Astronomy:8C 1241+735

From HandWiki
8C 1241+735
Pan-STARRS image of the radio galaxy 8C 1241+735
Observation data (J2000 epoch)
ConstellationDraco
Right ascension 12h 43m 11.21s[1]
Declination+73° 15′ 59.25″[1]
Redshift0.075000[1]
Helio radial velocity22484 ± 300 km/s[1]
Distance1,088.4 ± 78.9 Mly (333.70 ± 24.18 Mpc)[1]
Characteristics
TypeWLRG LINER[1]
Size~341,000 ly (104.4 kpc) (estimated)[1]
Other designations
2MASX J12431131+7315593, 1241+735, LEDA 3086167, IRCF J124311.2+731559, NPM1G +73.0086, NVSS J124310+731600[1]

8C 1241+735 is a radio galaxy located in the constellation of Draco. The redshift of the galaxy is (z) 0.075[1] and it was first discovered as a bright astronomical radio source by astronomers in July 1996.[2] Subsequently, this object has been identified with a 17 magnitude galaxy according to a study by M. Stickel and H. Kuehr[3] and contains a radio spectrum that appears mainly flat, thus the classification of it being a flat spectrum radio source.[4][2]

Description

8C 1241+735 is a weak emission-line radio galaxy (WLRG) belonging as a member of a small galaxy group.[5][6] The host galaxy has been identified as a passive elliptical with a core-jet radio morphology.[7][4] When observed with MERLIN, it has a compact radio core described to show an extended radio component that is orientated at -30°. Radio observations made with Very Large Array (VLA) identified the component as a diffused jet knot.[4] The radio core itself, is unpolarized.[7]

A radio jet is present. The jet is described as one-sided and has an extent of 10 arcseconds from the core with an orientation of -20° based on kiloparsec scale imaging. When imaged on parsec scales, the jet has the same one-sided appearance but however, also has the same position angle like the jet on kiloparsec scales, with a total extent of 15 milliarcseconds.[7] Further studies also found the jet is also bending towards the direction of southwest and terminating at the position of a compact component at -95° from the nucleus region.[5] The jet also contains polarization by 12 percent, with its polarized radio emission being offset from the western jet edge. The direction of the electric vector position angle is parallel to the jet.[7] Further imaging also detected the galaxy contains a presence of a LINER nucleus.[8]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 "NED Search results for 8C 1241+735". https://ned.ipac.caltech.edu/byname?objname=LEDA+3086167&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1. 
  2. ↑ 2.0 2.1 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". Monthly Notices of the Royal Astronomical Society 281 (2): 425–448. doi:10.1093/mnras/281.2.425. ISSN 0035-8711. https://watermark02.silverchair.com/281-2-425.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAA1YwggNSBgkqhkiG9w0BBwagggNDMIIDPwIBADCCAzgGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQM_Xo57sXYXGc0J1MtAgEQgIIDCav72RMwUOA8J1FPen2sL2FAt_aWRZBm29aT-ucoYy4r1gZP9G6A08VZ0ieN5MYj5DJP0VUYPrJoXM6A3eh6ebYEV9oK17adEcK1f2esEwe-z72b8zpYbO78u9hL_04OFGUU1xQgyJgnPerapbbGDwSkTBK_ib2yRUY0IFSKqfOtaAJhhq5ZSoV4GYgEZQXUHBOnxmVEyo6uErm_p2ZVfyVcG6pAi-x7eYpxXpRWbvu2z9XS87V7UTYPi1gRxXpMXBC7xCKHkBYtGxp8ONVptvko-hSa5XgnTgcUGYQZ3fn1fDsa76_hx5mRQ8I5Gdjgd1sCKIH_Ikm6iccfSilz2res4SaDHbyJnqt5zIxQKEqxo7YtjJ0OHUKqLzxFpRqURdMpBH8nVgDvzUdgHjXljSARmAH5L-LKq9fr8PUn0Q7-hRDG9B0j4PTXOGZrfvRU4aVqacllwIBmtr_JqjIT9P994BPSE2nkYOXpx04ioM-7RR_NCLUU_OCQkyLr3nPzhwCCOmSOffCSC8TwcO1IcPSCFaZ9Fh2DthFUguLDn-K3jqTRgdCJ5NMcT6Aup6wKzu_2UuHF__OMCsyw6AyKCDqPIutE1dGR5h5VOlQblwiwvOKAQ3sJlpC59sOtBzbKtka6-PPF-UG9q0kovjHOr_IAHhKD-pHHoZpH3p6Riy1a06RxAMko5aGFTqKYbo7WayWuPL48mSClEJYtmp1nV68s5LsOSdZMLjPWn3OdrOk1jP8VP4kR0Q_RcsCShOEWMNW0PSY_sHzB13aJ1ws-OI16WY5u0uFbgelsXku7CTQj4zHxwqVtb22WSPIxk_yUJIwQrAj2-anAnMcMNpq7U3AuOGJhH5lfS7wx7u-4Bs-l_8o6GeDNH9ZF__Cj4Un8WqaoEhhXLqEGhIUEvkIfgoL0JnBkUZ2Zd308bmbPiP2qt4fRWe4njTHRzikolr1_1oX7a5I46Z0d3KYHvjmzbTLgpjS8nQezMVqDBajxU0VWEK_EJHIxmhwAJiX6Tg4_rNLD5kI-Nb-AZg. 
  3. ↑ Stickel, M.; Kuehr, H. (January 1996). "Optical identifications of radio sources from the 1Jy, S4 and S5 catalogues." (in en). Astronomy and Astrophysics Supplement Series 115: 11. ISSN 0365-0138. https://articles.adsabs.harvard.edu/pdf/1996A%26AS..115...11S. 
  4. ↑ 4.0 4.1 4.2 Augusto, P.; Wilkinson, P. N.; Browne, I. W. A. (October 1998). "Flat-spectrum radio sources with kpc-scale structure" (in en). Monthly Notices of the Royal Astronomical Society 299 (4): 1159–1192. doi:10.1046/j.1365-8711.1998.01871.x. ISSN 0035-8711. Bibcode: 1998MNRAS.299.1159A. 
  5. ↑ 5.0 5.1 Bondi, M.; Marchã, M. J. M.; Dallacasa, D.; Stanghellini, C. (August 2001). "Intermediate BL Lac objects" (in en). Monthly Notices of the Royal Astronomical Society 325 (3): 1109–1123. doi:10.1046/j.1365-8711.2001.04519.x. ISSN 0035-8711. Bibcode: 2001MNRAS.325.1109B. https://watermark02.silverchair.com/325-3-1109.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAA18wggNbBgkqhkiG9w0BBwagggNMMIIDSAIBADCCA0EGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMSPhvUkT4eTHV3uLrAgEQgIIDEtuzhgXOWWtX0ySqxSl26qdiQgI44RarfEvuD11lfzVtiFXUfIIRwVeqfVoKJ1rMUP7anRS90FzBZg5_YhTRCD0A6ZZK1LT96VKDEORP8-n2JurWcEbpMs-kfhM62TV-7HQ3rcTNGP5eyW1G0ZUvG12BRgAFQvPJg1w5Mb7uVuJWIylW3PuMcAvdHUXmOqGQ42K2Sz5hpmI48KIdq5RRMOqeId8P8C1Qcv3eFaTV8H5NcN0VHQ9Tw3rFw65ZhwiCG6Psy9gIA7yS9mCm4zn5zjB8KChOwEsWGuGx-ebqvE4sMjo81FquXhSI02RbAjEwlSeMzBZUeUIRmVoFh_tp93_Y3TRcuaELesvn90Rk8xVGJcSn7-AJxAoK0Nkg3BTcouiAw8ZApyezk6SCFDu2GhBJ4Ogp_8xi_XK_Otzio4OUETDWgUzOQk8wepsBd40R9pbhIumnyyi0a1v6hU3cg0O3lnzScs9deZClMLRSbuj_vc0eLcjQaTtGOzdqgNgZVBXMQbEmfCFhOCiNlnzm_gFovHp65ISp_A5r4a7DTTU33UKZ7Ra7E_TnLPCyd9x29t5Y9NDECvGxxhzH8xR5qVrU8pDOqDqDIfJHFTLYxa5sWoIvRUQa4CBhJ10uhsuvqUEOp4oHpE_ppfBGET8f0rHl-AewKPR9T9EzDYKvVtfM7o7kZgf1h2MAXAr8g1_Ei3Pxhg5QQi1PWXUsdwJpZlmObMpogHPjumJmrMRyGbFRUYiYSZeXelmqgrdPkcVh6oOKwwv1QO4UVCjbB2M3cKtWbgyCAqHosffLuLlctlrDdsPRXC-bTIfBEO865LKhCgoPe54MTPel79QW8SNS4gJUEPlevEXVhnggxBPNOsQu3FQ6kID1GIW2jzFpw14j_d2u_jOgKyNJajaye7Ab8lCQAe5zG1Myl364q6L7TvRz1mc9pRw8duTXnT-YBhug3fjy5ZEnKHrHiQa0rqv9ShtEXtbiDwVTEzywyWGn3BwcaS71eowUiHsVBEbJzsrJ2d4a5UTIVZZmsARkvBPN1D5mmQ. 
  6. ↑ Stickel, M.; Kuehr, H. (January 1996). "The current optical identification status of the S5 radio source catalogue." (in en). Astronomy and Astrophysics Supplement Series 115: 1. ISSN 0365-0138. https://articles.adsabs.harvard.edu/pdf/1996A%26AS..115....1S. 
  7. ↑ 7.0 7.1 7.2 7.3 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. doi:10.1111/j.1365-2966.2004.07903.x. ISSN 0035-8711. Bibcode: 2004MNRAS.352..112B. 
  8. ↑ Gonçalves, A. C.; Roos, M. Serote (2004-01-01). "The nuclear region of low luminosity flat radio spectrum sources - II. Emission-line spectra" (in en). Astronomy & Astrophysics 413 (1): 97–105. doi:10.1051/0004-6361:20031494. ISSN 0004-6361. Bibcode: 2004A&A...413...97G. https://www.aanda.org/articles/aa/pdf/2004/01/aa3468.pdf. 




Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:8C_1241%2B735&oldid=4387695"