3C 66A) PKS 0420-014 (OA129) S5 0716+714 0754+100 (OI090 4) 0827+243 (OJ248) 1652+398 (Mrk 501) 2200+420 (BL Lacertae) 2230+114 (CTA102) 2251+158 (3C 454 3) and 1ES 2344+514 - galax |
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