{"id":11877,"date":"2023-01-16T17:37:56","date_gmt":"2023-01-16T17:37:56","guid":{"rendered":"https:\/\/www.africa-press.net\/cape-verde\/all-news\/new-microwave-map-of-earths-galaxy-sheds-light-on-polarization-of-milky-way-emission-study-claims"},"modified":"2023-01-16T18:13:36","modified_gmt":"2023-01-16T18:13:36","slug":"new-microwave-map-of-earths-galaxy-sheds-light-on-polarization-of-milky-way-emission-study-claims","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/cape-verde\/all-news\/new-microwave-map-of-earths-galaxy-sheds-light-on-polarization-of-milky-way-emission-study-claims","title":{"rendered":"New Microwave Map of Earth’s Galaxy Sheds Light on Polarization of Milky Way Emission, Study Claims"},"content":{"rendered":"

Africa-Press – Cape verde. <\/strong><\/span>Excess microwave emission was detected coming out of the center of our Galaxy \u2013 the Milky Way \u2013 around 25 years ago, although its source was unexplained. The QUIJOTE (Q-U-I JOint TEnerife) Collaboration, launched back in 2012, has now offered some possible explanations. A map of the magnetic field of Earth\u2019s galaxy, the Milky Way, has been charted by an international team of scientists.<\/p>\n

The research, led by Spain\u2019s Instituto de Astrofi\u0301sica de Canarias (IAC), has presented a highly accurate description of the polarization of the Milky Way emissions, using telescopes that observe the sky in the microwave part of the electromagnetic spectrum. In findings published in Monthly Notices of the Royal Astronomical Society, the team gave a point-by-point account of their research which started a decade ago in 2012.<\/p>\n

The scientists used the QUIJOTE (Q-U-I JOint TEnerife) Collaboration, located at the Teide Observatory on Tenerife, the Canary Islands, which comprises two 2.5m diameter telescopes.<\/p>\n

Now, a series of six scientific articles have been presented by the collaboration, in the wake of its decade’s work to obtain data with its multifrequency instrument MFI, ;which was operational until 2018.<\/p>\n

As the QUIJOTE collaboration mapped the magnetic structure of the Milky Way, its research fed into earlier studies dedicated to cosmic microwave background (CMB) radiation. The latter is a so-called \u201cfossil\u201d radiation lingering after the Big Bang, which, according to most scientists, created our universe about 13.7 billion years ago.<\/p>\n

“These maps give a detailed description in a new frequency range, from 10 to 20 GHz, complementary to those from space missions that have previously observed the sky at microwaves, such as Planck (ESA) and WMAP (NASA),\u201d Jose\u0301 Alberto Rubin\u0303o, the lead scientist on QUIJOTE, said, adding:<\/b><\/p>\n

Polarized Synchrotron Radiation The new maps presented by the QUIJOTE collaboration have shed light on the recently detected excess of microwave emission at the heart of our Galaxy. Believed to be connected to the decay process of dark matter particles, the excess of radiation, according to findings by the QUIJOTE team, could be polarized.<\/p>\n

Furthermore, the polarized synchrotron emission from the Milky Way is “much more variable than had been thought,\u201d added Elena de la Hoz, a researcher at the Instituto de Fi\u0301sica de Cantabria (IFCA).<\/p>\n

According to Rubin\u0303o, <\/b>these new findings will help scientists to understand the “energetic processes that took place at the birth of the universe\u201d.<\/p>\n\r\n