Results 1 to 10 of about 151,849 (119)

S-PLUS: LEnticular Galaxies in Stripe 82 (LEGS82) [PDF]

Anais da Academia Brasileira de Ciências
This work is a Brazilian-Indian collaboration. It aims at investigating the structural properties of Lenticular galaxies in the Stripe 82 using a combination of S-PLUS (Southern Photometric Local Universe Survey) and SDSS data.
ARIANNA CORTESI, KANAK SAHA, FABRICIO FERRARI, GEFERSON LUCATELLI, CLAUDIA M. DE OLIVEIRA, SURAJ DHIWAR, CLECIO R. BOM, LUCIANA OLIVIA DIAS   +7 more
doaj   +2 more sources

Elliptical galaxies: Rotationally distorted, after all [PDF]

Serbian Astronomical Journal, 2009
On the basis of earlier investigations on homeoidally striated Mac Laurin spheroids and Jacobi ellipsoids (Caimmi and Marmo 2005, Caimmi 2006a, 2007), different sequences of configurations are defined and represented in the ellipticity-rotation plane ...
Caimmi R.
doaj   +3 more sources

Characterising the formation and evolution of S0-galaxies (CaFES-0): Revealing the origin of the mass-size relation of S0 galaxies

Astronomy & Astrophysics
We investigated the structural evolution and formation pathways of lenticular (S0) galaxies using the Hydrangea suite of cosmological hydrodynamical simulations. Simulated galaxies reproduce the observed mass–size relation from the SAMI and MaNGA surveys,
Pallero Diego, Jaffé Yara L., Fraser-McKelvie Amelia, Coccato Lodovico, Gómez Facundo A., Johnston Evelyn J., Lima-Dias Ciria, De Rossi Maria Emilia, Montaguth Gissel P.   +8 more
doaj   +1 more source

Hot Gaseous Halos in Early Type Galaxies

Galaxies, 2017
The hot gas in early type galaxies (ETGs) plays a crucial role in their formation and evolution. As the hot gas is often extended to the outskirts beyond the optical size, the large scale structural features identified by Chandra (including cavities ...
Dong-Woo Kim
doaj   +1 more source

Phenomenological approach to the modelling of elliptical galaxies: The problem of the mass-to-light ratio [PDF]

Serbian Astronomical Journal, 2007
In this paper the problem of the phenomenological modelling of elliptical galaxies using various available observational data is presented. Recently, Tortora, Cardona and Piedipalumbo (2007) suggested a double power law expression for the global ...
Samurović S.
doaj   +1 more source

Globular cluster systems of lenticular galaxies in low-density environments

Astronomy & Astrophysics
Context. Globular clusters (GCs) are key tracers of galaxy formation, but their relationship with stellar mass (M⋆) shows unresolved environmental dependencies.
De Bortoli B. J., Caso J. P., Bassino L. P.   +2 more
doaj   +1 more source

The level of photometry is the basic level of the Hungarian galaxy [PDF]

مجلة التربية والعلم, 2007
The photometric and fundamental plane for a sample of early type galaxies(elliptical and lenticular galaxies) which belongs to Virgo cluster have been calculated by fitting the Sersic model ( r1/n-model) to the surface brightness profiles along the major
Mohsen Ali, Saad Younis
doaj   +1 more source

Morphology Classification for Galaxies in the Kilo Degree Survey Using a Label-efficient Self-supervised Learning Framework

The Astrophysical Journal Supplement Series
Galaxy morphology classification is fundamental to understanding galaxy formation and evolution. The advent of large-scale sky surveys has produced an unprecedented volume of galaxy images, making traditional manual classification impractical.
Xu Huang, Rui Li, Liang Gao, Liqing Chen, Hui Li, Huijun Mu, Hao Su, Fucheng Zhong, Zhenping Yi, Xiaoyue Cao, Ran Li, Haicheng Feng, Nicola N. Napolitano, Yue Dong, Yida Deng, Sihan Li, Kang Jiao   +16 more
doaj   +1 more source

Morphologies for DECaLS galaxies through a combination of nonparametric indices and machine learning methods

Astronomy & Astrophysics
Context. Galaxy morphology encodes key information about formation and evolution. Large imaging surveys require automated, reproducible methods beyond visual inspection.
Sampaio V. M., Jaffé Y., Lima-Dias C., Véliz Astudillo S., Martínez-Marín M., Méndez-Hernández H., Herrera-Camus R., Monachesi A.   +7 more
doaj   +1 more source

Low dark matter content of the nearby early-type galaxy NGC 821 [PDF]

Serbian Astronomical Journal, 2014
In this paper we analyze the kinematics and dynamics of the nearby early-type galaxy NGC 821 based on its globular clusters (GCs) and planetary nebulae (PNe).
Samurović S., Vudragović A., Jovanović M., Ćirković M.M.   +3 more
doaj   +1 more source