Boka revanoongorora nyeredzi vachangobva kuwana chinhu chitsva mu asteroid bhandi. Nerubatsiro rweteresikopu yemuchadenga Hubble, chimwe chinhu chisati chamboitika chawanwa. Bhandi reasteroid inzvimbo iri pakati peMars neJupiter, uko maasteroid akawanda anotenderera zuva. Kunyange zvazvo mavambo ayo asingagoni kuva 100% akatsunga, pane dzidziso inogamuchirwa yakawanda yokuti i "nyika yakakundikana." Panguva yekugadzirwa kwe solar system, haina kusungirirwa sepasi rakakwana uye, mushure mezviitiko zvakawanda zvemeteor, yakaparadzana, zvichiita kuti pave nekugadzirwa kwebhanhire razvino.
Chinhu chichangobva kuwanikwa Inosanganisira maviri asteroids anotenderera mumwe nemumwe., zvichiita kuti ive yekutanga yakanyorwa binary asteroid. Pamusoro pezvo, yakarongedzerwa sekometi, nekuti ine coma inopenya uye muswe wakareba. Tsvagiridzo yeichi chiwanikwa yakapihwa mujenari muzvarirwo, uye bhinari comet 288P yakatumidzwa zita, ichizvisimbisa seyekutanga bhinari asteroid kuiswa sekometi.
Kuferefetwa
Kutariswa kwekutanga kwechinhu ichi kwakaitwa munaGunyana 2016, nguva pfupi yadarika 288P isati yasvika perihelion, poindi mukutenderera kwayo pedyo neZuva Izvi zvakabvumira kuongororwa kwakadzama kwechinhu ichi uchishandisa teresikopu yeHubble. Panguva yekucherechedza uku, zvakaonekwa kuti ndizvo maviri asteroids ehukuru hwakafanana uye uremu, anotenderera mumwe nemumwe ari chinhambwe chingangoita 100 km.
Mukuwedzera, zvaikwanisika kuona chando pamusoro peasteroids. Mutungamiriri wechikwata, Jessica Agarwal, kubva kuMax Planck Institute, yakati: “Takaona uchapupu hwakasimba hwokuti aizi yemvura iri kuderera nemhaka yokuwedzera kupisa kwezuva. Iyi nzira yakafanana neiyo inogadzira muswe wekometi.
Kunzwisisa kwakabva uye kushanduka kwema comets anotenderera bhanhire re asteroid kwakakosha. Zvakawanda zveruzivo zvine chekuita ne inogona kubuda kubva mukutsvagisa munzvimbo iyi. Iyo binary comet saka inosimbiswa se chidimbu chakakosha kuti unzwisise kutanga kweSolar System.
Kuwedzera kwekutarisa kwe288P kunoratidza akati wandei anonakidza mapoinzi. Chekutanga, chiitiko checometary chakaonekwa panguva yekusvika kwayo kuZuva chinoratidza kuti 288P yave iripo sebhinari system kweanenge makore 5,000 chete. Izvi zvinoratidza kuti zvinhu zviviri zvakaparadzana mune imwe nguva ichangobva kuitika, zvichida mugumisiro wekusagadzikana kunokonzerwa nekutenderera kwavo nokukurumidza.
Jessica Agarwal, aive sainzi anotungamira chirongwa ichi, anotsanangura kuti chando chepamusoro pachinhu chiri munharaunda ino yeSolar System haigone kurarama kwenguva yakareba kunze kwekunge yakachengetedzwa neguruva. Izvi zvinoratidza kuti 288P ine a inoshanda geological nhoroondo, zvichisiya mibvunzo yakawanda pamusoro pemhindumupindu nokuvapo kwayo.
Kufanana pakati pe288P nemamwe maasteroids anoratidza chiitiko che cometary zvinoshamisa. Nhasi, kune boka riri kukura remitumbi yemudenga rinozivikanwa se anoshanda asteroids. Aya maasteroid, ari mubhandi reasteroid, anoratidza maitiro anoyeuchidza macomet, kukanda huruva uye gasi muchadenga. Inofungidzirwa kunge ingangoita makumi maviri eaya anozivikanwa anoshanda asteroids, asi 20P inozivikanwa nekuve iyo yega inoumbwa nezvidimbu zviviri zvakabatanidzwa neyakajairwa nzvimbo yegiravhiti, pane imwechete asteroid muviri.
Kurongeka uye maitiro e288P
Kuvepo kwe288P sebhanari asteroid ine cometary maitiro kwaunza kufarira kukuru pakati pemasayendisiti. Chiitiko chinocherechedzwa pa288P chinowedzera pese parinosvika kuZuva, zvichiratidza kuti kuderedzwa kwemagasi echando ndiko kunoita kuti chiitiko ichi. Izvi zvinoratidzwa mumuswe wayo, uyo, sezvataurwa pamusoro apa, unogadzirwa nekuwedzera kwekushisa kwezuva.
Ichi chiitiko chakakosha kuti unzwisise kuti comets uye asteroids inoumbwa sei.. Icho chokwadi chekuti 288P ibhinari system inopawo mukana wekudzidza huwandu hwayo uye kuumbwa kwayo zvakadzama, izvo zvinogona kubatsira vanoongorora nyeredzi kunzwisisa kuumbwa kwemimwe miviri muSolar System.
Kuumbwa kwe288P kungangoitika mushure mekunge chinhu chihombe chatsemuka, ndokugadzira zvidimbu zviviri zvakatanga kutenderera. Aya macherechedzo anoenderana neanoretical modhi anofanotaura kuti asteroids inogona kutsemuka nekuda kwekuderera kwesimba rinokwevera pamusoro pechiso chavo, mhedzisiro yekutenderera nekukurumidza.
Panyaya yenhoroondo yayo, 288P inomutsa mibvunzo nezve nguva yenguva yekuita cometary mubhandi reasteroid. Kunyange zvazvo basa rayo rakaonekwa munguva pfupi yapfuura, nhoroondo yaro geological inogona kupa zviratidzo zvekuti zvinhu izvi zvingave zvakakanganisa sei kuumbwa kwePasi nemamwe mapuraneti.
Asteroids se288P yakakosha kwete chete kuti inzwisise zviri nani nhoroondo yeSolar System, asi zvakare nekuti inogona kubata ruzivo nezve kuumbwa kwemakungwa ePasi uye hupenyu pachahwo. Zvave zvichitaurwa kuti kukanganisa kubva mumvura- uye organic-rich asteroids kwakabatsira kugadzira mamiriro anodiwa ehupenyu papasi redu.
Icho chokwadi chekuti miviri yakaita se288P inoratidza hunhu hweese ari maviri asteroids uye comets zvakare inosimbisa kukosha kwekugara tichiongorora kupatsanurwa kwedu kwezvinhu zvekudenga, sezvo ruzivo nekutarisa zvinofambira mberi nekukurumidza.
