A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign

Basit Öğe Kaydı
dc.authoridBlay, Pere/0000-0003-2018-1059
dc.authoridTomov, Toma/0000-0001-6957-7623
dc.authoridER, HUSEYIN/0000-0003-1339-3045
dc.authoridOgloza, Waldemar/0000-0002-6293-9940
dc.authoridJelinek, Martin/0000-0003-3922-7416
dc.authoridBaran, Andrzej/0000-0001-6446-6617
dc.authoridGafton, Emanuel/0000-0003-0781-6638
dc.contributor.authorZola, S.
dc.contributor.authorValtonen, M.
dc.contributor.authorBhatta, G.
dc.contributor.authorGoyal, A.
dc.contributor.authorDebski, B.
dc.contributor.authorBaran, A.
dc.contributor.authorKrzesinski, J.
dc.date.accessioned2025-01-27T20:31:53Z
dc.date.available2025-01-27T20:31:53Z
dc.date.issued2016
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractWe analyse the light curve in the R band of the blazar OJ287, gathered during the 2015/2016 observing season. We did a search for quasi-periodic oscillations (QPOs) using several methods over a wide range of timescales. No statistically significant periods were found in the high-frequency domain both in the ground-based data and in Kepler observations. In the longer-period domain, the Lomb-Scargle periodogram revealed several peaks above the 99% significance level. The longest one-about 95 days-corresponds to the innermost stable circular orbit (ISCO) period of the more massive black hole. The 43-day period could be an alias, or it can be attributed to accretion in the form of a two-armed spiral wave.
dc.description.sponsorshipNCN [2013/09/B/ST9/00599]; GACR [13-33324S]; NSF [AST-1211916]; NASA [NNX12AF12G]; Christopher R. Redlich Fund; Direct For Mathematical & Physical Scien; Division Of Astronomical Sciences [1517030] Funding Source: National Science Foundation; NASA [NNX12AF12G, 75114] Funding Source: Federal RePORTER
dc.description.sponsorshipThis work was partially supported by the NCN grant No. 2013/09/B/ST9/00599. The Czech team acknowledges GACR grant No. 13-33324S. The Berkeley team is grateful for NSF grant AST-1211916, NASA grant NNX12AF12G, the TABASGO Foundation, and the Christopher R. Redlich Fund. Research at Lick Observatory (KAIT) is partially supported by a generous gift from Google.
dc.identifier.doi10.3390/galaxies4040041
dc.identifier.issn2075-4434
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85041040779
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.3390/galaxies4040041
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23295
dc.identifier.volume4
dc.identifier.wosWOS:000391004000009
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherMdpi Ag
dc.relation.ispartofGalaxies
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectgalaxies: active
dc.subjectBL Lacertae objects: individual (OJ287)
dc.subjectsupermassive black holes
dc.titleA Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu