Please use this identifier to cite or link to this item: https://doi.org/10.1051/0004-6361/200913161
DC FieldValue
dc.titleA ∼4.6 h quasi-periodic oscillation in the BL Lacertae PKS 2155-304?
dc.contributor.authorLachowicz, P.
dc.contributor.authorGupta, A.C.
dc.contributor.authorGaur, H.
dc.contributor.authorWiita, P.J.
dc.date.accessioned2014-11-28T01:50:43Z
dc.date.available2014-11-28T01:50:43Z
dc.date.issued2009-11-01
dc.identifier.citationLachowicz, P., Gupta, A.C., Gaur, H., Wiita, P.J. (2009-11-01). A ∼4.6 h quasi-periodic oscillation in the BL Lacertae PKS 2155-304?. Astronomy and Astrophysics 506 (2) : L17-L20. ScholarBank@NUS Repository. https://doi.org/10.1051/0004-6361/200913161
dc.identifier.issn00046361
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/111308
dc.description.abstractWe report a possible detection of an ∼4.6-h quasi-periodic oscillation (QPO) in the 0.3-10 keV emission of the high-energy peaked blazar PKS 2155-304 from a 64 ks observation by the XMM-Newton EPIC/pn detector. We identify a total modulation of ∼5% in the light curve and confirm that nominal period by periodogram, structure function, and wavelet analyses. The limited light curve duration allows the capture of only 3.8 cycles of this oscillation and thus precludes a very strong claim for this QPO, despite a nominally high (≳3σ) statistical significance. We briefly discuss models capable of producing an X-ray QPO of such a period in a blazar. © 2009 ESO.
dc.sourceScopus
dc.subjectBL Lacertae objects: general
dc.subjectBL Lacertae objects: individual: PKS 2155-304
dc.subjectGalaxies: active
dc.subjectX-rays: galaxies
dc.typeArticle
dc.contributor.departmentTEMASEK LABORATORIES
dc.description.doi10.1051/0004-6361/200913161
dc.description.sourcetitleAstronomy and Astrophysics
dc.description.volume506
dc.description.issue2
dc.description.pageL17-L20
dc.description.codenAAEJA
dc.identifier.isiut000271374800005
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.