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Pictor A
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| Pictor A | |
|---|---|
.jpg) Image from Chandra X-ray Observatory showing a jet of plasma emanating from Pictor A | |
| Observation data (J2000 epoch) | |
| Constellation | Pictor |
| Right ascension | 05h 19m 49.721s[1] |
| Declination | −45° 46′ 43.85″[1] |
| Redshift | 0.03498±0.00005[2] |
| Heliocentric radial velocity | 10,495±42 km/s[3] |
| Galactocentric velocity | 10,308±43 km/s[3] |
| Distance | 506.2 ± 35.55 Mly (155.2 ± 10.9 Mpc)h−1 0.6774 (Comoving)[3] 495 Mly (151.8 Mpc)h−1 0.6774 (Light-travel) |
| Apparent magnitude (V) | 15.77[4] |
| Apparent magnitude (B) | 16.64[4] |
| Absolute magnitude (V) | 19.2[4] |
| Characteristics | |
| Type | S00[5] |
| Size | 319,760 ly × 271,790 ly (98.04 kpc × 83.33 kpc) (diameter; 2MASS K-band total isophote)[3][a] 95,690 ly × 66,990 ly (29.34 kpc × 20.54 kpc) (diameter; "total" magnitude)[3][a] |
| Apparent size (V) | 0.49′ × 0.34′[3] |
| Other designations | |
| Pic A, PKS 0518-45, 2CXO J051949.7-454643 | |
Pictor A is a double-lobed broad-line radio galaxy[6] around 155.2 megaparsecs (506 million light-years) away in the constellation Pictor, and a powerful source of radio waves in the Southern Celestial Hemisphere.[7] From a supermassive black hole at its centre, a relativistic jet shoots out to an X-ray hot spot 300,000 light-years away.[8]
Notes
[edit]References
[edit]- ^ a b "The Chandra Source Catalog Release 2.0". Smithsonian Astrophysical Observatory. 24 October 2019.
- ^ Eracleous, Michael; Halpern, Jules P. (January 2004). "Accurate redshifts and classifications for 110 radio-loud active galactic nuclei". The Astrophysical Journal Supplement Series. 150 (1): 181–186. arXiv:astro-ph/0309498. Bibcode:2004ApJS..150..181E. doi:10.1086/379823.
- ^ a b c d e f "Detailed Information for Object Pictor A". NASA/IPAC Extragalactic Database. Retrieved September 11, 2023.
- ^ a b c Véron-Cetty, M.-P.; Véron, P. (2010). "A catalogue of quasars and active nuclei: 13th edition". Astronomy & Astrophysics. 518 (A10): A10. Bibcode:2010A&A...518A..10V. doi:10.1051/0004-6361/201014188.
- ^ Lauberts, A.; Valentijn, E. A. (1989). "The Surface Photometry Catalogue of the ESO-Uppsala Galaxies".
- ^ Brown, Anthony M.; Adams, Jenni (April 2012). "Discovery of γ-ray emission from the broad-line radio galaxy Pictor A". Monthly Notices of the Royal Astronomical Society. 421 (3): 2303–2309. arXiv:1201.0034. Bibcode:2012MNRAS.421.2303B. doi:10.1111/j.1365-2966.2012.20451.x.
- ^ Perley, Richard A.; Röser, Hermann-Josef; Meisenheimer, Klaus (1997). "The Radio Galaxy Pictor A – a Study with the VLA" (PDF). Astronomy & Astrophysics. 328: 12–32. Bibcode:1997A&A...328...12P.
- ^ "Spectacular X-ray Jet Points Toward Cosmic Energy Booster". Exploring the Universe. Chandra X-ray Observatory. 6 June 2000. Retrieved 6 March 2024.
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