| PKS 0458-020 | |
|---|---|
 The quasar/blazar PKS 0458-020. | |
| Observation data (J2000.0 epoch) | |
| Constellation | Orion |
| Right ascension | 05h 01m 12.809s |
| Declination | −01° 59′ 14.256″ |
| Redshift | 2.286000 |
| Heliocentric radial velocity | 685,326 km/s |
| Distance | 10.447 Gly |
| Apparent magnitude (V) | 18.06 |
| Apparent magnitude (B) | 19.1 |
| Characteristics | |
| Type | Blazar, HPQ, FRSQ |
| Other designations | |
| 4C -02.19, PKS 0458-02, TXS 0458-020, LEDA 2818086, DA 157, OF -098, 4FGL J0501.2-0158, S3 0458-02 | |
PKS 0458-020 also known as PKS 0458-02, is a quasar located in the constellation of Orion. It has a redshift of (z) 2.286[1][2] and was first identified as an astronomical radio source during the radio survey conducted by Parkes Observatory in 1966.[3] Subsequently the source was shown to display optical behavior[4] before being classfied as a blazar via an optical polarimetry study in 1985.[5] This source also shows radio spectrum appearing to be flat, hence making it a flat-spectrum radio quasar (FRSQ).[6]
- ^ Shen, Z. -Q.; Wan, T. -S.; Moran, J. M.; Jauncey, D. L.; Reynolds, J. E.; Tzioumis, A. K.; Gough, R. G.; Ferris, R. H.; Sinclair, M. W.; Jiang, D. -R.; Hong, X. -Y.; Liang, S. -G.; Costa, M. E.; Tingay, S. J.; McCulloch, P. M. (1997-11-01). "A 5-GHz Southern Hemisphere VLBI Survey of Compact Radio Sources.I." The Astronomical Journal. 114: 1999. doi:10.1086/118621. ISSN 0004-6256.
- ^ Sapre, A. K.; Mishra, V. D. (1985). "Redshifts of the brightest X-ray QSO's". Astrophysics and Space Science. 115 (1): 107–118. doi:10.1007/bf00653831. ISSN 0004-640X.
- ^ Shimmins, A.J.; Day, G.A.; Ekers, R.D.; Cole, D.J. (1966). "The Parkes Catalogue Of Radio Sources Declination Zone 0° To -20°". Australian Journal of Physics. 19 (6): 837. doi:10.1071/ph660837. ISSN 0004-9506.
- ^ Scott, R. L.; Leacock, R. J.; McGimsey, B. Q.; Smith, A. G.; Edwards, P. L.; Hackney, K. R.; Hackney, R. L. (1976-01-01). "Optical behavior of 64 extragalactic radio sources". The Astronomical Journal. 81: 7–19. doi:10.1086/111846. ISSN 0004-6256.
- ^ Impey, C. D.; Tapia, S. (October 1988). "New blazars discovered by polarimetry". The Astrophysical Journal. 333: 666. doi:10.1086/166775. ISSN 0004-637X.
- ^ Ciprini, Stefano; Fermi Large Area Telescope Collaboration (2015-08-01). "Fermi LAT detection of renewed GeV activity from the high redshift blazar PKS 0458-02". The Astronomer's Telegram. 7952: 1. Bibcode:2015ATel.7952....1C.