Slava G. Turyshev
Direct Multipixel Imaging and Spectroscopy of Exoplanets with a Mission to the Focal Region of the Solar Gravitational Lens
Notes by Paul Fischer
Our Challenge: all exoplanets are far, therefore amplification
They are also too small, therefore increased resolution is needed
Direct imaging: only super Jupiters, not suitable to discover an exoearth
The telescope would need to be 90km in diameter, which is not feasible
The solar gravitational lens is therefore is being proposed
SGL provides high-resolution imaging, and this is apparent
Realistic model of the sun
Previous work (1911-2021)
The sun was modeled as a spherically-symmetric point-mass body
The harmonics function effectively with the gravitational field
Astroid caustic and imaging point sources.. allowing image deconstruction
Addressing temporal variability
Over the diurnal rotation of the image reconstruction, interesting and exciting and can be fully captured in the analysis
Image of the exoplanets-orbital inclination and the required velocity Ono the spacecraft to capture an image
Look at well at the acceleration, 5 microns per second, velocity of 20 meters per second
Essentially the space information is available on the space craft to provide high quality imaging
Scientific req doc can guide the mission documents, and helps lend real mission information there
Image deconstruction and spectroscopy
…
Solar sailing allows the approach of 20-30 astronomical units per year
To explore this possibility the mission will arrive in 2022, voyager one
Flights in 2023 and 2024
Trajectory designed will begin with high earth orbit and tacking against the solar wind like a sailboat, at this point system checks must be performed before moving to autonomous operations
Through the perihelion maximum thermal load will be reached before egress allow return to power and comm
The next year will bring steerable solar sails and the mission will be shown to be realistic and affordable
Q: the studies are essential, what about a planet mixing with the stars in the deep space light across another planet?
A: The narrow field of view of the SGL will allow discovery of many of these planets
Q: How will we know where to look?
A: this will provide a sort of Einstein beacon as the planet emerges from the corona behind the star, the spacecraft will be positioned precisely on the exoplanet
Q: what are the reasons for the original vein-based solar sail design?
A: the design was proposed by an explorer incorporated as an industrial corporate partner. The benefits are obvious, the steering and graceful tacking are not possible with other designs of solar sails, a full analogy to the sail boat is possible
This design essentially uses solar craft anywhere on the solar system this design can also be used to go back and forth between earth, and explore the deep solar systems, and look to interstellar objects
Q: will the solar craft require a jib?
A: all sizable across the different planes of veins and allow steering in the direction that you want to go
Q: what is the next big thing for this study?
A: sagan: “every extraordinary claim requires extraordinary evidence” we will move full speed to make a reality of this mission, and we will move from public-private partnership into embracing multiple organizations to develop flights in the near future, we will be able to bring pictures back of a planet and demonstrate that it is inhabited, all thanks to NIAC
Q: Have there been any surprises?
A: there has been a very good present from the slow gravitational lens itself, enabling a revelation that the lens gave us, and can follow the ever moving target, seeing the life on an alien planet within our neighborhood.
No comments:
Post a Comment