๐Ÿš€ ๅฎ‡ๅฎ™ใฎ่จ˜ๆ†ถใƒปใ‚ซใƒฌใƒณใƒ€ใƒผๆคœ็ดข
ใใ‚‡ใ† ใƒฉใƒณใƒ€ใƒ 
WISPIT 2b๏ผš็ณปๅค–ๆƒ‘ๆ˜ŸใŒ่ช•็”Ÿๅ††็›คใซ้š™้–“ใ‚’ไฝœใ‚‹ WISPIT 2b: Exoplanet Carves Gap in Birth Disk
โœ… Public Domain
ใ‚ใฎ้ป„่‰ฒใ„็‚นใฏไฝ•ใงใ—ใ‚‡ใ†๏ผŸใใ‚Œใฏๅคช้™ฝ็ณปๅค–ใซใ‚ใ‚‹่‹ฅใ„ๆƒ‘ๆ˜Ÿใงใ™ใ€‚ใƒใƒชใซใ‚ใ‚‹่ถ…ๅคงๅž‹ๆœ›้ ้ก๏ผˆVLT๏ผ‰ใŒๆ’ฎๅฝฑใ—ใŸใ“ใฎ็”ปๅƒใฏใ€็ด„45ๅ„„ๅนดๅ‰ใฎๅคช้™ฝ็ณป่ช•็”Ÿใซใ‚ˆใไผผใŸ้ ใ„ๅ…‰ๆ™ฏใ‚’ๆ‰ใˆใฆใ„ใพใ™ใ€‚็งใŸใกใฏ้ŽๅŽปใ‚’้กใฃใฆๅœฐ็ƒใฎๅฝขๆˆใ‚’็›ดๆŽฅ่ฆ‹ใ‚‹ใ“ใจใฏใงใใพใ›ใ‚“ใŒใ€ๆœ›้ ้กใ‚’ไฝฟใˆใฐใ€้ ใ้›ขใ‚ŒใŸๆ’ๆ˜Ÿใฎๅ‘จใ‚Šใง่ตทใ“ใ‚‹ๅŒๆง˜ใฎใƒ—ใƒญใ‚ปใ‚นใ‚’่ฆณๅฏŸใ™ใ‚‹ใ“ใจใŒใงใใพใ™ใ€‚ใ“ใฎ็”ปๅƒใฎไธญๅฟƒใซใฏใ€ๆ˜Žใ‚‹ใ„ๅ…‰ใ‚’้ฎใ‚‹ใ‚ณใƒญใƒŠใ‚ฐใƒฉใƒ•ใฎๅพŒใ‚ใซ้š ใ‚ŒใŸใ€่‹ฅใ„ๅคช้™ฝใฎใ‚ˆใ†ใชๆ’ๆ˜ŸใŒใ‚ใ‚Šใพใ™ใ€‚ๆ’ๆ˜Ÿใฎๅ‘จๅ›ฒใซใฏใ€ๆ˜Žใ‚‹ใๅกตใซ่ฆ†ใ‚ใ‚ŒใŸๅŽŸๅง‹ๆƒ‘ๆ˜Ÿ็ณปๅ††็›คใ€ใคใพใ‚Šๆƒ‘ๆ˜ŸใฎๅŽŸๆๆ–™ใŒๅบƒใŒใฃใฆใ„ใพใ™ใ€‚้š™้–“ใ‚„ๅŒๅฟƒๅ††็Šถใฎ็’ฐใฏใ€็”Ÿใพใ‚ŒใŸใฐใ‹ใ‚Šใฎๆƒ‘ๆ˜ŸใŒ้‡ๅŠ›ใซใ‚ˆใฃใฆใ‚ฌใ‚นใ‚„ๅกตใ‚’้›†ใ‚ใ€ๆ’ๆ˜Ÿใฎๅ‘จใ‚Šใ‚’ๅ…ฌ่ปขใ—ใชใŒใ‚‰้“ใ‚’ๅˆ‡ใ‚Š้–‹ใ„ใฆใ„ใ‚‹ๅ ดๆ‰€ใ‚’็คบใ—ใฆใ„ใพใ™ใ€‚ๅคฉๆ–‡ๅญฆ่€…ใฏใ“ใ‚Œใพใงใซใ‚‚ๅ††็›คใซๅŸ‹ใ‚่พผใพใ‚ŒใŸๆƒ‘ๆ˜Ÿใ‚’ๆ’ฎๅฝฑใ—ใฆใใพใ—ใŸใŒใ€ใ“ใ‚Œใฏ็ณปๅค–ๆƒ‘ๆ˜ŸใŒๅ††็›คๅ†…ใซ็ฉๆฅต็š„ใซ้š™้–“ใ‚’ๅˆปใ‚“ใงใ„ใ‚‹ๆง˜ๅญใ‚’ๅˆใ‚ใฆ็›ดๆŽฅ่ฆณๆธฌใ—ใŸใ‚‚ใฎใงใ‚ใ‚Šใ€ๆƒ‘ๆ˜Ÿๅฝขๆˆใฎ้Ž็จ‹ใ‚’ๆœ€ใ‚‚ๅˆๆœŸๆฎต้šŽใง็›ดๆŽฅๆ‰ใˆใŸใ‚‚ใฎใงใ™ใ€‚
ๅŽŸๆ–‡๏ผˆEnglish๏ผ‰
That yellow spot -- what is it? It's a young planet outside our Solar System. The featured image from the Very Large Telescope in Chile surprisingly captures a distant scene much like our own Solar System's birth, some 4.5 billion years ago. Although we can't look into the past and see Earth's formation directly, telescopes let us watch similar processes unfolding around distant stars. At the center of this frame lies a young Sun-like star, hidden behind a coronagraph that blocks its bright glare. Surrounding the star is a bright, dusty protoplanetary disk -- the raw material of planets. Gaps and concentric rings mark where a newborn world is gathering gas and dust under its gravity, clearing the way as it orbits the star. Although astronomers have imaged disk-embedded planets before, this is the first-ever observation of an exoplanet actively carving a gap within a disk -- the earliest direct glimpse of planetary sculpting in action.

๏ผผ ใ“ใฎๆ„Ÿๅ‹•ใ‚’ๅฎ‡ๅฎ™ไปฒ้–“ใซใ‚ทใ‚งใ‚ข ๏ผ

ๅฎ‡ๅฎ™ใ‚’Xใงใ‚ทใ‚งใ‚ข
ยฉ NASA / APOD