Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Tatiana F. Laganá"'
Autor:
Lorenzo Lovisari, Tatiana F. Laganá, Katharina Borm, Gerrit Schellenberger, Thomas H. Reiprich
Publikováno v:
Acta Polytechnica, Vol 53, Iss A (2013)
The baryonic composition of galaxy clusters and groups is dominated by a hot, X-ray emitting Intra-Cluster Medium (ICM). The mean metallicity of the ICM has been found to be roughly 0.3 ÷ 0.5 times the solar value, therefore a large fraction of this
Externí odkaz:
https://doaj.org/article/391173629c27437b9307a00dc3651faa
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 504:610-620
RXCJ0232.2–4420, at z = 0.28, is a peculiar system hosting a radio halo source around the cool-core of the cluster. To investigate its formation and nature, we used archival Chandra and XMM–Newton X-ray data to study the dynamical state of the cl
Autor:
Tatiana F. Laganá, Ignacio Ferreras, V. M. Sampaio, R. R. de Carvalho, Sandro Barboza Rembold, André L. B. Ribeiro
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 503:3065-3080
By way of the projected phase-space (PPS), we investigate the relation between galaxy properties and cluster environment in a subsample of groups from the Yang Catalog. The sample is split according to the gaussianity of the velocity distribution in
Autor:
R. Monteiro-Oliveira, Eduardo Serra Cypriano, Tatiana F. Laganá, G. B. Lima Neto, L. Doubrawa, Rubens E. G. Machado
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 495:2022-2034
Collision events lead to peculiar morphologies in the intracluster gas of galaxies clusters. That seems to be the case of Abell 1644, a nearby galaxy cluster, composed of three main structures: the southern cluster that exhibits a spiral-like morphol
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 487:3922-3934
We present a detailed analysis of two merging clusters, from XMM-\textit{Newton} X-ray archival data: PLCKESZ G036.7+14.9 ($z=0.15$; hereafter G036) and PLCK G292.5+22.0 ($z=0.30$; hereafter G292). We notice that the intracluster medium is heated as
Publikováno v:
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2019, 484 (2), pp.2807-2830. ⟨10.1093/mnras/stz148⟩
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 484 (2), pp.2807-2830. ⟨10.1093/mnras/stz148⟩
Mon.Not.Roy.Astron.Soc., 2019, 484 (2), pp.2807-2830. ⟨10.1093/mnras/stz148⟩
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 484 (2), pp.2807-2830. ⟨10.1093/mnras/stz148⟩
We analysed XMM-{\it Newton} EPIC data for 53 galaxy clusters. Through 2D spectral maps, we provide the most detailed and extended view of the spatial distribution of temperature (kT), pressure (P), entropy (S) and metallicity (Z) of galaxy clusters
Autor:
Tatiana F. Laganá, Melville P. Ulmer
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 475:523-531
We analyzed 17 galaxy clusters, and investigated, for the first time, the dependence of the SFR and sSFR as a function of projected distance (as a proxy for environment) and stellar mass for cluster galaxies in an intermediate-to-high redshift range
Autor:
Asif Iqbal, V. Parekh, Tatiana F. Laganá, Kshitij Thorat, K. J. van der Heyden, Florence Durret
Publikováno v:
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2020, 491 (2), pp.2605-2616. ⟨10.1093/mnras/stz3067⟩
Mon.Not.Roy.Astron.Soc., 2020, 491 (2), pp.2605-2616. ⟨10.1093/mnras/stz3067⟩
Clusters of varying mass ratios can merge and the process significantly disturbs the cluster environments and alters their global properties. Active radio galaxies are another phenomenon that can also affect cluster environments. Radio jets can inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8708e0b26490d7dcbabdef6bf3b6f22
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The integrated spectra of stellar systems contain a wealth of information, and its analysis can reveal fundamental parameters such as metallicity, age and star formation history. Widely used methods to analyze these spectra are based on comparing the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6cb09a36a5e28e7180e33f616c3f9fe7
Autor:
Jean-Charles Cuillandre, C. Adami, Rubens E. G. Machado, Tatiana F. Laganá, G. B. Lima Neto, Nicolas Martinet, Florence Durret
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2020, 641, pp.A95. ⟨10.1051/0004-6361/201936098⟩
Astronomy and Astrophysics-A&A, 2020, 641, pp.A95. ⟨10.1051/0004-6361/201936098⟩
Groups are the most common association of galaxies in the Universe, found in different configuration states such as loose, compact and fossil groups. We have studied the galaxy group MKW 4s, dominated by the giant early-type galaxy NGC 4104 at z=0.02