Free Astronomy Magazine March-April 2025 ARABIC VERSION

C  ircumstellar disks in young multiple starsystems,as discovered by ALMA. Where the orbits are known,theyare included with white lines. [NSF/AUI/NSF NRAO/B.Saxton] Surprising newmethods planets mayform byALMAObservatory Nicolás Lira BárbaraFerreira ucked away in a star-forming region in the Taurus constella- tion,apairofcirclingstars display some unexpected differ- ences in the circumstellar disks of dust and gas surrounding them. A newstudyledbyresearchersat ﻃﺮقﺟﺪ ﺪة وﻣﺪﻫﺸﺔ ﻟﺘﺸ ﻞ اﻟ ﻮاﻛﺐ : ﻘﻠﻢ ﻧﻴ ﻮﻻس ﻟ ا و ﺎر ﺮا ﻓ ﺮا ﻣﺮﺻﺪ أﻟﻤﺎ ﻈﻬﺮ زوج ﻣﻦ اﻟﻨﺠﻮم اﻟﺪاﺋﺮﻳﺔ ﻨﻄﻘﺔ ﰲ ﻣ ﺗﺸـﻜﻞ اﻟﻨﺠـﻮم ﰲ ﻛﻮﻛﺒ ـﺔ اﻟﺜ ـﻮر ﺑﻌ ـﺾ اﻻﺧﺘﻼﻓــﺎت ﻏــ ا ﺘﻮﻗﻌــﺔ ﰲ اﻷﻗــﺮاص ا ﺤﻴﻄﺔ ﺑﺎﻟﻨﺠﻮم ﻣﻦ اﻟﻐﺒـﺎر وا ﻟﻐـﺎز وﻗـﺪ ﻛﺸﻔﺖ دراﺳﺔ ﺟ ﺪﻳﺪة أﺟﺮاﻫـﺎ ﺑـﺎﺣﺜﻮن ﰲ ﻣﺮﺻﺪ ﻟﻮﻳﻞ ﻣﻦ ﺧﻼل اﻟﺠﻤﻊ ﺑ اﻟﺒﻴﺎﻧﺎت ﺃﺑﺮﻳﻞ - ﻣﺎﺭﺱ 2 0 2 5 اﻷﻗــــــﺮاص اﻟﻤﺤ ﻄـــــــﺔ ــــﺎﻟﻨﺠﻮم ﻓــــﻲ اﻷﻧﻈﻤــــﺔ ـــــــــــــــﺔ اﻟﻤﺘﻌــــــــــــــــﺪدة اﻟﻨ ﻤ اﻟﺸــــﺎ ﺔ ﻤــــﺎ اﻛﺘﺸــــﻔﻬﺎ ﻣﺮﺻﺪ أﻟ . ﻤﺎ ﺣ ﺜﻤـﺎ ﺎﻧـﺖ اﻟﻤـــــــــــــــﺪارات ﻣﻌﺮوﻓـــــــــــــــﺔ ــــــــﻮن ﻣﺤﺎﻃــــــــﺔ ﻓﺈﻧﻬــــــــﺎ ﺗ ﺑﺨﻄﻮط ﺑ ﻀﺎء . [NSF/AUI/NSF NRAO/B.Saxton] DF Tau DP Tau ZZ Tau SR20