Zvaigžņu spektroskopija kopās NGC1545 un Tr2

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Zvaigžņu spektroskopija kopās NGC1545 un Tr2

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Šī darba mērķis ir Galaktikas zvaigžņu kopu NGC1545 un Tr2 ķīmiskā sastāva noteikšana un fundamentālo parametru precizēšana un zvaigžņu evolūcijas un konvekcijas teoriju pārbaude. Šis ir oriģināls pētījums, kur izvēlētajām kopas NGC1545 un Tr2 zvaigznēm tika veikta augstas izšķirtspējas spektroskopija. Pētījuma daļā izvērtēta izvēlēto zvaigžņu – potenciālo kopas locekļu piederība kopām NGC1545 un Tr2. Darba gaitā tika iegūts zvaigžņu radiālais ātrums, izmantojot Doplera metodi, efektīvā temperatūra, mikroturbulences ātrums, brīvās krišanas paātrinājuma un ķīmiskā sastāva koncentrāciju vērtības, izmantojot atmosfēras modeļu metodi, kā arī precizēts kopas NGC1545 vecums, zvaigžņu masa un noteikta zvaigzņu evolūcijas stadija, izmantojot zvaigžņu evolūcijas teorijas modeļaprēķinus.

year	journal	country	edition	language
2010-01-01

https://dspace.lu.lv/dspace/handle/7/6902

PEPhysical Sciences and Engineering
- PE2Fundamental Constituents of Matter
  - PE2_1Theory of fundamental interactions
  - PE2_2 Phenomenology of fundamental interactions
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  - PE2_6Nuclear, hadron and heavy ion physics
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  - PE2_16Non-linear physics
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