Radio observation in hydrogen line (1420MHz)
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Adding bricks to point the Ptarmigan Array beyond the Zenith 21/12/2023
Today I decided to find out what happens when I take the array to point other side of Zenith (ie > 90 degrees). Will it just give same data as…
Latest hydrogen radio map (1420MHz) Milky Way from LRO 20/12/23
Maps from latest data set 20/12/2023 (plots from ezCon ezGal and ezSky) – galaxy maps and uncorrected rotation curves for Milky Way:
First light on additive interferometer
Experiencing difficulties with my multiplying interferometer (which means it doesn’t work yet!), I am trying a simpler additive interferometer using 2 x Nooelec 1.4GHz dishes, SAWBird+ H1M LNAs at dishes,…
Determining the galactic rotation curve of the Milky successfully with my 1420MHz array
Galactic rotation curve from my data: Below shows exercise of picking points for curve above in my data: Compare my rotation curve above with typical Keplarian rotation curve (not from…
Interferometer test rig
My proposed test rig for interferometer, although I intend to change the splitter to power splitter. Andy
The 2 aerials of LIMA (Lichfield Interferometer Mini Array) 30/11/23
I still don’t think my interferometer is going to work! But here the 2 x Nooelec 1420MHz mesh antennae that will be used. Andy
Getting closer to the horizon on 1420MHz array…..
I have added some extension arms to the elevation mechanism on my homemade wooden mount for my 1420MHz hydrogen array to get closer to horizon as in this photo and…
The hydrogen map develops!
The arms of the Milky Way are beginning to emerge in my 1420Mhz radio telescope using ezRA software and 86 x 86cm ex-military array. I would particularly direct readers to…