by Holger Isenberg » Sat Jan 28, 2023 9:31 pm
This is a major discovery, made through the WISPR visual light panchromatic camera on the Parker Solar Probe (PSP):
A permanent ring near the orbit of Phaeton, crossing it 10° before perihelion and at 1° offset at periapsis. What keeps it there against the solar wind, or renews it in place, is not yet known. I doubt that it's particles left there from some singular event. Looks more like a permanent process.
The same type of ring was seen in the Venus orbit.
Karl Battams 2022: Continued PSP/WISPR Observations of a Phaethon-related Dust Trail
https://arxiv.org/abs/2207.12239
video:
https://wispr.nrl.navy.mil/encounter13-summary
Stenborg 2021: Pristine PSP/WISPR Observations of the Circumsolar Dust Ring near Venus's Orbit
https://iopscience.iop.org/article/10.3 ... 357/abe623This is a major discovery, made through the WISPR visual light panchromatic camera on the Parker Solar Probe (PSP):
A permanent ring near the orbit of Phaeton, crossing it 10° before perihelion and at 1° offset at periapsis. What keeps it there against the solar wind, or renews it in place, is not yet known. I doubt that it's particles left there from some singular event. Looks more like a permanent process.
The same type of ring was seen in the Venus orbit.
Karl Battams 2022: Continued PSP/WISPR Observations of a Phaethon-related Dust Trail
[url]https://arxiv.org/abs/2207.12239[/url]
video: [url]https://wispr.nrl.navy.mil/encounter13-summary[/url]
Stenborg 2021: Pristine PSP/WISPR Observations of the Circumsolar Dust Ring near Venus's Orbit
[url]https://iopscience.iop.org/article/10.3847/1538-4357/abe623[/url]