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TOPIC: Seti WOW signal


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Title: Hydrogen Line Observations of Cometary Spectra at 1420 Mhz
Author: Antonio Paris

In 2016, the Center for Planetary Science proposed a hypothesis arguing a comet and/or its hydrogen cloud were a strong candidate for the source of the Wow! Signal. From 27 November 2016 to 24 February 2017, the Center for Planetary Science conducted 200 observations in the radio spectrum to validate the hypothesis. The investigation discovered that comet 266/P Christensen emitted a radio signal at 1420.25 MHz. The results of this investigation, therefore, conclude that cometary spectra are detectable at 1420 MHz and, more importantly, that the 1977 Wow! Signal was a natural phenomenon from a Solar System body.

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The Wow! Signal
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In 2016, the Center for Planetary Science proposed a hypothesis arguing a comet and/or its hydrogen cloud were a strong candidate for the source of the "Wow!" Signal. From 27 November 2016 to 24 February 2017, the Center for Planetary Science conducted 200 observations in the radio spectrum to validate the hypothesis. The investigation discovered that comet 266/P Christensen emitted a radio signal at 1420.25 MHz. All radio emissions detected were within 1° (60 arcminutes) of the known celestial coordinates of the comet as it transited the neighbourhood of the "Wow!" Signal. During observations of the comet, a series of experiments determined that known celestial sources at 1420 MHz (i.e., pulsars and/or active galactic nuclei) were not within 15° of comet 266/P Christensen. To dismiss the source of the signal as emission from comet 266/P Christensen, the position of the 10-meter radio telescope was moved 1° (60 arcminutes) away from comet 266/P Christensen. During this experiment, the 1420.25 MHz signal disappeared. When the radio telescope was repositioned back to comet 266/P Christensen, a radio signal at 1420.25 MHz reappeared. Furthermore, to determine if comets other than comet 266/P Christensen emit a radio signal at 1420 MHz, we observed three comets that were selected randomly from the JPL Small Bodies database: P/2013 EW90 (Tenagra), P/2016 J1-A (PANSTARRS), and 237P/LINEAR. During observations of these comets, we detected a radio signal at 1420 MHz. The results of this investigation, therefore, conclude that cometary spectra are detectable at 1420 MHz and, more importantly, that the 1977 "Wow!" Signal was a natural phenomenon from a Solar System body.
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Title: Hydrogen Clouds from Comets 266/P Christensen and P/2008 Y2 (Gibbs) are Candidates for the Source of the 1977 "WOW" Signal
Author: Antonio Paris

On 1977 August 15, the Ohio State University Radio Observatory detected a strong narrowband signal northwest of the globular star cluster M55 in the constellation Sagittarius (Sgr). The frequency of the signal, which closely matched the hydrogen line (1420.40575177 MHz), peaked at approximately 23:16:01 EDT. Since then, several investigations into the "Wow" signal have ruled out the source as terrestrial in origin or other objects such as satellites, planets and asteroids. From 1977 July 27 to 1977 August 15, comets 266P/Christensen and P/2008 Y2 (Gibbs) were transiting in the neighborhood of the Chi Sagittarii star group. Ephemerides for both comets during this orbital period placed them at the vicinity of the "Wow" signal. Surrounding every active comet, such as 266P/Christensen and P/2008 Y2 (Gibbs), is a large hydrogen cloud with a radius of several million kilometers around their nucleus.

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Documentary 2014- Alien Origins ; the Wow! Signal

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Stephen Hawking - The Wow! Signal

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Reply To 'WOW! Signal' Gets Beamed Into Space Today

Today at noon ET, National Geographic Channel's Chasing UFOs will follow up on its promise to finally reply to the WOW! signal. It's going to send digitised versions of messages sent in by viewers via Twitter (hastag #chasingUFOs) as well as videos from Stephen Colbert, Miss Universe (Leila Lopes of Angola), Adam Frank and others.
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Ed ~ Shhhh



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 Humans sending reply to possible alien message

If you have anything to say to aliens, now is the time, but its not sure whether it will reach them or not.
The Wow! signal, a mysterious radio transmission detected in 1977 that may or may not have come from extraterrestrials, is finally getting a response from humanity.
Anyone can contribute his or her two cents - or 140 characters, to be exact - to the cosmic reply via Twitter.
The National Geographic Channel, which is timing the Twitter event to coincide with the premiere of the channel's new series, "Chasing UFOs," said all tweets composed between 00:00 UT Friday (June 29) and 7:00 UT Saturday (June 30) tagged with the hashtag #ChasingUFOs will be rolled into a single message.

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Robert Gray, an astronomer believes that the 'Wow!' signal received three decades ago, which is believed by many to be proof of alien life, may have come from an interstellar 'lighthouse'.
The 'Wow! signal' was received at 11.16 pm on August 15, 1977 - the night before Elvis died - as a radio telescope in Ohio swept its gaze through the constellation of Sagittarius.
It lasted 72 seconds and earned its name because of the message of disbelief Jerry Ehman, a researcher with the Search for Extra-Terrestrial Intelligence (SETI) programme, scrawled next to the printout recording it.

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The Wow! signal was a strong narrowband radio signal detected by Dr. Jerry R. Ehman on August 15, 1977, while working on a SETI project at the Big Ear radio telescope of The Ohio State University.
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Null Hypothesis: WOW

Stephen Hawking - The Wow! Signal



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When something truly startling happens, people say: "OMG!" or the dreaded, "Awesome!" But when Jerry Ehman sat at his kitchen table on Aug. 18, 1977, and saw six numbers and letters on the computer printout in front of him - six symbols that have become one of the grandest riddles in modern science - he chose the simplest expression of all. He took a red pen, circled the letters and then wrote: Wow!
When Jerry Ehman wrote that three-letter word, "wow," he was a professor at Ohio State University volunteering with SETI, the Search for Extra Terrestrial Intelligence. Every few days, a messenger would bike over from "The Big Ear," Ohio State's giant radio telescope in Delaware, Ohio, and hand Jerry computer records of sounds coming in from deep space. If something surprising popped up, he was to notify the other SETI folks.

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