Published 2021
| Version v1
Journal article
Photometric study of the blazar OJ287
- 1. Department of Astronomy, Faculty of Physics, University of Sofia, Sofia (Bulgaria)
Description
We present the results from observations of the blazar OJ 287 in the B, V, R and I bands during December 2015 - February 2020. The obtained light curve of OJ 287 showed long-term timescale variability with a large amplitude. We found untypical variations in the color indexes (B-V) and (V-R) in short-term period. A dominating black body radiation from the accretion disc and the Broad-Line Region (BLR) emission lines appearance in the blazar spectrum might be the probable reasons for these variations. Key Words: AGN, astronomy, blazar, observations, photometry. (author)
Availability note (English)
Available from: https://www.bjp-bg.com/papers/bjp2021_3_276-286.pdfAdditional details
Identifiers
Publishing Information
- Journal Title
- Bulgarian Journal of Physics (Print)
- Journal Volume
- 48
- Journal Issue
- 3
- Journal Page Range
- p. 276-286
- ISSN
- 1310-0157
INIS
- Country of Publication
- Bulgaria
- Country of Input or Organization
- Bulgaria
- INIS RN
- 54032427
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- AMPLITUDES; ASTRONOMY; BLACKBODY RADIATION; GALAXY NUCLEI; PHOTOMETRY; SPECTRA; VARIATIONS; VISIBLE RADIATION
- Descriptors DEC
- ELECTROMAGNETIC RADIATION; RADIATIONS
Optional Information
- Contract/Grant/Project number
- BNSF grant DN18/10-11.12.2017 and National RI Roadmap Project D01-383/18.12.2020
- Notes
- 4 figs., 2 tabs., 12 refs.