The radio structure of the peculiar narrow-line Seyfert 1 galaxy candidate J1100+4421

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The radio structure of the peculiar narrow-line Seyfert 1 galaxy candidate J1100+4421. / Gabányi, K. É.; Frey, S.; Paragi, Z.; Järvelä, E.; Morokuma, T.; An, T.; Tanaka, M.; Tar, I.

In: Monthly Notices of the Royal Astronomical Society, Vol. 473, No. 2, 11.01.2018, p. 1554-1561.

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Gabányi, K. É. ; Frey, S. ; Paragi, Z. ; Järvelä, E. ; Morokuma, T. ; An, T. ; Tanaka, M. ; Tar, I. / The radio structure of the peculiar narrow-line Seyfert 1 galaxy candidate J1100+4421. In: Monthly Notices of the Royal Astronomical Society. 2018 ; Vol. 473, No. 2. pp. 1554-1561.

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@article{bf4cc198a1d546ecbbc0bc6ae008eed9,
title = "The radio structure of the peculiar narrow-line Seyfert 1 galaxy candidate J1100+4421",
abstract = "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.",
keywords = "Galaxies: active, Galaxies: individual: SDSS J110006.07+442144.3, Galaxies: Seyfert",
author = "Gab{\'a}nyi, {K. {\'E}.} and S. Frey and Z. Paragi and E. J{\"a}rvel{\"a} and T. Morokuma and T. An and M. Tanaka and I. Tar",
note = "10.1093/mnras/stx2449",
year = "2018",
month = "1",
day = "11",
doi = "10.1093/mnras/stx2449",
language = "English",
volume = "473",
pages = "1554--1561",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
number = "2",

}

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TY - JOUR

T1 - The radio structure of the peculiar narrow-line Seyfert 1 galaxy candidate J1100+4421

AU - Gabányi, K. É.

AU - Frey, S.

AU - Paragi, Z.

AU - Järvelä, E.

AU - Morokuma, T.

AU - An, T.

AU - Tanaka, M.

AU - Tar, I.

N1 - 10.1093/mnras/stx2449

PY - 2018/1/11

Y1 - 2018/1/11

N2 - 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.

AB - 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.

KW - Galaxies: active

KW - Galaxies: individual: SDSS J110006.07+442144.3

KW - Galaxies: Seyfert

U2 - 10.1093/mnras/stx2449

DO - 10.1093/mnras/stx2449

M3 - Article

VL - 473

SP - 1554

EP - 1561

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -

ID: 16798014