Muna Chivabvu 2023, nguva pfupi mushure mekunge LIGO (Laser Interferometer Gravitational-wave Observatory) yatendeuka kuti iite yechina yekutarisa, yakaona giravitational-wave chiratidzo kubva pakudhumhana yechinhu, ingangove nyeredzi yenyuturoni, ine buri dema rinofungidzirwa rine huremu hunosvika 2.5 kusvika 4.5 kupfuura hweZuva redu.
Chiratidzo ichi, chinodaidzwa kuti GW230529, chinokatyamadza vatsvakurudzi nekuti mumiriri wegomba dema anowira mukati meanonzi mukaha mukuru pakati penyeredzi dzinonyanya kuzivikanwa dzemanyutroni, idzo dzinoti pfuurei miviri miviri yesolar, uye maburi matema akareruka, anenge shanu dzezuva. Nepo chiratidzo chegiravhiti chega chega chisingagoni kuratidza chimiro chechokwadi chechinhu ichi, zvichaitika mune ramangwana rezviitiko zvakafanana, kunyanya izvo zvinoperekedzwa nekuputika kwechiedza, zvinogona kubata kiyi yekupindura mubvunzo wekuti maburi matema angave akareruka sei.
Mufananidzo uyu unoratidza kubatana nekubatanidzwa kwegomba dema rezasi-guru (dark grey surface) ine neutron nyeredzi (yakaremara zvikuru negiravhiti yegomba dema). Uyu mufananidzo uchiri kubva pakubatanidza simulation unongoratidzira nyeredzi yenyutroni yakaderera-density zvikamu, kubva pamagiramu makumi matanhatu pacubic centimita (yakasviba yebhuruu) kusvika ku60 kilogiramu pa cubic centimita (chena). Chimiro chayo chinoratidza kusimba kwakasimba kweiyo yakaderera-density zvinhu zveneutron nyeredzi. Mufananidzo Chikwereti: Ivan Markin, Tim Dietrich (Yunivhesiti yePotsdam), Harald Paul Pfeiffer, Alessandra Buonanno (Max Planck Institute for Gravitational Physics
"Zvazvino zvakawanikwa zvinoratidza kugona kwesainzi kunoshamisa kweiyo gravitational-wave detector network, iyo inotarisisa zvakanyanya kupfuura zvayaive panguva yechitatu yekucherechedza," anodaro Jenne Driggers (PhD '15), anoona nezvesainzi anotungamira kuLIGO Hanford muWashington, chimwe chezvivakwa zviviri, pamwe neLIGO Livingston muLouisiana, izvo zvinoumba LIGO Observatory.
LIGO yakaita nhoroondo muna 2015 mushure mekuita yekutanga kuona kwakananga kwemafungu egiravhiti mudenga. Kubva ipapo, LIGO nemutambi wayo wekuvheneka muEurope, Virgo, vaona kubatanidza zana pakati pemakomba matema, mashoma pakati penyeredzi dzeneutron, pamwe nekubatanidzwa pakati penyeredzi dzenyutroni nemakomba matema. Iyo yekuJapan detector KAGRA yakabatana neiyo gravitational-wave network muna 100, uye timu yesainzi inoongorora pamwe chete data kubva kune ese matatu madhijitari anozivikanwa semubatanidzwa weLIGO-Virgo-KAGRA (LVK). MaLIGO anocherechedzwa anotsigirwa neNational Science Foundation (NSF), uye akaumbwa, akavakwa, uye anoshandiswa neCaltech neMIT.
Izvo zvichangoburwa zvakawanikwa zvinoratidzawo kuti kudhumhana kunosanganisira maburi matema asingaremi anogona kunge akajairika pane zvaimbotendwa.
"Kuonekwa uku, kwekutanga kwemhedzisiro yedu inonakidza kubva kune yechina LIGO-Virgo-KAGRA yekutarisa kumhanya, kunoratidza kuti panogona kunge paine mwero wepamusoro wekudhumhana kwakafanana pakati penyeredzi dzenyutroni nemakomba matema mashoma kupfuura zvataimbofunga," anodaro Jess McIver. mubatsiri purofesa paYunivhesiti yeBritish Columbia, mutevedzeri wemutauriri weLIGO Sayenzi Kubatana, uye aimbove postdoctoral shamwari kuCaltech.
Chiitiko cheGW230529 chisati chaitwa, chimwe chinhu chinokatyamadza chevazhinji-gap chakange chaonekwa. Muchiitiko ichocho, chakaitika muna Nyamavhuvhu 2019 uye chinozivikanwa seGW190814, a compact chinhu che 2.6 solar masses chakawanikwa sechikamu chekudhumhana kwepasi, asi vesainzi havana chokwadi kana yaive nyeredzi yenyuturoni kana gomba dema.
Mushure mekuzorora kwekugadzirisa nekusimudzira, dhizaini yechina yekutarisa kumhanya ichatangazve muna Kubvumbi 10, 2024, uye ichaenderera kusvika Kukadzi 2025.
Yakanyorwa naWhitney Clavin
Source: caltech
