Questions tagged [radio-telescope]
Questions related to the instruments used to perform observations in the radio frequency range.
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Why do we call radio images "maps"? Is it because it is not optical, so therefore not an "image", strictly speaking?
Or is it just historical convention? I know that within research circles, it is common to also use the term "radio image". I am mainly wondering whether the term originally comes from ...
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What on-site equipment is installed with radio telescopes?
I hope this question isn't too broad.
I'd like to know something about radio telescopes, precisely what equipment they have.
When I search "radio telescope control room" in image search ...
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Could we hear alien radio transmissions using radio interferometry?
Suppose money and engineering wasn't a concern. Could we actually build a bunch of radio telescopes in space, and use radio interferometry, so that we could actually hear the sort of radio ...
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Calculate change in spectral line intensity for a change in temperature
I am trying to do some simple modelling of spectral line emission. I am starting with some ALMA observations of a protoplanetary disk, where the emission from a particular molecule at frequency 344GHz ...
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Would it be possible to use existing radio-telescopes to do spot measurements of CMB?
With CMB peaking at roughly 158GHz would it be possible to create a more precise map of CMB just by sampling 'points' using existing Earth-based radio telescopes? I understand that large dish ...
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is there any site with historical radiotelescope data about observations 21 cm line Hydrogen (1.42 GHz)?
I am looking for an open source that contain historical raw data or (meta)data about historical observations of the 21 cm line hydrogen made via radio telescopes.
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Why are radio telescopes often built into natural depressions?
Radio telescopes are often built into sink holes or natural depressions in the landscape.* This is opposed to optical telescopes which are usually placed on mountains to avoid as much atmosphere as ...
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How do we get -0.4 mJy/beam in the the 1.28 GHz MeerKAT Galactic Center Mosaic?
Dr. Becky's Feb. 11, 2022 video Move over JWST! 5 new telescopes to get excited for makes a quick mention of this image produced by the Meerkat array and published in Heywood et al. 2022 The 1.28 GHz ...
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Do high power radar astronomers try to avoid beaming power at (at least some) artificial satellites as they pass overhead?
This answer to "Next Generation Arecibo Telescope (NGAT)... would combine a 314-metre-wide platform with a swarm of 9-metre dishes on top" What would that look like? links to an interesting ...
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"Next Generation Arecibo Telescope (NGAT)... would combine a 314-metre-wide platform with a swarm of 9-metre dishes on top" What would that look like?
In Nature News' August 11, 2023 Closing down an icon: will Arecibo Observatory ever do science again? found in The Observatory there is discussion of the Next Generation Arecibo Telescope (NGAT):
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Greetings to Altair: what is the probability of detecting a return message, assuming one was sent?
Greetings to Altair was a 1983 transmission to Altair, 16.7 light years distant, sent on the 46m Stanford radio telescope, known as "The Dish". [Quast 2018]
Assuming an alien civilisation ...
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Measuring Expansion Rate of Crab Nebula with Radio Spectrum Scan
I am a high school student who is into radio astronomy, and I have the opportunity to use Green Bank’s 20m radio telescope for a practice research project. I would like to use my observations to very ...
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Questions about the Cocconi Morrison paper on interstellar communication
I have been reading the paper by Cocconi and Morrison on interstellar communication and I have trouble understanding their formulas.
The paper begins by stating, that a star similar to the quiet sun ...
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How will China's Xuntian space telescope use its Terahertz capability? THz Spectroscopy? Imaging? Something else?
An Update on the Chinese Space Station Telescope Project Hu Zhan, National Astronomical Observatories, CAS, KIAA, Peking University, On behalf of the CSST Team, ISSI-BJ Workshop: Weak gravitational ...
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Are there any new/latest/recent radio sky surveys' data release which is publicly accessible?
There are many sky surveys that have been conducted by telescopes in different wavelengths of the electromagnetic spectrum like DSS (Digitized Sky Survey), SDSS (Sloan Digital Sky Survey), WISE (wide-...
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