Ka Mots'eanong 2023, nakoana kamora hore LIGO (Laser Interferometer Gravitational-wave Observatory) e fetohe bakeng sa tlhahlobo ea eona ea bone, e ile ea fumana leqhubu la khoheli ho tsoa ho thulano ea ntho, eo ho ka etsahalang hore ke naleli ea nyutrone, e nang le lesoba le letšo leo ho belaelloang hore le na le boima ba makhetlo a 2.5 ho isa ho a 4.5 ho feta a Letsatsi la rona.
Letšoao lena, le bitsoang GW230529, le khahla bafuputsi hobane boima ba "black hole" bo oela ka har'a seo ho thoeng ke lekhalo le leholo pakeng tsa linaleli tse boima ka ho fetisisa tse tsejoang tsa neutron, tse fetang boima ba letsatsi tse peli, le masoba a matšo a tsejoang a le bobebe, a batlang. makhetlo a mahlano a letsatsi. Le hoja leqhubu la khoheli le le le leng le ke ke la senola 'nete ea ntho ena, ho fumanoa ha liketsahalo tse tšoanang nakong e tlang, haholo-holo tse tsamaeang le ho phatloha ha khanya, ho ka tšoara senotlolo sa ho araba potso ea hore na masoba a matšo a bobebe a ka ba joang.
Setšoantšo se bontša ho kopana le ho kopanngoa ha lesoba le letšo le ka tlaase-tlase (ka holim'a bohlooho bo lefifi) le naleli ea neutron (e holofetseng haholo ke matla a khoheli a lesoba le letšo). Setšoantšo sena se ntseng se le teng ho tloha papisong e kopantseng se totobatsa likaroloana tse tlase tsa naleli ea neutron, ho tloha ho ligrama tse 60 ka cubic centimeter (boputsoa bo lefifi) ho isa ho 600 kilograms ka cubic centimeter (e tšoeu). Sebōpeho sa eona se totobatsa ho senyeha ho matla ha thepa e tlaase-tlaase ea naleli ea neutron. Credit Credit: Ivan Markin, Tim Dietrich (Univesithi ea Potsdam), Harald Paul Pfeiffer, Alessandra Buonanno (Max Planck Institute for Gravitational Physics
Jenne Driggers (PhD '15) o re: "Lintho tsa morao-rao li bonts'a bokhoni bo tsotehang ba mahlale a marang-rang a detector-wave detector, a nang le kutloelo-bohloko haholo ho feta kamoo a neng a le kateng lekhetlong la boraro la ho shebella," ho bolela Jenne Driggers (PhD 'XNUMX), setsebi se ka sehloohong sa ho lemoha LIGO Hanford, Washington, o mong oa meaho e 'meli, hammoho le LIGO Livingston e Louisiana, e etsang LIGO Observatory.
LINK e entse histori ka 2015 ka mora ho etsa phumano ya pele e tobileng ya maqhubu a kgohedi sebakeng. Ho tloha ka nako eo, LIGO le sebui sa molekane oa eona Europe, Virgo, ba fumane likopano tse ka bang 100 lipakeng tsa masoba a matšo, tse seng kae lipakeng tsa linaleli tsa neutron, hammoho le ho kopana lipakeng tsa linaleli tsa nyutrone le masoba a matšo. Mofuputsi oa Japane KAGRA o ile a ikopanya le marang-rang a matla a khoheli ka selemo sa 2019, mme sehlopha sa bo-ramahlale se sekasekang datha ho tsoa ho li-detectors tsena tse tharo se tsejoa e le tšebelisano ea LIGO-Virgo-KAGRA (LVK). Lits'oants'o tsa LIGO li tšehetsoa ka lichelete ke National Science Foundation (NSF), 'me li ile tsa emoloa, tsa hahoa,' me li sebelisoa ke Caltech le MIT.
Liphuputso tsa morao-rao li boetse li bontša hore ho thulana ho amanang le masoba a matšo a bobebe ho ka 'na ha ata ho feta kamoo ho neng ho lumeloa pele.
"Tlhahiso ena, ea pele ea liphetho tsa rona tse thabisang ho tsoa papaling ea bone ea LIGO–Virgo–KAGRA, e senola hore ho ka ba le sekhahla se holimo sa likhohlano tse tšoanang lipakeng tsa linaleli tsa neutron le masoba a matšo a tlase ho feta kamoo re neng re nahanne pele," ho bolela Jess McIver. motlatsi oa moprofesa Univesithing ea British Columbia, motlatsi oa 'muelli oa LIGO Scientific Collaboration, le motho eo e kileng ea e-ba setsebi sa postdoctoral Caltech.
Pele ho ketsahalo ea GW230529, ntho e 'ngoe e khahlang ea batho ba nang le lekhalo la bongata e ne e khethiloe. Ketsahalong eo, e etsahetseng ka Phato 2019 mme e tsejoa e le GW190814, a Ho ile ha fumanoa ntho e nyenyane ea mahlaseli a letsatsi a 2.6 e le karolo ea ho thulana ha bokahohle, empa bo-rasaense ha ba na bonnete ba hore na e ne e le naleli ea neutron kapa lesoba le letšo.
Ka mor'a khefu bakeng sa ho lokisa le ho ntlafatsa, lebelo la bone la ho shebella li-detectors le tla tsoela pele ka la 10 Mmesa, 2024, 'me le tla tsoela pele ho fihlela Hlakola 2025.
E ngotsoe ke Whitney Clavin
Source: caltech
