Abaphandi abavela kuphando lweSloan Digital Sky baxele ngeenkcukacha ezithe vetshe malunga nokugoba kwegalaksi yethu yasekhaya.
Ngokwesiqhelo, umntu ucinga ngee-spiral galaxies njenge-flat disc ejikeleza embindini wayo kodwa malunga ne-60-70% yee-spiral galaxies kuquka ne-galaxy yethu yasekhaya iMilky Way zine-discs ezine-warp okanye twist encinci.
Akukho nto ingako yaziwayo malunga nokugoba okanye ukujika kwegalaksi yethu yasekhaya ngenxa yendawo yenkqubo yelanga ngaphakathi kwiMilky Way.
Abaphandi beSloan Digital Sky Survey (SDSS), iqela lemibutho emininzi yophando ezinikele ekudalweni kweemaphu ezinemilinganiselo emithathu zeNdalo iphela , emva kokufunda ngononophelo iindawo kunye neentshukumo zeenkwenkwezi kulo lonke iMilky Way, baye bafumanisa ukuba idiski yeMilky Way igobile kwaye i-wrap ihambahamba ijikeleza i- galaxy kanye emva kweminyaka engama-440 yezigidi.
Uhlalutyo lubonise ukuba ukujika okanye ukugoba kubangelwa kukugoba okanye amaza ahamba kwiMilky Way okubangela ukuba iinkwenkwezi nganye nganye zihambe phezulu nasezantsi. Ukujika okanye ukugoba kuqhubeka nokugoba okuhamba ngegravity okubangelwa kakhulu kukusebenzisana negalaxy yesathelayithi malunga neminyaka eyi-3 yeebhiliyoni eyadlulayo.
Okubangel’ umdla kukuba, kulindeleke ukuba igalaksi yethu yasekhaya iMilky Way ingqubane negalaksi iAndromeda kwiminyaka emalunga ne-4 yeebhiliyoni ukususela ngoku xa zombini ezi galaksi ziya kudibana.
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Imithombo:
Uphando lweSloan Digital Sky ngo-2021. Isaziso seendaba – I-Milky Way yenza iWave. Ipapashwe nge-15 kaJanuwari 2021. Ifumaneka kwi-intanethi apha https://www.sdss.org/press-releases/the-milky-way-does-the-wave/
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