Circumnuclear regions of active and non-active barred galaxies

Bibcode
1998IAUS..184...93K
Knapen, J. H.
Bibliographical reference

The central regions of the Galaxy and galaxies, Proceedings of the 184th symposium of the International Astronomical Union, held in Kyoto, Japan, August 18-22, 1997. Edited by Yoshiaki Sofue. Publisher: Dordrecht: Kluwer, 1998. ISBN: 079235060X, p.93

Advertised on:
0
1998
Number of authors
1
IAC number of authors
0
Citations
1
Refereed citations
1
Description
New near-infrared (NIR) observations of galaxies with circumnuclear starbursts and of Seyfert galaxies have shown both the importance of high-resolution imaging in the NIR, and of non-axisymmetric structures (e.g. bars) in the process of fuelling the central regions. I will discuss recent results of imaging surveys showing that the presence of a bar is a necessary, but not a sufficient, condition for Seyfert activity. I will also show new NIR images of central regions of galaxies at spatial resolutions well below half an arcsec, using adaptive optics techniques.
Type
Non-refereed

It may interest you

  • Non-refereed
    ROSALIA: ROman Sky Analyst for Low surface brightness Imaging & Astronomy
    Diffuse emission in the outskirts of galaxies, such as stellar tidal streams, galaxy stellar halos and intracluster light, provides important constraints on the structure and evolution of the Universe. However, such low surface brightness diffuse emission can be up to thousands of times dimmer (>29 AB mag/[square arcseconds]) than the sky
    Laine, Seppo et al.

    Advertised on:

    6
    2024
    Bibcode
    2024AAS...24412902L
    Citations
    0
  • Non-refereed
    A Systematic Search for and Characterization of White Dwarf Binaries Across the H-R Diagram
    White dwarfs (WDs) are the endpoint of evolution for 97% of stars. Most of these stars are in multiple systems, and a significant fraction of those are compact enough to exchange mass, altering the structures and subsequent evolution of both stars. The physical mechanisms that facilitate these mass exchanges include common envelope evolution, Roche
    Anguiano, Borja et al.

    Advertised on:

    6
    2024
    Bibcode
    2024AAS...24410807A
    Citations
    0
  • Non-refereed
    Deep HST Imaging Favors the Bulgeless Edge-on Galaxy Explanation for the Hypothetical Stellar Wake Created by a Runaway Supermassive Black Hole
    A long linear structure recently discovered could be the stellar wake produced by the passage of a runaway supermassive black hole (SMBH) or, alternatively, a bulgeless edge-on galaxy. We report on new very deep Hubble Space Telescope imaging that seems to be in tension with the SMBH runaway scenario but is consistent with the bulgeless edge-on
    Montes, Mireia et al.

    Advertised on:

    6
    2024
    Bibcode
    2024RNAAS...8..150M
    Citations
    0