Sunburst galaxy

Sunburst galaxy
	; The bright arcs between 12 and 3 o'clock are the Sunburst Galaxy.; Credit: ESA/Hubble, NASA, Rivera-Thorsen et al.
Other designations
	Sunburst galaxy

The Sunburst galaxy is a strongly magnified galaxy at redshift z=2.38 (10.9 billion light years) behind the galaxy cluster PSZ1 G311.65-18.48.[1] The cluster acts as a power magnifier thanks to the gravitational lensing effect. The galaxy cluster distorts the space around it creating different paths for the photons coming from the Sunburst galaxy, that appears up to 12 times. Some of the images are magnified by very large factors. In one of these strongly magnified images of the Sunburst galaxy, astronomers have identified the most luminous star known to date, Godzilla.[2][3]

References

Rivera-Thorsen, R.; Dahle, H.; Gronke, M.; Bayliss, M.; Rigby, J. R.; Simcoe, R.; Bordoloi, R. (2017). "The Sunburst Arc: Direct Lyman α escape observed in the brightest known lensed galaxy". Astronomy and Astrophysics. 608: L4. arXiv:1710.09482. Bibcode:2017A&A...608L...4R. doi:10.1051/0004-6361/201732173. S2CID 54952450.
Diego, J. M.; Pascale, M.; Kavanagh, B. J.; Kelly, P.; Dai, L.; Frye, B.; Broadhurst, T. (2022). "Godzilla, a monster lurks in the Sunburst galaxy". Astronomy and Astrophysics. 665: A134. arXiv:2203.08158. Bibcode:2022A&A...665A.134D. doi:10.1051/0004-6361/202243605. S2CID 247476158.
"Scientists face down 'Godzilla', the most luminous star known". Nature. 610 (7930): 10. 6 October 2022. Bibcode:2022Natur.610T..10.. doi:10.1038/d41586-022-03054-3. S2CID 252598653.

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[torsten2017-1] Rivera-Thorsen, R.; Dahle, H.; Gronke, M.; Bayliss, M.; Rigby, J. R.; Simcoe, R.; Bordoloi, R. (2017). "The Sunburst Arc: Direct Lyman α escape observed in the brightest known lensed galaxy". Astronomy and Astrophysics. 608: L4. arXiv:1710.09482. Bibcode:2017A&A...608L...4R. doi:10.1051/0004-6361/201732173. S2CID 54952450.

[diego2022-2] Diego, J. M.; Pascale, M.; Kavanagh, B. J.; Kelly, P.; Dai, L.; Frye, B.; Broadhurst, T. (2022). "Godzilla, a monster lurks in the Sunburst galaxy". Astronomy and Astrophysics. 665: A134. arXiv:2203.08158. Bibcode:2022A&A...665A.134D. doi:10.1051/0004-6361/202243605. S2CID 247476158.

[3] "Scientists face down 'Godzilla', the most luminous star known". Nature. 610 (7930): 10. 6 October 2022. Bibcode:2022Natur.610T..10.. doi:10.1038/d41586-022-03054-3. S2CID 252598653.