| PKS 1622-297 | |
|---|---|
 The blazar PKS 1622-297. | |
| Observation data (J2000.0 epoch) | |
| Constellation | Scorpius |
| Right ascension | 16h 26m 06.020s |
| Declination | −29° 51′ 26.971″ |
| Redshift | 0.813800 |
| Heliocentric radial velocity | 243,971 km/s |
| Distance | 6.885 Gly |
| Apparent magnitude (V) | 20.5 |
| Apparent magnitude (B) | 18.41 |
| Characteristics | |
| Type | Blazar, LPQ, FRSQ |
| Notable features | Gamma ray emitting blazar |
| Other designations | |
| LEDA 2828823, 4FGL J1626.0-2950, QSO B1622-297, Cul 1622-297, 2CXO J162606.0-295126, PKS B1622-297 | |
PKS 1622-297 is a blazar[1][2] located in the constellation of Scorpius. It is one of the brightest objects of its type in the gamma ray region.[3] It has a redshift of (z) 0.815.[4] This blazar was first discovered as a compact astronomical radio source in 1970 by astronomers who were conducting interferometer observations[5] and identified with an optical counterpart in 1984.[6] In addition, the radio spectrum of the source appears flat, making it a flat-spectrum radio quasar (FRSQ).[7][8]
- ^ Collmar, W.; Schönfelder, V.; Bloemen, H.; Blom, J. J.; Hermsen, W.; McConnell, M.; Stacy, J. G.; Bennett, K.; Williams, O. R. (1997-05-01). "Evidence for γ-ray flares in 3C 279 and PKS 1622-297 at ~10 MeV". Proceedings of the Fourth Compton Symposium. 410: 1341–1345. arXiv:astro-ph/9711111. Bibcode:1997AIPC..410.1341C. doi:10.1063/1.54054.
- ^ Writer, Staff. "Gamma ray: Observatory discovers spectacular, energetic flare". The Stockton Record. Retrieved 2024-11-10.
- ^ Fan, J. H.; Xie, G. Z.; Bacon, R. (1999-04-01). "The central black hole masses and Doppler factors of the gamma -ray loud blazars" (PDF). Astronomy and Astrophysics Supplement Series. 136: 13–18. arXiv:astro-ph/9910358. Bibcode:1999A&AS..136...13F. doi:10.1051/aas:1999194. ISSN 0365-0138.
- ^ Mattox, J. R.; Wagner, S. J.; Malkan, M.; McGlynn, T. A.; Schachter, J. F.; Grove, J. E.; Johnson, W. N.; Kurfess, J. D. (1997-02-20). "An Intense Gamma-Ray Flare of PKS 1622−297". The Astrophysical Journal. 476 (2): 692–697. arXiv:astro-ph/9610007. Bibcode:1997ApJ...476..692M. doi:10.1086/303639. ISSN 0004-637X.
- ^ Broderick, J. J.; Kellermann, K. I.; Shaffer, D. B.; Jauncey, D. L. (March 1972). "High-Resolution Observations of Compact Radio Sources at 13 Centimeters. II". The Astrophysical Journal. 172: 299. Bibcode:1972ApJ...172..299B. doi:10.1086/151347. ISSN 0004-637X.
- ^ Torres, C.; Wroblewski, H. (December 1984). "Optical counterpart candidates of radio sources 1320 - 446, 1622 - 297, 1908 - 202, and 2106 - 413". Astronomy & Astrophysics. 141 (1): 271–273. Bibcode:1984A&A...141..271T. ISSN 0004-6361.
- ^ Zhang, S.; Collmar, W.; Bennett, K.; Bloemen, H.; Hermsen, W.; McConnell, M.; Reimer, O.; Schönfelder, V.; Wagner, S. J.; Williams, O. R. (May 2002). "COMPTEL observations of the gamma-ray blazar PKS 1622-297" (PDF). Astronomy & Astrophysics. 386 (3): 843–853. arXiv:astro-ph/0203231. Bibcode:2002A&A...386..843Z. doi:10.1051/0004-6361:20020267. ISSN 0004-6361.
- ^ Lister, Matthew. "MOJAVE Sample: 1622-297". www.cv.nrao.edu. Retrieved 2024-11-10.