PSZ2 G091: A massive double cluster at z ~ 0.822 observed by the NIKA2 camera
PSZ2 G091: A massive double cluster at z ~ 0.822 observed by the NIKA2 camera
复制标题
PSZ2 G091:NIKA2 相机观测到 z ~ 0.822 处的巨大双星团
DOI:
10.1051/epjconf/202225700003
复制
发表时间:
2022
影响因子:
--
通讯作者:
Artis E
中科院分区:
文献类型:
--
作者:
Artis E
PSZ2 G091.83+26.11 is a massive galaxy cluster withM500= 7:43 × 1014M⊙atz= 0:822. This object exhibits a complex morphology with a clear bimodality observed in X-rays. However, it was detected and analysed in thePlancksample as a single, spherical cluster following a universal profile [1]. This model can lead to miscalculations of thermodynamical quantities, like the pressure profile. As future multiwavelength cluster experiments will detect more and more objects at higher redshifts (where we expect the fraction of merging objects to be higher), it is crucial to quantify this systematic effect. In this work, we use high-resolution observations of PSZ2 G091.83+26.11 by the NIKA2 camera to integrate the morphological characteristics of the cluster in our modelling. This is achieved by fitting a two-halo model to the SZ image and then by reconstruction of the resulting projected pressure profile. We then compare these results with the spherical assumption.
登录
查看更多内容
DOI:
--
发表时间:
2007
期刊:
--
影响因子:
--
作者:
通讯作者:
--
影响因子:
6.5
作者:
E. Artis;J. Melin;J. Bartlett;C. Murray
通讯作者:
C. Murray
DOI:
--
发表时间:
2019
期刊:
Streams of Consciousness
影响因子:
--
作者:
L. Gussak
通讯作者:
L. Gussak
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
影响因子:
6.5
作者:
Arnaud, M.;Pratt, G. W.;Pointecouteau, E.
通讯作者:
Pointecouteau, E.