Results 1 to 10 of about 70 (70)
Properties of Galaxies with Peculiar Nuclei [PDF]
Publications of the Astronomical Society of the Pacific, 1967 In a former note (Sersic and Pastoriza 1965) we published the results of a survey of bright southern galaxies which were inspected for peculiarities in their nuclei. Although the sample was small ( 35 galaxies) it suggested a relationship between the existence of a bar and the presence of abnormal features in their nuclei.
Sérsic, José Luis, 1933-1993 +1 more
openaire +2 more sources
Galaxies with Binary Nuclei [PDF]
Proceedings of the International Astronomical Union, 2013 AbstractIt is known that among active galaxies (AG) with strong emission lines (UV-galaxies, Sy1 and Sy2, Markarian and Kazarian galaxies, radio-galaxies, QSOs host galaxies and so on) there is a large percentage of objects with double and multiple (or complex) nuclei.
Yervant Terzian, Edward Khachikian
openaire +1 more source
Galaxies and Their Nuclei [PDF]
Highlights of Astronomy, 1974 Our Extraordinary General Assembly is devoted to the memory of one of the greatest men of science to the genial Polish astronomer - Nicolaus Copernicus. The main service of Copernicus which has made his name immortal was in finding the correct interpretation of the planetary motions we observe.
openaire +1 more source
Merging Galaxies with Active Nuclei [PDF]
Symposium - International Astronomical Union, 1999 We are investigating a sample of nearby interacting and merging galaxies showing starburst properties and/or nonthermal nuclear activity (e.g. Mrk 231, Mrk 739, Mrk 1027, NGC 2992, Arp 92).
openaire +1 more source
Young nuclei in dwarf elliptical galaxies [PDF]
Astronomy Letters, 2007 accepted to "Astronomy Letters". Version for astro-ph with colour figures.
Chilingarian, Igor V. +3 more
openaire +2 more sources
Active galactic nuclei and galaxy interactions [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 We perform a statistical analysis of active galactic nucleus (AGN) host characteristics and nuclear activity for AGNs in pairs and without companions. Our study concerns a sample of AGNs derived from the Sloan Digital Sky Survey Data Release 4 data by Kauffmann et al. and pair galaxies obtained from the same data set by Alonso et al.
Alonso, M. Sol +3 more
openaire +2 more sources
An atlas of mid-infrared spectra of galaxy nuclei [PDF]
Monthly Notices of the Royal Astronomical Society, 1991 The spectral energy distributions are presented for 60 galaxies for which 8-13 μm, and in some cases 17-23 μm, spectra have been obtained. These IR bright galaxies are discussed in terms of their spectral properties in the mid-IR and the relationship with their far-IR properties.
Roche, P, Aitken, D, Smith, C, Ward, M
openaire +1 more source
Interacting Nuclei in Distant Galaxies [PDF]
International Astronomical Union Colloquium, 1990 The interaction of galaxies not only occurs in galactic scales, but also may be linked to the binary cores in active galactic galaxies. The presence of a binary in the center of galaxies was suggested by Begelman, Blandford and Rees (1980). Gaskell (1983) suggests that supermassive binaries may account for the observed structure of emission line ...
Wei Zheng, Steven A. Grandi
openaire +1 more source
The Stellar Content of the Nuclei of Spiral Galaxies [PDF]
Highlights of Astronomy, 1980 Widened, image-tube spectra at a dispersion of 120 Å mm-1 were obtained of the nuclei of 36 spiral (Shapley-Ames) galaxies. Spectral features in the region λλ 3800 - 4300 Å were used to assign a spectral index to each galaxy and to estimate the luminosity classes of the stars contributing the majority of the light at these wavelengths. Bulge magnitudes
openaire +1 more source
Feeding and feedback in nuclei of galaxies [PDF]
Proceedings of the International Astronomical Union, 2019 AbstractOur aim is to explore the close environment of Active Galactic Nuclei (AGN) and its connection to the host galaxy through the morphology and dynamics of the cold gas inside the central kpc in nearby AGN. We report Atacama Large Millimeter/submillimeter Array (ALMA) observations of AGN feeding and feedback caught in action in NGC613 and NGC1808 ...
Anelise Audibert +3 more
openaire +4 more sources