MACS0647-JD is a galaxy with a redshift of about z = 10.7, equivalent to a light travel distance of 13.26 billion light-years (4 billion parsecs). If the distance estimate is correct, it formed about 427 million years after the Big Bang.[2][3][4][5]
MACS0647-JD is very young and only a tiny fraction of the size of the Milky Way.[6]
Details
JD refers to J-band Dropout – the galaxy was not detected in the so-called J-band (F125W), nor in 14 bluer Hubble filters. It only appeared in the two reddest filters (F140W and F160W).
It is less than 600 light-years wide, and contains roughly a billion stars.
The location of the galaxy is in the constellation Camelopardalis, which is also the location of the gravitational lensing cluster that helped discover this galaxy: MACSJ0647+7015 at z = 0.591.[7]
MACS0647-JD was announced in November 2012, but by the next month UDFj-39546284, which was previously thought to be z = 10.3, was said to be at z = 11.9,[8] although more recent analyses have suggested the latter is likely to be at a lower redshift.[9]
Infrared NIRCam imaging of MACS0647-JD by the James Webb Space Telescope (JWST) in September 2022 determined a photometric redshift of 10.6±0.3, in agreement with the previous Hubble estimate. Additional spectroscopic observations by JWST will be needed to accurately confirm the redshift of MACS0647-JD.[1]
^ abHsiao, Tiger Yu-Yang; et al. (October 2022). "JWST reveals a possible z∼11 galaxy merger in triply-lensed MACS0647 − JD". arXiv:2210.14123 [astro-ph.GA].
^"NASA Great Observatories Find Candidate for Most Distant Galaxy Yet Known". Space Telescope Science Institute. November 15, 2012. Retrieved November 17, 2012.
^ abCoe, Dan; Zitrin, Adi; Carrasco, Mauricio; Shu, Xinwen; Zheng, Wei; Postman, Marc; Bradley, Larry; Koekemoer, Anton; Bouwens, Rychard; Broadhurst, Tom; Monna, Anna; Host, Ole; Moustakas, Leonidas A.; Ford, Holland; Moustakas, John; Van Der Wel, Arjen; Donahue, Megan; Rodney, Steven A.; Benítez, Narciso; Jouvel, Stephanie; Seitz, Stella; Kelson, Daniel D.; Rosati, Piero (2013). "CLASH: Three Strongly Lensed Images of a Candidate z ~ 11 Galaxy". The Astrophysical Journal. 762 (1): 32. arXiv:1211.3663. Bibcode:2013ApJ...762...32C. doi:10.1088/0004-637x/762/1/32. S2CID 119114237.
^ ab"Hubble spots three magnified views of most distant known galaxy". Hubble Space Telescope. November 15, 2012. Retrieved November 17, 2012.
^"Hubble helps find candidate for most distant object in the Universe yet observed". ESA/Hubble Press Release. Retrieved 15 February 2013.
^"NASA Great Observatories Find Candidate for Most Distant Galaxy Yet Known". Space Telescope Science Institute. Fast Facts. November 15, 2012. Retrieved November 17, 2012.
^Universe Today - Hubble Census Unveils Galaxies Shining Near Cosmic Dawn
^Brammer, Gabriel B.; Van Dokkum, Pieter G.; Illingworth, Garth D.; Bouwens, Rychard J.; Labbé, Ivo; Franx, Marijn; Momcheva, Ivelina; Oesch, Pascal A.; Bouwens, Rychard; Broadhurst, Tom; Monna, Anna; Host, Ole; Moustakas, Leonidas A.; Ford, Holland; Moustakas, John; Arjen van der Wel; Donahue, Megan; Rodney, Steven A.; Benitez, Narciso; Jouvel, Stephanie; Seitz, Stella; Kelson, Daniel D.; Rosati, Piero (2013). "A Tentative Detection of an Emission Line at 1.6 mum for the z ~ 12 Candidate UDFj-39546284". The Astrophysical Journal. 765 (1): L2. arXiv:1301.0317. Bibcode:2013ApJ...765L...2B. doi:10.1088/2041-8205/765/1/l2. S2CID 119226564.
External links
Media related to MACS0647-JD at Wikimedia Commons
NASA Great Observatories Find Candidate for Most Distant Object in the Universe to Date
macs0647, galaxy, with, redshift, about, equivalent, light, travel, distance, billion, light, years, billion, parsecs, distance, estimate, correct, formed, about, million, years, after, bang, hubble, space, telescope, image, observation, data, j2000, epoch, co. MACS0647 JD is a galaxy with a redshift of about z 10 7 equivalent to a light travel distance of 13 26 billion light years 4 billion parsecs If the distance estimate is correct it formed about 427 million years after the Big Bang 2 3 4 5 MACS0647 JDHubble Space Telescope image of MACS0647 JDObservation data J2000 epoch ConstellationCamelopardalisRight ascension06h 47m 55 73sDeclination 70 14 35 8 Redshift10 6 0 3 1 Helio radial velocity3 183 796 km sDistance13 300 000 000 ly 4 077798537 109 pc light travel time 32 000 000 000 ly 9 811244601 109 pc comoving distance Group or clusterMACS J0647 7015CharacteristicsTypedwarfMass4 82 10 85 kg M Number of stars1 billion 1 109 Size600 ly diameter Apparent size V 0 00015 x 0 00015Other designationsCZC2013 MACS0647 JD1MACS0647 JD is very young and only a tiny fraction of the size of the Milky Way 6 Details EditJD refers to J band Dropout the galaxy was not detected in the so called J band F125W nor in 14 bluer Hubble filters It only appeared in the two reddest filters F140W and F160W It is less than 600 light years wide and contains roughly a billion stars The galaxy was discovered with the help of Cluster Lensing And Supernova survey with Hubble CLASH which uses massive galaxy clusters as cosmic telescopes to magnify distant galaxies behind them an effect called gravitational lensing Observations were recorded by the Wide Field Camera 3 on the Hubble Space Telescope 4 with support from Spitzer Space Telescope 3 The location of the galaxy is in the constellation Camelopardalis which is also the location of the gravitational lensing cluster that helped discover this galaxy MACSJ0647 7015 at z 0 591 7 MACS0647 JD was announced in November 2012 but by the next month UDFj 39546284 which was previously thought to be z 10 3 was said to be at z 11 9 8 although more recent analyses have suggested the latter is likely to be at a lower redshift 9 Infrared NIRCam imaging of MACS0647 JD by the James Webb Space Telescope JWST in September 2022 determined a photometric redshift of 10 6 0 3 in agreement with the previous Hubble estimate Additional spectroscopic observations by JWST will be needed to accurately confirm the redshift of MACS0647 JD 1 See also EditList of the most distant astronomical objects Farthest galaxiesReferences Edit a b Hsiao Tiger Yu Yang et al October 2022 JWST reveals a possible z 11 galaxy merger in triply lensed MACS0647 JD arXiv 2210 14123 astro ph GA NASA Great Observatories Find Candidate for Most Distant Galaxy Yet Known Space Telescope Science Institute November 15 2012 Retrieved November 17 2012 a b Coe Dan Zitrin Adi Carrasco Mauricio Shu Xinwen Zheng Wei Postman Marc Bradley Larry Koekemoer Anton Bouwens Rychard Broadhurst Tom Monna Anna Host Ole Moustakas Leonidas A Ford Holland Moustakas John Van Der Wel Arjen Donahue Megan Rodney Steven A Benitez Narciso Jouvel Stephanie Seitz Stella Kelson Daniel D Rosati Piero 2013 CLASH Three Strongly Lensed Images of a Candidate z 11 Galaxy The Astrophysical Journal 762 1 32 arXiv 1211 3663 Bibcode 2013ApJ 762 32C doi 10 1088 0004 637x 762 1 32 S2CID 119114237 a b Hubble spots three magnified views of most distant known galaxy Hubble Space Telescope November 15 2012 Retrieved November 17 2012 D Coe Hubble Spies Astrophysical Journal Retrieved 2015 11 02 Hubble helps find candidate for most distant object in the Universe yet observed ESA Hubble Press Release Retrieved 15 February 2013 NASA Great Observatories Find Candidate for Most Distant Galaxy Yet Known Space Telescope Science Institute Fast Facts November 15 2012 Retrieved November 17 2012 Universe Today Hubble Census Unveils Galaxies Shining Near Cosmic Dawn Brammer Gabriel B Van Dokkum Pieter G Illingworth Garth D Bouwens Rychard J Labbe Ivo Franx Marijn Momcheva Ivelina Oesch Pascal A Bouwens Rychard Broadhurst Tom Monna Anna Host Ole Moustakas Leonidas A Ford Holland Moustakas John Arjen van der Wel Donahue Megan Rodney Steven A Benitez Narciso Jouvel Stephanie Seitz Stella Kelson Daniel D Rosati Piero 2013 A Tentative Detection of an Emission Line at 1 6 mum for the z 12 Candidate UDFj 39546284 The Astrophysical Journal 765 1 L2 arXiv 1301 0317 Bibcode 2013ApJ 765L 2B doi 10 1088 2041 8205 765 1 l2 S2CID 119226564 External links Edit Media related to MACS0647 JD at Wikimedia Commons NASA Great Observatories Find Candidate for Most Distant Object in the Universe to Date European Space Agency Galaxy cluster MACS J0647 7 7015Preceded byUDFj 39546284 Most distant astronomical object known2012 Succeeded byUDFj 39546284Preceded byUDFj 39546284 Most distant galaxy known2012 Succeeded byUDFj 39546284 Portals Astronomy Stars Outer space Retrieved from https en wikipedia org w index php title MACS0647 JD amp oldid 1129487598, wikipedia, wiki, book, books, library,
