Astrophysics / Astro-Ph.GA

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Powerful relativistic jets in spiral galaxies

Powerful relativistic jets in spiral galaxies

: ์ด ๋…ผ๋ฌธ์€ ์ฒœ์ฒด๋ฌผ๋ฆฌํ•™์—์„œ ์ƒ๋Œ€๋ก ์  ์ œํŠธ์— ๋Œ€ํ•œ ์ดํ•ด๋ฅผ ์‹ฌํ™”์‹œํ‚ค๋Š” ์ค‘์š”ํ•œ ์—ฐ๊ตฌ์ž…๋‹ˆ๋‹ค. ํŠนํžˆ, ๋‚˜์„  ์€ํ•˜์—์„œ๋„ ๊ฐ•๋ ฅํ•œ ์ƒ๋Œ€๋ก ์  ์ œํŠธ๊ฐ€ ๊ด€์ฐฐ๋  ์ˆ˜ ์žˆ๋‹ค๋Š” ์‚ฌ์‹ค์„ ํ™•์ธํ•จ์œผ๋กœ์จ ๊ธฐ์กด์˜ ์ธ์‹์„ ํ™•์žฅํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. 1. ์ƒ๋Œ€๋ก ์  ์ œํŠธ์˜ ์ผ๋ฐ˜์ ์ธ ํŠน์„ฑ ์ƒ๋Œ€๋ก ์  ์ œํŠธ๋Š” ํ™œ๋™์€ํ•˜ํ•ต(AGN), ๊ฐ๋งˆ์„  ํญ๋ฐœ(GRB), ๊ทธ๋ฆฌ๊ณ  ์€ํ•˜ ์Œ์„ฑ๊ณ„์—์„œ ๊ด€์ฐฐ๋ฉ๋‹ˆ๋‹ค. ์ด๋“ค ์ œํŠธ๋Š” ๋น›์˜ ์†๋„์— ๊ทผ์ ‘ํ•œ ์†๋„๋กœ ๋ฌผ์งˆ์„ ๋ฐฉ์ถœํ•˜๋ฉฐ, ์ด๋Ÿฌํ•œ ํŠน์„ฑ์ด ์ƒ๋Œ€๋ก ์  ํšจ๊ณผ๋ฅผ ์ดˆ๋ž˜ํ•ฉ๋‹ˆ๋‹ค. ์ดˆ๊ธฐ์—๋Š” ํƒ€์›ํ˜• ์€๊ฐ€์—์„œ๋งŒ ์ƒ๋Œ€๋ก ์  ์ œํŠธ๊ฐ€ ๊ด€์ฐฐ๋˜์—ˆ์œผ๋‚˜, ๋‚˜์„  ์€ํ•˜์—์„œ๋„ ๋ฐœ๊ฒฌ๋˜์–ด ์ด๋“ค ์ฒœ์ฒด์˜ ๋‚ด๋ถ€

Astrophysics
A Non-Equilibrium Ionization Model of the Local and Loop I Bubbles - Tracing the Ovi Distribution

A Non-Equilibrium Ionization Model of the Local and Loop I Bubbles - Tracing the Ovi Distribution

: ๋ณธ ๋…ผ๋ฌธ์€ ํ˜„์ง€ ๊ฑฐํ’ˆ(Local Bubble)๊ณผ Loop I ๊ฑฐํ’ˆ์˜ ๋น„ํ‰ํ˜• ์ด์˜จํ™” ๊ตฌ์กฐ์— ๋Œ€ํ•œ ์‹ฌ์ธต์ ์ธ ๋ถ„์„์„ ์ œ๊ณตํ•˜๋ฉฐ, ํŠนํžˆ OVI(Oxygen VI) ํก์ˆ˜ ๊ธฐ์กฐ ๋ฐ€๋„์™€ ๊ด€๋ จ๋œ ๊ด€์ธก ๋ฐ์ดํ„ฐ๋ฅผ ์žฌํ˜„ํ•˜๋Š” ๋ฐ ์ดˆ์ ์„ ๋งž์ถ”๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ์—ฐ๊ตฌ๋Š” ๊ณ ํ•ด์ƒ๋„ 3์ฐจ์› ์œ ์ฒด์—ญํ•™ ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ํ†ตํ•ด ์ด์˜จํ™” ๊ตฌ์กฐ์˜ ์ง„ํ™”๋ฅผ ์ถ”์ ํ•˜๊ณ , ์ด๋ฅผ ์‹ค์ œ ๊ด€์ธก ๊ฒฐ๊ณผ์™€ ๋น„๊ตํ•˜์—ฌ LB ๋ฐ Loop I ๊ฑฐํ’ˆ์˜ ๋ฌผ๋ฆฌ์  ํŠน์„ฑ์„ ์ดํ•ดํ•˜๋Š”๋ฐ ์ค‘์ ์„ ๋‘์—ˆ์Šต๋‹ˆ๋‹ค. ์„œ๋ก : ํ˜„์ง€ ๊ฑฐํ’ˆ์€ ํƒœ์–‘๊ณ„ ์ฃผ๋ณ€์— ์œ„์น˜ํ•œ X์„  ๋ฐฉ์ถœ ์ง€์—ญ์œผ๋กœ, ๊ทธ ํฌ๊ธฐ์™€ ์„ฑ์งˆ์ด ์—ฌ์ „ํžˆ ์™„๋ฒฝํ•˜๊ฒŒ ์ดํ•ด๋˜์ง€ ์•Š์€ ์ƒํƒœ

Model Astrophysics
E(A+M)PEC - An OpenCL Atomic & Molecular Plasma Emission Code For Interstellar Medium Simulations

E(A+M)PEC - An OpenCL Atomic & Molecular Plasma Emission Code For Interstellar Medium Simulations

: E(A+M)PEC ์ฝ”๋“œ๋Š” ISM์˜ ์—ด์  ์ง„ํ™”์™€ ์—ญํ•™์  ์ง„ํ™”๋ฅผ ์ผ๊ด€์„ฑ ์žˆ๊ฒŒ ๋ชจ๋ธ๋งํ•˜๊ธฐ ์œ„ํ•œ ์ค‘์š”ํ•œ ๋„๊ตฌ๋กœ, ์ด์˜จํ™” ๋ฐ ์žฌ๊ฒฐํ•ฉ ๊ณผ์ •์„ ํฌํ•จํ•˜์—ฌ ๋‹ค์–‘ํ•œ ๋ฌผ๋ฆฌ์  ํ˜„์ƒ์„ ๊ณ ๋ คํ•ฉ๋‹ˆ๋‹ค. ํŠนํžˆ, ์ž์—ฐ์—์„œ ๊ฐ€์žฅ ํ’๋ถ€ํ•œ 10๊ฐ€์ง€ ์›์†Œ์— ๋Œ€ํ•œ ๋ฐ์ดํ„ฐ๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ํ•˜๋ฉฐ, ์ตœ์‹  ํƒœ์–‘ ์›์†Œ์™€ ์›์ž ๋ฐ ๋ถ„์ž ๋ฐ์ดํ„ฐ๋ฅผ ํ™œ์šฉํ•จ์œผ๋กœ์จ ์ •ํ™•๋„๋ฅผ ๋†’์˜€์Šต๋‹ˆ๋‹ค. ์ด ์ฝ”๋“œ๋Š” ISM์˜ ์—ด์  ์ง„ํ™” ๊ณผ์ •์—์„œ ์ค‘์š”ํ•œ ์—ญํ• ์„ ํ•˜๋Š” ์—ฌ๋Ÿฌ ๋ฌผ๋ฆฌ์  ํ˜„์ƒ์„ ํฌํ•จํ•ฉ๋‹ˆ๋‹ค. ์ด ์ค‘ ์ „์ž ์ถฉ๊ฒฉ ์ด์˜จํ™”, ํฅ๋ถ„ ์ž๋™ ์ด์˜จํ™”, ๋ณต์‚ฌ ๋ฐ ๋‹ค์ด์ผ๋ ‰ํŠธ๋ก  ์žฌ๊ฒฐํ•ฉ, ์ „ํ•˜ ๊ตํ™˜ ๋ฐ˜์‘ ๋“ฑ์€ ISM์˜ ์—ด์  ์ƒํƒœ๋ฅผ

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