Free Astronomy Magazine May-June 2026 ARABIC VERSION

MAY-JUNE2026 T his image from the Digitized SkySurvey(DSS)showsthere- gion of the sky around the dead star RXJ0528+2838, which is located at the very centre of the image. [ESO/Digitized Sky Survey 2. Acknowledgement:D.DeMartin] implythatthewhitedwarfhasbeen expellingapowerfuloutflowforat least 1000 years. Scientists don’t knowexactlyhowadeadstarwith- outadisccanpowersuchalong-last- ing outflow — but they do have a guess.Thiswhitedwarfisknownto hostastrongmagneticfield,which has been confirmed by the MUSE data.Thisfieldchannelsthematerial stolen from the companion star di- rectlyontothewhitedwarf,without formingadiscaroundit. “Ourfind- ing shows that even without a disc, these systems can drive powerful outflows, revealing a mechanism we do not yet understand. This discov- ery challenges the standard picture of how matter moves and interacts in these extreme binary systems,” Iłkiewicz explains. The results hint at a hidden energy source, likely the strong magnetic field, but this ‘mystery engine’, as Scaringi puts it, still needs to be in- vestigated. The data show that the current magnetic field is only strong enoughtopowerabowshocklast- ing for a few hundred years, so it only partly explains what the as- tronomers are seeing. Tobetterunderstandthenatureof suchdisclessoutflows,manymorebi- nary systems need to be studied. ESO’supcomingExtremelyLargeTel- escope (ELT) will help astronomers “to map more of these systems as wellasfainteronesanddetectsimi- larsystemsindetail,ultimatelyhelp- inginunderstandingthemysterious energy source that remains unex- plained,” asScaringiforesees.     ﺗﻈﻬــﺮ ﻫــﺬﻩ اﻟﺼــﻮرة ﻣــﻦ اﻟﻤﺴــﺢ اﻟﺮﻗﻤــﻲ ﻟﻠ ) ﺴـــــــــــﻤﺎء DSS ( اﻟﻤﻨﻄﻘـــــــــــ ﺔ ﻣـــــــــــﻦ اﻟﺴـــــــــــﻤﺎء ــﺖ ــﺎﻟﻨ ﻢ اﻟﻤ اﻟﻤﺤ ﻄــﺔ RXJ0528+2838 ﻘﻊ واﻟﺬ ﻓﻲﻣﺮﻛﺰ اﻟﺼﻮرة ﺗﻤﺎﻣًﺎ . [ESO/Digitized Sky Survey 2. Acknowledgement: D. De Martin] اﻟﻘﻮﺳﻴﺔ إﱃ أن اﻟ ﻘﺰم اﻷﺑﻴﺾ ﻗﺪ أﻃﻠﻖ ﺗﺪﻓﻘ ﺎً ﺎً ﻗﻮﻳ ﺎً ﺧﺎرﺟﻴ ﺪة ﻻ ﺗﻘﻞ ﻋﻦ 1000 وﻻ ﻋـﺎم ﻳﻌﺮف اﻟﻌﻠﻤﺎء ﻋﲆ وﺟﻪ اﻟﺪﻗـﺔ ﻛﻴـﻒ ﻳ ﻤﻜـﻦ ﻟﻨﺠﻢ ﻣﻴﺖ وﺑﺪون ﻗـﺮص ﺗﺮاﻛﻤـﻲ أن ﻳ ﻨـﺘﺞ ﺎً ﺗﺪﻓﻘ ﻃﻮﻳﻞ اﻷﻣﺪ ﺑﻬﺬا اﻟﺸ ﻜﻞ ﻟﻜـﻦ ﻟـﺪﻳﻬﻢ ﻓﺮﺿﻴﺔ ﻣﺤﺘﻤﻠـﺔ إذ ﻳ . ﻌـﺮف أن ﻫـﺬا اﻟﻘـ ﺰم اﻷﺑﻴﺾ ﻳﻤﺘﻠﻚ ﻣﺠﺎﻻً ﻣﻐﻨﺎﻃﻴﺴﻴ ﺎً ﺎً ﻗﻮﻳـ وﻗـﺪ أﻛﺪت ﺑﻴﺎﻧـﺎت أداة ﻣﻴـﻮز ذﻟـﻚ وﻳﻌﻤـﻞ ﻫـﺬا ا ﺠﺎل ﻋﲆ ﺗﻮﺟﻴﻪ ا ﺎدة ا ﺴﺤﻮﺑﺔ ﻣﻦ اﻟﻨﺠﻢ ا ﺮاﻓﻖ ﻣﺒـﺎﴍة ﻧﺤـﻮ اﻟﻘـﺰم اﻷﺑـﻴﺾ دون ﺗﻜﻮ ﻳﻦ ﻗﺮص ﺣﻮﻟـﻪ . وﻳﻀـﻴﻒ إﻳـﻮﻛﻔﻴﺘﺶ : ﻈﻬﺗ» ﺮ ﻧﺘﺎﺋﺠﻨﺎ أﻧـﻪ ﺣﺘـﻰ ﰲ ﻏﻴـﺎب ﻗـﺮص ﻳﻤﻜﻦ ﻟﻠﻤﺮﺻـﺪ اﻷوروﺑـﻲ اﻟﺠﻨـﻮﺑﻲ ﻋﻠﻤـﺎء اﻟﻔﻠﻚ ﻋﲆ » رﺳـﻢ ﺧـﺮاﺋﻂ ﺰﻳـﺪ ﻣـﻦ ﻫـﺬه اﻟﱰاﻛﻢ ﻳﻤﻜﻢ ﻞﺜ ﻫﺬه ا ﻷﻧﻈﻤﺔ ﺗﻮﻟﻴﺪ ﺗﺪﻓﻘﺎت ﺧﺎرﺟﻴﺔ ﻗﻮﻳﺔ ﻣﻮﺣﻴﺔ ﺑﻮﺟﻮد آﻟﻴﺔ ﻟﻢ ﻧﻔﻬﻤﻬﺎ . ﺑﻌـﺪ إن ﻫــﺬا اﻻﻛﺘﺸــﺎف ﻳﺘﺤـﺪى اﻟﺼـﻮرة اﻟﻘﻴﺎﺳﻴﺔ ﻟﻜﻴﻔﻴﺔ اﻧﺘﻘﺎل ا ـﺎدة وﺗﻔﺎﻋﻠﻬـﺎ ﰲ ﻫـﺬه اﻷﻧﻈﻤـﺔ اﻟﺜﻨﺎﺋﻴـﺔ ا ﺘﻄﺮﻓــﺔ «. ﺗﺸـ اﻟﻨﺘﺎﺋﺞ إﱃ وﺟﻮد ﻣﺼﺪر ﻃﺎﻗﺔ ﺧﻔﻲ ﻗﺪ ﻳﻜﻮن ا ﺠﺎل ا ﻐﻨﺎﻃﻴﴘ اﻟﻘﻮي إﻻ أن ﻫﺬا ا » ﺤـﺮك اﻟﻐﺎﻣﺾ « ﻛﻤﺎ ﻳﺼـﻔﻪ ﺳـﻜﺎرﻳﻨﻐﻲ ﻻ ﻳـﺰال ﺑﺤﺎﺟــﺔ إﱃ ﻣﺰﻳ ـﺪ ﻣ ـﻦ اﻟﺪراﺳـﺔ . وﺗُﻈﻬــﺮ اﻟﺒﻴﺎﻧﺎت أن ﺷﺪة ا ﺠﺎل ا ﻐﻨﺎﻃﻴﴘ اﻟﺤﺎﻟﻴـﺔ ﺗﻜﻔﻲ ﻓﻘﻂ ﻟﺘﻐﺬﻳـﺔ ﺻـﺪﻣﺔ ﻗ ﻮﺳـﻴﺔ ﺗـﺪوم ﻟﺒﻀﻊ ﻣﺌﺎت ﻣﻦ اﻟﺴﻨ ﻣﻤﺎ ﻳﻌﻨﻲ أﻧﻪ ﻳﻔﴪ ﺟﺰءًا ﻓﻘﻂ ﻣﻤﺎ ﻳﺮﺻﺪه ﻋﻠﻤﺎء اﻟﻔﻠﻚ . وﻟﻔﻬـﻢ ﻃﺒﻴﻌﺔ ﻫﺬه اﻟﺘﺪﻓﻘﺎت اﻟﺨﺎرﺟﻴﺔ اﻟﺨﺎ ﻟﻴﺔ ﻣﻦ اً ﺟﺰء ﻓﻘﻂ ﻣﻤﺎ ﻳﺮﺻﺪه ﻋﻠﻤﺎء اﻟﻔﻠﻚ . وﻟﻔﻬـﻢ ﻃﺒﻴﻌﺔ ﻫﺬه اﻟﺘﺪﻓﻘﺎت اﻟﺨﺎرﺟ ﻴﺔ اﻟﺨﺎﻟﻴﺔ ﻣﻦ اﻷﻗﺮاص ﺑﺸﻜﻞ أﻓﻀﻞ ﻳﻠﺰم دراﺳﺔ ﻋﺪد أﻛﱪ ﻣﻦ اﻷﻧﻈﻤﺔ اﻟﺜﻨﺎﺋﻴﺔ . وﻣﻦ ا ﺘﻮﻗﻊ أن ﻳﺴﺎﻋﺪ اﻟﺘﻠﺴﻜﻮب ﻓﺎﺋﻖ اﻟﻜﱪ اﻟﻘﺎدم اﻟﺘﺎﺑﻊ ﻟﻠﻤﺮﺻﺪ اﻷوروﺑﻲ اﻟﺠﻨﻮﺑﻲ ﻋﻠﻤﺎء اﻟﻔﻠﻚ ﻋـﲆ » رﺳـﻢ ﺧﺮاﺋﻂ ﺰﻳﺪ ﻣﻦ ﻫﺬه اﻷﻧﻈﻤـﺔ ﺑﻤـﺎ ﰲ ذﻟـﻚ اﻷﻧﻈﻤﺔ اﻟﺨﺎﻓﺘﺔ اﻛﺘو ﺸﺎف أﻧﻈﻤـﺔ ﻣﻤﺎﺛﻠـﺔ ﺑﺘﻔﺼﻴﻞ أﻛﱪ ﻣﻤﺎ ﺳﻴﺴﻬﻢ ﰲ ﻧﻬﺎﻳﺔ ا ﻄـﺎف ﰲ ﻓﻬﻢ ﻣﺼﺪر اﻟﻄﺎﻗﺔ اﻟﻐﺎﻣﺾ اﻟﺬي ﻻ ﻳـﺰال «ﴪﱠ ـ ﻏ ﻣﻔ وﻓﻖ ﻣـﺎ ﻳﺘﻮﻗﻌـﻪ ﺳـﻜﺎرﻳﻨﻐﻲ وﻏ ه ﻣﻦ اﻟﻌﻠﻤﺎء . ﻧﺤﻮ 1000 ﺳﻨﺔ ﺿـﻮﺋﻴﺔ ﰲ ﻛﻮﻛﺒﺔ اﻟﺪﺟﺎﺟﺔ وﻳﺤﺘﻮي ﻋﲆ ﻧﺠﻢ ﻣﺮﻛﺰي ﻣﺤﺠﻮب ﺧﻠﻒ ﺳﺤﺎﺑﺔ ﻛﺜﻴﻔﺔ ﻣﻦ اﻟﻐﺒـﺎر وﻻ - ﻣﺎﻳﻮ ﻳﻮﻧﻴﻮ 2 0 2 6