KIDS J232940-34092
KIDS J232940-34092 is a massive quadruple lens compact post-blue nugget type galaxy that is located at Redshift 0.38, meaning it is located about 5.2 billion light years from Earth. It has a Einstein cross effect, a effect where light from a distant galaxy comes across a region of spacetime that is warped (gravitational lensed) by a massive galaxy in the lights path. It was discovered along with KIDS J122456+005048, another blue nugget galaxy with a Einstein cross.
The galaxy has a evolved stellar population of very little stellar formation. This was discovered due to the galaxy's prominent absorption features.
Reference
- ^ "[NLS2020] KIDS-EC1 system". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-11-02.
- ^ Kohler, Susanna (2020-12-01). "Nugget Galaxies Cross in the Sky". AAS Nova Highlights: 7305. Bibcode:2020nova.pres.7305K.
- ^ Hensley, Kerry (2023-08-21). "Featured Image: A New Einstein Cross". AAS Nova. Retrieved 2023-10-29.
- ^ Napolitano, N. R.; Li, R.; Spiniello, C.; Tortora, C.; Sergeyev, A.; D’Ago, G.; Guo, X.; Xie, L.; Radovich, M.; Roy, N.; Koopmans, L. V. E.; Kuijken, K.; Bilicki, M.; Erben, T.; Getman, F. (2020-12-03). "Discovery of Two Einstein Crosses from Massive Post-blue Nugget Galaxies at z > 1 in KiDS". The Astrophysical Journal. 904 (2): L31. arXiv:2011.09150. Bibcode:2020ApJ...904L..31N. doi:10.3847/2041-8213/abc95b. ISSN 2041-8213.
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