Identifying reliable periods in 2MASSJ09213414-5939068, IGR J16167-4957, and V667 Pup

Simple item page
dc.contributor.authorJoshi, Arti
dc.date.accessioned2025-01-20T17:06:20Z
dc.date.available2025-01-20T17:06:20Z
dc.date.issued2024
dc.description.abstractDetailed timing analyses of three cataclysmic variables, namely 2MASS J09213414-5939068, IGR J16167-4957, and V667 Pup are carried out using the long-baseline and high-cadence optical photometric data from the Transiting Exoplanet Survey Satellite (TESS). Periods of 908.12 +/- 0.05 s and 990.10 +/- 0.06 s are observed in the optical variation of 2MASS J09213414-5939068 that were not found in earlier studies and appear to be probable spin and beat periods of the system, respectively. The presence of multiple periods at spin, beat, and other sidebands indicates that 2MASS J09213414-5939068 likely belongs to an intermediate polar class of magnetic cataclysmic variables that seems to be accreted via a disc-overflow mechanism. Clear evidence of a period of 582.45 +/- 0.04 s is found during the TESS observations of IGR J16167-4957, which can be interpreted as the spin period of the system. Strong modulation at this frequency supports its classification as an intermediate polar, where accretion may primarily be governed by a disc. The dominance of the spin pulse unveils the disc-fed dominance accretion in V667 Pup, but the detection of the previously unknown beat period of 525.77 +/- 0.03 s suggests that a portion of the material is also accreted through a stream. Moreover, the double-peaked structure observed in the optical spin pulse profile of V667 Pup suggests the possibility of a two-pole accretion geometry, where each pole accretes at a different rate and is separated by 180 degrees.
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361/202348563
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://doi.org/10.1051/0004-6361/202348563
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90780
dc.identifier.wosidWOS:001185810900036
dc.language.isoen
dc.revistaAstronomy & astrophysics
dc.rightsacceso restringido
dc.subjectstars: individual: 2MASS J09213414-5939068
dc.subjectstars: individual: IGR J16167-4957
dc.subjectstars: individual: V667 Pup
dc.subjectstars: magnetic field
dc.subjectnovae, cataclysmic variables
dc.titleIdentifying reliable periods in 2MASSJ09213414-5939068, IGR J16167-4957, and V667 Pup
dc.typeartículo
dc.volumen683
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Identifying reliable periods in.pdf
Size:
3.39 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas