Abstract
We present observations of O vi 1032 Å line profiles obtained with the SUMER instrument on SOHO extending from the solar disk to 1.5 R ⊙ above the limb in the north polar coronal hole. Variations of the intensity and linewidth in the polar plume and inter-plume regions are investigated. We find an anti-correlation between the intensity and the linewidth in the plume and inter-plume regions with detailed plume structures been seen out to 1.5 R ⊙. Possible implications regarding the magnetic topologies of these two regions and related heating mechanisms are discussed. The O vi linewidth measurements are combined with UVCS output to provide an overview of its variations with height extending up to 3.5 R ⊙. We find a linear increase of the linewidth from 1 to 1.2 R ⊙, then a plateau followed by a sharp increase around 1.5 R ⊙.
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References
Antonucci, E. et al.: 1997, ASP Conf. Series 118, 273.
Banerjee, D, Teriaca, L., Doyle, J. G., and Wilhelm, K.: 1998, Astron. Astrophys. 339, 208.
Charbonneau, P.: 1995, Astrophys. J. Suppl. 101, 309.
Cranmer, S. R., Field, G. B., and Kohl, J. L.: 1999, Astrophys. J. 518, 937.
Cranmer, S. R., Kohl, J. L., Noci, G., Antonucci, E., Tondello, G., Huber, M. C. E., Strachan, L., Panasyuk, A. V., Gardner, L. D., Romali, M., Fineschi, S., Dobrzycka, D., Raymond, J. C., Nicolosi, P., Siegmund, O. H. W., Spadaro, D., Benna, C., Ciaravella, A., Giordano, S., Habbal, S. R., Karovska, M., Li, X., Martin, R., Michels, J. G., Modigliani, A., Naletto, G., O'Neal, R. H., Pernechele, C., Poletto, G., Smith, P. L., and Suleiman, R. M.: 1999, Astrophys. J. 511, 481.
David, C., Gabriel A. H., Bely-Dubau, F., Fludra, A., Lemaire, P. and Wilhelm, K.: 1998, Astron. Astrophys. 336, L90.
DeForest, C. E., Hoeksema, J. T., Gurman, J. B., Thompson, B. J., Plunkett, S. P., Howard, R., Harrison, R., and Hassler, D. M.: 1997, Solar Phys. 175, 393.
Dodero, M. A., Antonucci, E., Giordano, S., and Martin, R.: 1998, Solar Phys. 183, 77.
Doyle, J. G.,, Banerjee, D., and Perez, M. E.: 1998, Solar Phys. 181, 91.
Doyle, J. G., Teriaca, L., and Banerjee, D.: 1999, Astron. Astrophys. 349, 956.
Esser, R., Fineschi, S., Dobrzycka, D., Habbal, S. R., Edgar, R. J., Raymond, J. C., Kohl, J., and Guhathakurta, M.: 1999, Astrophys. J. 510, L63.
Hassler, D. M., Wilhelm K., Lemaire, P., and Schühle, U.: 1997, Solar Phys. 175, 375.
Kohl, J. L., Noci, G., Antonucci, E., Tondello, G., Huber, Cranmer, S. R., Strachan, L., Panasyuk, A. V., S., Gardner, L. D., Romoli, M., Fineschi, S. et al.: 1998, Astrophys. J. 501, L127.
Koutchmy, S. and Bocchialini, K.: 1997, Robotic Exploration Close to the Sun, AIP Conf. Proc. 385, p. 137.
Lemaire P., Wilhelm K., Curdt W. et al.: 1997, Solar Phys. 170, 105.
Mariska, J. T.: 1992, The Solar Transition Region, Cambridge University Press, Cambridge.
McIntosh, S.W., Diver D. A., Judge P. G., Charbonneau P., Ireland J., and Brown J. C: 1998, Astron. Astrophys. Suppl. 132, 145.
Moses, D., Clette, F., Delaboudiniére, J.-P. et al.: 1997, Solar Phys. 175, 571.
Noci, G., Kohl, J. L., Antonucci, E. et al.: 1997, Adv. Space Res. 20, 2219.
Peter H.: 1999, Astrophys. J. 516, 490.
Peter H. and Judge P. G.: 1999, Astrophys. J. 522, L77.
Siegmund, O. H. W., Gummin, M. A., Stock, J. M., Marsh, D., Raffanti, T., Sasseen, T., Tom, J., Welsh, B., Gaines, G. A., Jelinsky, P., and Hull, J., 1994, Proc SPIE 2280, 89.
Teriaca, L., Banerjee, D., and Doyle, J. G.: 1999, Astron. Astrophys. 349, 636.
Tu, C.-Y, March, E., Wilhelm, K., and Curdt, W.: 1998, Astrophys. J. 503, 475.
Warren, H. P., Mariska, J. T., Wilhelm, K., and Lemaire, P.: 1997, Astrophys. J. 484, L91.
Wilhelm, K., Curdt, W., Marsch, E., Schühle, U., Lemaire, P., Gabriel, A., Vial, J.-C., Grewing, M., Huber, M. C. E., Jordan, S. D., Poland, A. I., Thomas, R. J., Kuhne, M., Timothy, J. G., Hassler, D. M., and Siegmund, O. H. W.: 1997a, Solar Phys. 162, 189.
Wilhelm, K., Lemaire, P., Curdt, W., Schühle, U., Marsch, E., Poland, A. I., Jordan, S. D., Thomas, R. J., Hassler, D. M., Huber, M. C. E., Vial, J.-C., Kuhne, M., Siegmund, O. H. W., Gabriel, A., Timothy, J. G., Grewing, M., Feldman, U., Hollandt, J., and Brekke, P.: 1997b, Solar Phys. 170, 75.
Wilhelm, K., Marsch, E., Dwivedi, B. N., Hassler, D. M., Lemaire, P., Gabriel, A., and Huber, M. C. E.: 1998, Astrophys. J. 500, 1023.
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Banerjee, D., Teriaca, L., Doyle, J. et al. Polar Plumes and Inter-plume regions as observed by SUMER on SOHO. Solar Physics 194, 43–58 (2000). https://doi.org/10.1023/A:1005253413687
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DOI: https://doi.org/10.1023/A:1005253413687