التفاصيل البيبلوغرافية
| العنوان: |
Optical Outburst of the Gamma-Ray Blazar S4 0954+658 in March-April 2011 |
| المؤلفون: |
Larionov, V. M., Jorstad, S. G., Marscher, A. P., Morozova, D. A., Troitsky, I. S., Blinov, D. A., Kopatskaya, E. N., Larionova, E. G. |
| سنة النشر: |
2011 |
| المجموعة: |
ArXiv.org (Cornell University Library) |
| مصطلحات موضوعية: |
Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: |
We present optical photopolarimetric observations of the BL Lac object S4 0954+658 obtained with the 70-cm telescope in Crimea, 40-cm telescope in St.Petersburg, and 1.8-m Perkins telescope at Lowell Observatory (Flagstaff, Az). After a faint state with a brightness level R ~17.6 mag registered in the first half of January 2011, the optical brightness of the source started to rise and reached ~14.8 mag during the middle of March, showing flare-like behavior. The most spectacular case of intranight variability was observed during the night of 2011 March 9, when the blazar brightened by ~0.7 mag within ~7 hours. During the rise of the flux the position angle of optical polarization rotated smoothly over more than 200 degrees. S4 0954+658 is a gamma-ray blazar with gamma-ray flux of (5{\pm}3)x10^{-10} phot/cm^2/s according to the Fermi 11-month Catalog Extragalactic Sources. Our analysis of contemporaneous Fermi LAT data does not show any sign of increased gamma-ray activity above the detection threshold except for an elevated flux on 2011 March 5, JD2455626, coincident with the local optical maximum. ; Comment: 2011 Fermi Symposium proceedings - eConf C110509 |
| نوع الوثيقة: |
text |
| اللغة: |
unknown |
| العلاقة: |
http://arxiv.org/abs/1110.5861Test |
| الإتاحة: |
http://arxiv.org/abs/1110.5861Test |
| رقم الانضمام: |
edsbas.D756582 |
| قاعدة البيانات: |
BASE |
