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Figure 1: Broadband data. One tick mark corresponds to 1 arcsec. Left: G-band image (broadband 1 nm at 430.5 nm, slit jaw camera), ritght: white light image (broadband 10 nm at 480 nm). Dashed box - region of reference. |
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Figure 2: Spectral data. Example for one scan. One major tickmark corresponds to 1 arcsec. a) Continuum intensity at 430.41 nm, b)- e) Line core intensities of the analyzed absorption lines. Dashed box - region around tracking point of AO system with sufficient correction, solid box - exposures of high quality used for analysis. |
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Figure 3: Individual Case Studies. a), b) Broadband images of the bright point examples in G-band (slit jaw images) and "white light''. c) Variation of G-band (dashed curve) and "white light'' intensity contrast along the slit (solid curve), taken from the broadband images. d) Continuum contrast. e) Contrast of integrated intensity. f) Doppler velocity. g) Bright Point Index. h) Variation in line core intensity. i) Variation in FWHM. k) Variation in equivalent width. Curve coding for d)- k): solid - CH, dashed - Fe I, dashed-dotted - Fe II, dotted - Ca I. |
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Figure 4: Illustration of the velocity measurements. Vertical dashed lines indicate the borders of bright point interior and immediate surroundings, respectively. Top: BPI. Bottom left: intensity contrast, continuum intensity (solid), integrated G-band intensity (dashed). Bottom right: flow velocity. |
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Figure 5:
Four examples of velocity measurements of bright points.
Top: course of the BPI (solid curve, scale to the right) and the
G-band intensity contrast (dashed curve, scale to the left).
Bottom: velocity measurements (solid - CH, dashed - Fe I, dashed-dotted - Fe II).
The plotted error bars correspond to the 1![]() |
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Figure 6:
Correlation diagrams.
Criterion of data point selection is a G-band contrast
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Figure 7: Comparison of selected properties derived from synthetic spectra to observables. The bars indicate the range of values, observed for the bright point interior. Data points shifted to the left (thick symbols) refer to the CH line, data points shifted to the right (thin symbols) to Fe II and the centered symbols refer to Fe I. |
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