Search: (WFRF:(Gu Minfeng))
> (2022) >
Multiband optical v...
Multiband optical variability of the TeV blazar PG 1553+113 in 2019
-
- Dhiman, Vinit (author)
- Aryabhatta Res Inst Observat Sci ARIES, Naini Tal 263001, India.;Pt Ravishankar Shukla Univ, Sch Studies Phys & Astrophys, Amanaka GE Rd, Raipur 492010, India.
-
- Gupta, Alok C. (author)
- Aryabhatta Res Inst Observat Sci ARIES, Naini Tal 263001, India.;Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China.
-
- Kurtanidze, Sofia O. (author)
- Abastumani Observ, Abastumani 0301, Georgia.;Heidelberg Univ, Zent Astron, Landessternwarte, Konigstuhl 12, D-69117 Heidelberg, Germany.
-
show more...
-
- Eglitis, I (author)
- Univ Latvia, Inst Astron, Jelgavas 3, LV-1004 Riga, Latvia.
-
- Strigachev, A. (author)
- Bulgarian Acad Sci, Inst Astron, 72 Tsarigradsko Shosse Blvd, Sofia 1784, Bulgaria.;Bulgarian Acad Sci, Natl Astron Observ, 72 Tsarigradsko Shosse Blvd, Sofia 1784, Bulgaria.
-
- Damljanovic, G. (author)
- Astron Observ, Volgina 7, Belgrade 11060, Serbia.
-
- Wiita, Paul J. (author)
- Coll New Jersey, Dept Phys, 2000 Pennington Rd, Ewing, NJ 08628 USA.
-
- Gu, Minfeng (author)
- Abastumani Observ, Abastumani 0301, Georgia.;Heidelberg Univ, Zent Astron, Landessternwarte, Konigstuhl 12, D-69117 Heidelberg, Germany.
-
Gaur, Haritma (author)
-
- Vince, Oliver (author)
- Astron Observ, Volgina 7, Belgrade 11060, Serbia.
-
- Bachev, R. (author)
- Bulgarian Acad Sci, Inst Astron, 72 Tsarigradsko Shosse Blvd, Sofia 1784, Bulgaria.;Bulgarian Acad Sci, Natl Astron Observ, 72 Tsarigradsko Shosse Blvd, Sofia 1784, Bulgaria.
-
- Bisen, D. P. (author)
- Pt Ravishankar Shukla Univ, Sch Studies Phys & Astrophys, Amanaka GE Rd, Raipur 492010, India.
-
- Ibryamov, S. (author)
- Univ Shumen, Dept Phys & Astron, 115 Univ Str, Shumen 9700, Jiangsu, Bulgaria.
-
- Ivanidze, R. Z. (author)
- Abastumani Observ, Abastumani 0301, Georgia.,Shanghai Frontiers Sci Ctr Gravitat Wave Detect, 800 Dongchuan Rd, Shanghai 200240, Peoples R China.
-
- Jovanovic, Miljana D. (author)
- Astron Observ, Volgina 7, Belgrade 11060, Serbia.
-
- Kurtanidze, Omar M. (author)
- Abastumani Observ, Abastumani 0301, Georgia.;Heidelberg Univ, Zent Astron, Landessternwarte, Konigstuhl 12, D-69117 Heidelberg, Germany.;Kazan Fed Univ, Engelhardt Astron Observ, Tatarstan, Russia.
-
- Nikolashvili, M. G. (author)
- Abastumani Observ, Abastumani 0301, Georgia.;Heidelberg Univ, Zent Astron, Landessternwarte, Konigstuhl 12, D-69117 Heidelberg, Germany.
-
- Semkov, E. (author)
- Bulgarian Acad Sci, Inst Astron, 72 Tsarigradsko Shosse Blvd, Sofia 1784, Bulgaria.;Bulgarian Acad Sci, Natl Astron Observ, 72 Tsarigradsko Shosse Blvd, Sofia 1784, Bulgaria.
-
- Spassov, B. (author)
- Bulgarian Acad Sci, Inst Astron, 72 Tsarigradsko Shosse Blvd, Sofia 1784, Bulgaria.;Bulgarian Acad Sci, Natl Astron Observ, 72 Tsarigradsko Shosse Blvd, Sofia 1784, Bulgaria.
-
- Stojanovic, M. (author)
- Astron Observ, Volgina 7, Belgrade 11060, Serbia.
-
- Villarroel, Beatriz (author)
- Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),Instituto de Astrofisica de Canarias, Spain,Nordita SU
-
- Xu, Haiguang (author)
- Shanghai Frontiers Sci Ctr Gravitat Wave Detect, 800 Dongchuan Rd, Shanghai 200240, Peoples R China.;Shanghai Jiao Tong Univ, Sch Phys & Astron, 800 Dongchuan Rd, Shanghai 200240, Peoples R China.
-
- Zhang, Zhongli (author)
- Shanghai Frontiers Sci Ctr Gravitat Wave Detect, 800 Dongchuan Rd, Shanghai 200240, Peoples R China.
-
show less...
-
Aryabhatta Res Inst Observat Sci ARIES, Naini Tal 263001, India;Pt Ravishankar Shukla Univ, Sch Studies Phys & Astrophys, Amanaka GE Rd, Raipur 492010, India. Aryabhatta Res Inst Observat Sci ARIES, Naini Tal 263001, India.;Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China. (creator_code:org_t)
- 2022-12-20
- 2022
- English.
-
In: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 519:2, s. 2796-2811
- Related links:
-
https://doi.org/10.1...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
show less...
Abstract
Subject headings
Close
- We report the flux and spectral variability of PG 1553 + 113 on intra-night (IDV) to short-term time-scales using BVRI data collected over 91 nights from 28 February to 8 November 2019 employing 10 optical telescopes: three in Bulgaria, two each in India and Serbia, and one each in Greece, Georgia, and Latvia. We monitored the blazar quasi-simultaneously for 16 nights in the V and R bands and 8 nights in the V, R, I bands and examined the light curves (LCs) for intra-day flux and colour variations using two powerful tests: the power-enhanced F-test and the nested ANOVA test. The source was found to be significantly (>99 per cent) variable in 4 nights out of 27 in R-band, 1 out of 16 in V-band, and 1 out of 6 nights in I-band. No temporal variations in the colours were observed on IDV time-scale. During the course of these observations the total variation in R-band was 0.89 mag observed. We also investigated the spectral energy distribution (SED) using B-, V-, R-, and I-band data. We found optical spectral indices in the range of 0.878 +/- 0.029 to 1.106 +/- 0.065 by fitting a power law (F-nu proportional to nu(-alpha)) to these SEDs of PG 1553 + 113. We found that the source follows a bluer-when-brighter trend on IDV time-scales. We discuss possible physical causes of the observed spectral variability.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- galaxies: active
- BL Lacertae objects: general
- BL Lacertae objects: individual: PG 1553+113
- quasars: individual
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Dhiman, Vinit
-
Gupta, Alok C.
-
Kurtanidze, Sofi ...
-
Eglitis, I
-
Strigachev, A.
-
Damljanovic, G.
-
show more...
-
Wiita, Paul J.
-
Gu, Minfeng
-
Gaur, Haritma
-
Vince, Oliver
-
Bachev, R.
-
Bisen, D. P.
-
Ibryamov, S.
-
Ivanidze, R. Z.
-
Jovanovic, Milja ...
-
Kurtanidze, Omar ...
-
Nikolashvili, M. ...
-
Semkov, E.
-
Spassov, B.
-
Stojanovic, M.
-
Villarroel, Beat ...
-
Xu, Haiguang
-
Zhang, Zhongli
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Astronomy Astrop ...
- Articles in the publication
-
Monthly notices ...
- By the university
-
Royal Institute of Technology
-
Stockholm University