NUclei of GAlaxies V. Radio emission in 7 NUGA sources

作者: M. Krips , A. Eckart , T. P. Krichbaum , J.-U. Pott , S. Leon

DOI: 10.1051/0004-6361:20065037

关键词:

摘要: We present high angular resolution radio snap-shot observations of seven nearby low-luminosity active galaxies (LLAGN) from the NUclei GAlaxies (NUGA) survey. The were conducted with MERLIN and EVN/VLBI at 18 cm 6 cm. At all observed resolutions frequencies, we find indications for extended emission in about � 40% sources, consistent decrease flux increasing resolution. components resemble jet a majority cases, optically thin synchrotron implied by their steep spectra. consider compact 6cm our sources context "fundamental plane" that previous LLAGN studies identified within three- dimensional parameter space luminosity, X-ray black hole mass. demonstrate, using NGC 7217 1068 as particular examples, high-resolution, multi-epoch offer useful information origin offsets fundamental plane.

参考文章(90)
Jong‐Hak Woo, C. Megan Urry, Active Galactic Nucleus Black Hole Masses and Bolometric Luminosities The Astrophysical Journal. ,vol. 579, pp. 530- 544 ,(2002) , 10.1086/342878
Jack F. Gallimore, Stefi A. Baum, Christopher P. O'Dea, A direct image of the obscuring disk surrounding an active galactic nucleus Nature. ,vol. 388, pp. 852- 854 ,(1997) , 10.1038/42201
A. Wandel, The Black Hole–to–Bulge Mass Relation in Active Galactic Nuclei The Astrophysical Journal. ,vol. 519, pp. L39- L42 ,(1999) , 10.1086/312106
S. García-Burillo, Andreas Eckart, Eva Schinnerer, A. J. Baker, F. Combes, Melanie Krips, L. K. Hunt, Roberto Neri, Frederic Boone, P. Englmaier, Stéphane Léon, Jörg Uwe Pott, Linda J. Tacconi, Molecular gas in NUclei of GAlaxies (NUGA): III. The warped LINER NGC 3718 Astronomy and Astrophysics. ,vol. 442, pp. 479- 493 ,(2005) , 10.1051/0004-6361:20041731
J. S. Ulvestad, A. S. Wilson, Radio structures of Seyfert galaxies. V. A flux-limited sample of Markarian galaxies. The Astrophysical Journal. ,vol. 278, pp. 544- 557 ,(1984) , 10.1086/161821
Daisuke Iono, Min S. Yun, Paul T. P. Ho, Atomic and Molecular Gas in Colliding Galaxy Systems. I. The Data Astrophysical Journal Supplement Series. ,vol. 158, pp. 1- 37 ,(2005) , 10.1086/429093
Luis C. Ho, James S. Ulvestad, Radio Continuum Survey of an Optically Selected Sample of Nearby Seyfert Galaxies Astrophysical Journal Supplement Series. ,vol. 133, pp. 77- 118 ,(2001) , 10.1086/319185
Luis C. Ho, Alexei V. Filippenko, Wallace L. W. Sargent, A Search for “Dwarf'' Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies Astrophysical Journal Supplement Series. ,vol. 112, pp. 315- 390 ,(1997) , 10.1086/313041
J. J. Condon, G. Helou, D. B. Sanders, B. T. Soifer, A 1. 49 GHz atlas of the IRAS Bright Galaxy Sample Astrophysical Journal Supplement Series. ,vol. 73, pp. 359- 400 ,(1990) , 10.1086/191472
Judith A. Irwin, E. R. Seaquist, Nuclear jets in the radio lobe spiral galaxy, NGC 3079 The Astrophysical Journal. ,vol. 335, pp. 658- 667 ,(1988) , 10.1086/166956