A giant galaxy in the young Universe with a massive ring

Research output: Contribution to journal › Journal article › Research › peer-review

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A giant galaxy in the young Universe with a massive ring. / Yuan, Tiantian; Elagali, Ahmed; Labbe, Ivo; Kacprzak, Glenn G.; Lagos, Claudia del P.; Alcorn, Leo Y.; Cohn, Jonathan H.; Tran, Kim-Vy H.; Glazebrook, Karl; Groves, Brent A.; Freeman, Kenneth C.; Spitler, Lee R.; Straatman, Caroline M. S.; Fisher, Deanne B.; Sweet, Sarah M.

In: Nature Astronomy, Vol. 4, No. 10, 01.10.2020, p. 957-964.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Yuan, T, Elagali, A, Labbe, I, Kacprzak, GG, Lagos, CDP, Alcorn, LY, Cohn, JH, Tran, K-VH, Glazebrook, K, Groves, BA, Freeman, KC, Spitler, LR, Straatman, CMS, Fisher, DB & Sweet, SM 2020, 'A giant galaxy in the young Universe with a massive ring', Nature Astronomy, vol. 4, no. 10, pp. 957-964. https://doi.org/10.1038/s41550-020-1102-7

APA

Yuan, T., Elagali, A., Labbe, I., Kacprzak, G. G., Lagos, C. D. P., Alcorn, L. Y., Cohn, J. H., Tran, K-V. H., Glazebrook, K., Groves, B. A., Freeman, K. C., Spitler, L. R., Straatman, C. M. S., Fisher, D. B., & Sweet, S. M. (2020). A giant galaxy in the young Universe with a massive ring. Nature Astronomy, 4(10), 957-964. https://doi.org/10.1038/s41550-020-1102-7

Vancouver

Yuan T, Elagali A, Labbe I, Kacprzak GG, Lagos CDP, Alcorn LY et al. A giant galaxy in the young Universe with a massive ring. Nature Astronomy. 2020 Oct 1;4(10):957-964. https://doi.org/10.1038/s41550-020-1102-7

Author

Yuan, Tiantian ; Elagali, Ahmed ; Labbe, Ivo ; Kacprzak, Glenn G. ; Lagos, Claudia del P. ; Alcorn, Leo Y. ; Cohn, Jonathan H. ; Tran, Kim-Vy H. ; Glazebrook, Karl ; Groves, Brent A. ; Freeman, Kenneth C. ; Spitler, Lee R. ; Straatman, Caroline M. S. ; Fisher, Deanne B. ; Sweet, Sarah M. / A giant galaxy in the young Universe with a massive ring. In: Nature Astronomy. 2020 ; Vol. 4, No. 10. pp. 957-964.

Bibtex

@article{19d68e4fb8624bf0ba3d50c5bb070a36,
title = "A giant galaxy in the young Universe with a massive ring",
abstract = "In the local (redshift z approximate to 0) Universe, collisional ring galaxies make up only similar to 0.01% of galaxies(1) and are formed by head-on galactic collisions that trigger radially propagating density waves(2-4). These striking systems provide key snapshots for dissecting galactic disks and are studied extensively in the local Universe(5-9). However, not much is known about distant (z > 0.1) collisional rings(10-14). Here we present a detailed study of a ring galaxy at a look-back time of 10.8 Gyr (z = 2.19). Compared with our Milky Way, this galaxy has a similar stellar mass, but has a stellar half-light radius that is 1.5-2.2 times larger and is forming stars 50 times faster. The extended, diffuse stellar light outside the star-forming ring, combined with a radial velocity on the ring and an intruder galaxy nearby, provides evidence for this galaxy hosting a collisional ring. If the ring is secularly evolved(15,16), the implied large bar in a giant disk would be inconsistent with the current understanding of the earliest formation of barred spirals(17-21). Contrary to previous predictions(10-12), this work suggests that massive collisional rings were as rare 11 Gyr ago as they are today. Our discovery offers a unique pathway for studying density waves in young galaxies, as well as constraining the cosmic evolution of spiral disks and galaxy groups.",
keywords = "FORMATION RATES, STAR-FORMATION, STELLAR, CATALOG, WHEELS, MASSES, MILKY, FIRE",
author = "Tiantian Yuan and Ahmed Elagali and Ivo Labbe and Kacprzak, {Glenn G.} and Lagos, {Claudia del P.} and Alcorn, {Leo Y.} and Cohn, {Jonathan H.} and Tran, {Kim-Vy H.} and Karl Glazebrook and Groves, {Brent A.} and Freeman, {Kenneth C.} and Spitler, {Lee R.} and Straatman, {Caroline M. S.} and Fisher, {Deanne B.} and Sweet, {Sarah M.}",
year = "2020",
month = oct,
day = "1",
doi = "10.1038/s41550-020-1102-7",
language = "English",
volume = "4",
pages = "957--964",
journal = "Nature Astronomy",
issn = "2397-3366",
publisher = "nature publishing group",
number = "10",

}

RIS

TY - JOUR

T1 - A giant galaxy in the young Universe with a massive ring

AU - Yuan, Tiantian

AU - Elagali, Ahmed

AU - Labbe, Ivo

AU - Kacprzak, Glenn G.

AU - Lagos, Claudia del P.

AU - Alcorn, Leo Y.

AU - Cohn, Jonathan H.

AU - Tran, Kim-Vy H.

AU - Glazebrook, Karl

AU - Groves, Brent A.

AU - Freeman, Kenneth C.

AU - Spitler, Lee R.

AU - Straatman, Caroline M. S.

AU - Fisher, Deanne B.

AU - Sweet, Sarah M.

PY - 2020/10/1

Y1 - 2020/10/1

N2 - In the local (redshift z approximate to 0) Universe, collisional ring galaxies make up only similar to 0.01% of galaxies(1) and are formed by head-on galactic collisions that trigger radially propagating density waves(2-4). These striking systems provide key snapshots for dissecting galactic disks and are studied extensively in the local Universe(5-9). However, not much is known about distant (z > 0.1) collisional rings(10-14). Here we present a detailed study of a ring galaxy at a look-back time of 10.8 Gyr (z = 2.19). Compared with our Milky Way, this galaxy has a similar stellar mass, but has a stellar half-light radius that is 1.5-2.2 times larger and is forming stars 50 times faster. The extended, diffuse stellar light outside the star-forming ring, combined with a radial velocity on the ring and an intruder galaxy nearby, provides evidence for this galaxy hosting a collisional ring. If the ring is secularly evolved(15,16), the implied large bar in a giant disk would be inconsistent with the current understanding of the earliest formation of barred spirals(17-21). Contrary to previous predictions(10-12), this work suggests that massive collisional rings were as rare 11 Gyr ago as they are today. Our discovery offers a unique pathway for studying density waves in young galaxies, as well as constraining the cosmic evolution of spiral disks and galaxy groups.

AB - In the local (redshift z approximate to 0) Universe, collisional ring galaxies make up only similar to 0.01% of galaxies(1) and are formed by head-on galactic collisions that trigger radially propagating density waves(2-4). These striking systems provide key snapshots for dissecting galactic disks and are studied extensively in the local Universe(5-9). However, not much is known about distant (z > 0.1) collisional rings(10-14). Here we present a detailed study of a ring galaxy at a look-back time of 10.8 Gyr (z = 2.19). Compared with our Milky Way, this galaxy has a similar stellar mass, but has a stellar half-light radius that is 1.5-2.2 times larger and is forming stars 50 times faster. The extended, diffuse stellar light outside the star-forming ring, combined with a radial velocity on the ring and an intruder galaxy nearby, provides evidence for this galaxy hosting a collisional ring. If the ring is secularly evolved(15,16), the implied large bar in a giant disk would be inconsistent with the current understanding of the earliest formation of barred spirals(17-21). Contrary to previous predictions(10-12), this work suggests that massive collisional rings were as rare 11 Gyr ago as they are today. Our discovery offers a unique pathway for studying density waves in young galaxies, as well as constraining the cosmic evolution of spiral disks and galaxy groups.

KW - FORMATION RATES

KW - STAR-FORMATION

KW - STELLAR

KW - CATALOG

KW - WHEELS

KW - MASSES

KW - MILKY

KW - FIRE

U2 - 10.1038/s41550-020-1102-7

DO - 10.1038/s41550-020-1102-7

M3 - Journal article

VL - 4

SP - 957

EP - 964

JO - Nature Astronomy

JF - Nature Astronomy

SN - 2397-3366

IS - 10

ER -

ID: 258028434