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3C 459

3C 459
The radio galaxy 3C 459.
Observation data (J2000.0 epoch)
ConstellationPisces
Right ascension23h 16m 35.19s
Declination+04° 05′ 18.29″
Redshift0.220120
Heliocentric radial velocity65,990 km/s
Distance2.742 Gly (840.7 Mpc)
Apparent magnitude (V)16.68
Apparent magnitude (B)17.54
Characteristics
TypeSy2, N galaxy;BLRG, LINER
Size8.73 kiloparsecs (28,500 light-years)
(diameter; 0.5-1.2 keV Chandra)[1]
Notable featuresRadio galaxy
Other designations
PGC 70899, IRAS 23140+0348, 4C +03.57, PKS 2314+03, NRAO 0709, TXS 2314+038

3C 459 known as IRAS 23140+0348, is a radio galaxy located in the constellation Pisces. It is located 2.74 billion light years from Earth and is classified as a Seyfert 2 and LINER galaxy.[1]

Characteristics

3C 459 is categorized a Fanaroff-Riley class II radio galaxy.[2][3] Its luminosity at both radio and far infrared wavelengths is Lv(4.8 GHz) = 1026.4 W Hz−1 and vLv(60 μm) = 1012.2 Lʘ.[4] The host galaxy of 3C 459 is an elliptical galaxy with a disturbed outer morphology indicating a product of a galaxy merger.[4] It also has a young stellar population.[5][6]

3C 459 contains a triple radio structure, measuring a total extent of 29 kiloparsecs (kpc).[7] It consists of a radio core and two radio lobes separated by 40 kpc.[4] The radio core in 3C 459 has a compact steep radio spectrum with east and west extensions.[8] As for the lobes on the other hand, the western lobe is equally 5.5 times further from the nucleus,[7] while the eastern lobe is compact and more closer.[9] It is also indicated to be significantly depolarized by interstellar medium since only the western lobe shows strong polarization.[7]

According to follow-up observation by Chandra X-ray Observatory in 2014, 3C 459 shows X-ray emission properties. Although most X-ray emission originates from the radio core, a significant amount of it is found at larger angular separations from the core, surrounding the galaxy's lobes and radio jets.[10]

There is also detections of diffused nuclear emissions and a filamentary ionized gas structure in 3C 459 creating a single-sided triangular-shaped region with an outward expansion of up to ~ 80 kpc. In its central emission line region, it is dominated by two compact knots of similar flux. Both of them are found to have an offset of ~ 400 km s-1 from velocity point of view suggesting a dual active galactic nuclei (AGN) system in 3C 459.[11]

References

  1. ^ a b "By Name NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 2024-10-12.
  2. ^ Tadhunter, C.; Dickson, R.; Morganti, R.; Robinson, T. G.; Wills, K.; Villar-Martin, M.; Hughes, M. (March 2002). "The origin of the UV excess in powerful radio galaxies: spectroscopy and polarimetry of a complete sample of intermediate-redshift radio galaxies". Monthly Notices of the Royal Astronomical Society. 330 (4): 977–996. arXiv:astro-ph/0201391. Bibcode:2002MNRAS.330..977T. doi:10.1046/j.1365-8711.2002.05153.x. ISSN 0035-8711.
  3. ^ J.E. Floyd, David; Axon, David; Baum, Stefi; Capetti, Alessandro; Chiaberge, Marco; Macchetto, Duccio (July 2008). "Hubble Space Telescope Near-infrared Snapshot Survey of 3CR Radio Source Counterparts. II. An Atlas and Inventory of the Host Galaxies, Mergers, and Companions". The Astrophysical Journal Supplement Series. 177 (1): 148–173. arXiv:0712.0595. Bibcode:2008ApJS..177..148F. doi:10.1086/587622. Retrieved 2024-10-12.
  4. ^ a b c Drake, Catherine L.; McGregor, Peter J.; Dopita, Michael A.; van Breugel, W. J. M. (November 2003). "Radio-ExcessIRASGalaxies: PMN/FSC Sample Selection". The Astronomical Journal. 126 (5): 2237–2267. arXiv:astro-ph/0306573. Bibcode:2003AJ....126.2237D. doi:10.1086/378714. ISSN 0004-6256.
  5. ^ Thomasson, P.; Saikia, D. J.; Muxlow, T. W. B. (May 2003). "3C 459: a highly asymmetric radio galaxy with a starburst". Monthly Notices of the Royal Astronomical Society. 341 (1): 91–99. arXiv:astro-ph/0305176. Bibcode:2003MNRAS.341...91T. doi:10.1046/j.1365-8711.2003.06393.x. ISSN 0035-8711.
  6. ^ Morganti, R.; Oosterloo, T. A.; Tadhunter, C. N.; van Moorsel, G.; Killeen, N.; Wills, K. A. (2001-05-11). "H I absorption in radio galaxies: effect of orientation or interstellar medium?". Monthly Notices of the Royal Astronomical Society. 323 (2): 331–342. arXiv:astro-ph/0010636. Bibcode:2001MNRAS.323..331M. doi:10.1046/j.1365-8711.2001.04153.x. ISSN 0035-8711.
  7. ^ a b c Ulvestad, J. S. (1985-01-01). "The radio structure and host galaxy of 3C 459". The Astrophysical Journal. 288: 514–520. Bibcode:1985ApJ...288..514U. doi:10.1086/162816. ISSN 0004-637X.
  8. ^ Farrah, D.; Rowan-Robinson, M.; Oliver, S.; Serjeant, S.; Borne, K.; Lawrence, A.; Lucas, R.A.; Bushouse, H.; Colina, L. (October 2001). "HST/WFPC2 imaging of the QDOT ultraluminous infrared galaxy sample". Monthly Notices of the Royal Astronomical Society. 326 (4): 1333–1352. arXiv:astro-ph/0106275. Bibcode:2001MNRAS.326.1333F. doi:10.1111/j.1365-2966.2001.04721.x. ISSN 0035-8711.
  9. ^ Morganti, R.; Oosterloo, T.; Tadhunter, C.N.; Aiudi, R.; Jones, P.; Villar-Martin, M. (December 1999). "The radio structures of southern 2-Jy radio sources: New ATCA and VLA radio images" (PDF). Astronomy & Astrophysics Supplement Series. 140 (3): 355–372. arXiv:astro-ph/9910150. Bibcode:1999A&AS..140..355M. doi:10.1051/aas:1999427.
  10. ^ Maselli, A.; Kraft, R. P.; Massaro, F.; Hardcastle, M. J. (2018-11-01). "Focusing on the extended X-ray emission in 3C 459 with a Chandra follow-up observation". Astronomy & Astrophysics. 619: A75. arXiv:1812.04015. Bibcode:2018A&A...619A..75M. doi:10.1051/0004-6361/201833332. ISSN 0004-6361.
  11. ^ Balmaverde, B.; Capetti, A.; Marconi, A.; Venturi, G.; Chiaberge, M.; Baldi, R. D.; Baum, S.; Gilli, R.; Grandi, P.; Meyer, E.; Miley, G.; O’Dea, C.; Sparks, W.; Torresi, E.; Tremblay, G. (2018-11-01). "The MURALES survey - I. A dual AGN in the radio galaxy 3C 459?". Astronomy & Astrophysics. 619: A83. arXiv:1809.04083. Bibcode:2018A&A...619A..83B. doi:10.1051/0004-6361/201833515. ISSN 0004-6361.
Quelle: https://en.wikipedia.org/wiki/3C_459