Science often asks more questions that one can answer and often the answers moderate to even more interrogative sentence . In that nervure , last week one of the enigma of our wandflower has just get a little bit more mysterious .
Two papers , published inPhysics Review Letters , looked at the emission of powerful gamma rays from the center of the Milky Way . It was wait that a enceinte fraction of these powerful photons is produced by sullen subject , but both field indicated the emissions are from a different astrophysical source whole – tight - rotate asterisk called pulsars .
The centre of the Milky Way is a complex place . It ’s a dense realm with principal clusters , throttle cloud , and a supermassive black hole call Sagittarius A * . As dark matter is think to only interact gravitationally , stargazer have postulated that it should be found in abundance in dumb regions such as the galactic center .
Dark Matter is think to make up 85 percent of all the matter in the creation , so the research worker looked at heavy regions hoping to honor a phenomenon call by several theories : saturnine matter annihilation . If two particles of glum affair interact with each other they would decimate and convert into pure energy , the gamma ray photons which stargazer detected . If dark matter annihilation was widespread as call the emissions should be quiet across the meat of our galaxy . Instead the team ' statistical depth psychology of paradigm seize by the Fermi telescope bring out blotchy emissions .
" Our analytic thinking suggests that what we are see is evidence for a fresh astrophysical beginning of Vasco da Gamma beam at the core of the galax , " say Mariangela Lisanti , an adjunct professor of physics at Princeton and coauthor of one of the newspaper publisher , in astatement .
" This is a very complicated part of the sky and there are other astrophysical signals that could be confused with dark matter signals . "
Since the researchers did n’t observe the even gamma ray signals they expected of drear topic annihilation , they remember the Vasco da Gamma ray must be produced bydifferent source of high - push radioactivity , most potential the fast - rotating stars known as pulsars . These stars pack the mass of the Sun in just a few kilometers in diam and they spin on their axis century of fourth dimension per second base . This phenomenon , compound with strong magnetic field , create a lighthouse effect , meaning these stars appear to pulsate .
