PKS 0637-752

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PKS 0637-752
PKS 0637-752- NASA Unveils First Images From Chandra X-Ray Observatory (1999-0064 - 0064 xray).tiff
Chandra X-ray Observatory image of PKS 0637-752
Observation data (J2000.0 epoch)
Constellation Mensa
Right ascension 06h 35m 46.5s
Declination −75° 16′ 16.8″
Redshift 0.653000
Heliocentric radial velocity 195,765 km/s
Distance 6.0 Gly
Apparent magnitude  (V)0.34
Apparent magnitude  (B)0.26
Characteristics
Type FRSQ, Blazar
Notable featuresX-ray jet
Other designations
IRAS F06374-7513, PGC 2824867, MRC 0637-752, 2E 1720, OCARS 0637-752

PKS 0637-752 is a quasar located six billion light years in the constellation of Mensa. [1] It is noted for having a bright and largest astrophysical jet at redshift of z = 0.651. [2] [3] Discovered by Einstein Observatory in 1980 through X-rays, [4] PKS 0637-752 was the first celestial object to be observed by Chandra X-ray Observatory upon its commissioning in July 23, 1999. [5]

Contents

Characteristics

PKS 0637-752 contains an active galactic nucleus. It is classified a blazar, a type of an active galaxy with a relativistic jet pointing towards Earth's direction. [6] [7] Like other quasars, PKS 0637-752 is considered luminous, powering up 10 trillion times the sun, with a supermassive black hole in its center. [8] [9]

X-ray jet

PKS 0637-752 contains a high γ-ray flux [10] X-ray jet [11] [12] studied by Hubble Space Telescope [13] and Spitzer. [14] The jet extends ≥100 kiloparsecs wide and has a luminosity of ~1044.6 ergs -1. It produces X-ray emission through inverse Compton scattering from the cosmic microwave background. [15]

Further observations from Hubble also found three small knots occurring concurrently with the X-ray emission and peak radio. [2] According to observations made by Australia Telescope Compact Array, these knots are shown to be quasi-periodic with a separation gap of ~1.1 arcsecs. Using two class models, astronomers calculated the jet power of PKS 0637-752 to be Q ~ 1046 erg/s and the jet engine modulation to be 2 x 103 yr < \tau < 3x 105 yr. Such evidence, proves the jet structure in the quasar might result from an unstable accretion disk, causing limit cycle behavior. [16]

Related Research Articles

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<span class="mw-page-title-main">1ES 1101-232</span> Galactic nucleus in a distant galaxy cluster in the constellation Crater

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<span class="mw-page-title-main">4C +71.07</span> Quasar in the constellation Ursa Major

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<span class="mw-page-title-main">PKS 0537-286</span> Quasar in the constellation Columba

PKS 0537-286, also known as QSO B0537-286, is a quasar located in the constellation Columba. With a redshift of 3.104, the object is located 11.4 billion light years away and belongs to the flat spectrum radio quasar blazar subclass (FSQR). It is one of the most luminous known high-redshift quasars.

<span class="mw-page-title-main">PKS 0438-436</span> Quasar in the constellation Caelum

PKS 0438-436, also known as PKS J0440-4333, is a quasar located in constellation Caelum. With a high redshift of 2.86, the object is located 11.2 billion light-years from Earth and is classified as a blazar due to its flat-spectrum radio source, (in terms of the flux density as with α < 0.5 and its optical polarization.

<span class="mw-page-title-main">PKS 2215+020</span> Quasar in the constellation Aquarius

PKS 2215+020, known as PMN J2217+0220, is a quasar located in the Aquarius constellation. Its redshift is 3.570000, meaning the object is located 11.6 billion light-years away from Earth. It is classified as a flat spectrum radio source quasar.

<span class="mw-page-title-main">PKS 2126-158</span> Quasar in the constellation Capricornus

PKS 2126-158, also known as PKS 2126-15, is a quasar located in Capricornus. It has a redshift of 3.268000, which corresponds to the distance of 11.5 billion light years. It is classified as a gigahertz peaked-spectrum quasar (GPS) with a flat-spectrum radio source and a blazar, a type of active galaxy shooting an astrophysical jet towards Earth.

<span class="mw-page-title-main">PKS 0451-28</span> Quasar in the constellation Caelum

PKS 0451-28, also known as MRC 0451-282, is a quasar located in the constellation of Caelum. Its redshift is 2.55, estimating the object to be located nearly 10.8 billion light-years away from Earth.

<span class="mw-page-title-main">PKS 1144-379</span> Quasar in the constellation Centaurus

PKS 1144-379 also known as PKS B1144-379, is a quasar located in the constellation of Centaurus. At the redshift of 1.048, the object is located nearly 8 billion light-years from Earth.

<span class="mw-page-title-main">PKS 1402-012</span> Quasar in the constellation of Virgo

PKS 1402-012, also known as UM 632, is a quasar located in the constellation of Virgo. With a redshift of 2.51, the object is located 10.7 billion light-years from Earth.

<span class="mw-page-title-main">PKS 1402+044</span> Quasar in the constellation of Virgo

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.

<span class="mw-page-title-main">PKS 0805-07</span> Quasar in the constellation of Monoceros

PKS 0805-07 also known as PMN J0808-0751 and 4FGL J0808.2-0751, is a quasar located in the constellation of Monoceros. With a redshift of 1.83, light has taken at least 10 billion light-years to reach Earth.

References

  1. ↑ "NED Search Results for PKS 0637-752". ned.ipac.caltech.edu. Retrieved 2024-09-04.
  2. 1 2 Schwartz, D. A.; Marshall, H. L.; Lovell, J. E. J.; Piner, B. G.; Tingay, S. J.; Birkinshaw, M.; Chartas, G.; Elvis, M.; Feigelson, E. D.; Ghosh, K. K.; Harris, D. E.; Hirabayashi, H.; Hooper, E. J.; Jauncey, D. L.; Lanzetta, K. M. (2000-09-10). "[ITAL]Chandra[/ITAL] Discovery of a 100 kiloparsec X-Ray Jet in PKS 0637−752". The Astrophysical Journal. 540 (2): L69–L72. doi:10.1086/312875. ISSN   0004-637X.
  3. ↑ Lovell, J. E. J.; Tingay, S. J.; Piner, B. G.; Jauncey, D. L.; Preston, R. A.; Murphy, D. W.; McCulloch, P. M.; Costa, M. E.; Nicolson, G.; Hirabayashi, H.; Reynolds, J. E.; Tzioumis, A. K.; Jones, D. L.; Lister, M. L.; Meier, D. L.; Birkinshaw, M.; Chartas, G.; Feigleson, E. D.; Garmire, G. P.; Ghosh, K. K.; Marshall, H. L.; Mathur, S.; Sambruna, R. M.; Schwartz, D. A.; Tucker, W. H.; Wilkes, B.; Worrall, D. M. (2000). "VSOP and ATCA Observations of PKS 0637-752". Astrophysical Phenomena Revealed by Space Vlbi: 215. Bibcode:2000aprs.conf..215L . Retrieved 2024-09-04.
  4. ↑ Elvis, M.; Fabbiano, G. (1984-05-01). "X-ray and UV observations of two radio-bright quasars". The Astrophysical Journal. 280: 91–97. Bibcode:1984ApJ...280...91E. doi:10.1086/161970. ISSN   0004-637X.
  5. ↑ Chartas, G.; Worrall, D. M.; Birkinshaw, M.; Cresitello-Dittmar, M.; Cui, W.; Ghosh, K. K.; Harris, D. E.; Hooper, E. J.; Jauncey, D. L.; Kim, D.-W.; Lovell, J.; Mathur, S.; Schwartz, D. A.; Tingay, S. J.; Virani, S. N. (2000-10-20). "TheChandra X-Ray ObservatoryResolves the X-Ray Morphology and Spectra of a Jet in PKS 0637−752". The Astrophysical Journal. 542 (2): 655–666. doi:10.1086/317049. ISSN   0004-637X.
  6. ↑ Podjed, Stephanie A.; Hickox, Ryan C.; Isler, Jedidah C.; Böttcher, Markus; Schutte, Hester M. (2024-06-01). "Optical Spectropolarimetric Variability Properties in Blazars PKS 0637–75 and PKS 1510–089". The Astrophysical Journal. 968 (2): 130. doi: 10.3847/1538-4357/ad4111 . ISSN   0004-637X.
  7. ↑ Ghisellini, G.; Tavecchio, F.; Foschini, L.; Ghirlanda, G.; Maraschi, L.; Celotti, A. (2009-11-26). "General physical properties of bright Fermi blazars". Monthly Notices of the Royal Astronomical Society. 402 (1): 497–518. doi: 10.1111/j.1365-2966.2009.15898.x . ISSN   0035-8711.
  8. ↑ "Chandra Press Room :: Fact Sheet: PKS 0637-752". chandra.si.edu. Retrieved 2024-09-04.
  9. ↑ "Distant Quasar Ejects 2 Million Light-Year Long Jet of Cosmic Material". SciTechDaily. October 23, 2012.
  10. ↑ Lucchini, M.; Tavecchio, F.; Ghisellini, G. (2016-12-22). "Revisiting the EC/CMB model for extragalactic large scale jets". Monthly Notices of the Royal Astronomical Society: stw3316. doi: 10.1093/mnras/stw3316 . ISSN   0035-8711.
  11. ↑ Bhattacharyya, Wrijupan; Gupta, Nayantara (2016-02-01). "Proton Synchrotron Radiation from Extended Jets of PKS 0637-752 and 3C 273". The Astrophysical Journal. 817 (2): 121. arXiv: 1511.00258 . Bibcode:2016ApJ...817..121B. doi: 10.3847/0004-637X/817/2/121 . ISSN   0004-637X.
  12. ↑ Edwards, Philip G.; Piner, B. Glenn; Tingay, Steven J.; Lovell, James E. J.; Kataoka, Jun; Ojha, Roopesh; Murata, Yasuhiro (2006-04-01). "The Parsec-Scale Jet of PKS 0637-752". Publications of the Astronomical Society of Japan. 58: 233–241. Bibcode:2006PASJ...58..233E. doi:10.1093/pasj/58.2.233. ISSN   0004-6264.
  13. ↑ Mehta, Kushal T.; Georganopoulos, Markos; Perlman, Eric S.; Padgett, Charles A.; Chartas, George (2009-01-01). "HST observations of the quasar PKS 0637-752: equipartition electron-proton jet from the most complete spectral coverage to date". The Astrophysical Journal. 690 (2): 1706–1714. arXiv: 0809.1608 . doi:10.1088/0004-637X/690/2/1706. ISSN   0004-637X.
  14. ↑ Uchiyama, Yasunobu; Urry, C. Megan; Van Duyne, Jeffrey; Cheung, C. C.; Sambruna, Rita M.; Takahashi, Tadayuki; Tavecchio, Fabrizio; Maraschi, Laura (2005-09-14). "Spitzer IRAC Imaging of the Relativistic Jet from Superluminal Quasar PKS 0637-752". The Astrophysical Journal. 631 (2): L113–L116. doi:10.1086/497426. ISSN   0004-637X.
  15. ↑ Tavecchio, Fabrizio; Maraschi, Laura; Sambruna, Rita M.; Urry, C. Megan (2000-11-20). "The X-Ray Jet of PKS 0637−752: Inverse Compton Radiation from the Cosmic Microwave Background?". The Astrophysical Journal. 544 (1): L23–L26. doi:10.1086/317292. ISSN   0004-637X.
  16. ↑ Kusunose, Masaaki; Takahara, Fumio (2017-01-16). "A Photo-Hadronic Model of the Large-Scale Jet of PKS 0637-752". The Astrophysical Journal. 835 (1): 20. doi: 10.3847/1538-4357/835/1/20 . ISSN   0004-637X.
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