Astronomy: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] |
| Helio 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−10.6774 (Comoving)[3] 495 Mly (151.8 Mpc)h−10.6774 (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][lower-alpha 1] 95,690 ly × 66,990 ly (29.34 kpc × 20.54 kpc) (diameter; "total" magnitude)[3][lower-alpha 1] |
| 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
References
- ↑ 1.0 1.1 "The Chandra Source Catalog Release 2.0". Smithsonian Astrophysical Observatory. 24 October 2019. http://cda.cfa.harvard.edu/cscweb/cone-search-indiv-by-coords.do?json=%7B%22selectQualifier%22%3A%7B%22selectClause%22%3A%22top-10%22%7D%2C%22coords%22%3A%7B%22ra%22%3A79.95729166666666%2C%22dec%22%3A-45.77884722222222%2C%22sr%22%3A%7B%22value%22%3A%221%22%2C%22unit%22%3A%22arcsec%22%7D%7D%2C%22userSuppliedRAandDEC%22%3A%7B%22ra%22%3A%225%3A19%3A49.75%22%2C%22dec%22%3A%22-45%3A46%3A43.85%22%7D%7D.
- ↑ 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. doi:10.1086/379823. Bibcode: 2004ApJS..150..181E.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "Detailed Information for Object Pictor A". NASA/IPAC Extragalactic Database. https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=Pictor%20A&extend=no&hconst=67.74&omegam=0.3089&omegav=0.6911&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ 4.0 4.1 4.2 Véron-Cetty, M.-P.; Véron, P. (2010). "A catalogue of quasars and active nuclei: 13th edition". Astronomy & Astrophysics 518 (A10): A10. doi:10.1051/0004-6361/201014188. Bibcode: 2010A&A...518A..10V. https://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ5e587bec2677&-out.add=.&-source=VII/258/vv10&recno=139955.
- ↑ Lauberts, A.; Valentijn, E. A. (1989). "The Surface Photometry Catalogue of the ESO-Uppsala Galaxies". https://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ5e599ee2849d&-out.add=.&-source=VII/115/esolv1&ESO-LV=2522180.
- ↑ 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. doi:10.1111/j.1365-2966.2012.20451.x. Bibcode: 2012MNRAS.421.2303B.
- ↑ Perley, Richard A.; Röser, Hermann-Josef; Meisenheimer, Klaus (1997). "The Radio Galaxy Pictor A – a Study with the VLA". Astronomy & Astrophysics 328: 12–32. Bibcode: 1997A&A...328...12P. http://www.mso.anu.edu.au/~geoff/HEA/Perley.pdf.
- ↑ "Spectacular X-ray Jet Points Toward Cosmic Energy Booster". Exploring the Universe. Chandra X-ray Observatory. 6 June 2000. https://chandra.harvard.edu/press/00_releases/press_060600pic.html.
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