{"id":4881,"date":"2016-08-30T06:31:50","date_gmt":"2016-08-30T11:31:50","guid":{"rendered":"http:\/\/huewhite.com\/umb\/?p=4881"},"modified":"2016-08-30T06:31:50","modified_gmt":"2016-08-30T11:31:50","slug":"hd-164595","status":"publish","type":"post","link":"https:\/\/huewhite.com\/umb\/2016\/08\/30\/hd-164595\/","title":{"rendered":"HD 164595"},"content":{"rendered":"

HD\u00a0164595 lies near the source of an interesting new signal. CNN<\/strong><\/em> is a\u00a0popular source of information<\/a>:<\/p>\n

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Astronomers engaged in the search for extraterrestrial intelligence (SETI) are training their instruments on a star around 94 light years from Earth after a very strong signal was detected by a Russian telescope.<\/p>\n

An international team of researchers is now examining the radio signal and its star, HD 164595<\/a> — described in a paper by Italian astronomer Claudio Maccone and others as a “strong candidate for SETI” — in the hopes of determining its origin.<\/p>\n

“The signal from HD 164595 is intriguing, because it comes from the vicinity of a sun-like star, and if it’s artificial, its strength is great enough that it was clearly made by a civilization with capabilities beyond those of humankind,” astronomer Douglas Vakoch, president of METI International<\/a>, which searches for life beyond Earth, tells CNN.<\/p>\n

Whenever a strong signal is detected, “it’s a good possibility for some nearby civilization to be detected,” Maccone tells CNN.<\/strong><\/p>\n<\/blockquote>\n

For a more technical approach<\/a> to the phenomenon there is Paul Gilster\u00a0Centauri Dreams<\/strong><\/em>:<\/p>\n

A candidate signal for SETI is a welcome sign that our efforts in that direction may one day pay off. An international team of researchers has announced the detection of \u201ca strong signal in the direction of HD164595\u201d in a document now being circulated through contact person Alexander Panov. The detection was made with the RATAN-600 radio telescope in Zelenchukskaya, in the Karachay\u2013Cherkess Republic of Russia, not far from the border with Georgia in the Caucasus.<\/p>\n

The signal was received on May 15, 2015, 18:01:15.65 (sidereal time), at a wavelength of 2.7 cm. The estimated amplitude of the signal is 750 mJy.<\/p>\n

No one is claiming that this is the work of an extraterrestrial civilization, but it is certainly worth further study. Working out the strength of the signal, the researchers say that if it came from an isotropic beacon, it would be of a power possible only for a Kardashev Type II civilization. If it were a narrow beam signal focused on our Solar System, it would be of a power available to a Kardashev Type I civilization. The possibility of noise of one form or another cannot be ruled out, and researchers in Paris led by Jean Schneider are considering the possible microlensing of a background source by HD164595. But the signal is provocative enough that the RATAN-600 researchers are calling for permanent monitoring of this target.<\/p><\/blockquote>\n

The mJy is a mega-Jansky<\/a>, a unit of spectral irradiance, “…\u00a0equivalent to 10\u221226<\/sup> watts<\/a> persquare metre<\/a> per hertz<\/a>.” A Kardashev Type<\/a> categorizes civilizations and their energy usages:<\/p>\n

The Kardashev scale<\/b> is a method of measuring a civilization<\/a>‘s level of technological<\/a> advancement, based on the amount of energy<\/a> a civilization is able to use for communication.[1]<\/a><\/sup> The scale has three designated categories:<\/p>\n