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MACS J1149 Lensed Star 1

From Simple English Wikipedia, the free encyclopedia

MACS J1149 Lensed Star 1, also known as Icarus, is a blue supergiant star observed through a gravitational lens that might be 193.4 times the radius of the Sun. It is the second most distant individual star to have been detected so far (second only to WHL0137-LS, also known as Earendel, as of March 2022), at about 14 billion light-years from Earth (redshift z=1.49; comoving distance of 14.4 billion light-years; Cosmic time of 9.34 billion years).[1][2][3][4][5][6][7] Light from the star was emitted 4.4 billion years after the Big Bang.[8] According to co-discoverer Patrick Kelly, the star is at least a hundred times more distant than the next-farthest non-supernova star observed, SDSS J1229+1122, and is the first magnified individual star seen.[9][10]

Detection of MACS J1149 Lensed Star 1 A galactic cluster (left) magnified a distant star (now named Icarus) more than 2,000 times, making it visible in 2016 from Earth (lower right), 9.34 billion light-years away—although visible in 2016, the star was not visible in 2011 (upper right).

References

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  1. ↑ "redshift z=1.49 - Wolfram|Alpha". www.wolframalpha.com. Retrieved 2022-11-08.
  2. ↑ Kelly, Patrick L.; Diego, Jose M.; Rodney, Steven; Kaiser, Nick; Broadhurst, Tom; Zitrin, Adi; Treu, Tommaso; Perez-Gonzalez, Pablo G.; Morishita, Takahiro; Jauzac, Mathilde; Selsing, Jonatan (2018-04-01). "Extreme magnification of a star at redshift 1.5 by a galaxy-cluster lens". arXiv:1706.10279. {{cite journal}}: Cite journal requires |journal= (help)
  3. ↑ Hille, Karl (2018-04-02). "Hubble Uncovers the Farthest Star Ever Seen". NASA. Retrieved 2022-11-08.
  4. ↑ Elizabeth Howell (2018-04-02). "Rare Cosmic Alignment Reveals Most Distant Star Ever Seen". Space.com. Retrieved 2022-11-08.
  5. ↑ S, Robert; ers; relations|, Media (2018-04-02). "Hubble peers through cosmic lens to capture most distant star ever seen". Berkeley News. Retrieved 2022-11-08.
  6. ↑ Monday, Jake Parks | Published; April 2; 2018. "Hubble images farthest star ever seen". Astronomy.com. Retrieved 2022-11-08. {{cite web}}: |last3= has numeric name (help)CS1 maint: numeric names: authors list (link)
  7. ↑ "Most distant star ever detected sits halfway across the universe". Reuters. 2018-04-02. Retrieved 2022-11-08.
  8. ↑ Monday, Jake Parks | Published; April 2; 2018. "Hubble images farthest star ever seen". Astronomy.com. Retrieved 2022-11-08. {{cite web}}: |last3= has numeric name (help)CS1 maint: numeric names: authors list (link)
  9. ↑ Hille, Karl (2018-04-02). "Hubble Uncovers the Farthest Star Ever Seen". NASA. Retrieved 2022-11-08.
  10. ↑ Monday, Jake Parks | Published; April 2; 2018. "Hubble images farthest star ever seen". Astronomy.com. Retrieved 2022-11-08. {{cite web}}: |last3= has numeric name (help)CS1 maint: numeric names: authors list (link)
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