2003ApJ...583..902S

Query : 2003ApJ...583..902S

2003ApJ...583..902S - Astrophys. J., 583, 902-906 (2003/February-1)

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

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., STUBBS C., TURNER E., VOGES W., BAUER A., BRINKMANN J., KNAPP G.R. and SCHNEIDER D.P.

Abstract (from CDS):

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.

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Journal keyword(s): Stars: Novae, Cataclysmic Variables - Stars: Individual: Alphanumeric: SDSS J155331.12+551614.5 - Stars: Individual: Alphanumeric: SDSS J132411.57+032050.5

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* EQ Cet CV* 01 28 52.5445391424 -23 39 43.959940812   19.06 17.97 17.71   ~ 37 0
2 V* VV Pup CV* 08 15 06.8009599464 -19 03 17.765706024     13.90     M7V 413 0
3 HS 0922+1333 RS* 09 24 55.9281822011 +13 20 52.187007940     16.42     ~ 33 0
4 RX J1007.5-2017 CV* 10 07 34.6526107392 -20 17 32.451317412     18.0     ~ 33 0
5 V* WX LMi CV* 10 26 27.4933431861 +38 45 02.655728034   18   16.77   M5.0 56 0
6 V* PZ Vir CV* 13 24 11.5773233808 +03 20 50.414201160   22.47 21.37 20.5   M5:V 28 0
7 V* MQ Dra CV* 15 53 31.1198078328 +55 16 14.475178272     17.35     M5Ve 57 0

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