Results 91 to 100 of about 696 (188)
Absorption Line Gradients of an Elliptical Galaxy NGC 5322 [PDF]
Journal of Astronomy and Space Sciences, 1999 Archival long-slit spectra, covering the wavelength range 4050Å - 5150Å, have been used to investigate the radial behavior of absorption line features (G4300, Fe4383, Ca4455, Fe44531, Fe4668, and Hα) of an eliptical galaxy NGC 5322.
Young-Jong Sohn +2 more
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The Astronomical JournalVV 191 is a nearby ( z ∼ 0.05), overlapping (occulting) galaxy pair, where a multiple-armed spiral galaxy is backlit by an elliptical galaxy. The overlap is used to derive and map dust attenuation in two James Webb Space Telescope NIRCam filters (F090W ...
Clayton D. Robertson +10 more
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Stellar Population Synthesis of the Elliptical Galaxy NGC 4649 [PDF]
Journal of Astronomy and Space Sciences, 2001 We investigated population of the elliptical galaxy NGC 4649 using the spectral synthesis technique based on the linear program in the spectral regions between 3160Å to 10800Å. We used the spectral data of stars obtained by Gunn & Stryker (1983), and the
Mun-Suk Chun +2 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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Spectral analysis of the elliptical galaxy NGC 7796 with suzaku
Journal of Radiation Research and Applied SciencesWe report Suzaku X-ray spectral analysis of the elliptical galaxy NGC 7796. We found the temperature and the abundances of O (∼0.54 keV), Ne (∼0.87 keV), Mg (∼1.30 keV), Si (∼1.84 keV), (hearafter O–Si), and Fe (∼6.4 keV) in the NGC 7796 for the first ...
Ebru Aktekin Çalışkan
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No Evidence of a Dichotomy in the Elliptical Galaxy Population
The Astrophysical JournalThe advent of large integral field spectroscopic surveys has found that elliptical galaxies (EGs) can be divided into two classes: the fast rotators (whose kinematics are dominated by rotation) and the slow rotators (which exhibit slow or no rotation ...
Rogério Monteiro-Oliveira +5 more
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Evolution of Massive Red Galaxies in Clusters from z = 1.0 to z = 0.3
The Astronomical JournalA critical issue in studying the evolution of galaxy clusters is to find ways that enable meaningful comparisons of clusters observed at different redshifts, as well as in various stages of their growth.
Yen-Ting Lin +4 more
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Core Formation by Binary Scouring and Gravitational Wave Recoil in Massive Elliptical Galaxies
The Astrophysical JournalScouring by supermassive black hole (SMBH) binaries is the most accepted mechanism for the formation of the cores seen in giant elliptical galaxies. However, an additional mechanism is required to explain the largest observed cores.
Nader Khonji +3 more
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The Astrophysical Journal LettersRecent James Webb Space Telescope observations have revealed a peculiar class of galaxies at redshifts z ≳ 6, characterized by extremely high central stellar densities and overmassive central supermassive black holes (SMBHs), “little red dots” (LRDs). A
Fazeel Mahmood Khan +3 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 ...
openaire +1 more source