Results 61 to 70 of about 241,346 (164)

Photometric investigations of NGC 2577 and NGC 4310 Lenticular Galaxies

open access: yesIraqi Journal of Science, 2018
In this study, two lenticular galaxies ( NGC 2577, NGC 4310 ) have been chosen to study their morphological and photometric properties, by using The [1] IRAF ISOPHOTE ELLIPSE task with griz -Filters.
Abdullah K Ahmed, Zahraa Adnan
semanticscholar   +1 more source

Globular clusters and planetary nebulae kinematics and X-ray emission in the early-type galaxy NGC 5128 [PDF]

open access: yesSerbian Astronomical Journal, 2006
The estimates of the mass of the galaxy NGC 5128 based on the different mass tracers, globular clusters (GCs) and planetary nebulae (PNe), are presented.
Samurović S.
doaj   +1 more source

The SAURON project - IV. The mass-to-light ratio, the virial mass estimator and the Fundamental Plane of elliptical and lenticular galaxies [PDF]

open access: yes, 2005
We investigate the well-known correlations between the dynamical mass-to-light ratio M/L and other global observables of elliptical (E) and lenticul ar (S0) galaxies.
M. Cappellari   +14 more
semanticscholar   +1 more source

The total mass of the early-type galaxy NGC 4649 (M60) [PDF]

open access: yesSerbian Astronomical Journal, 2008
In this paper the problem of the total mass and the total mass-to-light ratio of the early-type galaxy NGC 4649 (M60) is analyzed. Use is made of two independent techniques: the X-ray methodology which is based on the temperature of the X-ray halo of NGC
Samurović S., Ćirković M.M.
doaj   +3 more sources

Mass Stratification in the Globular Cluster System Revealing the Assembly History of the Nearest S0 Galaxy NGC 3115

open access: yesThe Astrophysical Journal
Galaxy 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
doaj   +1 more source

Star Formation in the Lopsided Galaxy Arp 291

open access: yesThe Astrophysical Journal
We 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
doaj   +1 more source

Spectroscopic bulge-disc decomposition: a new method to study the evolution of lenticular galaxies [PDF]

open access: yes, 2012
A new method for spectroscopic bulge–disc decomposition is presented, in which the spatial light profile in a two-dimensional spectrum is decomposed wavelength by wavelength into bulge and disc components, allowing separate one-dimensional spectra for ...
E. Johnston   +3 more
semanticscholar   +1 more source

Understanding the Fundamental Plane and the Tully Fisher Relation

open access: yesFrontiers in Astronomy and Space Sciences, 2020
The relation between early type galaxy size, surface brightness and velocity dispersion, “the fundamental plane,” has long been understood as resulting from equilibrium in their largely pressure supported stellar dynamics.
Jeremy Mould
doaj   +1 more source

PGC 44685: A Dwarf Star-forming Lenticular Galaxy with a Wolf–Rayet Population

open access: yesThe Astrophysical Journal
Lenticular galaxies (S0s) are formed mainly from the gas stripping of spirals in the cluster. But how S0s form and evolve in the field is still in need of being resolved.
Shiying Lu   +10 more
doaj   +1 more source

Abundant Molecular Gas in the Central Region of Lenticular Galaxy PGC 39535

open access: yesThe Astrophysical Journal
Lenticular galaxies (S0s) in the local Universe are generally absent of recent star formation and lack molecular gas. In this paper, we investigate one massive ( M _* ∼ 5 × 10 ^10 M _⊙ ) star-forming S0, PGC 39535, with the Northern Extended Millimeter ...
Jiantong Cui   +5 more
doaj   +1 more source

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