Results 131 to 140 of about 500,059 (233)
The Baryonic Halos of Isolated Elliptical Galaxies
Galaxies, 2017 Without the interference of a number of events, galaxies may suffer in crowded environments (e.g., stripping, harassment, strangulation); isolated elliptical galaxies provide a control sample for the study of galaxy formation.
Ricardo Salinas +5 more
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On the rotation of elliptical galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1978 The tensor virial theorem is applied to models of early-type galaxies. First the theorem is applied to rotating elliptical galaxies whose constant-density surfaces are similar ellipsoids. A relationship is obtained between the observed rotations and the forms of generally triaxial galaxies.
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Scaling Relations of Early-Type Galaxies in MOND
GalaxiesWe investigate the shape and morphology of early-type galaxies (ETGs) within the framework of Modified Newtonian Dynamics (MOND). Building on our previous studies, which demonstrated that the monolithic collapse of primordial gas clouds in MOND produces ...
Robin Eappen, Pavel Kroupa
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Relativistic jets in narrow-line Seyfert 1 galaxies. New discoveries and open questions
EPJ Web of Conferences, 2013 Before the launch of the Fermi satellite only two classes of AGNs were known to produce relativistic jets and thus emit up to the γ-ray energy range: blazars and radio galaxies, both hosted in giant elliptical galaxies.
D’Ammando F. +4 more
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BL Lac Host Galaxies: How to Systematically Characterize Them in Optical–Near-infrared Spectroscopy
The Astrophysical JournalHost galaxies of active galactic nuclei (AGN) give crucial information on the interaction between accreting supermassive black holes and their surroundings and on their common evolution.
Gaia Delucchi +5 more
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Structure and Kinematics of Star-forming Elliptical Galaxies in SDSS-MaNGA
The Astrophysical JournalUsing “spatially” resolved spectroscopy, we investigated the characteristics and different modes of formation of stars in elliptical galaxies. We identified an unusual population of 59 star-forming elliptical (SF-E) galaxies in SDSS-MaNGA, our primary ...
Pralay Biswas, Yogesh Wadadekar
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The Astrophysical Journal LettersThe centers of massive elliptical galaxies exhibit a wide range in density profiles, from central cusps to resolved cores with order kiloparsec sizes.
Kyle Kremer +4 more
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Iraqi Journal of PhysicsUnderstanding the CNO cycle and the proton-proton (p-p) chain is essential for comprehending the development of main sequence stars in the initial stages of spiral and elliptical galaxy formation. This study investigates two nuclear reactions that occur
Rabab Muzhir J., Al Najm M. N.
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Galaxy Morphological Classification with Zernike Moments and Machine Learning Approaches
The Astrophysical Journal Supplement SeriesClassifying galaxies is an essential step for studying their structures and dynamics. Using GalaxyZoo2 (GZ2) fractions thresholds, we collect 545 and 11,735 samples in nongalaxy and galaxy classes, respectively.
Hamed Ghaderi +2 more
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, 1989 In this thesis, radial colour and line strength gradients are investigated, and corresponding stellar population gradients are modelled. Together with the gradients, the morphology of the galaxies in optical and near-infrared colours is analyzed. When investigated in detail, every elliptical galaxy has its own special morphology, but nevertheless the ...
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