Cygnus A with JRT

[Job Geheniau]

Over several weeks, I ended up making 11 drift scans of the area around Cygnus A (not every drift scan succeeded and there was also some time when I couldn't engage in this project unfortunately). Cygnus A is a radio galaxy with high radio emission. This emission is caused by synchrotron radiation. Each driftscan lasted 4 hours on 1410 MHz so as not to be affected by HI emission. The driftscan of Cygnus A itself at coordinates 19H59 and 40D44 had the highest result. The other driftscans showed less and less power. From these, I tried to make a 2 dimensional representation of the area around Cygnus A at 1410 MHz. All this with JRT [Job's Radio Telescope - 1.9 meters]. Also visible a (Excel) chart with all driftscans plotted in 1 chart. The (high) light blue plot is the Cygnus A driftscan itself.
Next project with this method: Cassiopeia A

Job Geheniau
Netherlands

[jan Lustrup-LA3EQ]

That’s amazing Job…well done!

Jan

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[fasleitung3]

Hi Job,

Very nicely done and an excellent result for such a small dish.

Just a quick comment on what exactly you are seeing: As the resolution of your dish is limted, you are seeing the blended result of Cygnus A and the Cygnus complex including Cygnus X. So you are getting more energy than you would get from Cygnus A alone.

Good luck with CAS A.

Best regards,

Wolfgang

[mario...@gmail.com]

Hello all,

 

attached you will find a report on Cygnus A detection done in 3D with TotalPower, PstRotator, RTL-SDR e 5m dish.

 

I will appreciate comments and suggestions !

 

Mario A. Natali

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[Job Geheniau]

Yes Wolfgang thats indeed true and I should have said “cygnus complex”. I am aware of the fact that this is blended (8 degrees beam) but happy that this ‘amateur experiment’ succeeded.

Thanks for extra info

Job

Op 16 mei 2022 om 10:56 heeft mario...@gmail.com het volgende geschreven:



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<Cygnus_A.pdf>

[Job Geheniau]

Nice, I just tried to learn the app with sun. Tomorrow I will try Cyg complex with this app.

Op maandag 16 mei 2022 om 10:56:16 UTC+2 schreef Mario A. Natali, I0NAA:

[mario...@gmail.com]

Hi Job,

 

nice plot !

I will appreciate if you can share your results.

 

Please take in consideration that with Cygnus A , that is much weaker, the ground noise at low elevation impact clearly the measure.

 

Cheers, Mario

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[Job Geheniau]

Its not Cygnus A, my fault, its the Cygnus Complex (A & X) because I dont have that resolution here , 1.9 meter- extended 1.5

Op 16 mei 2022 om 19:37 heeft mario...@gmail.com het volgende geschreven:



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