Results 61 to 70 of about 129,721 (164)
The Long-Lasting Activity in the Flat Spectrum Radio Quasar (FSRQ) CTA 102
Galaxies, 2019 The flat spectrum radio quasar CTA 102 ( z = 1 . 032 ) went through a tremendous phase of variability. Since early 2016 the gamma-ray flux level has been significantly higher than in previous years. It was topped by a four month long giant outburst,
Michael Zacharias +5 more
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Infall of planetesimals onto growing giant planets: onset of runaway gas accretion and metallicity of their gas envelopes [PDF]
, 2008 We have investigated the planetesimal accretion rate onto giant planets that are growing through gas accretion, using numerical simulations and analytical arguments. We derived the condition for gap opening in the planetesimal disk, which is determined by a competition between the expansion of the planet's Hill radius due to the planet growth and the ...
arxiv +1 more source
Multiarm spirals on the periphery of disc galaxies
Open Astronomy, 2018 Spiral patterns in some disc galaxies have two arms in the centre, and three or more arms on the periphery. The same result is also obtained in numerical simulations of stellar and gaseous discs.We argue that such patterns may occur due to fast cooling ...
Lubov Spiegel, Evgeny Polyachenko
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RELATIONS OF STRUCTURE COMPONENTS OF GIANT RADIO SOURCES
Odessa Astronomical Publications, 2016 Our previous estimates of physical parameters of galaxies and quasars with steep radio spectrum have showed their great radio luminosity and giant radio structure.
A. P. Miroshnichenko
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Recycling of ghost galaxies: The origin of giant HI ring around NGC 1533 [PDF]
arXiv, 2003 We propose that the giant HI ring recently discovered by HIPASS for S0 galaxy NGC 1533 is formed by unequal-mass merging between gas-rich LSB (low surface brightness: ``ghost'') galaxies and HSB disks. The NGC 1533 progenitor HSB spiral is transformed into a barred S0 during merging and the outer HI gas disk of the LSB is transformed into the giant HI ...
arxiv
Could M31 be the result of a major merger?
EPJ Web of Conferences, 2012 We investigated a scenario in which M31 could be the remnant of a gas-rich major merger. Galaxy merger simulations, highly constrained by observations, were run using GADGET 2 in order to reproduce M31. We succeeded in reproducing the global shape of M31,
Puech M. +5 more
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Journal of Natural Gas Geoscience, 2019 Deepwater exploration has been developed for more than 40 years since 1975; generally, its exploration history can be divided into the beginning stage (1975–1984), the early stage (1985–1995) and the rapid development stage (1996-now).
Gongcheng Zhang +7 more
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First Detection of Molecular Gas in the Giant Low Surface Brightness Galaxy Malin 1
The Astrophysical Journal LettersAfter over three decades of unsuccessful attempts, we report the first detection of molecular gas emission in Malin 1, the largest spiral galaxy observed to date, and one of the most iconic giant low surface brightness galaxies.
Gaspar Galaz +19 more
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Molecules, 2015 Volatile compounds, physicochemical and sensory attributes of four sweet cherry cultivars (Canada giant, Ferrovia, Lapins and Skeena) grown in Northern Greece were determined.
Maria V. Vavoura +3 more
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Petroleum Exploration and Development, 2015 Since the Neoproterozoic, two important cycles of separation and junction of the Rodinia and Pangea supercontinents controlled the formation of the Tethys, Laurasia, Gondwana and Pacifica domains, as well as the sedimentary basin types including craton ...
Caineng ZOU +12 more
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