Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Saar, Enn"'
Autor:
Heinämäki, Pekka, Teerikorpi, Pekka, Douspis, Marian, Nurmi, Pasi, Einasto, Maret, Gramann, Mirt, Nevalainen, Jukka, Saar, Enn
Publikováno v:
A&A 668, A37 (2022)
Generally the dynamical state of superclusters is poorly known. We study properties of superclusters and select a sample of quasi-spherical superclusters, the dynamics of which can be studied using the $\Lambda$ significance diagram. We extracted our
Externí odkaz:
http://arxiv.org/abs/2210.13294
Autor:
Einasto, Maret, Gramann, Mirt, Park, Changbom, Kim, Juhan, Deshev, Boris, Tempel, Elmo, Heinämäki, Pekka, Lietzen, Heidi, Lähteenmäki, Anne, Einasto, Jaan, Saar, Enn
Publikováno v:
A&A 620, A149 (2018)
We study the dynamical state and properties of galaxies and groups in the supercluster SClA2142 that has a collapsing core, to understand its possible formation and evolution. We find the substructure of galaxy groups using normal mixture modelling.
Externí odkaz:
http://arxiv.org/abs/1810.12122
Autor:
Einasto, Maret, Deshev, Boris, Lietzen, Heidi, Kipper, Rain, Tempel, Elmo, Park, Changbom, Gramann, Mirt, Heinämäki, Pekka, Saar, Enn, Einasto, Jaan
Publikováno v:
A&A 610, A82 (2018)
We study galaxy populations and search for possible merging substructures in the rich galaxy cluster A2142. Normal mixture modelling revealed in A2142 several infalling galaxy groups and subclusters. The projected phase space diagram was used to anal
Externí odkaz:
http://arxiv.org/abs/1711.07806
Autor:
Libeskind, Noam I, van de Weygaert, Rien, Cautun, Marius, Falck, Bridget, Tempel, Elmo, Abel, Tom, Alpaslan, Mehmet, Aragoon-Calvo, Miguel A., Forero-Romero, Jaime E., Gonzalez, Roberto, Gottloober, Stefan, Hahn, Oliver, Hellwing, Wojciech A., Hoffman, Yehuda, Jones, Bernard J. T., Kitaura, Francisco, Knebe, Alexander, Manti, Serena, Neyrinck, Mark, Nuza, Sebastiaan E., Padilla, Nelson, Platen, Erwin, Ramachandra, Nesar, Robotham, Aaron, Saar, Enn, Shandarin, Sergei, Steinmetz, Matthias, Stoica, Radu S., Sousbie, Thierry, Yepes, Gustavo
Publikováno v:
MNRAS, 2018, volume 473, pages 1195-1217
The cosmic web is one of the most striking features of the distribution of galaxies and dark matter on the largest scales in the Universe. It is composed of dense regions packed full of galaxies, long filamentary bridges, flattened sheets and vast lo
Externí odkaz:
http://arxiv.org/abs/1705.03021
Autor:
Einasto, Maret, Lietzen, Heidi, Gramann, Mirt, Saar, Enn, Tempel, Elmo, Liivamägi, Lauri Juhan, Montero-Dorta, Antonio D., Streblyanska, Alina, Maraston, Claudia, Rubiño-Martín, José Alberto
Publikováno v:
A&A 603, A5 (2017)
We study the morphology, luminosity and mass of the superclusters from the BOSS Great Wall (BGW), a recently discovered very rich supercluster complex at the redshift $z = 0.47$. We have employed the Minkowski functionals to quantify supercluster mor
Externí odkaz:
http://arxiv.org/abs/1703.08444
Autor:
Einasto, Maret, Lietzen, Heidi, Gramann, Mirt, Tempel, Elmo, Saar, Enn, Liivamägi, Lauri Juhan, Heinämäki, Pekka, Nurmi, Pasi, Einasto, Jaan
Publikováno v:
A&A 595, A70 (2016)
In the cosmic web, galaxy superclusters or their high-density cores are the largest objects that may collapse at present or during the future evolution. We study the dynamical state and possible future evolution of galaxy superclusters from the Sloan
Externí odkaz:
http://arxiv.org/abs/1608.04988
Autor:
Arnalte-Mur, Pablo, Vielva, Patricio, Martínez, Vicent J., Sanz, José L., Saar, Enn, Paredes, Silvestre
Publikováno v:
JCAP03(2016)005
We present a full description of the N-probability density function of the galaxy number density fluctuations. This N-pdf is given in terms, on the one hand, of the cold dark matter correlations and, on the other hand, of the galaxy bias parameter. T
Externí odkaz:
http://arxiv.org/abs/1506.07794
Autor:
Gramann, Mirt, Einasto, Maret, Heinämäki, Pekka, Teerikorpi, Pekka, Saar, Enn, Nurmi, Pasi, Einasto, Jaan
Publikováno v:
A&A 581, A135 (2015)
The formation and evolution of the cosmic web in which galaxy superclusters are the largest relatively isolated objects is governed by a gravitational attraction of dark matter and antigravity of dark energy (cosmological constant). We study the char
Externí odkaz:
http://arxiv.org/abs/1506.05252
Autor:
Einasto, Maret, Gramann, Mirt, Saar, Enn, Liivamagi, Lauri Juhan, Tempel, Elmo, Nevalainen, Jukka, Heinamaki, Pekka, Park, Changbom, Einasto, Jaan
Publikováno v:
A&A 580, A69 (2015)
We study the distribution, masses, and dynamical properties of galaxy groups in the A2142 supercluster. We analyse the global luminosity density distribution in the supercluster and divide the supercluster into the high-density core and the low-densi
Externí odkaz:
http://arxiv.org/abs/1505.07233
Autor:
Einasto, Maret, Tago, Erik, Lietzen, Heidi, Park, Changbom, Heinamaki, Pekka, Saar, Enn, Song, Hyunmi, Liivamagi, Lauri Juhan, Einasto, Jaan
Publikováno v:
A&A 568, A46 (2014)
We trace the cosmic web at redshifts 1.0 <= z <= 1.8 using the quasar data from the SDSS DR7 QSO catalogue (Schneider et al. 2010). We apply a friend-of-friend (FoF) algorithm to the quasar and random catalogues to determine systems at a series of li
Externí odkaz:
http://arxiv.org/abs/1406.5578