Jump to content

4C +01.02

Add links
From Wikipedia, the free encyclopedia
4C +01.02
The blazar 4C +01.02.
Observation data (J2000.0 epoch)
ConstellationCetus
Right ascension01h 08m 38.771s[1]
Declination+01° 35′ 00.317″[1]
Redshift2.099000[1]
Heliocentric radial velocity629,264 km/s
Distance10.663 Gly (3.269 Mpc)
Apparent magnitude (V)18.39
Apparent magnitude (B)18.54
Characteristics
TypeHPQ, FSRQ; blazar[1]
Notable featuresGamma-ray blazar
Other designations
PKS 0106+01, PC 0106+0119, LEDA 2818340, PKS B0106+013, OC +012, PB 06280, IRCF J010838.7+013500, WMAP 081, G4Jy 0125, 0106+013[1]

4C +01.02 is a blazar[2] located in the constellation of Cetus. It has a high redshift of (z) 2.099,[3][4] with its distance estimated to be 10.663 billion light-years.[1] It was first discovered as a faint astronomical radio source by astronomers in 1965 and subsequently identified with its quasi-stellar counterpart.[5] This object hosts a superluminal jet[6] and has a radio spectrum that is classified as flat.[3][7]

Description

[edit]

4C +01.02 is found to be violently variable on the electromagnetic spectrum with its bright state exceeding 1050 erg s-1.[8] It is known to display several gamma ray outbursts which were detected on 14 September, 2013 and on December 20, 2014.[9][10] When shown on a 7-day gamma-ray light curve, 4C +01.02 showed long periods of flaring activity between September 23, 2014 and August 24, 2017 while the 2-day light curve revealed there are 14 flaring components showing the greatest possible integral flux of (2.5 ± 0.2) x 10-6 ph cm-2 s-1. A short variability was also identified, which was 0.66 ± 0.08 days.[3] Additional gamma-ray activity was observed by Large Area Telescope in March and September 2022.[11][12] Simultaneously, 4C +01.02 also reached high optical state in the same month.[13]

4C +01.02 is classified as a core-dominated quasar. It has a radio core measuring a size of 2 milliarcseconds.[14] There is a much weaker feature located southwest from the core.[15] A strong jet can be seen pointing in the direction of south, displaying a magnetic field which is found parallel with the jet's direction via a 8.5 GHz radio image.[16] When observed by Hubble and Chandra X-ray Observatory, the jet displays X-ray emission that follows its trajectory in an S-shaped path and subsequently becoming brighter.[17] Superluminal motion was also detected in the jet components.[18]

The central supermassive black hole mass of 4C +01.02 is estimated to be 3 x 109 Mʘ based on the constrainment of its accretion disk component.[19] Additionally in 2024, its gamma emission was found displaying quasi-periodic oscillation with a period of either 253 or 286 days.[20][21]

References

[edit]
  1. ^ a b c d e f "NED search results for 4C +01.02". NASA/IPAC Extragalactic Database. Retrieved 2025-05-24.
  2. ^ Britto, Richard; on behalf of the Fermi-LAT Collaboration; Böttcher, Markus; Schutte, Hester; Falcone, Abe; Marais, Johannes Petrus; van Soelen, Brian; Buckley, David (2018-11-08), "Studies of optical/gamma-ray flares of blazar 4C+01.02: recent updates from the 2016-2017 observations", Proceedings of 5th Annual Conference on High Energy Astrophysics in Southern Africa — PoS(HEASA2017), vol. 319, SISSA Medialab, p. 013, doi:10.22323/1.319.0013, retrieved 2025-05-24
  3. ^ a b c Malik, Zahoor; Shah, Zahir; Sahayanathan, Sunder; Iqbal, Naseer; Manzoor, Aaqib (2022-08-11). "Multiwavelength study of blazar 4C + 01.02 during its long-term flaring activity in 2014–2017". Monthly Notices of the Royal Astronomical Society. 514 (3): 4259–4269. doi:10.1093/mnras/stac1616. ISSN 0035-8711.
  4. ^ Sharma, Ajay; Kamaram, Sushanth Reddy; Prince, Raj; Khatoon, Rukaiya; Bose, Debanjan (2023-11-06). "Probing the disc–jet coupling in S4 0954+65, PKS 0903−57, and 4C +01.02 with γ-rays". Monthly Notices of the Royal Astronomical Society. 527 (2): 2672–2686. doi:10.1093/mnras/stad3399. ISSN 0035-8711.
  5. ^ Bolton, J. G.; Clarke, Margaret E.; Sandage, Allan; Véron, P. (October 1965). "Identifications of Six Faint Radio Sources with Quasi-Stellar Objects". The Astrophysical Journal. 142: 1289. Bibcode:1965ApJ...142.1289B. doi:10.1086/148409. ISSN 0004-637X.
  6. ^ Shen, Zhi-qiang; Wan, Tong-shan; Hong, Xiao-yu (1997-07-01). "Observations of the superluminal source 0106+013". Chinese Astronomy and Astrophysics. 21 (3): 265–268. doi:10.1016/S0275-1062(97)00035-0. ISSN 0275-1062.
  7. ^ Mukherjee, Shruti; Agarwal, Sushmita; Shukla, Amit (January 2024). "Study the long-term temporal & spectral behavior of FSRQ 4C+01.02". 42nd Meeting of the Astronomical Society of India (ASI). 42: P151. Bibcode:2024asi..confP.151M.
  8. ^ Sahakyan, N; Harutyunyan, G; Gasparyan, S; Israyelyan, D (2024-03-11). "Broad-band study of gamma-ray blazars at redshifts z = 2.0–2.5". Monthly Notices of the Royal Astronomical Society. 528 (4): 5990–6009. doi:10.1093/mnras/stae273. ISSN 0035-8711.
  9. ^ Buson, S. (2013). "Fermi LAT detection of a GeV flare from 4C +01.02". The Astronomer's Telegram. Retrieved 2025-05-24.
  10. ^ Ciprini, Stefano (2014). "Fermi-LAT detection of a GeV flare from the distant blazar 4C +01.02 (PKS 0106+01)". The Astronomer's Telegram. Retrieved 2025-05-24.
  11. ^ Principe, G.; Garrappa, S. (March 2022). "Fermi-LAT detection of the first flaring activity from the FSRQ PKS 1954-388 and an enhanced gamma-ray activity from the high redshift blazar 4C +01.02". The Astronomer's Telegram. 15274: 1. Bibcode:2022ATel15274....1P.
  12. ^ Agarwal, Sushmita; Shukla, Amit (September 2022). "Swift XRT observations of the high redshift (z=2.1) flat spectrum radio quasar 4C+01.02". The Astronomer's Telegram. 15588: 1. Bibcode:2022ATel15588....1A.
  13. ^ Strigachev, Anton; Bachev, Rumen (2022). "Recent optical observations of flaring blazars: 3C 66A and 4C+01.02". The Astronomer's Telegram. Retrieved 2025-05-24.
  14. ^ Dodson, R.; Fomalont, E. B.; Wiik, K.; Horiuchi, S.; Hirabayashi, H.; Edwards, P. G.; Murata, Y.; Asaki, Y.; Moellenbrock, G. A.; Scott, W. K.; Taylor, A. R.; Gurvits, L. I.; Paragi, Z.; Frey, S.; Shen, Z.-Q. (2008-04-01). "The VSOP 5 GHz Active Galactic Nucleus Survey. V. Imaging Results for the Remaining 140 Sources". The Astrophysical Journal Supplement Series. 175 (2): 314. doi:10.1086/525025. ISSN 0067-0049.
  15. ^ Fomalont, E. B.; Frey, S.; Paragi, Z.; Gurvits, L. I.; Scott, W. K.; Taylor, A. R.; Edwards, P. G.; Hirabayashi, H. (November 2000). "The VSOP 5 GHz Continuum Survey: The Prelaunch VLBA Observations". The Astrophysical Journal Supplement Series. 131 (1): 95–183. doi:10.1086/317368. ISSN 0067-0049.
  16. ^ Punsly, Brian (April 1995). "The Extended Morphology of Ultraluminous Radio Cores". The Astronomical Journal. 109: 1555. doi:10.1086/117385. ISSN 0004-6256.
  17. ^ Kharb, P.; Lister, M. L.; Marshall, H. L.; Hogan, B. S. (2012-03-09). "CHANDRA AND HST IMAGING OF THE QUASARS PKS B0106+013 AND 3C 345: INVERSE COMPTON X-RAYS AND MAGNETIZED JETS". The Astrophysical Journal. 748 (2): 81. doi:10.1088/0004-637x/748/2/81. ISSN 0004-637X.
  18. ^ Wehrle, Ann E.; Cohen, Marshall H.; Unwin, Stephen C. (March 1990). "Detection of Superluminal Motion in the Core-dominated Quasar 0106+013". The Astrophysical Journal. 351: L1. Bibcode:1990ApJ...351L...1W. doi:10.1086/185665. ISSN 0004-637X.
  19. ^ Schutte, Hester M.; Britto, Richard J.; Böttcher, Markus; van Soelen, Brian; Marais, Johannes P.; Kaur, Amanpreet; Falcone, Abraham D.; Buckley, David A. H.; Rajoelimanana, Andry F.; Cooper, Justin (2022-02-01). "Modeling the Spectral Energy Distributions and Spectropolarimetry of Blazars—Application to 4C+01.02 in 2016–2017*". The Astrophysical Journal. 925 (2): 139. doi:10.3847/1538-4357/ac3cb5. ISSN 0004-637X.
  20. ^ Chen, Junping; Yu, Jinjie; Huang, Weitian; Ding, Nan (2024-02-08). "Transient quasi-periodic oscillations in the gamma-ray light curves of bright blazars". Monthly Notices of the Royal Astronomical Society. 528 (4): 6807–6822. doi:10.1093/mnras/stae416. ISSN 0035-8711.
  21. ^ Ren, Helena X.; Cerruti, Matteo; Sahakyan, Narek (2023-02-25), "Quasi-periodic oscillations in the γ -ray light curves of bright active galactic nuclei", Astronomy & Astrophysics, 672: A86, arXiv:2204.13051, doi:10.1051/0004-6361/202244754, retrieved 2025-05-24
[edit]
Retrieved from "https://en.wikipedia.org/w/index.php?title=4C_%2B01.02&oldid=1291914734"