Difference between revisions of "Brian Welch"

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{{Infobox Person
| name        = Brian Welch
| image      =
| alt        =
| caption    =
| birth_date  = 1995 <!-- {{Birth year and age|YYYY}} -->
| birth_place =
| death_date  = <!-- {{Death date and age|YYYY|MM|DD|YYYY|MM|DD}} (death date then birth date) -->
| death_place =
| nationality =
| other_names =
| known_for  = led the team that announced the most ancient and most distant star
| occupation  = [[astronomer]]
}}
'''Brian Welch''' is a [[PhD]] student, studying [[Astronomy]], at [[John Hopkins University]].<ref name=washingtonpost2022-03-30/>  His thesis supervisor, [[Dan Coe]], discovered a very distant galaxy, called [[The Sunrise Arc]], in 2016.  That Galaxy was only found because the gravity of a supercluster of galaxies that lie between us and The Sunrise Arc magnified its light, through [[Gravitational lens]]ing.
'''Brian Welch''' is a [[PhD]] student, studying [[Astronomy]], at [[John Hopkins University]].<ref name=washingtonpost2022-03-30/>  His thesis supervisor, [[Dan Coe]], discovered a very distant galaxy, called [[The Sunrise Arc]], in 2016.  That Galaxy was only found because the gravity of a supercluster of galaxies that lie between us and The Sunrise Arc magnified its light, through [[Gravitational lens]]ing.


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In June, 2021, Welch published an article in the ''[[Bulletin of the American Astronomical Society]]'', announcing the observation of several small, dense [[globular cluster]]s, within the galaxy.<ref name=BulletinAmericanAstronomicalSociety-2021-06/>
In June, 2021, Welch published an article in the ''[[Bulletin of the American Astronomical Society]]'', announcing the observation of several small, dense [[globular cluster]]s, within the galaxy.<ref name=BulletinAmericanAstronomicalSociety-2021-06/>


Meanwhile Welch had found, in 2018, an object now known as [[Earendil]].<ref name=washingtonpost2022-03-30/>  Welch co-ordinated an international team of Astronomers, who confirmed that Earendil seemed to be a very distant early star.  Welch was the lead author of a paper in the prestigious Science journal ''[[Nature (journal)|Nature]]'', announcing the discovery, on March 30, 2022.<ref name=Nature2022-03-30/>
Meanwhile Welch had found, in 2018, an object now known as [[Earendel]].<ref name=washingtonpost2022-03-30/>  Welch co-ordinated an international team of Astronomers, who confirmed that Earendel seemed to be a very distant early star.  Welch was the lead author of a paper in the prestigious Science journal ''[[Nature (journal)|Nature]]'', announcing the discovery, on March 30, 2022.<ref name=Nature2022-03-30/>


==References==
==References==
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| accessdate  = 2022-03-30
| accessdate  = 2022-03-30
| url-status  = live       
| url-status  = live       
| quote      =  
| quote      = I will present RELICS observations of the highly magnified Sunrise Arc, a 15" long lensed arc observed at z = 6.2.
}}
}}
[https://web.archive.org/web/20220331035143/https://ui.adsabs.harvard.edu/abs/2021AAS...23832409W/abstract mirror]
[https://web.archive.org/web/20220331035143/https://ui.adsabs.harvard.edu/abs/2021AAS...23832409W/abstract mirror]
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| title      = A highly magnified star at redshift 6.2  
| title      = A highly magnified star at redshift 6.2  
| journal    = [[Nature (journal)|Nature]]  
| journal    = [[Nature (journal)|Nature]]  
| author      = Welch, Brian, et al.  
| author      = Brian Welch, et al.  
| date        = 2022-03-30  
| date        = 2022-03-30  
| volume      = 603  
| volume      = 603  

Revision as of 11:05, 31 March 2022

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Brian Welch
Born 1995
Occupation astronomer
Known for led the team that announced the most ancient and most distant star

Brian Welch is a PhD student, studying Astronomy, at John Hopkins University.[1] His thesis supervisor, Dan Coe, discovered a very distant galaxy, called The Sunrise Arc, in 2016. That Galaxy was only found because the gravity of a supercluster of galaxies that lie between us and The Sunrise Arc magnified its light, through Gravitational lensing.

Coe assigned Welch the task of examining promising objects within The Sunrise Arc.[1]

In June, 2021, Welch published an article in the Bulletin of the American Astronomical Society, announcing the observation of several small, dense globular clusters, within the galaxy.[2]

Meanwhile Welch had found, in 2018, an object now known as Earendel.[1] Welch co-ordinated an international team of Astronomers, who confirmed that Earendel seemed to be a very distant early star. Welch was the lead author of a paper in the prestigious Science journal Nature, announcing the discovery, on March 30, 2022.[3]

References

  1. 1.0 1.1 1.2 Joel Achenbach. Hubble telescope detects most distant star ever seen, near cosmic dawn, Washington Post, 2022-03-30. Retrieved on 2022-03-30. “Earendel is part of an early, small galaxy whose light has been magnified and distorted in two curved strips as a result of such lensing. Astronomer Dan Coe of Johns Hopkins discovered and named the Sunrise Arc in 2016 as part of a Hubble observation program. Welch, Coe’s student, scrutinized a tiny speck — some kind of object — providentially located on the arc where the magnification was highest. Over the course of 3½ years, the object remained in that spot.”
  2. B. Welch. Relics: Parsec-Scale Star Clusters In The First Billion Years, Bulletin of the American Astronomical Society. Retrieved on 2022-03-30. “I will present RELICS observations of the highly magnified Sunrise Arc, a 15" long lensed arc observed at z = 6.2.” mirror
  3. Brian Welch, et al. (2022-03-30). "A highly magnified star at redshift 6.2". Nature 603: 815-818. DOI:10.1038/s41586-022-04449-y. Retrieved on 2022-03-30. Research Blogging.