Migration of Ca II H bright points in the internetwork

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Volume 563 (March 2014)

A&A, 563 (2014) A101

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Table 3

Comparison of the mean values of diffusion index γ and diffusion coefficient D of small magnetic elements obtained in this study with some of those in the literature.

Reference	Origin	Telescope/	Spatial	Feature^a	Lifetime^b^,^c	γ ^c	D ^b^,^c
	of data	Spacecraft	resolution		[s]		[km²s^-1]

This study	Stratospheric	Sunrise/SuFI	0.̋14	IMBP	461	1.69	257
	balloon
Chitta et al. (2012)	Ground	SST/CRISP	–	IMBP	180–240	1.59	(≈90)
Abramenko et al. (2011)	Ground	BBSO/NST	0.̋11	IMBP^d	(10–2000)	1.48	(19–320)
Manso Sainz et al. (2011)	Space	Hinode/SOT	0.̋32^e	IMBP	<900	0.96	195
Utz et al. (2010)	Space	Hinode/SOT	0.̋22^f	IMBP	150	(≈1)	350
Chae et al. (2008)	Space	Hinode/SOT^g	–	ME^d	–	–	0.87
Lawrence et al. (2001)	Ground	SVST	0.̋23	NMBP	9–4260	1.13	–
Cadavid et al. (1999)	Ground	SVST	0.̋23^h	NMBP	18–1320	0.76	–
					1500–3450	1.10	–
Hagenaar et al. (1999)	Space	SOHO/MDI	2.̋3ⁱ	MFC	< 1.0 × 10⁴	(≈1)	70–90
					> 3.0 × 10⁴		220–250
Berger et al. (1998)	Ground	SVST	≈0.̋2	NMBP^d	(100–3800)	1.34	60
Lawrence & Schrijver (1993)	Ground	BBSO	–	ME^d	–	0.92	250

Notes.

^(a)

IMBP: Internetwork Magnetic Bright Point; NMBP: Network MBP; MFC: Magnetic Flux Concentration; ME: Magnetic Element.

^(b)

Mean values; otherwise a range is given whenever it was available.

^(c)

Values in parentheses are not directly reported in the papers, but are computed from the given plots/tables.

^(d)

See their paper for other types of regions.

^(e)

From Martínez González & Bellot Rubio (2009).

^(f)

From Table 1 of Abramenko et al. (2011).

^(g)

From SOT magnetograms with the smallest pixel size of 116 km.

^(h)

From Lawrence et al. (2001). Cadavid et al. (1999) reported a much lower resolution element of 0.̋4.

⁽ⁱ⁾

For five-minute averaged and spatially smoothed high-resolution magnetograms.

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