AAS 200th meeting, Albuquerque, NM, June 2002
Session 38. Solar Photosphere, Chromosphere and Transition Region
Display, Tuesday, June 4, 2002, 10:00am-6:30pm, SW Exhibit Hall

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[38.04] Properties of Faculae and Pores

Y. Xu, C. Denker, T. Spirock (BBSO/NJIT), J. Qiu (NJIT), J. Jing, J. Ma, H. Wang (BBSO/NJIT)

In August/September 1999, we obtained high resolution images of several active regions at the Big Bear Solar Observatory. The data set consists of near-infrared (1560 nm), Ca I (610.3 nm), and broad-band (520 nm) images. In addition, we took magnetograms with the improved digital vector magnetograph (DVMG). All data were obtained quasi-simultaneously, i. e., the temporal evolution of small-scale features is negligible. By using speckle masking technique, we reconstructed images of diffraction limit resolution. In this presentation, we present our preliminary results from this high quality data set focussing on the following three topics:

1. Comparison of contrasts of faculae and pores in three wavelengths regimes which cover three different solar atmopsheric heights. 2. Center-to-limb variation of facular contrasts. 3. The relationship between magnetic field strength and the contrasts of faculae and pores.

The author(s) of this abstract have provided an email address for comments about the abstract: yx2@njit.edu

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Bulletin of the American Astronomical Society, 34
© 2002. The American Astronomical Soceity.