Table 1
Open flux and heliospheric flux measurements estimated from the literature.
| Reference | Epoch | Φopen (nT AU2) | ΦH (nT AU2) | Comments | ||
|---|---|---|---|---|---|---|
| Present study | 2018–2020 | 1.2–1.8 |  |
Parker Solar Probe, Fig. 7 | ||
| Smith (2011) | 2006–2007 | 2–2.5 | Ulysses, estimated from Fig. 4 | |||
| Erdős & Balogh (2012) | Various | ~3 (solar min) | Ulysses (1990–2008), ACE (1998–2009), Helios (1975–1980), Conclusion 1 - 1997/1998 solar min | |||
| Erdős & Balogh (2014) | 1990– | 3.5–6.5 (1991–1992), | Ulysses, OMNI, estimated from | |||
| 2010 | 1.8–2.2 (1997–1998) | Fig. 9. | ||||
| 3–5 (2003–2004) | ||||||
| 0.8–1.5 (2009–2010) | ||||||
| Linker et al. (2017) | 2010 | 0.73 ± 0.1 (PFSS 2.5 R⊙) | 1.7–2.2 | Various magnetograms, OMNI, | ||
| 0.9 ± 0.1 (PFSS 2.0 R⊙) | Mean and SD computed from | |||||
| 1.3 ± 0.1 (MHD) | Table 1 | |||||
| Owens et al. (2017) | 1999– | 3.1–3,3 (2003–2004) | ACE, estimated from Fig. 5 (red | |||
| (Strahl method) | 2011 | 1.4–1.6 (2009–2010) | curve) | |||
| Owens et al. (2017) | 1999– | 2.8 (2003–2004) | ACE, estimated from Fig. 5 (blue | |||
| (Kinematic method) | 2011 | 1.0–1.2 (2009–2010) | curve) | |||
| Wallace et al. (2019) | 1990– | 2.5–4.6 (1991-1992) | 3.9–5.0 (1991–1992) | NSO, ADAPT, OMNI, estimated | ||
| 2014 | 1.8–2.1 (1997–1998) | 1.4–2.1 (1997–1998) | from Fig. 6 | |||
| 1.8–2.5 (2003–2004) | 3.2–3.9 (2003–2004) | |||||
| 0.7–1.1 (2009–2010) | 1.1-1.2 (2009–2010) | |||||
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