The return of the spin period in DW Cnc and evidence of new high state outbursts

Simple item page
dc.contributor.authorDuffy, C.
dc.contributor.authorRamsay, G.
dc.contributor.authorSteeghs, D.
dc.contributor.authorKennedy, Mark R.
dc.contributor.authorWest, R. G.
dc.contributor.authorWheatley, P. J.
dc.contributor.authorDhillon, V. S.
dc.contributor.authorAckley, K.
dc.contributor.authorDyer, M. J.
dc.contributor.authorGalloway, D. K.
dc.contributor.authorGill, S.
dc.contributor.authorActon, J. S.
dc.contributor.authorBurleigh, M. R.
dc.contributor.authorCasewell, S. L.
dc.contributor.authorGoad, M. R.
dc.contributor.authorHenderson, B. A.
dc.contributor.authorTilbrook, R. H.
dc.contributor.authorStrøm, P. A.
dc.contributor.authorAnderson, D. R.
dc.contributor.funderEuropean Southern Observatoryen
dc.contributor.funderUniversity of Warwicken
dc.contributor.funderUniversity of Leicesteren
dc.contributor.funderQueen's University Belfasten
dc.contributor.funderUniversité de Genèveen
dc.contributor.funderDeutsches Zentrum für Luft- und Raumfahrten
dc.contributor.funderUniversity of Cambridgeen
dc.contributor.funderScience and Technology Facilities Councilen
dc.contributor.funderUniversity of Warwicken
dc.contributor.funderMonash Universityen
dc.contributor.funderUniversity of Sheffielden
dc.contributor.funderArmagh Observatory and Planetariumen
dc.contributor.funderNational Astronomical Research Institute of Thailanden
dc.contributor.funderInstituto de Astrofísica de Canariasen
dc.contributor.funderUniversity of Portsmouthen
dc.contributor.funderTurun Yliopistoen
dc.contributor.funderAustralian Research Councilen
dc.contributor.funderNorthern Ireland Executiveen
dc.contributor.funderIrish Research Councilen
dc.date.accessioned2022-10-06T14:29:18Z
dc.date.available2022-10-06T14:29:18Z
dc.date.issued2021-11-26
dc.date.updated2022-10-06T13:58:24Z
dc.description.abstractDW Cnc is an intermediate polar which has previously been observed in both high and low states. Observations of the high state of DW Cnc have previously revealed a spin period at ∼38.6 min, however, observations from the 2018 to 2019 low state showed no evidence of the spin period. We present results from our analysis of 12 s cadence photometric data collected by Next Generation Transit Survey of DW Cnc during the high state which began in 2019. Following the previously reported suppression of the spin period signal, we identify the return of this signal during the high state, consistent with previous observations of it. We identify this as the restarting of accretion during the high state. We further identified three short outbursts lasting ∼1 d in DW Cnc with a mean recurrence time of ∼60 d and an amplitude of ∼1 mag. These are the first outbursts identified in DW Cnc since 2008. Due to the short nature of these events, we identify them not as a result of accretion instabilities but instead either from instabilities originating from the interaction of the magnetorotational instability in the accretion disc and the magnetic field generated by the white dwarf or the result of magnetic gating.en
dc.description.sponsorshipNGTS project at the ESO La Silla Paranal Observatory (The NGTS facility is funded by a consortium of institutes consisting of the University of Warwick, the University of Leicester, Queen's University Belfast, the University of Geneva, the Deutsches Zentrum für Luftund Raumfahrt e.V. (DLR; under the ‘Großinvestition GI-NGTS’), the University of Cambridge, together with the UK Science and Technology Facilities Council (STFC; project reference ST/M001962/1)); The Gravitational-wave Optical Transient Observer (GOTO) project acknowledges the support of the Monash-Warwick Alliance; University of Warwick; Monash University; University of Sheffield; University of Leicester; Armagh Observatory & Planetarium; the National Astronomical Research Institute of Thailand (NARIT); Instituto de Astrofísica de Canarias (IAC); University of Portsmouth; University of Turku, and the UK Science and Technology Facilities Council (STFC grant numbers ST/T007184/1, ST/T003103/1); Australian Research Council Centre of Excellence for Gravitational Wave Discovery ((OzGrav), through project number CE170100004); Northern Ireland Executive (Armagh Observatory & Planetarium is core funded by the Northern Ireland Executive through the Department for Communities. ); STFC (postgraduate studentship); Irish Research Council (Government of Ireland Postdoctoral Fellowship (GOIPD/2021/670: Invisible Monsters))en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationDuffy, C., Ramsay, G., Steeghs, D., Kennedy, M.R., West, R.G., Wheatley, P.J., Dhillon, V.S., Ackley, K., Dyer, M.J., Galloway, D.K., Gill, S., Acton, J.S., Burleigh, M.R., Casewell, S.L., Goad, M.R., Henderson, B.A., Tilbrook, R.H., Strøm, P.A. and Anderson, D.R. (2021) ‘The return of the spin period in DW Cnc and evidence of new high state outbursts’, Monthly Notices of the Royal Astronomical Society, 510(1), pp. 1002–1009. https://doi.org/10.1093/mnras/stab3402en
dc.identifier.doi10.1093/mnras/stab3402en
dc.identifier.eissn1365-2966
dc.identifier.endpage1009en
dc.identifier.issn0035-8711
dc.identifier.issued1en
dc.identifier.journaltitleMonthly Notices of The Royal Astronomical Societyen
dc.identifier.startpage1002en
dc.identifier.urihttps://hdl.handle.net/10468/13753
dc.identifier.volume510en
dc.language.isoenen
dc.publisherOxford University Pressen
dc.relation.projectinfo:eu-repo/grantAgreement/UKRI/STFC/ST/M001962/1/GB/The Next Generation Transit Survey (NGTS): Deployment and Operations/en
dc.relation.projectinfo:eu-repo/grantAgreement/UKRI/STFC/ST/T003103/1/GB/The Gravitational wave Optical Transient Observer/en
dc.relation.projectinfo:eu-repo/grantAgreement/UKRI/STFC/ST/T007184/1/GB/The Gravitational wave Optical Transient Observer/en
dc.relation.projectinfo:eu-repo/grantAgreement/ARC/ARC Centres of Excellence/CE170100004/AU/ARC Centres of Excellence - Grant ID: CE170100004/en
dc.relation.urihttps://doi.org/10.1093/mnras/stab3402
dc.rightsThis article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2021 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.en
dc.subjectAccretionen
dc.subjectAccretion discsen
dc.subjectInstabilitiesen
dc.subjectBinaries: closeen
dc.subjectStars: individual: DW Cncen
dc.subjectNovaeen
dc.subjectCataclysmic variablesen
dc.titleThe return of the spin period in DW Cnc and evidence of new high state outburstsen
dc.typeArticle (peer-reviewed)en
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
stab3402.pdf
Size:
1.09 MB
Format:
Adobe Portable Document Format
Description:
Published version
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
2.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Physics - Journal Articles