Table 4 Comparison of the radial power-law index \(\alpha\)
From: Heliocentric distance dependence of zodiacal light observed by Hayabusa2#
Value of \(\alpha\) | Coverage of \(\alpha\) | Method | Observation wavelength | Observation site | Instrument | References |
|---|---|---|---|---|---|---|
\(1-1.5\) | 1–3.3 au | ZL observation | B, R bands | Interplanetary space | Pioneer 10/11 | Hanner et al. (1976) |
\(1.3 \pm 0.05\) | 0.3–1 au | ZL observation | U, B, V bands | Interplanetary space | Helios 1/2 | Leinert et al. (1981) |
\(1.34 \pm 0.022\) | >1 au | ZL observation | 1.25–240 \(\mu\)m | Geocentric orbit | COBE | Kelsall et al. (1998) |
1.22 | >1 au | ZL observation | 1.25–240 \(\mu\)m | Geocentric orbit | COBE | Wright (1998) |
\(1.45 \pm 0.05\) | 0.06–0.6 au | F-corona | 0.5–0.9 \(\mu\)m | Lunar orbit | Clementine | Hahn et al. (2002) |
\(1.59 \pm 0.02\) | >1 au | ZL observation | 9 \(\mu\)m, 18 \(\mu\)m | Geocentric orbit | AKARI | Kondo et al. (2016) |
\({1.34^{1}}\) | 1–3.3 au | ZL observation | B, R bands | Interplanetary space | Pioneer 10/11 | Matsumoto et al. (2018) |
\(1.31 - 1.35\) | 0.07–0.45 au | F-corona | 0.63–0.73 \(\mu\)m | Heliocentric orbit | STEREO-A | Stenborg et al. (2018) |
1.31 | 0.1–0.4 au | F-corona | 0.49-0.74 \(\mu\)m | Interplanetary space | PSP | Howard et al. (2019) |
2 | 0.17–0.7 au | Dust counting | – | Interplanetary space | PSP | Szalay et al. (2020) |
\(1.30 \pm 0.08\) | 0.76–1.06 au | ZL observation | 0.39-0.84 \(\mu\)m | Interplanetary space | Hayabusa2# | This work |