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IC 4329A

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Galaxy in the constellation of centaurus

IC 4329A, also commonly referred as PGC 49051 is a Seyfert galaxy in the constellation of Centaurus. Its distance from Earth is 206 million light years. The declination of IC 4329A is approximately -30.2 degrees and was first discovered by Wilson A. S. & Penston, M. V. in 1979.

IC 4329A
Observation data (J2000 epoch)
ConstellationCentaurus
Right ascension13 49 19
Declination−30° 18′ 34.21″
Redshift0.015207
Heliocentric radial velocity4,515 kilometres per second
Distance63.39±0.23 megaparsec
Apparent magnitude (V)11.5
Characteristics
TypeGX
Notable featuresSeyfert galaxy
Other designations
PGC 49051, ESO 445-50, IRAS 13464-3003, IRAS F13464-3003, 2MASX J13491927-3018338, ESO-LV 445-0500, MCG-05-33-021, 1ES 1346-30.0, 1RXS J134919.0-301830, 6dFGS gJ134919.3-301834, NVSS J134919-301833, PSCz P13464-3003, RBS 1319, SGC 134628-3003.7, LEDA 49051, 2A 1347-300, 3A 1346-301, INTREF 579, XSS J13492-3020, 679, 1346-300, FLASH J134919.31-301833.1, PBC J1349.2-3018, MAXI J1349-302, 2MAXI J1349-302 and Gaia DR2 6175160320123081600

Characteristics

This galaxy was first described by using an X-ray spectro-polarimetric analysis as an extremely bright Seyfert galaxy on account of the width of H-alpha (13,000 km/sec) and the high H-beta luminosity. This galaxy is described as an edge-on spiral galaxy close to elliptical galaxy IC 4329, which is the brightest galaxy inside a galaxy cluster in the Centaurus region. It has a dust lane displaying extreme polarization.

Additionally, dust components in IC 4329A have been detected mainly in the interstellar medium of its host galaxy as well as its nuclear component located in the active torus.

The supermassive black hole in IC 4329A is estimated to be 6.8
−1.1 x 10 Mʘ.

Nearby galaxies

The closest galaxy next to IC 4329A is IC 4329 with the group of IC 4327, 5302, 5304, 5298, PGC 159482 and PGC 48950.

References

  1. Wilson, A. S.; Penston, M. V. (1979). "IC 4329A: The nearest quasar?". The Astrophysical Journal. 232: 389. Bibcode:1979ApJ...232..389W. doi:10.1086/157298.
  2. "CzSkY".
  3. Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  4. Ingram, A.; et al. (2023). "The X-ray polarisation of the Seyfert 1 galaxy IC 4329A". Monthly Notices of the Royal Astronomical Society. 525 (4): 5437. arXiv:2305.13028. Bibcode:2023MNRAS.525.5437I. doi:10.1093/mnras/stad2625.
  5. "Ic 4329A".
  6. Wilson, A. S.; Penston, M. V. (1979). "IC 4329A: The nearest quasar?". The Astrophysical Journal. 232: 389. Bibcode:1979ApJ...232..389W. doi:10.1086/157298.
  7. Wolstencroft, Ramon D.; Done, C.J. (September 1995). "Imaging polarimetry of the Seyfert galaxy IC 4329A". Monthly Notices of the Royal Astronomical Society. 276 (2): 460–466. doi:10.1093/mnras/276.2.460.
  8. Mehdipour, Missagh; Costantini, Elisa (2018-11-01). "Probing the nature and origin of dust in the reddened quasar IC 4329A with global modelling from X-ray to infrared". Astronomy & Astrophysics. 619: A20. arXiv:1808.04628. Bibcode:2018A&A...619A..20M. doi:10.1051/0004-6361/201833706. ISSN 0004-6361.
  9. Bentz, Misty C.; Onken, Christopher A.; Street, Rachel; Valluri, Monica (2023-02-01). "Reverberation Mapping of IC 4329A". The Astrophysical Journal. 944 (1): 29. arXiv:2212.05954. Bibcode:2023ApJ...944...29B. doi:10.3847/1538-4357/acab62. ISSN 0004-637X.
  10. "CzSkY".

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