New paper on observing "Clarke Exo-belts"

Message boards : News : New paper on observing "Clarke Exo-belts"
Message board moderation

To post messages, you must log in.

AuthorMessage
Eric Korpela Project Donor
Volunteer moderator
Project administrator
Project developer
Project scientist
Avatar

Send message
Joined: 3 Apr 99
Posts: 1368
Credit: 53,223,722
RAC: 30,113
United States
Message 2021712 - Posted: 4 Dec 2019, 19:44:43 UTC
Last modified: 4 Dec 2019, 19:49:48 UTC

Dr. Korpela and his colleagues Prof. Shauna Sallmen and Ms. Kaisa Crawford-Taylor have published a new paper today in the Astronomical Journal about whether astronomers be able to detect belts of satellites circling planets around other stars. Unfortunately, the answer is that even the thickest satellite belts will be very difficult to see with current technology. Even the James Webb Space Telescope will find it difficult.

If, like most sentient beings in the Galaxy, you don't have a subscription to the Astronomical Journal you can see a preprint of the article at arXiv.org.
ID: 2021712 · Report as offensive     Reply Quote
PerseidsGirl Project Donor
Avatar

Send message
Joined: 14 Jan 03
Posts: 2
Credit: 911,270
RAC: 137
United States
Message 2021832 - Posted: 5 Dec 2019, 17:11:03 UTC - in response to Message 2021712.  

Thank you for the link to the journal article. Very interesting -- I bet all the parameters do make detection extremely difficult!

Just one Q: why is it important to find and study belts around exoplanets of M-class stars?
ID: 2021832 · Report as offensive     Reply Quote
raybgood19

Send message
Joined: 3 Jul 99
Posts: 1
Credit: 4,291,058
RAC: 3,304
United States
Message 2021857 - Posted: 5 Dec 2019, 21:41:46 UTC - in response to Message 2021712.  

I have to ask, did someone mean "Clarke" Exo-belts, for Arthur C. Clarke?
ID: 2021857 · Report as offensive     Reply Quote
Profile Mr. Kevvy Crowdfunding Project Donor*Special Project $250 donor
Volunteer moderator
Volunteer tester
Avatar

Send message
Joined: 15 May 99
Posts: 3042
Credit: 1,034,401,931
RAC: 2,040,685
Canada
Message 2021916 - Posted: 6 Dec 2019, 6:41:21 UTC - in response to Message 2021857.  
Last modified: 6 Dec 2019, 6:43:13 UTC

I have to ask, did someone mean "Clarke" Exo-belts, for Arthur C. Clarke?


Correct... looks like a typo. And yes, it is named after him as he basically invented the concept of the geostationary comsat (as well as writing much of my favorite sci-fi.)
I've passed it on (don't want to be editing thread titles in a newsfeed) so hopeful it will be corrected.
“Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has.”
---Margaret Mead
ID: 2021916 · Report as offensive     Reply Quote
Eric Korpela Project Donor
Volunteer moderator
Project administrator
Project developer
Project scientist
Avatar

Send message
Joined: 3 Apr 99
Posts: 1368
Credit: 53,223,722
RAC: 30,113
United States
Message 2021979 - Posted: 7 Dec 2019, 0:09:45 UTC - in response to Message 2021832.  

Just one Q: why is it important to find and study belts around exoplanets of M-class stars?

M-class stars are the most common type (around 75% of stars) and because they are the most common, most nearby stars are going to be M-class and most planets will be found around M-stars. The TESS mission, looking for nearby planetary systems, will mostly find planets around M-stars. That's why we spend a lot of time talking about M-stars. There aren't many stars like the sun (G-class) that are close enough for us to observe these effects (even though G-stars are much brighter than M-stars). It was also the focus of Hector Socas-Navarro's earlier paper on Clarke belts, and we wanted to respond to some of the misconceptions people had about that paper.

Of course we don't know if life is common around M-stars (yet).
@SETIEric

ID: 2021979 · Report as offensive     Reply Quote
Erik Hobbs

Send message
Joined: 21 Jun 19
Posts: 2
Credit: 4,224
RAC: 9
Message 2022716 - Posted: 11 Dec 2019, 4:21:25 UTC - in response to Message 2021712.  

Dr. Korpela and his colleagues Prof. Shauna Sallmen and Ms. Kaisa Crawford-Taylor have published a new paper today in the Astronomical Journal about whether astronomers be able to detect belts of satellites circling planets around other stars. Unfortunately, the answer is that even the thickest satellite belts will be very difficult to see with current technology. Even the James Webb Space Telescope will find it difficult.

If, like most sentient beings in the Galaxy, you don't have a subscription to the Astronomical Journal you can see a preprint of the article at arXiv.org.
ID: 2022716 · Report as offensive     Reply Quote
Erik Hobbs

Send message
Joined: 21 Jun 19
Posts: 2
Credit: 4,224
RAC: 9
Message 2022718 - Posted: 11 Dec 2019, 4:32:17 UTC - in response to Message 2022716.  

Regarding Clarke Exo-Belts, I believe a truly advanced civilization would have harnessed their planets natural magnetic and electrical fields. In doing this, they have eliminated the need for external satelites. If the argument is for photographic purposes, harnessing and tuning to a planets energy would give the civilization the ability to generate a perfect map through to the core in layers one atom thick.

Search for planets that would show characteristics of harnessing that energy. It would be easier than searching for belts 1,000,000,000th the size of the planet you are looking at.

Additionally, a planet, such as earth, creates enough energy through, lightening, hurricanes, eruptions, ocean currents, solar, wind, hydrogen, etc., it would be irrational to think they would utilize a Dyson Swarm or Sphere to power their planet.
ID: 2022718 · Report as offensive     Reply Quote
M. L. anderson

Send message
Joined: 28 Mar 08
Posts: 4
Credit: 20,329
RAC: 35
United States
Message 2022900 - Posted: 12 Dec 2019, 21:44:26 UTC - in response to Message 2021979.  

Place a strong magnetic field around the tube of your telescope, one that is produced from electric wires wrapping. and watch the increase in image size.

Just a suggestion.
ID: 2022900 · Report as offensive     Reply Quote
gphki

Send message
Joined: 6 Apr 18
Posts: 1
Credit: 96,624
RAC: 126
Germany
Message 2026107 - Posted: 3 Jan 2020, 9:48:59 UTC - in response to Message 2021832.  

Belts of satellites say: there is somebody outside
ID: 2026107 · Report as offensive     Reply Quote

Message boards : News : New paper on observing "Clarke Exo-belts"


 
©2020 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.