Chithunzi cha dzenje lakuda mu mlalang'amba wathu

chithunzi cha dzenje lakuda mu mlalang'amba wathu

Zaka zitatu zapitazo, gulu la asayansi la Event Horizon Telescope (EHT) linadabwitsa dziko lonse ndi chithunzi choyamba cha dzenje lakuda lomwe linajambulidwa mumlalang'amba woyandikana nawo wa M87. Tsopano, gulu lomwelo kwa nthawi yoyamba anasonyeza mwachindunji zithunzi umboni wa ndi chithunzi choyamba cha dzenje lakuda mu mlalang'amba wathu, pogwiritsa ntchito zowonera pagulu lapadziko lonse la matelesikopu a wailesi.

M'nkhaniyi tikuuzani momwe chithunzi cha dzenje lakuda mu mlalang'amba wathu wapezeka komanso zotsatira zake.

Jambulani chithunzi cha dzenje lakuda mumlalang'amba wathu

sagittarius a

Uyu ndi Sagittarius A *, gwero losinthika kwambiri la radiation lomwe likusintha mosalekeza. Asayansi akhala akugwiritsa ntchito ma aligorivimu kwa zaka zambiri kuti akonzenso chisinthiko chake pakapita nthawi ngati "filimu", koma tsopano apambana ndipo apereka zithunzi zawo zosakhalitsa.

Kuphatikiza pa mapepala omwe adasindikizidwa m'makalata apadera a The Astrophysical Journal Letters, Gulu Logwirizana la Event Horizon Telescope (EHT) lavumbulutsa zomwe zachitika lero pamisonkhano yapadziko lonse lapansi yomwe imachitika nthawi imodzi padziko lonse lapansi.

"Ichi ndi chithunzi choyamba cha Sagittarius A *, dzenje lakuda lakuda kwambiri pakatikati pa Milky Way, lomwe ndi lalikulu kuwirikiza 4 miliyoni kuposa Dzuwa. Timapereka umboni woyamba wachindunji wa kukhalapo kwawo, "atero Sara Issaoun, Harvard Astrophysicist A Center Research Fellow, polankhula ku likulu la European Southern Observatory (ESO) ku Munich, Germany.

Zotsatirazo zinapereka umboni wokwanira wakuti chinthucho chinali dzenje lakuda ndipo zinapereka umboni wofunika kwambiri wokhudza mmene nyenyezi zazikuluzikuluzi zikuyendera, zimene anthu amaganiza kuti zili pakati pa milalang’amba yambiri.

Malinga ndi asayansi opitilira 300 ochokera m'malo a 80 omwe adapezekapo, dzenje lalikulu "lolemera" pafupifupi 4 miliyoni zozungulira dzuwa, m'dera lomwe silili lalikulu kuposa dongosolo lathu ladzuwa, 27.000 kuwala zaka kuchokera pa dziko lathu lapansi. Malinga ndi mmene timaonera, ndi kukula kwa donati pa mwezi kumwamba.

umboni woyamba wooneka

chithunzi cha chithunzi cha dzenje lakuda la mlalang'amba wathu

Chithunzichi ndi kuyang'ana kwakutali kwa chinthu chachikulu chomwe chili pakati pa mlalang'amba wathu. Asayansi awonapo nyenyezi zozungulira zinthu zazikulu kwambiri, zong'ambika, zosaoneka pakati pa Milky Way. Izi zikusonyeza mwamphamvu kuti thupi lakumwamba Sadge A* ndi dzenje lakuda.

Ngakhale kuti sitingathe kuwona dzenje lakuda palokha chifukwa ndi mdima wathunthu, mpweya wonyezimira wozungulira umasonyeza chinthu chosiyana: dera lapakati lamdima (lotchedwa mthunzi) lozunguliridwa ndi mphete yowala. Mawonedwe atsopanowa amajambula kuwala kopindika ndi mphamvu yokoka ya dzenje lakuda.

"Tidadabwa kuti kukula kwa mpheteyo kumagwirizana ndi zomwe Einstein adaneneratu za kugwirizana bwino," adatero Geoffrey Bower, wasayansi wamkulu wa polojekiti ya EHT ku Institute for Astronomy and Astrophysics, Academia Sinica, Taipei. “Zinthu zimene sizinachitikepo n’kale lonsezi zimatithandiza kumvetsa bwino zimene zikuchitika pakati pa mlalang’amba wathu. perekani zidziwitso zatsopano za momwe mabowo akuluakulu akuda amalumikizirana ndi chilengedwe chawo".

Kuwona chinthu chakutali chotere kungafune telesikopu yapadziko lapansi, ngakhale pafupifupi kapena mofanana, ndipo ndi zomwe EHT ingakwaniritse. Lili ndi ma telesikopu asanu ndi atatu a wailesi omwe ali ku Chile, United States, Mexico, Spain ndi South Pole. Ku USA, yoyendetsedwa ndi European Southern Observatory (ESO) ndi anzawo apadziko lonse lapansi m'chipululu cha Atacama ku Chile, ku Europe Institute for Millimetric Radio Astronomy (IRAM) ku Sierra Nevada (Granada) ndiyodziwika bwino.

EHT inawona Sagittarius A* kwa mausiku angapo otsatizana, kusonkhanitsa deta kwa maola, mofanana ndi kugwiritsa ntchito nthawi yayitali pa kamera yokhazikika. Pakati pa ma telescope a wailesi omwe amapanga EHT, mlongoti wa IRAM wa Kutalika kwa 30 metres kudachita mbali yofunika kwambiri pakuwunika, kulola kupeza zithunzi zoyambirira.

Kupyolera mu njira yotchedwa very long reference interferometry (VLBI, yomwe imagwiritsa ntchito masamu m'malo mwa magalasi), zizindikiro zochokera ku telesikopu zonse zawailesi zaphatikizidwa ndipo deta yawo yasinthidwa ndi ma algorithms ndi makompyuta akuluakulu kuti apangenso chithunzi chabwino kwambiri.

Thalia Traianou, wofufuza ku Andalusian Institute of Astrophysics (IAA-CSIC), akuwonjezera kuti: "Zamakono zidzatilola kupeza zithunzi zatsopano za mabowo akuda ngakhale mafilimu."

Mabowo awiri akuda ofanana

njira yamkaka

Ponena za chithunzi cha dzenje lakuda mu mlalang'amba M87 wotengedwa mu 2019, asayansi amavomereza kuti mabowo awiri akuda amawoneka ofanana kwambiri, ngakhale dzenje lakuda mumlalang'amba wathu. ndi yaying'ono kuwirikiza ka 1000 komanso yocheperako kuposa M87*, yomwe ili kutali ndi zaka 55 miliyoni za kuwala.. Nyenyezi yaikuluyi ili ndi unyinji wa dzuŵa 6.500 biliyoni ndi m’mimba mwake wa makilomita 9.000 biliyoni, kutanthauza kuti mapulaneti ozungulira dzuŵa mpaka Neptune adzalowamo.

"Tili ndi mitundu iwiri yosiyana kwambiri ya milalang'amba ndi mikwingwirima iwiri yosiyana kwambiri ya mabowo akuda, koma pafupi ndi m'mphepete mwa mabowo akudawa, amawoneka ofanana modabwitsa," adatero Sera Markoff, wapampando wa EHT Science Committee komanso pulofesa wa theoretical astrophysics. ku yunivesite ya Amsterdam. Izi zimatiuza kuti mgwirizano wamba umalamulira zinthu izi moyandikira, komanso kuti kusiyana kulikonse komwe timawona kutali ndi chifukwa cha kusiyana kwa nkhani yozungulira dzenje lakuda. »

Umu ndi momwe Roberto Emparan, katswiri wa sayansi ya zakuthambo ndi pulofesa wa ICREA ku Institute of Cosmology ya yunivesite ya Barcelona, ​​​​akufotokozera SMC Spain: "Pakadali pano, tikhoza kunena kuti kufanana pakati pa fano la M87 * kuchokera ku 2019 ndi chithunzi chapano chikuchokera ku SgrA * yomwe ikuwonetsa kuti, mosasamala kanthu za kukula kwa dzenje lakuda, malo omwe ali pafupi ndi dzenje lakuda ndi ofanana kwambiri. Zomwe tikuwona m'tsogolomu zidzatiuza zambiri za zomwe zili pafupi ndi dzenje lakuda, ndipo tikhoza kudziwa ngati chinthucho ndi chomwe Einstein ananeneratu, kapena 'wonyenga' kapena 'copycat'.

Gonzalo J. Olmo, pulofesa wa Dipatimenti ya Theoretical Physics ndi IFIC ya Hybrid Center ya University of Valencia ndi CSIC, ndi Diego Rubiera-García, wofufuza Talent wa Dipatimenti ya Theoretical Physics ya Complutense University of Madrid ikugwirizana. "Ngakhale kuti chinthu ichi ndi chokulirapo kambirimbiri kuposa zinthu zomwe zawonedwa masiku ano mu Milky Way, kufanana kwake ndi dzenje lathu lakuda" laling'ono likuwonetsa kuchuluka kwa sayansi yomwe imafotokoza zinthu izi", iwo akutsindika ku SMC Spain.

Komabe, zotsatira zamasiku ano ndizovuta kwambiri kuposa M87*, ngakhale Sagittarius A* ili pafupi. Gululi lidayenera kupanga zida zatsopano zofotokozera kayendedwe ka gasi kuzungulira Sgr A*. Ngakhale kuti M87 * ndi lens yosavuta komanso yokhazikika, pafupifupi zithunzi zonse zimawoneka zofanana, Sgr A * si.

"Gasi pafupi ndi dzenje lakuda akuyenda pa liwiro lomwelo, pafupifupi mofulumira ngati kuwala, pafupi ndi Sagittarius A * ndi M87 *," anafotokoza wasayansi wa EHT Chi-kwan Chan wa Steward Observatory ndi Dipatimenti ya Astronomy ndi Data. Arizona, pamene mpweya umatenga masiku kapena masabata kuti uzungulira M87* yaikulu, Sagittarius A* yaying'ono kwambiri imamaliza kuzungulira mphindi zochepa.

"Izi zikutanthauza kuti kuwala ndi mawonekedwe a mpweya wozungulira Sagittarius A* akusintha mofulumira pamene EHT ikugwirizana kuti iwonetsere: zili ngati kuyesa kupeza chithunzi cha kagalu yemwe akuthamangitsa mchira wake mwachanguanapitiriza.

Chithunzi cha Sgr A* chakuda cha dzenje ndi avareji ya zithunzi zosiyanasiyana zomwe gululo linatulutsa, pomaliza kuwulula nyenyezi yayikulu pakatikati pa Milky Way kwa nthawi yoyamba.

Ndikukhulupirira kuti ndi chidziwitsochi mungaphunzire zambiri za zithunzi zomwe zagwidwa ndi dzenje lakuda mu mlalang'amba wathu.


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