Unveiling a Population of Strong Galaxy-Galaxy Lensed, Faint Dusty Star-forming Galaxies
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A90106%2F25%3A00646713" target="_blank" >RIV/67985815:90106/25:00646713 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3847/2041-8213/adfa88" target="_blank" >https://doi.org/10.3847/2041-8213/adfa88</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/2041-8213/adfa88" target="_blank" >10.3847/2041-8213/adfa88</a>
Alternative languages
Result language
angličtina
Original language name
Unveiling a Population of Strong Galaxy-Galaxy Lensed, Faint Dusty Star-forming Galaxies
Original language description
The measurements of the number density of galaxy-galaxy strong lenses can be used to put statistical constraints on the foreground mass distributions. Dusty galaxies uncovered in submillimeter surveys are particularly useful in this regard because of the large volume probed by these surveys. Previous discoveries of strong galaxy-galaxy lensed dusty galaxies are predominantly the brightest in the sky discovered by Herschel, South Pole Telescope, and Planck. However, models have also predicted a nonnegligible fraction of strong galaxy-galaxy lensed faint dusty galaxies, which were difficult to confirm due to technical difficulties. Utilizing the deepest SCUBA-2 submillimeter survey, STUDIES, in both the COSMOS and the Ultra Deep Survey fields, together with a red JWST color selection method, we discover a population of 13 strong galaxy-galaxy lensed faint dusty galaxies. The rich ancillary data allow us to confirm their strongly lensed nature via estimates of redshifts and lens modeling. Our systematic search has allowed us to construct the 450 mu m number counts of strongly lensed sources down to the flux levels about an order of magnitude fainter than previous measurements. The measured lensing fractions of similar to 1% are consistent with predictions from models that also successfully produce the number density of the strong galaxy-galaxy lensed bright dusty galaxies. Future searches from Euclid and Roman are expected to discover orders of magnitude more strongly lensed faint dusty galaxies.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
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Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal Letters
ISSN
2041-8205
e-ISSN
2041-8213
Volume of the periodical
990
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
L38
UT code for WoS article
001563655100001
EID of the result in the Scopus database
2-s2.0-105014762306