Z 229-15

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Z 229-15
Everything, in one place, all at once (potw2313a).tiff
Z 229-15, as photographed by the Hubble Space Telescope
Observation data (Epoch J2000)
Constellation Lyra
Right ascension 19 5 25.87
Declination 42° 27' 41.22"
Redshift 0.027879
Distance 390 million
Type Sy1
Notable features Seyfert galaxy containing a quasar
Other designations
PGC 62756, CGCG 229-015, KIC 006932990, 2PBC J1905.3+4232
See also: Quasar, List of quasars

Z 229-15 is a ring galaxy in the constellation Lyra. [1] It is around 390 million light-years from Earth. It has been referred to by NASA and other space agencies as hosting an active galactic nucleus, a quasar, and a Seyfert galaxy, each of which overlap in some way.

Z 229-15 was first discovered by astronomer, D. Proust from the Meudon Observatory in 1990. According to Proust, he described the object as a possible obscured spiral galaxy featuring strong signs of absorption. Additionally, Z 229-15 was also observed through the 1.93-m telescope taken at Observatorie de Haute-Provence. [2]

Z 229-15's classification has been up for speculation for many years. Z 229-15 has been widely called a quasar, and if this is true would make Z 229-15 positively local. Many space agencies, notably NASA, have called it a Seyfert galaxy that contains a quasar, and that, by definition, hosts an active galactic nuclei. This would make Z 229-15 a very uncommon galaxy in scientific terms. [3]

Z 229-15 has a supermassive black hole at its core. [4] [5] The mass of the black hole is solar masses. [6] The interstellar matter in Z 229-15 gets so hot that it releases a large amount of energy across the electromagnetic spectrum on a regular basis. [7]

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References

  1. ↑ Stefanie Waldek (2023-03-29). "Hubble telescope spies mysterious celestial object that defies classification". Space.com. Retrieved 2024-03-21.
  2. ↑ Proust, D. (1990-11-01). "Zwicky 229-15". International Astronomical Union Circular (5134): 2. Bibcode:1990IAUC.5134....2P. ISSN   0081-0304.
  3. ↑ information@eso.org. "Everything, in one place, all at once". www.esahubble.org. Retrieved 2024-07-26.
  4. ↑ Lazaro, Enrico de (2023-03-27). "Hubble Space Telescope Spots Very Luminous Seyfert Galaxy | Sci.News". Sci.News: Breaking Science News. Retrieved 2024-03-21.
  5. ↑ Barth, Aaron J.; Nguyen, My L.; Malkan, Matthew A.; Filippenko, Alexei V.; Li, Weidong; Gorjian, Varoujan; Joner, Michael D.; Bennert, Vardha Nicola; Botyanszki, Janos; Cenko, S. Bradley; Childress, Michael; Choi, Jieun; Comerford, Julia M.; Cucciara, Antonino; da Silva, Robert (2011-05-01). "Broad-line Reverberation in the Kepler-field Seyfert Galaxy Zw 229-015". The Astrophysical Journal. 732 (2): 121. arXiv: 1103.2153 . Bibcode:2011ApJ...732..121B. doi:10.1088/0004-637X/732/2/121. ISSN   0004-637X.
  6. ↑ Williams, Peter R.; Pancoast, Anna; Treu, Tommaso; Brewer, Brendon J.; Barth, Aaron J.; Bennert, Vardha N.; Buehler, Tabitha; Canalizo, Gabriela; Cenko, S. Bradley; Clubb, Kelsey I.; Cooper, Michael C.; Filippenko, Alexei V.; Gates, Elinor; Hoenig, Sebastian F.; Joner, Michael D. (2018-10-01). "The Lick AGN Monitoring Project 2011: Dynamical Modeling of the Broad-line Region". The Astrophysical Journal. 866 (2): 75. arXiv: 1809.05113 . Bibcode:2018ApJ...866...75W. doi: 10.3847/1538-4357/aae086 . ISSN   0004-637X.
  7. ↑ "Hubble Views an Intriguing Active Galaxy". science.nasa.gov. Retrieved 2024-03-21.
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