Cruise | Interplanetary dust

Since the trajectory to Alpha Centauri would take the nanocrafts away from the ecliptic plane of the solar system, there would be much less impact from solar system dust than from interstellar dust.

Little is currently known about the dust content in the Alpha Centauri star system.

Apr 13, 2016 07:53 xix3r0ix@gmail.com Posted on: Breakthrough Initiatives

Maybe it would be possible to augment the laser array to interact with the stellar dust, and fire bursts prior to launch? If there would be some way to measure how the beam interacts with stellar dust in our system, that data could be used to either clear a path, or find out other possibilities.
Alternatively, maybe a first wave could be sent prior to launch with sails that are designed to clear a path to minimize impact with the more sensitive Starchips. Just a few thoughts, such an incredible endeavor.

Apr 23, 2016 23:04 michael.million@sky.com Posted on: Breakthrough Initiatives

With two suns in the AC I would think dust would not be very common, that's a lot of light to move them about.

Jul 25, 2016 03:19 Breakthrough Initiatives Posted on: Breakthrough Initiatives

Apr 23, 2016 23:04 michael.million@sky.com Posted on: Breakthrough Initiatives:
"With two suns in the AC I would think dust would not be very common, that's a lot of light to move them about."

The luminosity of alphaC A and B are similar to the Sun, so not clear that the situation is much better than the Solar System.

– Prof. Sasha Buchman, Breakthrough Initiatives

Jul 25, 2016 03:20 Breakthrough Initiatives Posted on: Breakthrough Initiatives

Apr 13, 2016 07:53 xix3r0ix@gmail.com Posted on: Breakthrough Initiatives:

"Maybe it would be possible to augment the laser array to interact with the stellar dust, and fire bursts prior to launch? If there would be some way to measure how the beam interacts with stellar dust in our system, that data could be used to either clear a path, or find out other possibilities.
Alternatively, maybe a first wave could be sent prior to launch with sails that are designed to clear a path to minimize impact with the more sensitive Starchips. Just a few thoughts, such an incredible endeavor."


Maybe it would be possible to augment the laser array to interact with the stellar dust, and fire bursts prior to launch? If there would be some way to measure how the beam interacts with stellar dust in our system, that data could be used to either clear a path, or find out other possibilities.
Alternatively, maybe a first wave could be sent prior to launch with sails that are designed to clear a path to minimize impact with the more sensitive Starchips. Just a few thoughts, such an incredible endeavor.

– Sasha Buchman, Breakthrough Initiatives

Aug 26, 2016 11:39 william@theroses.me.uk Posted on: Breakthrough Initiatives

The laser interacting with the dust would not matter because it would be too weak by that point to do anything. I do not know this but I think so.

Dec 06, 2016 18:31 Breakthrough Initiatives Posted on: Breakthrough Initiatives

RE:
"Aug 26, 2016 11:39 william@theroses.me.uk Posted on: Breakthrough Initiatives

The laser interacting with the dust would not matter because it would be too weak by that point to do anything. I do not know this but I think so."

Answer:
You are correct the earth based laser maybe powerful enough to clear the path to Mars orbit. But much past that it will not have enough power to move the particles out of the way. Thank you for your ideas.

- Avi Loeb, Breakthrough Starshot

Dec 13, 2017 18:10 miles1w@outlook.com Posted on: Breakthrough Initiatives

I am no expert in this area but commend you on your fantastic initiative. I am curious about your calculations regarding the number of interactions with 0.1 micron particles, the number received and the damage to the structure, analogous in mind to a spark eroder.
What I find fascinating is that during your challenge, you will in effect be flying through the 4th dimension for the first time, at 0.2C, where some relativistic effects may be noted.
I would love to learn more about the Oort cloud, its composition, leftover particles and dust from objects able to leave ours and Alpha Centuri's orbits along with our solar system's orbit around the milky way, every 245m years, and projected interactions with nearby neighbors, both gravitationally as well as any electromagnetic activity of note sending ions, radiation and matter across projected trajectories.
I would be really disappointed if a catastrophic event during time with interstellar dust occurred through not being able to detect an object of some mass greater than 10microns and being able to manage that interaction without trauma whilst being able to sustain a tolerance greater than the expected number of 0.1micron particles

Feb 26, 2018 21:30 Breakthrough Initiatives Posted on: Breakthrough Initiatives

Reply:
Thank you for your contribution. Relevant material is discussed in the above thread.

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