Results 21 to 30 of about 826 (184)
The dynamics of the giant radio galaxy 3C���457 [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 We present multi-frequency radio observations with the Giant Metrewave Radio Telescope and Very Large Array, and X-ray observations with the X-ray Multi-Mirror Mission ({\it XMM-Newton}) telescope of the giant radio source (GRS) 3C 457. We have detected the core, lobes and the environment of the GRS in X-ray.
Konar, C. +3 more
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Giant radio galaxies – I. Intergalactic barometers [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 We present new wideband radio observations with the Australia Telescope Compact Array of a sample of 12 giant radio galaxies. The radio observations are part of a larger radio-optical study aimed at relating the radio structures with the ambient medium on large scales.
Malarecki, J. M. +6 more
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Radio Mode Outbursts in Giant Elliptical Galaxies [PDF]
AIP Conference Proceedings, 2009 4 pages, 3 figures, to appear in proceedings of "The Monster's Fiery Breath", Eds. Sebastian Heinz & Eric Wilcots (AIP conference series)
Paul Nulsen +8 more
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Feeding the Central Engine in Giant Radio Galaxies [PDF]
Symposium - International Astronomical Union, 1999 Giant radio galaxies are thought to be massive ellipticals powered by accretion of interstellar matter onto a supermassive black hole. Interactions with gas rich galaxies may provide the interstellar matter to feed the active galactic nucleus (AGN). To power radio lobes that extend up to distances of hundreds of kiloparsecs, gas has to be funneled from
Mirabel, I. F., Laurent, O.
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Giant cyclones in gaseous discs of spiral galaxies [PDF]
Physics Letters A, 1999 13 pages, 4 EPS and 3 PS ...
Fridman, A. M. +7 more
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Spectroscopy of Red Giants of the Sagittarius Dwarf Galaxy [PDF]
Symposium - International Astronomical Union, 1999 The photometric study of the Sagittarius dwarf galaxy by Marconi et al. (1998) has suggested the presence of a spread in metallicity (-0.7 ≤ [Fe/H] ≤ −1.6), which may result from different bursts of star formation. We present the results from a Multi Object Slit spectroscopy program carried out at the NTT with the aim to determine spectroscopic ...
Marconi, G. +3 more
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Radio Galaxy Zoo: new giant radio galaxies in the RGZ DR1 catalogue [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT In this paper, we present the identification of five previously unknown giant radio galaxies (GRGs) using Data Release 1 of the Radio Galaxy Zoo citizen science project and a selection method appropriate to the training and validation of deep learning algorithms for new radio surveys.
H Tang +7 more
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SUITES OF DWARFS AROUND NEARBY GIANT GALAXIES [PDF]
The Astronomical Journal, 2013 5 tables, 7 figures. Accepted for The Astronomical Journal. The electronic version of tables as well as the article with figures in high resolution are available at the Local Volume Galaxies database web-page http://www.sao.ru/lv ...
Karachentsev, Igor D. +2 more
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Globular Clusters in Dwarf and Giant Galaxies [PDF]
, 2009 The luminosity distribution of globular clusters shows a dramatic dependence on parent galaxy luminosity. Dwarf galaxies contain far more faint globulars than do luminous galaxies. This difference is significant at the 99.7% level. On the other hand the luminosity distribution of globular clusters in dwarf galaxies does not appear to depend strongly on
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Giant Molecular Cloud Populations in Nearby Galaxies [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractWe present new results from a comparative analysis of the resolved giant molecular cloud (GMC) populations in six nearby galaxies. We show that the GMCs in denser environments–M51, the centre of NGC6946–have greater CO surface brightness and higher velocity dispersions relative to their size than GMCs in less dense environments.
Hughes, A. +6 more
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