TXS 0035+227

TXS 0035+277
SDSS image of TXS 0035+227
Observation data (J2000.0 epoch)
ConstellationAndromeda
Right ascension00h 38m 08.09s[1]
Declination+23° 03′ 28.55″[1]
Redshift0.096000[1]
Heliocentric radial velocity28,780 ± 600 km/s[1]
Distance1,391.6 ± 105.6 Mly (426.67 ± 32.38 Mpc)[1]
magnitude (J)13.91[1]
Characteristics
TypeWLRG Sy2[1]
Size~390,600 ly (119.77 kpc) (estimated)[1]
Other designations
NVSS J003808+230327, 2MASX J00380809+2303286, B20035+22, IVS B0035+227, LEDA 1680673

TXS 0035+227 is a low-excitation radio galaxy[2] located in the constellation of Andromeda. The redshift of the object is (z) 0.096[1] and it was first discovered as a flat spectrum radio source in July 1996 and thus identified with a galaxy counterpart, with a total optical polarization of 84%.[3]

Description

TXS 0035+227 is classified as a weak emission-line radio galaxy with weak emission lines in its optical spectrum.[4][5] It is also categorized as a compact symmetrical object (CSO)[6][7] with a linear size that is estimated to be 21.8 parsecs and a kinematic age of 567 years.[8] The source is described as point-like on kiloparsec scales, with a central component based on radio imaging made with the Very Long Baseline Array (VLBA).[9] The radio jet size is estimated to be only 0.015 kiloparsecs in length.[2] The radio luminosity at 5 GHz is found to be 24.72 W Hz−1.[10]

The supermassive black hole in the center of TXS 0035+227 is estimated to be 8.4 M☉ with the total bolometric disk luminosity of 5.98 × 1044 erg s−1.[2][11] A luminosity spectral density at 1.4 GHz frequencies has been calculated to be 12.89 × 1024 W Hz−1. The radio core flux density is 18 mJy and has a monochromatic luminosity of 1.6E+40 erg s−1.[11] The radio spectra index appears to be steep between the frequencies of 8 and 43 GHz, with the galaxy's nuclear region described to be of a type 2 Seyfert galaxy based on a line profile fitting analysis. The lines show a full width at half maximum (FWHM) of 1,078 kilometers per seconds.[12]

References

  1. 1 2 3 4 5 6 7 8 9 "NED Search results for TXS 0035+227". NASA/IPAC Extragalactic Database. Retrieved 2026-05-17.
  2. 1 2 3 Son, Donghoon; Woo, Jong-Hak; Kim, Sang Chul; Fu, Hai; Kawakatu, Nozomu; Bennert, Vardha N.; Nagao, Tohru; Park, Daeseong (2012-09-12). "ACCRETION PROPERTIES OF HIGH- AND LOW-EXCITATION YOUNG RADIO GALAXIES". The Astrophysical Journal. 757 (2): 140. arXiv:1208.2025. Bibcode:2012ApJ...757..140S. doi:10.1088/0004-637x/757/2/140. ISSN 0004-637X.
  3. ↑ Marcha, M. J. M.; Browne, I. W. A.; Impey, C. D.; Smith, P. S. (1996-07-11). "Optical spectroscopy and polarization of a new sample of optically bright flat radio spectrum sources" (PDF). Monthly Notices of the Royal Astronomical Society. 281 (2): 425–448. doi:10.1093/mnras/281.2.425. ISSN 0035-8711.
  4. ↑ Dennett-Thorpe, J.; Marcha, M. J. (2000-08-22), Flat radio-spectrum galaxies and BLLacs: Part I: core properties, arXiv:astro-ph/0008343, arXiv:astro-ph/0008343
  5. ↑ Bondi, M.; Marchã, M. J. M.; Dallacasa, D.; Stanghellini, C. (August 2001). "Intermediate BL Lac objects". Monthly Notices of the Royal Astronomical Society. 325 (3): 1109–1123. Bibcode:2001MNRAS.325.1109B. doi:10.1046/j.1365-8711.2001.04519.x.
  6. ↑ Vries, N. de; Snellen, I. a. G.; Schilizzi, R. T.; Mack, K.-H.; Kaiser, C. R. (2009-05-01). "VLBI observations of the CORALZ sample: young radio sources at low redshift" (PDF). Astronomy & Astrophysics. 498 (2): 641–659. arXiv:0901.2124. Bibcode:2009A&A...498..641D. doi:10.1051/0004-6361/200811145. ISSN 0004-6361.
  7. ↑ Siemiginowska, Aneta; Sobolewska, Małgosia; Migliori, Giulia; Guainazzi, Matteo; Hardcastle, Martin; Ostorero, Luisa; Stawarz, Łukasz (2016-05-20). "X-Ray Properties of the Youngest Radio Sources and Their Environments". The Astrophysical Journal. 823 (1): 57. arXiv:1603.00947. Bibcode:2016ApJ...823...57S. doi:10.3847/0004-637x/823/1/57. ISSN 0004-637X.
  8. ↑ Polatidis, A. G.; Conway, J. E. (2003). "Proper Motions in Compact Symmetric Objects". Publications of the Astronomical Society of Australia. 20 (1): 69–74. arXiv:astro-ph/0212122. Bibcode:2003PASA...20...69P. doi:10.1071/as02053. ISSN 1323-3580.
  9. ↑ Bondi, M.; Marchã, M. J. M.; Polatidis, A.; Dallacasa, D.; Stanghellini, C.; Antón, S. (July 2004). "VLBA polarization observations of BL Lac objects and passive elliptical galaxies". Monthly Notices of the Royal Astronomical Society. 352 (1): 112–124. Bibcode:2004MNRAS.352..112B. doi:10.1111/j.1365-2966.2004.07903.x. ISSN 0035-8711.
  10. ↑ Principe, Giacomo; Venere, Leonardo Di; Orienti, Monica; Migliori, Giulia; D'Ammando, Filippo; Mazziotta, Mario Nicola; Giroletti, Marcello (2021-09-16). "Gamma-rays from young radio galaxies and quasars". Monthly Notices of the Royal Astronomical Society. 507 (3): 4564–4583. arXiv:2107.12963. doi:10.1093/mnras/stab2357. ISSN 0035-8711.
  11. 1 2 Wójtowicz, A.; Stawarz, Ł.; Cheung, C. C.; Ostorero, L.; Kosmaczewski, E.; Siemiginowska, A. (2020-04-01). "On the Jet Production Efficiency in a Sample of the Youngest Radio Galaxies". The Astrophysical Journal. 892 (2): 116. arXiv:1911.01197. Bibcode:2020ApJ...892..116W. doi:10.3847/1538-4357/ab7930. ISSN 0004-637X.
  12. ↑ Gonçalves, A. C.; Roos, M. Serote (2004-01-01). "The nuclear region of low luminosity flat radio spectrum sources - II. Emission-line spectra" (PDF). Astronomy & Astrophysics. 413 (1): 97–105. arXiv:astro-ph/0309620. Bibcode:2004A&A...413...97G. doi:10.1051/0004-6361:20031494. ISSN 0004-6361.
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