Advertisement

Solar Physics

, Volume 280, Issue 1, pp 51–67 | Cite as

Solar Intranetwork Magnetic Elements: Intrinsically Weak or Strong?

  • C. L. Jin
  • J. X. Wang
  • Z. X. Xie
Article

Abstract

The high spatial resolution observation of a quiet region taken with the Solar Optical Telescope/Spectro-Polarimeter aboard the Hinode spacecraft is analyzed. Based on the Milne–Eddington atmospheric model, the vector magnetic field of the quiet region is derived by fitting the full Stokes profiles of the Fe i 630 nm line pair. We extract intranetwork (IN) region from the quiet region and identify 5058 IN magnetic elements, and study their magnetic properties. As a comparison, the magnetic properties of network (NT) region are also analyzed. The main results are as follows. i) The IN area displays a predominance of weak (hecto-gauss) field concentration, i.e., 99.8 % of IN area shows the weak field. Moreover, the vector magnetic field exhibits concentration toward horizontal direction. However, for the NT region, we discover the coexistence of weak field and strong (kilo-gauss, kG) field. In the IN and NT regions, the filling factor shows almost the same probability distribution function with the peak at about 0.28. ii) All IN magnetic elements show field strength less than 1 kG. However, some NT elements display the coexistence of weak field and strong field. Regardless of NT or IN elements, about 20 % of elements lies in the Doppler blue-shift region. Our results imply that not all magnetic elements lie in the down-draft sites.

Keywords

Granulation Magnetic fields, photosphere Spectral line, theory 

Notes

Acknowledgements

We appreciate the valuable suggestions from Prof. Bruce Lites. The authors are grateful to the Hinode team for providing the data. Hinode is a Japanese mission developed and launched by ISAS/JAXA, with NAOJ as a domestic partner and NASA and STFC (UK) as international partners. It is operated by these agencies in cooperation with ESA and NSC (Norway). Hinode SOT/SP Inversions were conducted at National Center for Atmospheric Research (NCAR) under the framework of the Community Spectro-polarimetric Analysis Center (CSAC; http://www.csac.hao.ucar.edu/ ). The authors gratefully acknowledge the support of K.C. Wong Education Foundation, Hong Kong. This work is supported by the National Natural Science Foundations of China (11003024, 10873020, 40731056, 40890161, 10973019, 40974112, 11025315, 11003026 and 10921303), and the National Basic Research Program of China (G2011CB811403).

References

  1. Beckers, J.M.: 1981, In: Jordan, S. (ed.) The Sun as a Star, NASA SP-450, 11. Google Scholar
  2. de Wijn, A.G., Lites, B.W., Berger, T.E., Frank, Z.A., Tarbell, T.D., Ishikawa, R.: 2008, Astrophys. J. 684, 1419. Google Scholar
  3. Domínguez Cerdeña, I., Sánchez Almeida, J., Kneer, F.: 2003, Astrophys. J. Lett. 582, L55. ADSCrossRefGoogle Scholar
  4. Domínguez Cerdeña, I., Sánchez Almeida, J., Kneer, F.: 2003, Astron. Astrophys. 407, 741. ADSCrossRefGoogle Scholar
  5. Domínguez Cerdeña, I., Sánchez Almeida, J., Kneer, F.: 2006, Astrophys. J. 636, 496. ADSCrossRefGoogle Scholar
  6. Dravins, D., Lindegren, L., Nordlund, A.: 1981, Astron. Astrophys. 96, 345. ADSGoogle Scholar
  7. Gary, G.A., Hagyard, M.J.: 1990, Solar Phys. 126, 21. ADSCrossRefGoogle Scholar
  8. Georgoulis, M.K.: 2005, Astrophys. J. Lett. 629, L69. ADSCrossRefGoogle Scholar
  9. Ichimoto, K., Lites, B., Elmore, D., Suematsu, Y., Tsuneta, S., Katsukawa, Y., et al.: 2008, Solar Phys. 249, 233. ADSCrossRefGoogle Scholar
  10. Jin, C.L., Wang, J.X., Zhou, G.P.: 2009, Astrophys. J. 697, 693. ADSCrossRefGoogle Scholar
  11. Keller, C.U., Deubner, F.L., Egger, U., Fleck, B., Povel, H.P.: 1994, Astron. Astrophys. 286, 626. ADSGoogle Scholar
  12. Khomenko, E.V., Collados, M., Solanki, S.K., Lagg, A., Trujillo Bueno, J.: 2003, Astron. Astrophys. 408, 1115. ADSCrossRefGoogle Scholar
  13. Kosugi, T., Matsuzaki, K., Sakao, T., Shimizu, T., Sone, Y., Tachikawa, S., et al.: 2007, Solar Phys. 243, 3. ADSCrossRefGoogle Scholar
  14. Lin, H.S., Rimmele, T.: 1999, Astrophys. J. 514, 448. ADSCrossRefGoogle Scholar
  15. Lites, B.W.: 2011, Astrophys. J. 737, 52. ADSCrossRefGoogle Scholar
  16. Lites, B.W., Socas-Navarro, H.: 2004, Astrophys. J. 613, 600. ADSCrossRefGoogle Scholar
  17. Lites, B.W., Kubo, M., Socas-Navarro, H., Berger, T., Frank, Z., Shine, R., et al.: 2008, Astrophys. J. 672, 1237. ADSzbMATHCrossRefGoogle Scholar
  18. Livingston, W.C., Harvey, J.: 1975, Bull. Am. Astron. Soc. 7, 346. ADSGoogle Scholar
  19. López Ariste, A.L., Tomczyk, S., Casini, R.: 2006, Astron. Astrophys. 454, 663. ADSCrossRefGoogle Scholar
  20. Martínez González, M.J., Collados, M., Ruiz Cobo, B.: 2006, Astron. Astrophys. 456, 1159. ADSCrossRefGoogle Scholar
  21. Martínez González, M.J., Collados, M., Ruiz Cobo, B., Beck, C.: 2008, Astron. Astrophys. 477, 953. ADSCrossRefGoogle Scholar
  22. Martínez Pillet, V., Lites, B.W., Skumanich, A.: 1997, Astrophys. J. 474, 810. ADSCrossRefGoogle Scholar
  23. Orozco Suárez, D., Bellot Rubio, L.R., del Toro Iniesta, J.C.: 2007, Astrophys. J. Lett. 662, L31. ADSCrossRefGoogle Scholar
  24. Orozco Suárez, D., Bellot Rubio, L.R., del Toro Iniesta, J.C., Tsuneta, S., Lites, B., Ichimoto, K., et al.: 2007a, Publ. Astron. Soc. Japan 59, 837. ADSGoogle Scholar
  25. Orozco Suárez, D., Bellot Rubio, L.R., del Toro Iniesta, J.C., Tsuneta, S., Lites, B.W., Ichimoto, K., et al.: 2007b, Astrophys. J. Lett., 670, L61. ADSCrossRefGoogle Scholar
  26. Orozco Suárez, D., Bellot Rubio, L.R., Vögler, A., del Toro Iniesta, J.C.: 2010, Astron. Astrophys. 518, 2. ADSCrossRefGoogle Scholar
  27. Ruedi, I., Solanki, S.K., Livingston, W., Stenflo, J.O.: 1992, Astron. Astrophys. 263, 323. ADSGoogle Scholar
  28. Salembier, P., Marque, F.: 1999, IEEE Trans. Circuits Syst. Video Technol. 9, 1147. CrossRefGoogle Scholar
  29. Salembier, P., Pardas, M.: 1994, IEEE Trans. Image Process. 3, 639. ADSCrossRefGoogle Scholar
  30. Sánchez Almeida, J.: 1997, Astrophys. J. 491, 993. ADSCrossRefGoogle Scholar
  31. Sánchez Almeida, J., Lites, B.W.: 2000, Astrophys. J. 532, 1215. ADSCrossRefGoogle Scholar
  32. Sánchez Almeida, J., Martínez González, M.: 2011, In: Kuhn, J.R., Harrington, D.M., Lin, H., Berdyugina, S.V., Trujillo-Bueno, J., Keil, S.L., Rimmele, T. (eds.) Solar Polarization 6 CS-437, Astron. Soc. Pac., San Francisco, 451. Google Scholar
  33. Sánchez Almeida, J., Domínguez Cerdeña, I., Kneer, F.: 2003, Astrophys. J. Lett. 597, L177. ADSCrossRefGoogle Scholar
  34. Sánchez Almeida, J., Landi Degl’Innocenti, E., Martinez Pillet, V., Lites, B.W.: 1996, Astrophys. J. 466, 537. ADSCrossRefGoogle Scholar
  35. Sánchez Almeida, J., Márquez, I., Bonet, J.A., Domínguez Cerdeña, I., Muller, R.: 2004, Astrophys. J. 609, 91. CrossRefGoogle Scholar
  36. Sánchez Almeida, J., Bonet, J.A., Viticchié, B., Del Moro, D.: 2010, Astrophys. J. Lett. 715, L26. ADSCrossRefGoogle Scholar
  37. Schrijver, C.J., Title, A.M.: 2003, Astrophys. J. 597, 165. ADSCrossRefGoogle Scholar
  38. Schrijver, C.J., Zwaan, C.: 2000, Solar and Stellar Magnetic Activity, Cambridge Univ. Press, Cambridge, 112. CrossRefGoogle Scholar
  39. Shimizu, T., Nagata, S., Tsuneta, S., Tarbell, T., Edwards, C., Shine, R., et al.: 2008, Solar Phys. 249, 221. ADSCrossRefGoogle Scholar
  40. Simon, G.W., Leighton, R.B.: 1964, Astrophys. J. 140, 1120. ADSCrossRefGoogle Scholar
  41. Smithson, R.C.: 1975, Bull. Am. Astron. Soc. 7, 346. ADSGoogle Scholar
  42. Solanki, S.K.: 1986, Astron. Astrophys. 168, 311. ADSGoogle Scholar
  43. Solanki, S.K., Stenflo, J.O.: 1984, Astron. Astrophys. 140, 185. ADSGoogle Scholar
  44. Stenflo, J.O.: 1973, Solar Phys. 32, 41. ADSCrossRefGoogle Scholar
  45. Stenflo, J.O.: 2009, Mem. Soc. Astron. Ital. 80, 690. ADSGoogle Scholar
  46. Stenflo, J.O., Harvey, J.W.: 1985, Solar Phys. 95, 99. ADSCrossRefGoogle Scholar
  47. Stenflo, J.O., Solanki, S.K., Harvey, J.W.: 1987a, Astron. Astrophys. 173, 167. ADSGoogle Scholar
  48. Stenflo, J.O., Solanki, S.K., Harvey, J.W.: 1987b, Astron. Astrophys. 305, 316. Google Scholar
  49. Suematsu, Y., Tsuneta, S., Ichimoto, K., Shimizu, T., Otsubo, M., Katsukawa, Y., et al.: 2008, Solar Phys. 249, 197. ADSCrossRefGoogle Scholar
  50. Tsuneta, S., Ichimoto, K., Katsukawa, Y., Nagata, S., Otsubo, M., Shimizu, T., et al.: 2008, Solar Phys. 249, 167. ADSCrossRefGoogle Scholar
  51. Tu, C.Y., Zhou, C., Marsch, E., Xia, L.D., Zhao, L., Wang, J.X., Wilhelm, K.: 2005, Science 308, 519. ADSCrossRefGoogle Scholar
  52. Viticchié, B., Sánchez Almeida, J.: 2011, Astron. Astrophys. 530, 14. ADSCrossRefGoogle Scholar
  53. Viticchié, B., Sánchez Almeida, J., Del Moro, D., Berrilli, F.: 2011, Astron. Astrophys. 526, 60. ADSCrossRefGoogle Scholar
  54. Wang, J.X., Wang, H.M., Tang, France, et al.: 1995, Solar Phys. 160, 277. ADSCrossRefGoogle Scholar
  55. Wang, J.X., Shi, Z.X., Wang, H.N., Lue, Y.P.: 1996, Astrophys. J. 456, 861. ADSCrossRefGoogle Scholar
  56. Wang, J.X., Zhou, G.P., Wen, Y.Y., Zhang, Y.Z., Wang, H.N., Deng, Y.Y., Zhang, J., Harra, L.K.: 2006, Chin. J. Astron. Astrophys. 6, 247. ADSCrossRefGoogle Scholar
  57. Westendorp Plaza, C., del Toro Iniesta, J.C., Ruiz Cobo, B., Martinez Pillet, V., Lites, B.W., Skumanich, A.: 1998, Astrophys. J. 494, 453. ADSCrossRefGoogle Scholar
  58. Wiehr, E.: 1978, Astron. Astrophys. 69, 279. ADSGoogle Scholar
  59. Xie, Z.X., Yu, D.R., Zhang, J., Yang, S.H., Hu, Q.H.: 2009, Astron. Astrophys. 505, 801. ADSCrossRefGoogle Scholar
  60. Yang, S.H., Zhang, J., Li, T., Ding, M.D.: 2011, Astrophys. J. 726, 49. ADSCrossRefGoogle Scholar
  61. Yelles Chaouche, L., Moreno-Insertis, F., Martínez Pillet, V., Wiegelmann, T., Bonet, J.A., Knölker, M., et al.: 2011, Astrophys. J. 727, 30. ADSCrossRefGoogle Scholar
  62. Zhang, J., Lin, G.H., Wang, J.X., Wang, H.M., Zirin, H.: 1998, Solar Phys. 178, 245. ADSCrossRefGoogle Scholar
  63. Zhao, M., Wang, J.X., Jin, C.L., Zhou, G.P.: 2009, Res. Astron. Astrophys. 9, 933. ADSCrossRefGoogle Scholar
  64. Zhou, G.P., Wang, J.X., Jin, C.L.: 2010, Solar Phys. 267, 63. ADSCrossRefGoogle Scholar
  65. Zirin, H., Popp, B.: 1989, Astrophys. J. 340, 571. ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  1. 1.Key Laboratory of Solar Activity, National Astronomical ObservatoriesChinese Academy of SciencesBeijingChina
  2. 2.Shenzhen Graduate SchoolHarbin Institute of TechnologyShenzhenChina

Personalised recommendations