TY - JOUR
T1 - Time-resolved spectropolarimetric observations of polars WX LMi and by Cam
AU - Tutar Özdarcan, D.
AU - Smith, P. S.
AU - Keskin, V.
N1 - Funding Information:
1The Image Reduction and Analysis Facility (IRAF) is distributed by the National Optical Astronomy Observatories, which are operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation.
Funding Information:
Observations of WX LMi reported were obtained at the MMT Observatory, a joint facility of the Smithsonian Institution and the University of Arizona. The authors thank Dr G. Grant Williams for providing an observation opportunity. D. Tutar Özdarcan thanks the Scientific and Technological Research Council of Turkey (TÜB˙TAK) for supporting this study through the 2214-A scholarship in 2014. D. Tutar Özdarcan also thanks the University of Arizona, Steward Observatory and MMT Observatory for their warm and kind hospitality during her observing runs and scientific visit in Tucson.
Publisher Copyright:
© 2017 The Authors
PY - 2017/7/1
Y1 - 2017/7/1
N2 - Time-series spectropolarimetric observations of polar WX LMi and asynchronous polar BY Cam are presented. Magnetic field properties, radial velocities and optical polarization are investigated via consecutive observations with good phase sampling during a single orbital cycle. Both systems are found to have a decentred dipole magnetic field configuration. One of the poles of WX LMi has a field strength of 49 MG, while the other pole may have possible field strengths of 69, 104 or 207 MG, depending on the harmonic numbers of the cyclotron humps observed in the circularly polarized spectrum. For BY Cam, a field strength of 168 MG is found for one of the poles, while field strengths of 70, 160 or 212 MG are possible for the other pole.
AB - Time-series spectropolarimetric observations of polar WX LMi and asynchronous polar BY Cam are presented. Magnetic field properties, radial velocities and optical polarization are investigated via consecutive observations with good phase sampling during a single orbital cycle. Both systems are found to have a decentred dipole magnetic field configuration. One of the poles of WX LMi has a field strength of 49 MG, while the other pole may have possible field strengths of 69, 104 or 207 MG, depending on the harmonic numbers of the cyclotron humps observed in the circularly polarized spectrum. For BY Cam, a field strength of 168 MG is found for one of the poles, while field strengths of 70, 160 or 212 MG are possible for the other pole.
KW - Cataclysmic variables
KW - Novae
KW - Stars: individual: BY Cam
KW - Stars: individual: WX LMi
KW - Stars: magnetic field
KW - Techniques: polarimetric
KW - Techniques: spectroscopic
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U2 - 10.1093/mnras/stx518
DO - 10.1093/mnras/stx518
M3 - Article
AN - SCOPUS:85085960061
SN - 0035-8711
VL - 468
SP - 2923
EP - 2931
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -