Source of the post Watsisname, it's on a collision course with the Earth but don't worry the shadow government sent a special team with a hyperdrive generator and it will take a path through hyperspace when it intersects the Earth.
Source of the post it's on a collision course with the Earth but don't worry the shadow government sent a special team with a hyperdrive generator and it will take a path through hyperspace when it intersects the Earth.
Just like Prometheus can travel directly through Mimas shown here:
ALMA has detected a cold debris disk around Proxima Centauri with a mass comparable to that of the Kuiper Belt in our own solar system.
The disk is 1-4 AU from the star, which given the low luminosity of Proxima Centuri, means that it's roughly the same temperature as our Kuiper Belt, and may represent a sort of "Kuiper Belt analogue." The data hints at a possible outer debris belt at ~30 AU as well as warm dust at around 0.4 AU. But these will need more data to confirm.
Interestingly, a marginally detected compact source at ~1.6 AU, assuming it's not noise or a background object, may indicate the presence of a second planet orbiting Proxima Centauri. For a single body to be producing the signal in the ALMA data, it would have to be a ~1000 K brown dwarf, which can be confidently ruled out. Alternatively, this may represent a cloud of dust trapped in the Lagrange point of an as-yet undetected planet. Another possibility is that ALMA is seeing a ring of dust around a giant planet at 1.6 AU (with an orbital period of 5.8 years). The rings would have to have a mass of ~10^-5 Earth-masses, compared to 10^-7 Earth-masses for Saturn. Since the RV data likely rules out a ~100 Earth-mass planet at 1.6 AU, we would be talking about an extremely massive planetary ring around a rather low-mass planet (compared to Saturn at least). Further observations will be necessary to confirm that this emission source even exists, and if it does, that it orbits Proxima Centauri. "At any rate, our study shows that ALMA provides already the necessary sensitivity and resolution to detect rings around exoplanets in Alpha Centauri, and perhaps in other nearby stars."
ALMA Discovery of Dust Belts Around Proxima Centauri
A very important thing not mentioned is that we currently don't know the mass of Proxima b because the inclination of its orbital plane is unknown and thus we only have an estimate of the minimum mass of the planet. But assuming that those belts are coplanar with Proxima b orbit (as the Kuiper and main belts are with the ecliptic) then studying them would allow to meassure the precise mass of the planet! and this would result in knowing the kind of planet we have found (rocky, gas giant, etc...). So this discovery of the belts allow for a better understanding on the habitability of Proxima b as a consequence.
Okay, now I've seen that the scientific paper mentions this. If the outer belt is real then it has an aproximate inclination of i=45º. We also know that the minimum mass estimate for Proxima b is 1.27 earth masses.
Therefore Proxima b has around 1.8 earth masses in reality. By definition this could make it a very small super-earth or an earth-like planet.
They say that the still-to-be-confirmed, outermost belt is tilted by 45 deg, but not the others. As such, and even if the sketch and the animation assume coplanarity of the three belts, it seems not to be observationally established.
Any assumptions about the true mass at this point rely on that assumption. There's no way to know for sure at this point. The confidently detected disk's inclination is unknown, just inferred by coplanarity from the uncertainly-detected outer disk. Which makes the inclination of Proxima Centauri b a lot less certain.
However, if the innermost belt (~10 times farther than Prox b) was confirmed and if the position of its inner and outer boundary were well enough constrained, we could certainly have some constraints on the planet's mass. The constraints would certainly be far weaker if we have to rely on the confidently detected, intermediate belt. Or, more exactly, we could have constraints on the (mass, inclination) parameter. If you are talking about modelling the inner disk edge from the spectral energy distribution, you have to assume the b planet is alone to assume it's mass is responsible for shaping the inner disk wall. If the latter, you can probably infer the inclination, and the HARPS/Red Dots campaign does suggest a second planet is in the system at < 100ish days.