Multiwavelength optical and NIR variability analysis of the Blazar PKS 0027-426

Guise, E.; Hönig, S. F.; Almeyda, T.; Horne, K.; Kishimoto, M.; Aguena, M.; Allam, S.; Andrade-Oliveira, F.; Asorey, J.; Banerji, M.; Bertin, E.; Boulderstone, B.; Brooks, D.; Burke, D. L.; Carnero Rosell, A.; Carollo, D.; Carrasco Kind, M.; Carretero, J.; Costanzi, M.; da Costa, L. N.; Davis, T. M.; De Vicente, J.; Doel, P.; Everett, S.; Ferrero, I.; Flaugher, B.; Frieman, J.; Gandhi, P.; Goad, M.; Gruen, D.; Gruendl, R. A.; Gschwend, J.; Gutierrez, G.; Hinton, S. R.; Hollowood, D. L.; Honscheid, K.; James, D. J.; Johnson, M. A. C.; Kuehn, K.; Lewis, G. F.; Lidman, C.; Lima, M.; Maia, M. A. G.; Malik, U.; Menanteau, F.; Miquel, R.; Morgan, R.; Ogando, R. L. C.; Palmese, A.; Paz-Chinchón, F.; Pereira, M. E. S.; Pieres, A.; Plazas Malagón, A. A.; Sanchez, E.; Scarpine, V.; Serrano, S.; Sevilla-Noarbe, I.; Seymour, N.; Smith, M.; Soares-Santos, M.; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; To, C.; Tucker, B. E.

doi:10.1093/mnras/stab3457

Title: Multiwavelength optical and NIR variability analysis of the Blazar PKS 0027-426

Journal Article · 01 December 2021 · Monthly Notices of the Royal Astronomical Society

DOI: https://doi.org/10.1093/mnras/stab3457 · OSTI ID:1839447

; Hönig, S. F.; Almeyda, T.; Horne, K.; Kishimoto, M.;

; Allam, S.; Andrade-Oliveira, F.;

; Banerji, M.;

; Boulderstone, B.; Brooks, D.; Burke, D. L.;

; Carollo, D.;

;

; da Costa, L. N. more »

ABSTRACT We present multiwavelength spectral and temporal variability analysis of PKS 0027-426 using optical griz observations from Dark Energy Survey between 2013 and 2018 and VEILS Optical Light curves of Extragalactic TransienT Events (VOILETTE) between 2018 and 2019 and near-infrared (NIR) JKs observations from Visible and Infrared Survey Telescope for Astronomy Extragalactic Infrared Legacy Survey (VEILS) between 2017 and 2019. Multiple methods of cross-correlation of each combination of light curve provides measurements of possible lags between optical–optical, optical–NIR, and NIR–NIR emission, for each observation season and for the entire observational period. Inter-band time lag measurements consistently suggest either simultaneous emission or delays between emission regions on time-scales smaller than the cadences of observations. The colour–magnitude relation between each combination of filters was also studied to determine the spectral behaviour of PKS 0027-426. Our results demonstrate complex colour behaviour that changes between bluer when brighter, stable when brighter, and redder when brighter trends over different time-scales and using different combinations of optical filters. Additional analysis of the optical spectra is performed to provide further understanding of this complex spectral behaviour.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Univ. of Michigan, Ann Arbor, MI (United States); University of Michigan, Ann Arbor, MI (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: DES Collaboration

Grant/Contract Number:: AC02-07CH11359; AC02-76SF00515; AC05-00OR22725; SC0019193

OSTI ID:: 1839447

Report Number(s):: FERMILAB-PUB--21-705-PPD; arXiv:2108.13386

Journal Information:: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Journal Issue: 3 Vol. 510; ISSN 0035-8711

Publisher:: Oxford University PressCopyright Statement

Country of Publication:: United Kingdom

Language:: English

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79 ASTRONOMY AND ASTROPHYSICS
galaxies: active
galaxies: jets
quasars: individual: PKS 0027-426

Title: Multiwavelength optical and NIR variability analysis of the Blazar PKS 0027-426

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