Zet Tau HD37202 B4IIIpe V=3.00 vsini=220 km/s d=128 pc

To Download HPOL reticon Zet Tau data(FITS files):
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Polarizations and Position Angles of Field Stars within 5 degrees of Zet Tau

Field Stars

References

• First Ultraviolet Spectropolarimetry of Be Stars from WUPPE 1991-- K. S. Bjorkman, K. H. Nordsieck,A. D. Code, C. M. Anderson, B. L. Babler, G. C. Clayton, A. M. Magalhaes, M. R. Meade, M. A. Nook, R. E. Schulte-Ladbeck, M. Taylor, and B. A. Whitney, Ap. J. Letters, 383, L67.
• Deriving the Geometry of Be Star Circumstellar Envelopes from Continuum Spectropolarimetry I. The Case of Zeta Tauri 1997-- K. Wood, K. S. Bjorkman, J. E. Bjorkman, Ap.J., 477, 926.
• Constraints on the Geometry of Circumstellar Envelopes: Optical Interferometric and Spectropolarimetric Observations of Seven Be Stars 1997-- A. Quirrenbach, K. S. Bjorkman, J. E. Bjorkman, C. A. Hummel, D. F. Buscher, J. T. Armstrong, D. Mozurkewich, N. M. Elias II and B. L. Babler, Ap. J., 479, 477.

Plots containing all the HPOL reticon observations

%Pol vs Time	PA vs Time	Q vs U

Information on Individual HPOL reticon observations

Zet Tau HPOL reticon Observing Log:

                                                                                     intr BJ(pol)
Name     Date     MJD     ExpT   V-Pol(%) V-Err(%) V-PA(deg) HaEqW Vintr-Pol Vintr-PA high low  red
Zet Tau  890227 47584.05  6554    1.337    0.002    28.9     14.5
         891004 47803.36   154    1.337    0.005    30.9     11.4
         891012 47811.30  9830    1.373    0.001    30.7      9.8
         900211 47933.01  9011    1.307    0.001    32.3     13.3
         900218 47940.01  4915    1.381    0.001    31.8     12.9
         900220 47942.04  3277    1.344    0.001    31.7     12.6
         900903 48137.35  4915    1.504    0.001    29.9     16.9
         901117 48212.19  8192    1.331    0.001    31.7     17.3
         901209 48234.22 11469    1.274    0.001    31.3     16.5
         910211 48298.26  3277    1.449    0.002    30.7     16.4
         910304 48319.05  8192    1.505    0.001    30.9     17.8
         910928 48527.34  6758    1.590    0.001    30.3     19.2
         911007 48536.35  4915    1.528    0.001    31.4     16.8
         911008 48537.27  6554    1.515    0.001    31.1     17.7
         911213 48603.29  6554    1.328    0.001    32.2     21.8
         921025 48920.35  4915    1.414    0.002    32.1     20.0
         941112 49668.30  4096    1.363    0.002    32.1     22.6
         941203 49689.17  2867    1.425    0.003    32.0     19.7
         941229 49715.09  3277    1.514    0.002    32.6     21.5

Zet Tau Lyot (1979-1980) Observing Log:

Name     Date   MJD       Pol(%)    Err(%)   PA(deg)   MeanWave WavelRange   HaEqW 
Zet Tau  790917 44133.21*  1.10      0.02      32.6      5996A  4800A-7600A   em
         790920 44136.21*  0.94      0.03      32.2      5996A  4800A-7600A   em
         790922 44138.21*  1.12      0.02      30.7      5996A  4800A-7600A   em
         790925 44141.21*  1.16      0.03      31.4      5996A  4800A-7600A   em
         791202 44209.25*  1.03      0.03      32.4      5996A  4800A-7600A   em
         791203 44210.25*  1.06      0.02      33.7      5996A  4800A-7600A   em
         800126 44264.25*  1.09      0.02      35.9      5996A  4800A-7600A   em
         800318 44316.25*  1.06      0.04      33.4      5996A  4800A-7600A   em
         800320 44318.25*  1.03      0.02      31.9      6330A  5000A-8200A   em

* Assumes observation began at midnight local time