Teresikopu yemuchadenga yeJapan inowana kwainobva mwaranzi yakanyanyisa muGamma nyeredzi Cassiopeia

Vatsvagiri vepaUniversidade yeThe phenomenon, iyo yakashamisa nharaunda yesainzi yepasirese kweanoda kusvika makumi mashanu emakore, haina kugadzirwa nenyeredzi huru, asi kuti nemagineti jena diki inotenderera mutumbi wekutanga wedenga mune yakaoma uye inoenderera cosmic ballet.

Kujekeswa kweiyi enigma yezvemuchadenga yakagoneka nekuda kwekutarisisa kwepamusoro-soro kwakaitwa neTeresikopu yemuchadenga yeJapan XRISM. Iyo data yakaunganidzwa neazvino chizvarwa michina inosimbisa kuvepo kwekirasi yemabhinari masisitimu ayo, kusvika zvino, aigara chete mundima yedzidziso yekufungidzira mune yemazuva ano astrophysics, ichivhura nzira nyowani dzekunzwisisa stellar shanduko.

Iyo stellar system ine yakasarudzika maitiro akaita kuti kunzwisisa chiitiko kuome nekufamba kwemakore:
– Nyeredzi huru ndeyemhando isingawanzo Be, inoratidzwa nekutenderera kwakakurumidza.
– Muviri wedenga unoramba uchiburitsa zvinhu, uchigadzira dense circumstellar disk yakaitenderedza.
– Historical zviyero zvakaratidza kusimba kweX-rays zvakapetwa makumi mana kupfuura yaitarisirwa mwero.
– The plasma munharaunda inosvika tembiricha yakanyanyisa kudarika chiratidzo chemamiriyoni zana madhigirii Celsius.

Chisimbiso ichi chinopedza gakava redzidzo rakatanga muna 1976, richigadzira paradigm itsva yekutarisa mitumbi yedenga ine maitiro anotyisa emwaranzi. Chidzidzo chakadzama chinopa hwaro hwakasimba hwekuongorora mamwe masisitimu enyeredzi anoratidza masiginicha ane simba akafanana akapararira mugwara renyeredzi.

Nhoroondo yezvakaonekwa uye mamiriro enzvimbo inomaly

Kubva mukupera kwema1970, materesikopu epasi uye emuchadenga akarekodha mwero wesimba usingaenderane nechimiro chega chegamma star Cassiopeia, zvichigadzira dzidziso dzinoverengeka dzisinganzwisisiki pamusoro pekutanga kwemwaranzi ine simba iri.

Chikwata chemasaenzi chakaita makampeni matatu akasimba ekutarisa pakati pekupedzisira 2024 uye pakati pa2025, achivhara zvizere iyo binary system’s orbital nguva, iyo inofungidzirwa kunge ingangoita 203 Earth mazuva. Munguva iyi yenguva, vaongorori vakatarisa kusiyanisa mukusimba uye kufamba kweiyo yakanyanya kupisa plasma, vachitsvaga anowirirana mapatani ayo anogona kunyatsotsanangura kwainobva kwekutanga kwemwaranzi inosemesa yakaonekwa nema sensors orbital.

Spectra yakawanikwa mukati memwedzi yekuenderera mberi ichitarisisa yakaratidza kuti masiginecha eiyo inopisa plasma akachinja kumhanya nekufamba kwenguva nenzira yakanyatso kuenderana neyechipiri muviri. Iko Essa kusiyanisa kwakaperekedza kufamba kwe orbital kwe compact companion, zvichibvisa pachena Be nyeredzi seyokutanga kunobva X-ray emission. Shanduko yacho yakanyorwa nekuvimbika kwenhamba kusati kwamboitika munhoroondo yekutarisa kwehurongwa uhu, kugadzirisa humbowo hwekutanga hwakananga uye husingarambiki hwekuti iyo ultrahot material inobatanidzwa neanofambidzana nenyeredzi. Iyo data yakatibvumira kumisikidza akakosha emuviri paramita:
– Iko kumhanya kwemitsara ye spectral inobata makiromita mazana maviri pasekondi.
– Mamiriro ezvinhu emuchena mutsvuku asina simba remagineti akarambidzwa zvachose nezviyero.
– Orbital correlation yakabvisa iyo hypothesis yekubatanidzwazve kwemagineti pamusoro peiyo nyeredzi yekutanga.
– Iyo nyutroni nyeredzi modhi yakakoneswa zvakare nehunhu hwekubuda nesimba.

Mechanism yekutora zvinhu uye kugadzira simba

Kuchinja kwemaitiro kunoshanda kuburikidza nekuenderera mberi kwekufambisa kwehuwandu pakati pezvikamu zviviri zvekudenga. Nyeredzi yerudzi rwe Be, nekuda kwekutenderera kwayo kwedzungu, inoburitsa zvinhu zvakawanda zvinoumba dhisiki rakakura reequatorial rakaitenderedza.

Chikamu chakakosha chechinhu chakadzimwa ichi chinopedzisira chatorwa nesimba rinokweva remucheno wakavakidzana naye. Esse kubatwa kwemaitiro kunogadzira yechipiri accretion dhisiki, yakawanda denser uye ine simba, inotenderera yechipiri kombuta chinhu nekumhanya kukuru.

Simba remagineti rewhite dwarf rinoita sefaneli hombe, rinonangidzira kuyerera kwechinhu chakananga kumatanda echinhu chacho. Izvo chaizvo panguva iyi yechisimba chekuita maitiro iyo kinetic simba inoshandura, ichiburitswa muchimiro cheyakanyanya kusimba X-rays.

Ongororo yacho yakatsanangura kuti, nepo kuburitsa kukuru kunoitika pamatanda, chikamu chikuru cheiyi X-ray chinoguma chave kuratidzwa nepamusoro penzvimbo yakakora yewhite dwarf. Essa reflection dynamics inogadzira iyo yakaoma mwaranzi pateni inozoonekwa nemidziyo muTerra’s orbit.

Tekinoroji yepamusoro yechiJapan chekuyeresa chiridzwa

Kubudirira kwekuedza kwesainzi kwaienderana neiyo yepamusoro-chaiyo microcalorimeter inodaidzwa kuti Resolve, yakaiswa mubhodhi XRISM nzvimbo yekutarisa. Midziyo yacho yakaongorora X-ray spectra ine nhanho yeruzivo isati yamboitika mukutsvagisa kwechadenga, ichikunda zvipimo zvemisheni yapfuura.

Uku kugona kwepamusoro-soro kweruzivo rwemichina kwakabvumira vanoongorora nyeredzi kuti vasiyanise mafambiro akajeka akanyanya kunzvenga kunzwa kwezviridzwa zvakashandiswa mumakumi emakore achangopfuura. Kuronga kwehungwaru kwemishandirapamwe kwakavimbisa kutorwa kwedata pazvikamu zvakasiyana zvekutenderera kwe orbital.

Kusimbiswa kwechikamu chitsva che stellar systems

Mibairo yakawanikwa neUniversidade neLiège timu inosimbisa kuvepo kwemasisitimu anoumbwa kunyanya nyeredzi huru dzerudzi rweBe uye madiki machena mukugadzirisa magineti accretion. Ongororo dzenhamba dzakavandudzwa dzinoratidza kuti huwandu uhu hunomiririra zvikamu gumi kubva muzana zvenyeredzi Be dzakarongwa nekucherechedzwa nemasangano emuchadenga pasi rose, nhamba yakakosha zvikuru yezvenyeredzi.

Mashoko aya anoratidza kuti masisitimu aya anonyanya kudyidzana nenyeredzi Be hombe pasi rose. Essa kugovera chaiko kunosiyana zvakanyanya nefungidziro dzakagadzirwa kare, izvo zvakakanganisa zvairatidza huwandu hwehuwandu hwevanhu hunoumbwa zvikuru nenyeredzi dzakaderera. Kuwanikwa uku kunomanikidza kuvandudzwa kwekare kune stellar catalogs uye nzira iyo masayendisiti anoronga kupindirana pakati pemitumbi yedenga yedensity yakanyanyisa.

Inoda kudzokorora mumabhinari evolution modhi

Kusiyana kwakakosha pakati pedzidziso dzekare uye zvitsva zvakaonekwa zvinoratidza kudikanwa kwekukurumidzira kudzokorora masvomhu anotsanangura kushanduka kwemabhinari masisitimu pamusoro pemireniyamu. Kunyanya, zvidzidzo zvinonongedza kudikanwa kwekugadzirisa kwakanaka mukunzwisisa kugona kwekufamba kwevazhinji pakati pezvikamu zvenyeredzi panguva dzehupenyu hwavo hwakasiyana. Essa wongororo yakadzama yepfungwa dzemuchadenga inofambirana nemhedziso yedzimwe ongororo dzakati wandei dzichangoburwa dzakazvimirira dzichiongorora masisitimu akafanana muVia Láctea. Simbiso yekuti chinhu chakabatana idiki, chakaonda zvakanyanya uye chakapihwa simba remagineti rinokwanisa kuchinjisa accreting zvinhu zvinopa chidimbu chisipo kubatanidza dzidziso dzekushanduka-shanduka kwemagineti, zvichiratidza kuti kupindirana kwemagineti kunoita basa repakati zvakanyanya mukuparadza simba kupfuura zvaifungidzirwa kare.

Kukoshera kweboka renyeredzi pakuongorora nyeredzi

Nyeredzi yeGamma

Kuonekwa uye kuenderera mberi kwekutarisa nevanoongorora nyeredzi

Vacherechedzi vari kuchamhembe kwenyika yepasi vane mukana wekuona hurongwa hwenyeredzi neziso rakashama panguva dzehusiku dzine mamiriro akanaka emuchadenga uye kusvibiswa kwechiedza chakaderera.

Kushandiswa kwemateresikopu madiki ekutengesa kunokwana kuratidza mutsauko wenguva nenguva mukupenya kwayo, chiitiko chinokonzerwa zvakananga nekubuda kwechinhu chisingaperi kubva kunyeredzi huru kuenda kunze.

Nekuda kwekuonekwa kwayo kwakanaka uye nekusimba kwemaitiro ekuburitsa kwayo, mutumbi wedenga unoramba uri weimwe yeanonyanya kufarirwa uye anotariswa tarisiro nevese vari vaviri vanoongorora nyeredzi uye nyanzvi kubva kune makuru ekuongorora epasirese.

Kukanganisa kweramangwana patsvagiridzo yemafungu egiravhiti

Kunzwisisa kwakadzama kwemakanika eaya mabhinari masisitimu anopa maturusi akakosha ekudzidza zvakanyanyisa cosmic phenomena, kusanganisira kuburitswa kwakaoma kwemafungu esimba rinokwevera rinoitika muchikamu chekupedzisira chehupenyu hwenyeredzi dzinopfuura simba.

Nezvinhu zvinenge makumi maviri zvemudenga zvakada kufanana zvakatonyorwa mugwara renyeredzi, nzanga yesainzi ikozvino ine yakaedzwa uye yakaedzwa modhi yemuviri yekuongorora maitiro emwaranzi yemuchadenga nekusimba kwekuongorora kusati kwamboitika munhoroondo yezvenyeredzi zvemazuva ano.