Free Astronomy Magazine November-December 2026 ARABIC VERSION

ALMA watches a massive binary assemble in realtime byALMAObservatory Nicolás Lira Jill Malusky BárbaraFerreira singtheAtacamaLargeMil- limeter/submillimeterArray(ALMA),a stronomershavecaptured one of the most detailedthree- dimensionalviewsyetofa massive binary star system while itis still being born. By tracking themotionsoftwoyoung,massive starsovernearlyeightyears,the team found that the pair follows a highlystretched-outorbitandis surrounded by strongly tilted gas disks, both relative to each other andtothestars’orbit.Thefindings suggest the two stars didn’t form together from a single spinningdisk of material, as is often as-sumed, but instead formed inde- pendentlyandlatercametogether in a close gravitational encounter, revealing a new way close massive binary star systems may form. Most massive stars are born with stellarcompanions,andatleast90% are thought to exist in binary or higher-ordermultiplesystems.These massivebinariesgoontoshapetheir surroundings dramatically, through supernova explosions and the pro- duction of heavy elements. But be- cause most known massive binaries are only studied long after they’ve finishedforming,astronomershave NOVEMBER-DECEMBER2026 U ﻣﺠﻠﺔ FreeAstronomy ﺎﻟﻌﺮ ﺔ 46 أﻟﻤﺎ » « ﻳﺮﺻﺪ ﺗﺸ ّﻞ ﻧﻈﺎم ﻧ ﻤﻲﺛﻨﺎﺋﻲﺿ ﻢﻓﻲاﻟﺰﻣﻦ ـاﻟ ﺤﻘ ﻘﻲ : ﻘﻠﻢ ﻧﻴ ﻮﻻس ﻟ ا ﺟﻴﻞ ﻣﺎﻟﻮﺳﻜﻲ و ﺎر ﺮا ﻓ ﺮ ا ﻣﺮﺻﺪ أﻟﻤﺎ ﺎﺳﺘﺨﺪام ﻣﺼﻔﻮﻓﺔ أﺗﺎﻛﺎﻣﺎ ا ﻠﻴﻤﱰﻳﺔ دون / ا ﻠﻴﻤﱰﻳﺔ اﻟﻜﺒ ة ﺗﻤ ( أ ﺎ) ﻜّﻦ ﻋﻠﻤـﺎء اﻟﻔﻠـﻚ ﻣﻦ اﻟﺤﺼﻮل ﻋﲆ واﺣﺪة ﻣـﻦ أﻛﺜـﺮ اﻟﺼـﻮر اﻟﺘﻔﺼﻴﻠﻴﺔ ﺛﻼﺛﻴﺔ اﻷﺑﻌﺎد ﻟﻨﻈﺎم ﻧﺠﻤﻲ ﺛﻨﺎﺋﻲ ﺿﺨﻢ وﻫﻮ ﻻ ﻳـﺰال ﰲ ﻃـﻮر اﻟﺘﺸـﻜّﻞ وﻣـﻦ ﺧﻼل ﺗﺘﺒّﻊ ﺣﺮﻛﺔ ﻧﺠﻤ ﻓﺘﻴ ﺿﺨﻤ ﻋﲆ ﻣﺪى ﺛﻤﺎﻧﻲ ﺳﻨﻮات ﺗﻘﺮﻳﺒ ﺎً وﺟـ ﺪ اﻟﻔﺮﻳـﻖ أن اﻟﻨﺠﻤ ﻳﺘﺒﻌﺎن ﻣﺪار اً اﻹﺗﺴﺎع ﺷﺪﻳﺪ وﻳﺤﻴﻂ ﺑﻜــﻞ ﻣﻨﻬﻤــﺎ ﻗــﺮ ص ﻣــﻦ اﻟﻐــﺎز ﻳﻤﻴــﻞ ـــــــــــــــــــــــــــــــــــــ ﺑﺰاوﻳﺔ ﻛﺒ ة ﺳﻮاء ﺑﺎﻟﻨﺴﺒﺔ إﱃ اﻟﻘﺮص اﻵﺧﺮ أو ﺑﺎ ﻟﻨﺴﺒﺔ إﱃ ﻣﺴـﺘﻮى ﻣـﺪارﻫﻤﺎ ا ﺸـﱰك وﺗﺸ اﻟﻨﺘﺎ ﺋﺞ إﱃ أن اﻟﻨﺠﻤ ﻟﻢ ﻳﺘﺸﻜّﻼ ﻣﻌ ﺎً ﻣﻦ ﻗﺮص واﺣﺪ دوّار ﻣﻦ ا ﺎدة ﻛﻤﺎ ﻳﻔـﱰض ﺎً ﻏﺎﻟﺒ ﺑﻞ ﻧﺸﺄ ﻛﻞ ﻣﻨﻬﻤﺎ ﺑﺼﻮرة ﻣﺴﺘﻘﻠﺔ ﺛـﻢ اﻟﺘﻘﻴﺎ ﻻﺣﻘ ﺎً ﺧﻼل ﻣﻮاﺟﻬﺔ ﺟﺎذﺑﻴـﺔ ﻗﺮﻳﺒـﺔ وﻳﻜﺸﻒ ذﻟﻚ ﻋﻦ آﻟﻴﺔ ﺟﺪﻳﺪة ﻣﺤﺘﻤﻠﺔ ﻟﺘﺸﻜّﻞ اﻷﻧﻈﻤﺔ اﻟﻨ ﺠﻤﻴﺔ اﻟﺜﻨﺎﺋﻴﺔ اﻟﻀﺨﻤﺔ وا ﺘﻘﺎرﺑﺔ ﺗﻮﻟﺪ ﻣﻌﻈﻢ اﻟﻨﺠﻮم اﻟﻀﺨﻤﺔ ﺑﺮﻓﻘـﺔ ﻧﺠـﻮم ـــــــــــــــــــــــــــــــــــــ أﺧﺮى وﻳ ﻌﺘﻘﺪ أن 90 % ﻣﻨﻬﺎ ﻋﲆ اﻷﻗﻞ ﺗﻮﺟﺪ ﺿﻤﻦ أﻧﻈﻤﺔ ﺛﻨﺎﺋ ﻴﺔ أو أﻧﻈﻤـﺔ ﻣﺘﻌـﺪدة ذات رﺗـﺐ أﻋـﲆ وﺗـﺆﺛﺮ ﻫـﺬه اﻷﻧﻈﻤـﺔ اﻟﺜﻨﺎﺋﻴـﺔ اﻟﻀﺨﻤ ﺔ ﺑﺼﻮرة ﻛﺒ ة ﰲ ﺑﻴﺌﺘﻬﺎ ا ﺤﻴﻄﺔ ﻣﻦ ﺧﻼل اﻧﻔﺠﺎرات ا ﺴﺘﻌﺮات اﻟﻌﻈ ﻤﻰ وإﻧﺘـﺎج اﻟﻌﻨﺎﴏ اﻟﺜﻘﻴﻠﺔ ﻟﻜﻦ ﻣﻌﻈﻢ اﻷﻧﻈﻤﺔ اﻟﺜﻨﺎﺋﻴﺔ اﻟﻀﺨﻤﺔ ا ﻌﺮوﻓﺔ ﻻ ﺗُﺪرس إﻻ ﺑﻌـﺪ اﻛﺘﻤـﺎل ﺗﺸﻜّﻠﻬﺎ ﺑﻔﱰة ﻃﻮﻳﻠﺔ وﻟﺬﻟﻚ ﻟـﻢ ﺗـﺘﺢ أﻣـﺎم ﻋﻠﻤﺎء اﻟﻔﻠﻚ ﺳﻮى ﻓـﺮص ﻣﺤـﺪودة ﻟﺮﺻـﺪ ـــــــــــــــــــــــــــــــــــــ ﻧﻮﻓﻤﺒﺮ - ﺩﻳﺴﻤﺒﺮ 2 0 2 6