Free Astronomy Magazine January-February 2024 ARABIC VERSION

I Circumstellar disk discovered for the first time in another galaxy by ESO Bárbara Ferreira n a remarkable discovery, as- tronomers have found a disc around a young star in the Large Magellanic Cloud, a galaxy neigh- bouring ours. It’s the first time such a disc, identical to those forming planets in our own Milky Way, has ever been found outside our galaxy. The new observations reveal a mas- sive young star, growing and accret- ing matter from its surroundings and forming a rotating disc. The de- tection was made using the Ata- cama Large Millimeter/submillim- eter Array (ALMA) in Chile, in which the European Southern Observatory (ESO) is a partner. JANUARY-FEBRUARY 2024 44 ﻣﺠﻠﺔ FreeAstronomy ﺎﻟﻌﺮ ﺔ إ " ﻛﺘﺸﺎف ﻗﺮصﻧ ﻤﻲ " ﻓﻲﻣﺠﺮة أﺧﺮى ﻷول ﻣﺮة : ﻘﻠﻢ ﺎر ﺮا ﻓ ﺮا اﻟﻤﺮﺻﺪ اﻷوروﺑﻲ اﻟـﺠﻨﻮﺑﻲ اﻛﺘﺸـﻒ ﻋﻠﻤﺎء اﻟﻔﻠـﻚ ﻗـﺮصﺣـﻮل ﻧﺠـﻢ ﺷﺎب ﰲ ﺳﺤﺎﺑﺔ ﻣﺎﺟﻼن اﻟﻜﱪى، وﻫﻲ ﻣﺠﺮة ﻣﺠﺎورة ﺠﺮﺗﻨﺎ ﰲ اﻛﺘﺸﺎف راﺋﻊ . إﻧﻬﺎ ا ﺮة اﻷوﱃ اﻟﺘﻲ ﻳﺘﻢ ﻓﻴﻬـﺎ اﻟﻌﺜـﻮ ر ﻋـﲆ ﻗـﺮصﻛﻬـﺬا ﻣﻄـﺎﺑﻖ ﻟﺘﻠـﻚ اﻟﺘـﻲ ﺗﺸـﻜﻞ اﻟﻜﻮاﻛ ـﺐ ﰲ ﻣﺠ ﺮﺗﻨ ـﺎ درب اﻟﺘﺒﺎﻧ ـﺔ ﺧ ـﺎرج . ﻣﺠﺮﺗﻨﺎ ﺗﻜﺸﻒ اﻷرﺻﺎد اﻟﺠﺪﻳﺪة ﻋﻦ ﻧﺠﻢ ﻓﺘﻲ ﺿﺨﻢ ﻳﻨﻤﻮ و ﻜﺘﺴﺐ ﻳ ا ﺎدة ﻣﻦ ﻣﺤﻴﻄـﻪ وﻳﺸـﻜﻞ ﻗﺮﺻﺎ دوارا . ﺗﻢ ﻫـﺬا اﻻﻛﺘﺸـﺎف ﺑﺎﺳـﺘﺨﺪام ﻣﺼـﻔﻮﻓﺔ أﺗﺎﻛﺎﻣﺎ ا ﻠﻴﻤﱰﻳـﺔ / دون ا ﻠﻴﻤﱰﻳـﺔ اﻟﻜﺒـ ة ( أ ﺎ) ﻟﺘﻲوا ﰲ ﺗﺸﻴﲇ ﻳﻌﺘﱪ ا ﺮﺻﺪ اﻷوروﺑﻲ اﻟﺠﻨﻮﺑﻲ . ﴍﻳﻚ ﻓﻴﻪ - ﻳﻨﺎﻳﺮ ﻓﺒﺮﺍﻳﺮ 2 0 2 4