Two rare magnetic cataclysmic variables with extreme cyclotron features identified in the Sloan Digital Sky Survey

Paula Szkody; Scott F. Anderson; Gary Schmidt; Patrick B. Hall; Bruce Margon; Antonino Miceli; Mark Subbarao; James Frith; Hugh Harris; Suzanne Hawley; Brandon Lawton; Ricardo Covarrubias; Kevin Covey; Xiaohui Fan; Thomas Murphy; Vijay Narayanan; Sean Raymond; Armin Rest; Michael A. Strauss; Christopher Stubbs; Edwin Turner; Wolfgang Voges; Amanda Bauer; J. Brinkmann; Gillian R. Knapp; Donald P. Schneider

doi:10.1086/345418

Two rare magnetic cataclysmic variables with extreme cyclotron features identified in the Sloan Digital Sky Survey

Paula Szkody, Scott F. Anderson, Gary Schmidt, Patrick B. Hall, Bruce Margon, Antonino Miceli, Mark Subbarao, James Frith, Hugh Harris, Suzanne Hawley, Brandon Lawton, Ricardo Covarrubias, Kevin Covey, Xiaohui Fan, Thomas Murphy, Vijay Narayanan, Sean Raymond, Armin Rest, Michael A. Strauss, Christopher StubbsEdwin Turner, Wolfgang Voges, Amanda Bauer, J. Brinkmann, Gillian R. Knapp, Donald P. Schneider

Research output: Contribution to journal › Article › peer-review

Abstract

Two newly identified magnetic cataclysmic variables discovered in the Sloan Digital Sky Survey (SDSS), SDSS J155331.12+551614.5 and SDSS J132411.57+032050.5, have spectra showing highly prominent, narrow, strongly polarized cyclotron humps with amplitudes that vary on orbital periods of 4.39 and 2.6 hr, respectively. In the former, the spacing of the humps indicates the third and fourth harmonics in a magnetic field of ∼60 MG. The narrowness of the cyclotron features and the lack of strong emission lines imply very low temperature plasmas and very low accretion rates, so that the accreting area is heated by particle collisions rather than accretion shocks. The detection of rare systems like these exemplifies the ability of the SDSS to find the lowest accretion rate close binaries.

Original language	English (US)
Pages (from-to)	902-906
Number of pages	5
Journal	Astrophysical Journal
Volume	583
Issue number	2 I
DOIs	https://doi.org/10.1086/345418
State	Published - Feb 1 2003
Externally published	Yes

Keywords

Novae, cataclysmic variables

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Online availability

10.1086/345418

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Szkody, P., Anderson, S. F., Schmidt, G., Hall, P. B., Margon, B., Miceli, A., Subbarao, M., Frith, J., Harris, H., Hawley, S., Lawton, B., Covarrubias, R., Covey, K., Fan, X., Murphy, T., Narayanan, V., Raymond, S., Rest, A., Strauss, M. A., ... Schneider, D. P. (2003). Two rare magnetic cataclysmic variables with extreme cyclotron features identified in the Sloan Digital Sky Survey. Astrophysical Journal, 583(2 I), 902-906. https://doi.org/10.1086/345418

Szkody, P, Anderson, SF, Schmidt, G, Hall, PB, Margon, B, Miceli, A, Subbarao, M, Frith, J, Harris, H, Hawley, S, Lawton, B, Covarrubias, R, Covey, K, Fan, X, Murphy, T, Narayanan, V, Raymond, S, Rest, A, Strauss, MA, Stubbs, C, Turner, E, Voges, W, Bauer, A, Brinkmann, J, Knapp, GR & Schneider, DP 2003, 'Two rare magnetic cataclysmic variables with extreme cyclotron features identified in the Sloan Digital Sky Survey', Astrophysical Journal, vol. 583, no. 2 I, pp. 902-906. https://doi.org/10.1086/345418

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abstract = "Two newly identified magnetic cataclysmic variables discovered in the Sloan Digital Sky Survey (SDSS), SDSS J155331.12+551614.5 and SDSS J132411.57+032050.5, have spectra showing highly prominent, narrow, strongly polarized cyclotron humps with amplitudes that vary on orbital periods of 4.39 and 2.6 hr, respectively. In the former, the spacing of the humps indicates the third and fourth harmonics in a magnetic field of ∼60 MG. The narrowness of the cyclotron features and the lack of strong emission lines imply very low temperature plasmas and very low accretion rates, so that the accreting area is heated by particle collisions rather than accretion shocks. The detection of rare systems like these exemplifies the ability of the SDSS to find the lowest accretion rate close binaries.",

keywords = "Novae, cataclysmic variables",

author = "Paula Szkody and Anderson, {Scott F.} and Gary Schmidt and Hall, {Patrick B.} and Bruce Margon and Antonino Miceli and Mark Subbarao and James Frith and Hugh Harris and Suzanne Hawley and Brandon Lawton and Ricardo Covarrubias and Kevin Covey and Xiaohui Fan and Thomas Murphy and Vijay Narayanan and Sean Raymond and Armin Rest and Strauss, {Michael A.} and Christopher Stubbs and Edwin Turner and Wolfgang Voges and Amanda Bauer and J. Brinkmann and Knapp, {Gillian R.} and Schneider, {Donald P.}",

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T1 - Two rare magnetic cataclysmic variables with extreme cyclotron features identified in the Sloan Digital Sky Survey

AU - Szkody, Paula

AU - Anderson, Scott F.

AU - Schmidt, Gary

AU - Hall, Patrick B.

AU - Margon, Bruce

AU - Miceli, Antonino

AU - Subbarao, Mark

AU - Frith, James

AU - Harris, Hugh

AU - Hawley, Suzanne

AU - Lawton, Brandon

AU - Covarrubias, Ricardo

AU - Covey, Kevin

AU - Fan, Xiaohui

AU - Murphy, Thomas

AU - Narayanan, Vijay

AU - Raymond, Sean

AU - Rest, Armin

AU - Strauss, Michael A.

AU - Stubbs, Christopher

AU - Turner, Edwin

AU - Voges, Wolfgang

AU - Bauer, Amanda

AU - Brinkmann, J.

AU - Knapp, Gillian R.

AU - Schneider, Donald P.

PY - 2003/2/1

Y1 - 2003/2/1

N2 - Two newly identified magnetic cataclysmic variables discovered in the Sloan Digital Sky Survey (SDSS), SDSS J155331.12+551614.5 and SDSS J132411.57+032050.5, have spectra showing highly prominent, narrow, strongly polarized cyclotron humps with amplitudes that vary on orbital periods of 4.39 and 2.6 hr, respectively. In the former, the spacing of the humps indicates the third and fourth harmonics in a magnetic field of ∼60 MG. The narrowness of the cyclotron features and the lack of strong emission lines imply very low temperature plasmas and very low accretion rates, so that the accreting area is heated by particle collisions rather than accretion shocks. The detection of rare systems like these exemplifies the ability of the SDSS to find the lowest accretion rate close binaries.

AB - Two newly identified magnetic cataclysmic variables discovered in the Sloan Digital Sky Survey (SDSS), SDSS J155331.12+551614.5 and SDSS J132411.57+032050.5, have spectra showing highly prominent, narrow, strongly polarized cyclotron humps with amplitudes that vary on orbital periods of 4.39 and 2.6 hr, respectively. In the former, the spacing of the humps indicates the third and fourth harmonics in a magnetic field of ∼60 MG. The narrowness of the cyclotron features and the lack of strong emission lines imply very low temperature plasmas and very low accretion rates, so that the accreting area is heated by particle collisions rather than accretion shocks. The detection of rare systems like these exemplifies the ability of the SDSS to find the lowest accretion rate close binaries.

KW - Novae, cataclysmic variables

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Two rare magnetic cataclysmic variables with extreme cyclotron features identified in the Sloan Digital Sky Survey

Abstract

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