Results 51 to 60 of about 168 (138)
Formation of a Massive Lenticular Galaxy Under the Tidal Interaction with a Group of Dwarf Galaxies
The Astrophysical Journal Letters, 2023 Abstract Based on the atomic-hydrogen (H i) observations using the Five-hundred-meter Aperture Spherical radio Telescope, we present a detailed study of the gas-rich massive S0 galaxy NGC 1023 in a nearby galaxy group. The presence of a H i extended warped disk in NGC 1023 indicates that this S0 galaxy originated from a spiral galaxy ...
Jin-Long Xu +8 more
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Local elliptical galaxies: Some aspects of theory vs. observations [PDF]
Serbian Astronomical Journal, 2007 In this paper we analyze on, the sample of the local elliptical galaxies, some predictions of various cosmological theories. We start with the sample of ellipticals described in Samurović (2007b) and confront the established concentration parameters and ...
Samurović S.
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Dark matter in massive early-type galaxies: 100 years of the jeans equations [PDF]
Serbian Astronomical Journal, 2019 In 1919 James Jeans published the book Problems of Cosmogony and Stellar Dynamics in which he summarized his work on dynamics of stellar systems based on his papers published from 1915 onwards.
Samurović S.
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Astronomy & AstrophysicsContext. Galaxy morphology encodes key information about formation and evolution. Large imaging surveys require automated, reproducible methods beyond visual inspection.
Sampaio V. M. +7 more
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Outer Rings in Early-type Galaxies: From Vorontsov-Velyaminov to Present
Open Astronomy, 2014 ‘Ringed galaxies’, or disk galaxies with prominent outer ring structures, separated visually from the main galactic bodies, were discovered and intensively studied by B. A. Vorontsov-Vel’yaminov whose 110th anniversary is celebrated this year. We discuss
Silchenko O., Ilyina M., Katkov I.
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The Newtonian and MOND dynamical models of NGC 5128: Investigation of the dark matter contribution [PDF]
Serbian Astronomical Journal, 2016 We study the well-known nearby early-type galaxy NGC 5128 (Centaurus A) and use the sample of its globular clusters to analyze its dynamics. We study both Newtonian and MOND models assuming three cases of orbital anisotropies: isotropic case ...
Samurović S.
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Stellar counter-rotation in lenticular galaxy NGC 448 [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 The counter-rotation phenomenon in disc galaxies directly indicates a complex galaxy assembly history which is crucial for our understanding of galaxy physics. Here we present the complex data analysis for a lenticular galaxy NGC 448, which has been recently suspected to host a counter-rotating stellar component.
Katkov, Ivan Yu. +4 more
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Star Formation in the Lopsided Galaxy Arp 291
The Astrophysical JournalWe have investigated the star formation process taking place in the lopsided galaxy Arp 291, based on narrowband images in the H α , [N ii ] λ 6583, and [O iii ] λ 5007 emission lines, obtained using the modern tunable photometer MaNGaL at the Caucasus ...
Irina S. Proshina, Dmitriy V. Oparin
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The core of the problem: Physical limits of the core–Sérsic model
Astronomy & AstrophysicsThe core–Sérsic model is the standard tool for describing partially depleted stellar cores in massive early-type galaxies, yet its physical admissibility has rarely been examined.
Baes Maarten
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The Astrophysical JournalGalaxy formation and evolution are hierarchical. The most massive galaxies are thought to form their central regions early through violent dissipational processes, then grow inside-out by accreting smaller satellites.
Haoran Dou +4 more
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