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相关论文: The putative center in NGC 1052

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We have studied the inner regions of the LINER galaxy NGC1052 since the mid 1990s at high resolution with 15 GHz very-long-baseline interferometry observations. A compact, two-sided jet structure is revealed, with multiple sub-parsec scale…

天体物理学 · 物理学 2014-11-18 Eduardo Ros , Matthias Kadler

We present a combined radio, optical, and X-ray study of the nearby LINER galaxy NGC 1052. Data from a short (2.3 ksec) {\it CHANDRA} observation of NGC 1052 reveal the presence of various jet-related X-ray emitting regions, a bright…

天体物理学 · 物理学 2009-11-10 M. Kadler , J. Kerp , E. Ros , H. Falcke , R. W. Pogge , J. A. Zensus

This paper investigates the symmetry and magnetic field properties of the jets in the radio galaxy NGC 1052, with particular attention to the impact of the ionized torus that surrounds the central region on the emitted radiation. Our study…

With the increased sensitivity and resolution of radio interferometry the study of the collimation and acceleration region of jets in Active Galactic Nuclei (AGN) has come into focus within the last years. Whereas a large fraction of AGN…

高能天体物理现象 · 物理学 2022-02-09 A. -K. Baczko , E. Ros , M. Kadler , C. M. Fromm , B. Boccardi , M. Perucho , T. P. Krichbaum , P. R. Burd , J. A. Zensus

We aim to determine the properties of the central region of NGC 1052 using X-ray and radio data. NGC 1052 (z=0.005) has been investigated for decades in different energy bands and shows radio lobes and a low luminosity active galactic…

星系天体物理 · 物理学 2020-07-01 S. Falocco , J. Larsson , S. Nandi

Context: Few Active Galactic Nuclei (AGN) reveal a double sided jet system. However, these are crucial to understand basic physical properties of extragalactic jets. Aims: We address the questions whether jets in AGN are symmetric in…

星系天体物理 · 物理学 2019-02-27 A. -K. Baczko , R. Schulz , M. Kadler , E. Ros , M. Perucho , C. M. Fromm , J. Wilms

NGC 1052 offers the possibility to study the obscuring torus around a supermassive black hole, predicted by the standard model of active galactic nuclei, over a wide range of wavelengths from the radio to the X-ray regime. We present a…

天体物理学 · 物理学 2009-11-10 M. Kadler , E. Ros , A. P. Lobanov , H Falcke , J. A. Zensus

High-resolution Very-Long-Baseline Interferometry observations of NGC 1052 show a two sided jet with several regions of enhanced emission and a clear emission gap between the two jets.This gap shrinks with increasing frequency and vanishes…

高能天体物理现象 · 物理学 2019-08-28 C. M. Fromm , Z. Younsi , A. Bazcko , Y. Mizuno , O. Porth , M. Perucho , H. Olivares , A. Nathanail , E. Angelakis , E. Ros , J. A. Zensus , L. Rezzolla

We present multi-frequency simultaneous VLBA observations at 15, 22 and 43 GHz towards the nucleus of the nearby radio galaxy NGC 1052. These three continuum images reveal a double-sided jet structure, whose relative intensity ratios imply…

宇宙学与河外天体物理 · 物理学 2010-11-02 S. Sawada-Satoh , S. Kameno , K. Nakamura , D. Namikawa , K. M. Shibata , M. Inoue

We present results of a VLBA multi-frequency study of the pc-scale twin jet in NGC1052. We observed this object at epoch 1998.99 with the VLBA at 5, 8.4, 22 and 43 GHz both in total and linearly polarized intensity. The spectral analysis…

天体物理学 · 物理学 2007-05-23 M. Kadler , E. Ros , J. A. Zensus , A. P. Lobanov , H. Falcke

We present multi-frequency simultaneous VLBA observations at 15, 22 and 43 GHz towards the nucleus of the nearby radio galaxy NGC 1052. These three continuum images reveal a double-sided jet structure, whose relative intensity ratios imply…

This is a paper on young jet material in a frustratingly complex environment. NGC 1052 has a compact, flat- or GHz-peaked-spectrum radio nucleus consisting of bi-symmetric jets, oriented close to the plane of the sky. Many features on both…

天体物理学 · 物理学 2009-11-07 R. C. Vermeulen , E. Ros , K. I. Kellermann , M. H. Cohen , J. A. Zensus , H. J. van Langevelde

The bright radio structure of the LINER elliptical galaxy NGC1052 is dominated by bi-symmetric jets on parsec scales. Features move outward on both sides of the core at v_{app}~0.26c. We have established the occurrence of free-free…

天体物理学 · 物理学 2007-05-23 R. C. Vermeulen , E. Ros , J. A. Zensus , K. I. Kellermann , M. H. Cohen , H. J. van Langevelde

We report sub-pc-scale observations of the 321-GHz H$_2$O emission line in the radio galaxy NGC 1052. The H$_2$O line emitter size is constrained in $< 0.6$ milliarcsec distributed on the continuum core component. The brightness temperature…

We investigated the jet width profile with distance along the jet in the nearby radio galaxy NGC 1052 at radial distances between $\sim300$ to $4 \times 10^7$ Schwarzschild Radii($R_{\rm S}$) from the central engine on both their…

The radio loud galaxy NGC 1052 is being studied in an intensive multi-band campaign including X-ray brigthness monitoring and spectroscopic observations, single-dish radio brightness monitoring at centimetre wavelengths, and a…

天体物理学 · 物理学 2008-12-02 E. Ros , M. Kadler , Y. Y. Kovalev , H. D. Aller , M. F. Aller , S. Kaufmann

We present the results of a number of high resolution radio observations of the AGN 1156+295. These include multi-epoch and multi-frequency VLBI, VSOP, MERLIN and VLA observations made over a period of 50 months. The 5 GHz MERLIN images…

We present new near-IR long slit spectroscopic data obtained with ISAAC on VLT/ANTU (ESO/Paranal) of the central 4''x 4'' region surrounding the central engine of NGC1068 . Bracket Gamma (Bg) and H2 emission line maps and line profile grids…

天体物理学 · 物理学 2009-11-07 Emmanuel Galliano , Danielle Alloin

We have obtained HST FOC f/48 long-slit spectroscopy of the inner 4" of the Narrow Line Region of NGC 1068 between 3500-5400A with a spectral resolution of 1.78A/pixel. At a spatial scale of 0.0287" per pixel these data provide an order of…

天体物理学 · 物理学 2009-10-30 D. J. Axon , A. Marconi , A. Capetti , F. D. Macchetto , E. J. Schreier , A. Robinson

We present a study of available Hubble Space Telescope (HST) spectroscopic and imaging observations of the low ionization nuclear emission line region (LINER) galaxy NGC 1052. The WFPC2 imagery clearly differentiates extended nebular Halpha…

天体物理学 · 物理学 2009-10-31 J. R. Gabel , F. C. Bruhweiler , D. M. Crenshaw , S. B. Kraemer , C. L. Miskey
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