Wikipedia

PKS 1402+044

PKS 1402+044 is a quasar located in the constellation of Virgo. It has a redshift of 3.207, estimating the object to be located 11.3 billion light-years away from Earth.[1][2]

PKS 1402+044
PKS 1402+044 captured by DESI Legacy Surveys
Observation data (J2000.0 epoch)
ConstellationVirgo
Right ascension14h 05m 01.12s
Declination+04d 15m 35.82s
Redshift3.207977
Heliocentric radial velocity961,727 km/s
Distance11.323 Gly (light travel time distance)
Apparent magnitude (V)0.074
Apparent magnitude (B)0.098
Surface brightness19.6
Characteristics
TypeFSRQ; BAL, BLLAC
Other designations
NVSS J140501+041536, FIRST J140501.1+041535, PGC 2827828, TXS 1402+044, IRCF J140501.1+041535, ZS 1402+043, MRC 1402+044, PMN J1405+0415, SDSS J140501.12+041535.7

Characteristics

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PKS 1402+044 is classified a broad absorption-line quasar (BAL QSO) observed by Sloan Digital Sky Survey[3] with a flat-spectrum radio source.[4][5] It is also classified a blazar, a type of active galaxy[6][7] and such produces a powerful astrophysical jet that is shot out into the depths of intergalactic space.[8] Observations made by the European VLBI network, finds the jet is weakly distorted and considered most distant in the universe's history.[9]

The blazar is known to be in its quiescent state, but it shows repeated periods of outbursts that are visible throughout the electromagnetic spectrum.[10] According to observations from Gamma-Ray Blazar Survey and Fermi Gamma-Ray Space Telescope, PKS 1402+044 is found optically variable with >6σ significance,[11] γ-ray detected and more Compton dominated than high synchrotron peaked (HSP) BL Lac objects.[12]

Through radio imaging by researchers, the quasar is core-dominated with fluctuating radio emission and radio morphology found smaller in comparison of steep-spectrum quasars.[13] It is also the brightest X-ray quasar but with compact dispersion of <logL χ1>=46.15±0.25 at high redshift.[14] The quasar is radio-loud with straightened jet magnetic fields along its source axis and a lobe field found to have a misaligned orientation.[15]

References

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  1. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-06-13.
  2. ^ Peterson, B. A.; Jauncey, D. L.; Wright, A. E.; Condon, J. J. (1978-06-01). "PKS 1402+44: a red object with a redshift of 3.20". The Astrophysical Journal. 222: L81–L83. Bibcode:1978ApJ...222L..81P. doi:10.1086/182697. ISSN 0004-637X.
  3. ^ Gibson, Robert R.; Jiang, Linhua; Brandt, W. N.; Hall, Patrick B.; Shen, Yue; Wu, Jianfeng; Anderson, Scott F.; Schneider, Donald P.; Vanden Berk, Daniel; Gallagher, S. C.; Fan, Xiaohui; York, Donald G. (2009-02-01). "A Catalog of Broad Absorption Line Quasars in Sloan Digital Sky Survey Data Release 5". The Astrophysical Journal. 692 (1): 758–777. arXiv:0810.2747. Bibcode:2009ApJ...692..758G. doi:10.1088/0004-637X/692/1/758. ISSN 0004-637X.
  4. ^ Healey, Stephen E.; Romani, Roger W.; Taylor, Gregory B.; Sadler, Elaine M.; Ricci, Roberto; Murphy, Tara; Ulvestad, James S.; Winn, Joshua N. (2007-07-01). "CRATES: An All-Sky Survey of Flat-Spectrum Radio Sources". The Astrophysical Journal Supplement Series. 171 (1): 61–71. arXiv:astro-ph/0702346. Bibcode:2007ApJS..171...61H. doi:10.1086/513742. ISSN 0067-0049.
  5. ^ Siebert, J.; Brinkmann, W.; Drinkwater, M. J.; Yuan, W.; Francis, P. J.; Peterson, B. A.; Webster, R. L. (1998-11-01). "X-ray properties of the Parkes sample of flat-spectrum radio sources: dust in radio-loud quasars?". Monthly Notices of the Royal Astronomical Society. 301 (1): 261–279. arXiv:astro-ph/9808065. Bibcode:1998MNRAS.301..261S. doi:10.1046/j.1365-8711.1998.02019.x. ISSN 0035-8711.
  6. ^ Massaro, E.; Giommi, P.; Leto, C.; Marchegiani, P.; Maselli, A.; Perri, M.; Piranomonte, S.; Sclavi, S. (2009-02-01). "Roma-BZCAT: a multifrequency catalogue of blazars". Astronomy and Astrophysics. 495 (2): 691–696. arXiv:0810.2206. Bibcode:2009A&A...495..691M. doi:10.1051/0004-6361:200810161. ISSN 0004-6361.
  7. ^ Paliya, Vaidehi S.; Marcotulli, L.; Ajello, M.; Joshi, M.; Sahayanathan, S.; Rao, A. R.; Hartmann, D. (2017-12-01). "General Physical Properties of CGRaBS Blazars". The Astrophysical Journal. 851 (1): 33. arXiv:1711.01292. Bibcode:2017ApJ...851...33P. doi:10.3847/1538-4357/aa98e1. ISSN 0004-637X.
  8. ^ Liu, F. K.; Zhang, Y. H. (2002-01-01). "A new list of extra-galactic radio jets". Astronomy and Astrophysics. 381 (3): 757–760. arXiv:astro-ph/0212477. Bibcode:2002A&A...381..757L. doi:10.1051/0004-6361:20011572. ISSN 0004-6361.
  9. ^ Gurvits, L. I.; Kardashev, N. S.; Popov, M. V.; Schilizzi, R. T.; Barthel, P. D.; Pauliny-Toth, I. I. K.; Kellermann, K. I. (1992-07-01). "The compact radio structure of the high redshift quasars 0642+449, 1402+044, 1614+051". Astronomy and Astrophysics. 260: 82–88. Bibcode:1992A&A...260...82G. ISSN 0004-6361.
  10. ^ Liodakis, I.; Pavlidou, V.; Hovatta, T.; Max-Moerbeck, W.; Pearson, T. J.; Richards, J. L.; Readhead, A. C. S. (2017-06-01). "Bimodal radio variability in OVRO-40 m-monitored blazars". Monthly Notices of the Royal Astronomical Society. 467 (4): 4565–4576. arXiv:1702.05493. Bibcode:2017MNRAS.467.4565L. doi:10.1093/mnras/stx432. ISSN 0035-8711.
  11. ^ Richards, J. L.; Hovatta, T.; Max-Moerbeck, W.; Pavlidou, V.; Pearson, T. J.; Readhead, A. C. S. (2014-03-01). "Connecting radio variability to the characteristics of gamma-ray blazars". Monthly Notices of the Royal Astronomical Society. 438 (4): 3058–3069. arXiv:1312.3634. Bibcode:2014MNRAS.438.3058R. doi:10.1093/mnras/stt2412. ISSN 0035-8711.
  12. ^ Hovatta, T.; Pavlidou, V.; King, O. G.; Mahabal, A.; Sesar, B.; Dancikova, R.; Djorgovski, S. G.; Drake, A.; Laher, R.; Levitan, D.; Max-Moerbeck, W.; Ofek, E. O.; Pearson, T. J.; Prince, T. A.; Readhead, A. C. S. (2014-03-01). "Connection between optical and γ-ray variability in blazars". Monthly Notices of the Royal Astronomical Society. 439 (1): 690–702. arXiv:1401.0538. Bibcode:2014MNRAS.439..690H. doi:10.1093/mnras/stt2494. ISSN 0035-8711.
  13. ^ Barthel, Peter D.; Vestergaard, Marianne; Lonsdale, Colin J. (2000-02-01). "Radio imaging of core-dominated high redshift quasars". Astronomy and Astrophysics. 354: 7–16. arXiv:astro-ph/9911474. Bibcode:2000A&A...354....7B. ISSN 0004-6361.
  14. ^ Sapre, A. K.; Mishra, V. D. (1985-10-01). "Redshifts of the brightest X-ray QSO's". Astrophysics and Space Science. 115 (1): 107–118. Bibcode:1985Ap&SS.115..107S. doi:10.1007/BF00653831. ISSN 0004-640X.
  15. ^ Feigelson, E. D.; Isobe, T.; Kembhavi, A. (1984-10-01). "Radio and X-ray emission in radio-selected quasars". The Astronomical Journal. 89: 1464–1477. Bibcode:1984AJ.....89.1464F. doi:10.1086/113648. ISSN 0004-6256.
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