SETI researchers are fascinated by radio signals that appear to come from the direction of a sun-like star in the constellation Hercules. It is about the star HD 164 595.
The signal corresponds to the profile of a message originating from an alien source, but it may just as well be a radio interference or a case of micro-lensing.
Either the signal has aroused the interest of the people who specialize in the search for extraterrestrial intelligence, or SETI, including Paul Gilster that the signal last weekend brought the attention.
Number of Reasons
At least two research teams are going to investigate the HD 164 595 closely. The SETI Institute will use the Allen Telescope Array in California while METI International will use de Boquete Optical SETI Observatory in Panama.
The signal is more than a year ago, on May 15, 2015, picked up by a Russian radio telescope in Zelentsjoekskaja.
The source of the signal, HD 164 595, is interesting for several reasons: it is a sun-like star 95 light years from Earth and at least one “hot Neptune” is circling around the star. “There may, of course, more planets in this system,” Gilster said.
The signal is compared to the mysterious Wow! Signal which was collected only once in 1977 and KIC 8462582, which is also called the most mysterious star in the universe. After May 2015, the signal is no longer be detected. Next month astronomers will discuss it at a meeting in Mexico.
“This object needs to be constantly monitored,” say the researchers who discovered the signal. They are led by Nikolai Boersov of the Russian Academy of Sciences.