Wikipedia

RX J1633.3 4718

RX J1633.3 4718 (RX J1633 4718) known as RXS J16333 4718 according to VLBI Network observations,[2] is a narrow-line Seyfert 1 galaxy,[3][4] located in the constellation of Hercules. It has a redshift of (z) 0.116[5] and is located 1.75 billion light years from Earth.[1] The first known reference to this galaxy comes from a radio source which was identified in 1995 in the IRAS catalogue as F16319 4725.[6]

RX J1633.3 4718
The narrow-line Seyfert 1 galaxy RX J1633.3 4718
Observation data (J2000.0 epoch)
ConstellationHercules
Right ascension16h 33m 23.580s
Declination 47° 18′ 58.929″
Redshift0.115761
Heliocentric radial velocity34,704 km/s
Distance1.753 Gly (537.47 Mpc)
Apparent magnitude (V)17.35
Apparent magnitude (B)17.77
Characteristics
TypeSy 1
Apparent size (V)87.63 kiloparsecs (285,800 light-years)
(diameter; 2MASS K-band total isophote)[1]
Other designations
LEDA 140641, RX J1633.3 4719, IRAS F16319 4725, EF B1631 4725, SDSS J163323.58 471858.9, RXS J16633 4718

Description

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RX J1633.3 4718 contains a radio loud active galactic nucleus (AGN) with a measured radio loudness parameter of R5 = fv(5 GHz)/fv(4400Å) > 100.[5] Furthermore, the AGN is hosted in a disk galaxy[7] found interacting with a starburst galaxy.[8] The two nuclei of both galaxies are about 8 kiloparsecs from each other.[9]

Two unique components are found in RX J1633.3 4718, mainly a core component and a north component. Both of the components are connected with the two galaxies in the interacting system, with measured flux densities of 24.48 mJy and 0.79 mJy.[9]

The core component is unresolved. It has an inverted radio spectrum whereas the spectral index is found steep.[9] The core component is suggested to be significantly variable, hinting at the presence of jet activity in RX J1633.3 4718. This is further confirmed by the jet's high brightness temperature of 1011.3 K[10] and parsec-scale core-jet radio morphology when seen in high resolution observations at 1.7 and 5 GHz respectively.[9][4] The north component on the other hand, is fainter and located at a position angle of 352°, away from the core by 3.8 arcsec.[11]

The accretion disk of RX J1633.3 4718 is shown to have ultrasoft excess X-ray emission. It is lower than 0.5 KeV with the temperature of the galaxy's disk estimated to be 40 electronvolts based on a disc model for soft excess. The mass of the black hole in RX J1633 4718 is estimated to be 3 x 106 Mʘ[8] while a bolometric luminosity of Lbol ≈ 1.51 x 1044 erg s-1 was derived from an unabsorbed flux measurement in a 0.001-100 KeV energy band.[5]

References

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  1. ^ a b "By Name NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 2024-10-25.
  2. ^ Gu, Minfeng (2018-07-27). "VLBI study of the jets in radio-loud narrow-line Seyfert 1 galaxies". Proceedings of Revisiting Narrow-line Seyfert 1 Galaxies and Their Place in the Universe — PoS(NLS1-2018). Trieste, Italy: Sissa Medialab: 025. arXiv:0704.3836. Bibcode:2018rnls.confE..25G. doi:10.22323/1.328.0025.
  3. ^ Wisotzki, L.; Bade, N. (1997-04-01). "Spectroscopy of narrow emission line X-ray galaxies". Astronomy and Astrophysics. 320: 395–398. Bibcode:1997A&A...320..395W. ISSN 0004-6361.395-398&rft.date=1997-04-01&rft.issn=0004-6361&rft_id=info:bibcode/1997A&A...320..395W&rft.aulast=Wisotzki&rft.aufirst=L.&rft.au=Bade, N.&rft_id=https://articles.adsabs.harvard.edu/pdf/1997A%26A...320..395W&rfr_id=info:sid/en.wikipedia.org:RX J1633.3+4718" class="Z3988">
  4. ^ a b Doi, Akihiro; Asada, Keiichi; Nagai, Hiroshi (2011-08-18). "Very Long Baseline Array Imaging of Parsec-Scale Jet Structures in Radio-Loud Narrow-Line Seyfert 1 Galaxies". The Astrophysical Journal. 738 (2): 126. arXiv:1107.5117. Bibcode:2011ApJ...738..126D. doi:10.1088/0004-637x/738/2/126. ISSN 0004-637X.
  5. ^ a b c Mallick, Labani; Dewangan, G. C.; Gandhi, P.; Misra, R.; Kembhavi, A. K. (2016-05-06). "Accretion disc–corona and jet emission from the radio-loud narrow-line Seyfert 1 galaxy RX J1633.3 4719". Monthly Notices of the Royal Astronomical Society. 460 (2): 1705–1715. arXiv:1604.03320. doi:10.1093/mnras/stw1073. ISSN 0035-8711.1705-1715&rft.date=2016-05-06&rft_id=info:arxiv/1604.03320&rft.issn=0035-8711&rft_id=info:doi/10.1093/mnras/stw1073&rft.aulast=Mallick&rft.aufirst=Labani&rft.au=Dewangan, G. C.&rft.au=Gandhi, P.&rft.au=Misra, R.&rft.au=Kembhavi, A. K.&rft_id=https://doi.org/10.1093%2Fmnras%2Fstw1073&rfr_id=info:sid/en.wikipedia.org:RX J1633.3+4718" class="Z3988">
  6. ^ Condon, J. J.; Anderson, E.; Broderick, J. J. (June 1995). "Radio Identifications of Extragalactic IRAS Sources". The Astronomical Journal. 109: 2318. Bibcode:1995AJ....109.2318C. doi:10.1086/117454. ISSN 0004-6256.
  7. ^ Olguín-Iglesias, Alejandro; Kotilainen, Jari; Chavushyan, Vahram (2019-12-23). "The disc-like host galaxies of radio-loud narrow-line Seyfert 1s". Monthly Notices of the Royal Astronomical Society. 492 (1): 1450–1464. arXiv:1912.02746. doi:10.1093/mnras/stz3549. ISSN 0035-8711.1450-1464&rft.date=2019-12-23&rft_id=info:arxiv/1912.02746&rft.issn=0035-8711&rft_id=info:doi/10.1093/mnras/stz3549&rft.aulast=Olguín-Iglesias&rft.aufirst=Alejandro&rft.au=Kotilainen, Jari&rft.au=Chavushyan, Vahram&rft_id=https://doi.org/10.1093%2Fmnras%2Fstz3549&rfr_id=info:sid/en.wikipedia.org:RX J1633.3+4718" class="Z3988">
  8. ^ a b Yuan, W.; Liu, B. F.; Zhou, H.; Wang, T. G. (2010-10-12). "X-Ray Observational Signature of a Black Hole Accretion Disk in an Active Galactic Nucleus RX J1633 4718". The Astrophysical Journal. 723 (1): 508–513. arXiv:1009.2808. Bibcode:2010ApJ...723..508Y. doi:10.1088/0004-637x/723/1/508. ISSN 0004-637X.508-513&rft.date=2010-10-12&rft_id=info:arxiv/1009.2808&rft.issn=0004-637X&rft_id=info:doi/10.1088/0004-637x/723/1/508&rft_id=info:bibcode/2010ApJ...723..508Y&rft.aulast=Yuan&rft.aufirst=W.&rft.au=Liu, B. F.&rft.au=Zhou, H.&rft.au=Wang, T. G.&rft_id=http://dx.doi.org/10.1088/0004-637x/723/1/508&rfr_id=info:sid/en.wikipedia.org:RX J1633.3+4718" class="Z3988">
  9. ^ a b c d Järvelä, E.; Dahale, R.; Crepaldi, L.; Berton, M.; Congiu, E.; Antonucci, R. (2022-01-25). "Unravelling the origin of extended radio emission in narrow-line Seyfert 1 galaxies with the JVLA". Astronomy & Astrophysics. 658: A12. arXiv:2109.07841. Bibcode:2022A&A...658A..12J. doi:10.1051/0004-6361/202141698. ISSN 0004-6361.
  10. ^ Gu, Minfeng; Chen, Yongjun (2010-05-11). "The Compact Radio Structure of Radio-Loud Narrow Line Seyfert 1 Galaxies". The Astronomical Journal. 139 (6): 2612–2619. arXiv:1004.3058. Bibcode:2010AJ....139.2612G. doi:10.1088/0004-6256/139/6/2612. ISSN 0004-6256.2612-2619&rft.date=2010-05-11&rft_id=info:arxiv/1004.3058&rft.issn=0004-6256&rft_id=info:doi/10.1088/0004-6256/139/6/2612&rft_id=info:bibcode/2010AJ....139.2612G&rft.aulast=Gu&rft.aufirst=Minfeng&rft.au=Chen, Yongjun&rft_id=http://dx.doi.org/10.1088/0004-6256/139/6/2612&rfr_id=info:sid/en.wikipedia.org:RX J1633.3+4718" class="Z3988">
  11. ^ Berton, M.; Congiu, E.; Järvelä, E.; Antonucci, R.; Kharb, P.; Lister, M. L.; Tarchi, A.; Caccianiga, A.; Chen, S.; Foschini, L.; Lähteenmäki, A.; Richards, J. L.; Ciroi, S.; Cracco, V.; Frezzato, M. (2018-06-01). "Radio-emitting narrow-line Seyfert 1 galaxies in the JVLA perspective". Astronomy & Astrophysics. 614: A87. arXiv:1801.03519. Bibcode:2018A&A...614A..87B. doi:10.1051/0004-6361/201832612. ISSN 0004-6361.
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