لأول مرة.. اكتشاف نجم نيوتروني خارج درب التبانة

أعلنت وكالة ناسا الأمريكية للملاحة الجوية والفضاء عن اكتشاف علماء الفلك أول نجم نيوتروني خارج مجرة درب التبانة.

وتم تأكيد هذا الاكتشاف من خلال تحليل الصور التي التقطها مرصد تشاندرا الفضائي للأشعة السينية، الذي أطلقته ناسا عام 1999، والمرصد الأوروبي الجنوبي في تشيلي.

SPOTTED: Astronomers discovered a special kind of neutron star for the first time outside of the Milky Way galaxy! ⭐️ Neutron stars like this one spotted by our @nasachandraxray telescope are formed when a massive star runs out of fuel and collapses. The very central region of the star – the core – collapses, crushing together every proton and electron into a neutron. If the core of the collapsing star is between about 1 and 3 solar masses, these newly-created neutrons can stop the collapse, leaving behind a neutron star.Since neutron stars began their existence as stars, they are found scattered throughout the galaxy in the same places where we find stars. And like stars, they can be found by themselves or in binary systems with a companion. Our data suggests that this neutron star is a rare variety that has both a low magnetic field and no stellar companion. Future observations at X-ray, optical, and radio wavelengths will help astronomers learn more about how this neutron star ended up in its current position outside our galaxy. Credit: NASA/European Southern Observatory #nasa #space #milkyway #supernova #star #outerspace #telescope #pictureoftheday #astronomy #science #universe #solarsystem #galaxy

A post shared by NASA (@nasa) on May 30, 2018 at 2:00pm PDT