Kufotokozera kwa Andromeda Galaxy
Mlalang'amba wa Andromeda, womwe umadziwikanso kuti M31, ndi mlalang'amba waukulu kwambiri wozungulira m'mlang'amba wathu wapafupi komanso mlalang'amba waukulu wapafupi kwambiri ndi Milky Way. Ili pamtunda wa zaka pafupifupi 2,537 miliyoni kuchokera ku Dziko Lapansi, Andromeda imapereka chithunzithunzi chodabwitsa cha chilengedwe chonse, kupatsa akatswiri a zakuthambo chidziwitso chochuluka cha chilengedwe chonse.
Chiyambi cha Dzinalo
Dzina lakuti "Andromeda" limachokera ku nthano zachi Greek, ponena za mwana wamkazi wa Cassiopeia ndi Cepheus. Dzinali linasankhidwa chifukwa chakuti mlalang'amba uli m'dera la mlengalenga lotchedwa gulu la nyenyezi la Andromeda. Kale, anthu akatchula za Andromeda, ankatanthauza mfumukazi ya nthano. Komabe, chifukwa cha kupita patsogolo kwa sayansi ya zakuthambo, Andromeda tsopano imadziwika bwino ngati mlalang'amba waukulu komanso wofunika kunja kwa Milky Way.
Kapangidwe ndi Makhalidwe
Gulu la Andromeda ndi gulu lalikulu lozungulira lofanana ndi la Milky Way, koma lalikulupo. Lili ndi mainchesi pafupifupi 220,000 a kuwala , poyerekeza ndi mainchesi pafupifupi 100,000 a kuwala kwa Milky Way. Gulu la Andromeda likuyerekezeredwa kuti lili ndi nyenyezi 1 trilioni, kuwirikiza kawiri chiwerengero cha nyenyezi mu Milky Way, zomwe zikuyerekezeredwa kuti ndi pafupifupi 200 biliyoni mpaka 400 biliyoni.
Kapangidwe ka mlalang'amba uwu kamakhala ndi pakati pa mlalang'amba wokhuthala, manja ozungulira, ndi halo ya nyenyezi ndi zinthu zakuda . Pakati pa mlalang'amba wa Andromeda pali nyenyezi zakale zambiri, ndipo pakati pake pali dzenje lakuda lalikulu kwambiri lofanana ndi lomwe lili pakati pa Milky Way. Manja ozungulira a Andromeda ali ndi nyenyezi zambiri zazing'ono ndi madera opanga nyenyezi.
Mlalang'amba wa Andromeda, pamodzi ndi mlalang'amba wathu, ndi gawo la Local Cluster of Galaxies, lomwe lili ndi milalang'amba pafupifupi 54 kuphatikizapo milalang'amba ina yaying'ono yomwe imazungulira Andromeda ndi Milky Way.
Kuyenda ndi Kugwirizana ndi Milky Way
Chimodzi mwa zinthu zosangalatsa kwambiri za mlalang'amba wa Andromeda ndi kuyenda kwake poyerekeza ndi Milky Way. Andromeda ikuyandikira mlalang'amba wathu pa liwiro la makilomita 110 pa sekondi (km/s). Izi zikutanthauza kuti tsiku lina, patatha zaka pafupifupi 4,5 biliyoni, Andromeda ndi Milky Way zidzagundana ndikuphatikizana kukhala mlalang'amba umodzi waukulu.
Kuyerekezera kwa makompyuta kumasonyeza kuti kugundana kumeneku sikudzawononga nyenyezi nthawi yomweyo, koma kudzasintha mawonekedwe a milalang'amba yonse iwiri ndi mitambo yawo ya mpweya ndi fumbi, zomwe zimapangitsa kuti nyenyezi zatsopano zipangidwe. Milalang'amba iwiriyi ikaphatikizana, ikuyembekezeka kupanga mlalang'amba waukulu wa elliptical womwe asayansi ena adautcha dzina loti "Milkomeda" kapena "Milkdromeda."
Mbiri ya Kuyang'anitsitsa
Mlalang'amba wa Andromeda wakhala ukudziwika kuyambira nthawi zakale ndipo unafotokozedwa koyamba ndi katswiri wa zakuthambo wa ku Persia Abd al-Rahman al-Sufi m'zaka za m'ma 10 m'buku lake lakuti "Kitab al-Kawākib al-Thābitah" (Buku la Nyenyezi Zokhazikika). Al-Sufi anatchula mlalang'ambawu kuti "mtambo waung'ono."
Ngakhale kuti mlalang'amba uwu unkadziwika kwa nthawi yaitali, unkadziwika ngati gulu la nyenyezi payokha m'zaka za m'ma 20. Kale, Andromeda inkaganiziridwa kuti ndi nebula mkati mwa mlalang'amba wathu. Anali Edwin Hubble, katswiri wa zakuthambo waku America, amene anatsimikiza kuti Andromeda kwenikweni inali mlalang'amba wodabwitsa m'zaka za m'ma 1920. Hubble, pogwiritsa ntchito telescope ya mainchesi 100 ya Hooker ku Mount Wilson Observatory, adapeza kuti panali zinthu zingapo za Cepheid mkati mwa mlalang'amba wa Andromeda. Powerengera mtunda wa zinthu za Cepheid izi, Hubble anasonyeza kuti Andromeda ili kutali kwambiri ndi Milky Way, motero kutsimikizira kuti Andromeda ndi mlalang'amba wokha.
Kufunika kwa Kafukufuku pa Andromeda
Kuphunzira za Andromeda kumapatsa akatswiri a zakuthambo chitsanzo chomvetsetsa milalang'amba ina yozungulira. Kuphunzira mayendedwe a nyenyezi ndi kufalikira kwa zinthu mkati mwa Andromeda kumatithandiza kumvetsetsa momwe milalang'amba yozungulira imagwirira ntchito.
Kuphatikiza apo, kumvetsetsa momwe Andromeda ndi Milky Way zidzagwirizanirana mtsogolo kumatithandiza kuzindikira tsogolo la milalang'amba yozungulira ngati yathu. Kuwona kwa ultraviolet ndi infrared kwa Andromeda kwatithandizanso kumvetsetsa kapangidwe ka nyenyezi ndi kusintha kwa nyenyezi m'milalang'amba yozungulira.
Kuwona mwatsatanetsatane kwa mlalang'amba wa Andromeda kumaperekanso chidziwitso chowonjezera pa nkhani yakuda. Kufalikira kwa nkhani yakuda mu Andromeda kungayerekezeredwe ndi kwa Milky Way kuti apange zitsanzo zolondola kwambiri za momwe nkhani yakuda imagwirira ntchito pamlingo wa mlalang'amba.
Andromeda mu Kafukufuku Wamakono
Masiku ano, Andromeda ikupitilirabe kukhala cholinga chachikulu chowonera pogwiritsa ntchito ukadaulo wapamwamba wosiyanasiyana, kuphatikiza ma telescope amlengalenga monga Hubble Space Telescope ndi ma telescope okhala pansi. Kafukufuku wozama akupitilira kuti amvetsetse bwino kapangidwe, kayendedwe, ndi kusintha kwa gulu la nyenyezi ili.
Chimodzi mwa zinthu zazikulu zomwe Andromeda ikufuna kuchita ndi kufufuza mapu a halo ya mlalang'ambawu komanso kumvetsetsa zochitika zakale zokhudzana ndi kudya anthu, komwe milalang'amba ikuluikulu monga Andromeda imaganiziridwa kuti idadya milalang'amba yaying'ono. Izi zimatithandiza kumvetsetsa momwe milalang'amba ikuluikulu yozungulira monga Andromeda ndi Milky Way imakulirakulira.
Mapeto
Mlalang'amba wa Andromeda ndiye mlalang'amba waukulu komanso wapafupi kwambiri ndi Mlalang'amba wa Milky Way, womwe umapatsa akatswiri a zakuthambo maphunziro ofunikira okhudza kapangidwe kake, kusintha, ndi tsogolo la milalang'amba. Ndi kukula kwakukulu kwambiri komanso kuchuluka kwa nyenyezi kawiri kuposa Mlalang'amba wa Milky Way, Andromeda imapereka chidziwitso chofunikira cha momwe milalang'amba ikuluikulu imagwirira ntchito komanso kusintha.
Kuphunzira mozama za Andromeda kudzapitiriza kutsegula zitseko kuti timvetse bwino za chilengedwe chonse , kuyambira kuyenda kwa nyenyezi mpaka kuyanjana kwa zinthu zakuda. Andromeda ndi Milky Way zikuyandikirana osati patali kokha, komanso pakumvetsetsa kwathu kwa chilengedwe chachikulu. Izi zimapangitsa Andromeda kukhala chimodzi mwa zinthu zosangalatsa komanso zofunika kwambiri mu zakuthambo.
