Abstract
We describe an instrument we have built and installed at Mees Solar Observatory on Haleakala, Maui, to measure polarization in narrow-band solar images. Observations in Zeemansensitive photospheric lines have been made for nearly all solar active regions since the instrument began operations in 1992. The magnetograph includes a 28-cm aperture telescope, a polarization modulator, a tunable Fabry-Pérot filter, CCD cameras and control electronics. Stokes spectra of a photospheric line are obtained with 7 pm spectral resolution, 1 arc sec spatial resolution over a field 4.7 arc min square, and polarimetric precision of 0.1%. A complete vector magnetogram observation can be made every eight minutes. The flexibility of the instrument encourages diverse observations: besides active region magnetograms we have made, for example, composite vector magnetograms of the full solar disk, and Hα polarization movies of flaring regions.
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Aly, J. J.: 1989, Solar Phys. 120, 19.
Ambastha, A., Hagyard, M. J., and West, E. A.: 1993, Solar Phys. 148, 2777.
Anwar, B., Acton, L. W., Hudson, H. S., Makita, M., McClymont, A. N., and Tsuneta, S.: 1993, Solar Phys. 147, 287.
Canfield, R. C. and Mickey, D. L.: 1989, in J. H. Waite, J. L. Burch, and R. L. Moore (eds.), Solar System Plasma Physics: Theory and Instrumentation, AGU.
Canfield, R. C., de La Beaujardière, J.-F., Fan, Y., Leka, K. D., McClymont, A. N., Metcalf, T. R., Mickey, D. L., Wülser, J.-P., and Lites, B. W.: 1993, Astrophys. J. 411, 362.
Chou, D. Y. and Wang, H.: 1987, Solar Phys. 110, 81.
Chou, D. Y. and Zirin, H.: 1988, Astrophys. J. 333, 420.
Cuperman, S., Démoulin, P., and Semel, M.: 1991, Astron. Astrophys. 245, 285.
de La Beaujardière, J. F., Canfield, R. C., and Leka, K. D.: 1993, Astrophys. J. 411, 378.
Elmore, D. F., Lites, B. W., Tomczyk, S., Skumanich, A. P., Dunn, R. B., Schuenke, J. A., Streander, K. V., Leach, T.W., Chambellan, C. W., Hull, H. K., and Lacey, L. B.: 1992, in D. H. Goldstein and R. A. Chipman (eds.), Polarization Analysis and Measurement SPIE 1746, 22.
Gary, G. A.: 1989, Astrophys. J. Suppl. 69, 323.
Hénoux, J. C., Chambe, G., Smith, D., Tamres, D., Feautrier, N., Rovira, M., and Sahal-Bréchot, S.: 1990, Astrophys. J. Suppl. 73, 303.
Jefferies, J. T. and Mickey, D. L.: 1991, Astrophys. J. 372, 694.
Jefferies, J. T., Lites, B. W., and Skumanich, A.: 1989, Astrophys. J. 343, 920.
Johanneson, A., Bida, T., Lites, B., and Scharmer, G. B.: 1992, Astron. Astrophys. 258, 572.
Keller, C. U. and Lühe, O. v. d.: 1992, Astron. Astrophys. 261, 321.
Leka, K. D., Canfield, R. C., McClymont, A. N., de La Beaujardière, J. F., Fan, Y. H., and Tang, F.: 1993, Astrophys. J. 411, 370.
Leka, K. D., Canfield, R. C., McClymont, A. N., and van Driel-Gesztelyi, L.: 1996, Astrophys. J. 462, 547.
Leka, K. D., van Driel-Gesztelyi, L., Canfield, R. C., Mickey, D. L., and Nitta, N.: 1994, Solar Phys. 155, 301.
Lites, B. W. and Thomas, J. H.: 1985, Astrophys. J. 294, 682.
Metcalf, T., Mickey, D., Canfield, R., and Wülser, J.-P.: 1993, in J. M. Ryan and W. T. Vestrand (eds.), High Energy Solar Phenomena - A New Era of Spacecraft Measurements, American Institute of Physics, Vol. 294, p. 59.
Metcalf, T. R., Mickey, D. L., Wülser, J.-P., Canfield, R. C., Shibasaki, K., Kosugi, T., and Tsuneta, S.: 1996, Astrophys. J., submitted.
Metcalf, T. R., Wülser, J. P., Canfield, R. C., and Hudson, H. S.: 1992, in C. R. Shrader (ed.), The Compton Observatory Science Workshop, NASA CP 3137, 536.
Mickey, D. L.: 1985, Solar Phys. 97, 223.
Penn, M. J. and LaBonte, B. J.: 1993, Astrophys. J. 415, 383.
Sanchez Almeida, J., Collados, M., and Martínez Pillet, V.: 1994, Modulation Schemes for the Polarimeter of the SST, Instituto de Astrofísica de Canarias (Technical note).
Tsuneta, S., Acton, L., Bruner, M., Lemen, J., Brown, W., Carvalho, R., Catura, R., Freeland, S., Jurcevich, B., Morrison, M., Ogawara, Y., Hirayama, T., and Owens, J.: 1991, Solar Phys. 136, 36.
Wang, H.: 1992, Solar Phys. 140, 85.
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Mickey, D.L., Canfield, R.C., LaBonte, B.J. et al. The imaging vector magnetograph at Haleakala. Sol Phys 168, 229–250 (1996). https://doi.org/10.1007/BF00148052
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DOI: https://doi.org/10.1007/BF00148052