Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Hütsi, G."'
Publikováno v:
A&A 647, A17 (2021)
We investigate the evolution of superclusters and supercluster cocoons (basins of attraction), and the influence of cosmological parameters to the evolution. We perform numerical simulations of the evolution of the cosmic web for different cosmologic
Externí odkaz:
http://arxiv.org/abs/2005.03480
Publikováno v:
A&A 652, A152 (2021)
Aims. Our goal is to find the relation between the two-point correlation functions (CFs) of projected and spatial density fields of galaxies in the context of the cosmic web. Methods. To investigate relations between spatial (3D) and projected (2D) C
Externí odkaz:
http://arxiv.org/abs/2004.03232
Publikováno v:
A&A 640, A47 (2020)
We calculated spatial correlation functions of galaxies, $\xi(r)$, structure functions, $g(r)=1 +\xi(r)$, gradient functions, $\gamma(r)= d \log g(r)/ d \log r$, and fractal dimension functions, $D(r)= 3+\gamma(r)$, using dark matter particles of the
Externí odkaz:
http://arxiv.org/abs/2002.02813
Publikováno v:
In Astronomy and Computing October 2022 41
The degeneracy between geometric (Alcock-Paczynski) and dynamic (redshift space) distortions in the pattern of the galaxy distribution has been a long standing problem in the study of the large scale structure of the universe. We examine the possibil
Externí odkaz:
http://arxiv.org/abs/1111.2544
Autor:
Einasto, J., Suhhonenko, I., Hütsi, G., Saar, E., Einasto, M., Liivamägi, L. J., Müller, V., Starobinsky, A. A., Tago, E., Tempel, E.
Publikováno v:
A&A 534, A128 (2011)
Our goal is to see how density waves of different scale combine to form voids between galaxy systems of various scale. We perform numerical simulations of structure formation in cubes of size 100 and 256 Mpc/h, with resolutions 256^3 and 512^3 partic
Externí odkaz:
http://arxiv.org/abs/1105.2464
Autor:
Suhhonenko, I., Einasto, J., Liivamägi, L. J., Saar, E., Einasto, M., Hütsi, G., Müller, V., Starobinsky, A. A., Tago, E., Tempel, E.
Publikováno v:
Astron.Astrophys:531,A149,2011
We follow the evolution of galaxy systems in numerical simulation. Our goal is to understand the role of density perturbations of various scales in the formation and evolution of the cosmic web. We perform numerical simulations with the full power sp
Externí odkaz:
http://arxiv.org/abs/1101.0123
Autor:
Einasto, J., Hütsi, G., Saar, E., Suhhonenko, I., Liivamägi, L. J., Einasto, M., Müller, V., Tago, A. A. Starobinsky E., Tempel, E.
Publikováno v:
Astronomy & Astrophysics, 531, A75 (2011)
According to the modern cosmological paradigm galaxies and galaxy systems form from tiny density perturbations generated during the very early phase of the evolution of the Universe. Using numerical simulations we study the evolution of phases of den
Externí odkaz:
http://arxiv.org/abs/1012.3550
Autor:
Einasto, M., Saar, E., Martinez, V. J., Einasto, J., Liivam"agi, L. J., Tago, E., Starck, J. -L., Mueller, V., Hein"am"aki, P., Nurmi, P., Paredes, S., Gramann, M., Huetsi, G.
Publikováno v:
Astrophys.J.685:83-104,2008
We present a morphological study of the two richest superclusters from the 2dF Galaxy Redshift Survey (SCL126, the Sloan Great Wall, and SCL9, the Sculptor supercluster). We use Minkowski functionals, shapefinders, and galaxy group information to stu
Externí odkaz:
http://arxiv.org/abs/0806.0325
Autor:
Einasto, J., Einasto, M., Tago, E., Saar, E., Huetsi, G., Jõeveer, M., Liivamägi, L. J., Suhhonenko, I., Jaaniste, J., Heinämäki, P., Mueller, V., Knebe, A., Tucker, D.
Publikováno v:
Astron.Astrophys.462:811,2007
We use the 2dF Galaxy Redshift Survey data to compile catalogues of superclusters for the Northern and Southern regions of the 2dFGRS, altogether 543 superclusters at redshifts 0.009 < z < 0.2. We analyse methods of compiling supercluster catalogues
Externí odkaz:
http://arxiv.org/abs/astro-ph/0603764