Zotsalira za Milky Way yathu

Kuyambira pachiyambi cha chitukuko, asayansi akhala akuyesera kuti atulutse zinsinsi za mlalang'amba wathu. Ngakhale kuti zochitika zambiri zimachitika kutali kwambiri, zimene atulukirazi zikutithandiza kumvetsa bwino za m’mene timaonera Milky Way. Mwachitsanzo, gulu limodzi la nyenyezi zakutali, posachedwapa lakopa chidwi cha anthu ambiri achidwi. Gulu la akatswiri a zakuthambo apadziko lonse lapansi lapeza zomwe zingathetse kusiyana pakati pa zakale ndi zamakono za mlalang'amba wathu: zotsalira zakale za Milky Way.

Kodi chotsalira cha Outer Space ndi chiyani?

Gulu la nyenyezi lomwe langopezeka kumene la Milky Way, Terzan 5, mtunda wa makilomita 19,000 kuchokera pa Dziko Lapansi. Malingana ndi Francesco Ferraro wochokera ku yunivesite ya Bologna ku Italy komanso wolemba wamkulu wa kafukufukuyu, zomwe anapezazi "zikhoza kuwonetsa mgwirizano wochititsa chidwi pakati pa chilengedwe chapafupi ndi chakutali, mboni yomwe yatsala ya Galactic bulge msonkhano." Mwa kuyankhula kwina, Terzan 5 ikhoza kutithandiza kumvetsetsa bwino momwe milalang'amba imapangidwira, komanso, momwe unyinji waukulu woterowo unatha kupulumuka mosasokonezeka kwa zaka 12 biliyoni zapitazo.

Malinga ndi David Shiga, alipo nyenyezi zitatu zochokera ku nthawi zosiyanasiyana zomwe, monga akudzinenera, zikhoza kukhala "zaka makumi angapo a mamiliyoni a zaka [zaka] zonse." Poganizira malo ndi zaka za gulu la globular, Shiga akunena kuti Terzan 5 ingakhale umboni wa mlalang'amba wakale umene unalipo Milky Way isanayambe. Zomwe zatsala zikhoza kukhala umboni wakuti "unaphwanyidwa" ndi kulengedwa kwa mlalang'amba wathu.

Kodi chotsaliracho chimakhalapo bwanji m'Chilengedwe chathu?

Malinga ndi Pulofesa Dr. HM Schmid ku Institute for Astronomy ku Zurich, milalang’amba “inabadwa mwa kusakanikirana kwa zinthu za baryonic m’zitsime zomakula za zinthu zakuda m’Chilengedwe chomakula.” Pamene milalang’amba ikusintha, imadutsa munjira zingapo monga kusonkhanitsa mpweya kuti apange nyenyezi zazikulu komanso kulumikizana ndi milalang’amba ina.

Nyenyezi zimapangika pambuyo pa kugwa kwa mitambo yowundana ya mpweya yomwe imagwiritsa ntchito mphamvu zake zambiri pakuphulika kwa Supernova; kuphulikako kutatha, mipweyayo imaulukira m’Chilengedwe Chonse n’kupanga “mbadwo watsopano wa nyenyezi,” monga momwe Dr. Schmid ananenera.

Kodi zimenezi zingatanthauze chiyani kwa ife?

Ndi tsango lomwe latulukira kumene, Terzan 5, akatswiri a zakuthambo angamvetse bwino kucholoŵana koloŵetsedwamo m’mipangidwe ya mlalang’amba, osati kokha kwa Milky Way komanso kwa mitundu yosiyanasiyana ya milalang’amba imene ilipo mkati mwa Chilengedwe. Komanso, kupambana kwa Terzan 5 kumalola akatswiri a zakuthambo kulingalira za mbiri yakale ya Chilengedwe, motero, kukhazikitsa malingaliro okhudza Chilengedwe ndi tsogolo la mlalang'amba wathu.

Katswiri wa sayansi ya zakuthambo Piotto wa ku yunivesite ya Padua ku Italy, ananena kuti “nyenyezi si zapafupi monga mmene timaphunzitsira ana athu. Sikuti pali zambiri zoti tiphunzire zokhudza thambo la usana ndi usiku, koma palibe malire pa zimene akatswiri angadziŵe zokhudza mbiri yathu monga zamoyo zamoyo, ndipo ndife pulaneti limodzi lokha mumlalang’amba wonse.