Projekteja vuodessa
Abstrakti
Narrow-line Seyfert 1 galaxies (NLS1) are an intriguing subclass of active galactic nuclei. Their observed properties indicate low central black hole mass and high accretion rate. The extremely radio-loud NLS1 sources often show relativistic beaming and are usually regarded as younger counterparts of blazars. Recently, the object SDSS J110006.07+442144.3 was reported as a candidate NLS1 source. The characteristics of its dramatic optical flare indicated its jet-related origin. The spectral energy distribution of the object was similar to that of the γ-ray detected radio-loud NLS1, PMN J0948+0022. Our high-resolution European very long baseline interferometry network observations at 1.7 and 5 GHz revealed a compact core feature with a brightness temperature of ≳1010 K. Using the lowest brightness temperature value and assuming a moderate Lorentz factor of ∼9, the jet viewing angle is ≲26°. Archival Very Large Array data show a large-scale radio structure with a projected linear size of ∼150 kpc reminiscent of double-sided morphology.
Alkuperäiskieli | Englanti |
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Sivut | 1554-1561 |
Sivumäärä | 8 |
Julkaisu | Monthly Notices of the Royal Astronomical Society |
Vuosikerta | 473 |
Numero | 2 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 11 tammik. 2018 |
OKM-julkaisutyyppi | A1 Julkaistu artikkeli, soviteltu |
Sormenjälki
Sukella tutkimusaiheisiin 'The radio structure of the peculiar narrow-line Seyfert 1 galaxy candidate J1100+4421'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.Projektit
- 2 Päättynyt
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Novel Explorations Pushing Robust e-VLBI Services
Mujunen, A., Turtiainen, E. & Molera Calves, G.
01/07/2010 → 30/06/2013
Projekti: EU: Framework programmes funding
Laitteet
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Metsähovin radiotutkimusasema
Joni Tammi (Manager)
Sähkötekniikan korkeakouluLaitteistot/tilat: Facility