KIDS J232940-34092
Observation data
ConstellationPisces
Right ascension352.417753
Declination34.156375
Distance5.2 billion light years
Characteristics
TypePost-Blue Nugget

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.[1] 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.[2][3] It was discovered along with KIDS J122456+005048, another blue nugget galaxy with a Einstein cross.[4]

The galaxy has a evolved stellar population of very little stellar formation. This was discovered due to the galaxy's prominent absorption features.[5]

Reference

  1. ↑ Kohler, Susanna (2020-12-01). "Nugget Galaxies Cross in the Sky". AAS Nova Highlights: 7305.
  2. ↑ Hensley, Kerry (2023-08-21). "Featured Image: A New Einstein Cross". AAS Nova. Retrieved 2023-10-29.
  3. ↑ 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. doi:10.3847/2041-8213/abc95b. ISSN 2041-8213.
  4. ↑ 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". Astrophysical Journal Letters. 904 (2). arXiv:2011.09150. doi:10.3847/2041-8213/abc95b. ISSN 2041-8205.
  5. ↑ 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. doi:10.3847/2041-8213/abc95b. ISSN 2041-8213.


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