Results 91 to 100 of about 390,122 (225)
Near-capacity irregular variable length coding and irregular unity rate coding [PDF]
, 2009 In this contribution we introduce an EXtrinsic Information Transfer (EXIT) chart matching technique for the design of two serially concatenated irregular codecs, each constituted by a variety of component codes.
Hanzo, L., Maunder, R. G.
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Holmberg IX: A Unique, Infant but Inactive Galaxy as Revealed via a Multiwavelength Approach
The Astrophysical Journal LettersIn this Letter, we report a novel discovery of unique characteristics for the tidal dwarf galaxy (candidate) Holmberg IX via a multiwavelength investigation.
Ye-Wei Mao +4 more
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Astronomy & AstrophysicsAims. The two-dimensional spatial distribution of stellar specific angular momentum (sAM) within galaxies has never been analysed. We seek to identify the morpho-kinematics of this property and its correlation with the total stellar sAM (j★) and the ...
Pacheco-Arias Juan Manuel +3 more
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ON THE STAR FORMATION LAW FOR SPIRAL AND IRREGULAR GALAXIES [PDF]
The Astrophysical Journal, 2015 A dynamical model for star formation on a galactic scale is proposed in which the interstellar medium is constantly condensing to star-forming clouds on the dynamical time of the average midplane density, and the clouds are constantly being disrupted on the dynamical time scale appropriate for their higher density.
openaire +2 more sources
Galaxy morphology classification: are stellar circularities enough? [PDF]
Serbian Astronomical JournalWe present a preliminary study exploring whether the stellar orbital circularity of simulated galaxies, available from precomputed catalogs in the IllustrisTNG project, can be used as a proxy for a broad morphological classification. We focus on
Baucalo Katarina, Mitrašinović Ana
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IUE spectra of clumpy irregular galaxies⋆ [PDF]
Monthly Notices of the Royal Astronomical Society, 1982 BENVENUTI, PIERO, C. Casini, J. Heidmann
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FIGGS Faint Irregular Galaxies GMRT Survey [PDF]
, 2008 The Faint Irregular Galaxies GMRT Survey (FIGGS) is a large program aimed at providing a comprehensive and statistically robust characterisation of the neutral ISM properties of faint (M_B > -14.5), nearby, gas rich, dwarf irregular galaxies using the Giant Metrewave Radio Telescope (GMRT). Here we briefly describe the survey and discuss some of the
Begum, Ayesha +4 more
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Surface photometry of early-type galaxies in rich clusters [PDF]
, 1998 This thesis investigates the morphology of early-type galaxies in two rich clusters using 2D surface photometry. In particular, the amount of light in the 'disk' component is focussed upon, as the presence of a disk is the main morphological criterion in
Steel, James, Steel, J.
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Fragmentation of Expanding Shells in Spiral and Irregular Galaxies
Astronomy & Astrophysics, 1997 Conditions for the fragmentation of expanding shells due to gravitational instability are discussed. The self-similar analytical solution is compared with the results of 3-dimensional computer simulations for the expansion into homogeneous media. For realistic galactic disks we show that the formation of fragments is influenced by the amount of energy ...
Ehlerova, Sona +3 more
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Erratum: IRAS observations of irregular galaxies [PDF]
, 1987 In Infrared Astronomy Satellite (IRAS) observations of irregular galaxies, galactic blue luminosities were based on standard optical definitions. The blue luminosities (L sub B) were derived from the blue absolute magnitude (M sub B) or form the in band ...
Hunter, D. A., Gallagher, J. S.
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