2010
DOI: 10.1051/0004-6361/200913843
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A multiwavelength strong lensing analysis of baryons and dark matter in the dynamically active cluster AC 114

Abstract: Context. Strong lensing studies can provide detailed mass maps of the inner regions even in dynamically active galaxy clusters. Aims. We illustrate the important role of a proper modelling of the intracluster medium, i.e., the main baryonic component. We demonstrate that the addition of a new contribution accounting for the gas can increase the statistical significance of the lensing model. Methods. We propose a parametric method for strong lensing analyses that exploits multiwavelength observations. The mass … Show more

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Cited by 23 publications
(38 citation statements)
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References 82 publications
(170 reference statements)
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“…In galaxies both lensing observations [49,50] and dynamical analyses, such as circular rotation curves in spiral galaxies [5] and velocity dispersions in early-type systems [43,51,52] have showed that dark matter is the dominant mass component not only in the outskirts but also in the very central regions. The same is found in galaxy clusters, where a large amount of dark matter is needed to explain the weak and strong lensing observations [7][8][9] as well as dynamical data like the velocity dispersion of the galaxies or the temperature profile of the X-ray emitting intracluster medium [53,54]. In these analyses almost the same amount of dark matter is required in both dynamical and lensing data.…”
Section: Discussionmentioning
confidence: 55%
“…In galaxies both lensing observations [49,50] and dynamical analyses, such as circular rotation curves in spiral galaxies [5] and velocity dispersions in early-type systems [43,51,52] have showed that dark matter is the dominant mass component not only in the outskirts but also in the very central regions. The same is found in galaxy clusters, where a large amount of dark matter is needed to explain the weak and strong lensing observations [7][8][9] as well as dynamical data like the velocity dispersion of the galaxies or the temperature profile of the X-ray emitting intracluster medium [53,54]. In these analyses almost the same amount of dark matter is required in both dynamical and lensing data.…”
Section: Discussionmentioning
confidence: 55%
“…Carlberg et al 1997;van der Marel et al 2000;Biviano & Girardi 2003) or based on the other methods (e.g. Cirimele et al 1997;Parker et al 2005;Sereno et al 2010). …”
Section: Discussionmentioning
confidence: 99%
“…Observationally, there are lots of controversies in the literature on whether satellite galaxies unbiasedly trace the underlying mass distribution in galaxy clusters/groups. Some studies conclude that the satellite (luminosity) distribution traces the mass distribution (Tyson & Fischer 1995;Squires et al 1996;Fischer & Tyson 1997;Cirimele et al 1997;Carlberg et al 1997;van der Marel et al 2000;Rines et al 2001;Tustin et al 2001;Biviano & Girardi 2003;Lokas & Mamon 2003;Kneib et al 2003;Biviano & Girardi 2003;Parker et al 2005;Popesso et al 2007;Sheldon et al 2009;Wojtak & Lokas 2010;Sereno et al 2010;Bahcall & Kulier 2014); whiles some studies suggest that the spatial distribution of satellites (luminosity) are less concentrated than that of matter (Rines et al 2000;Lin et al 2004;Hansen et al 2005;Nagai & Kravtsov 2005;Yang et al 2005;Budzynski et al 2012); still some claim luminosity distribution are actually more concentrated (Koranyi et al 1998;Carlberg et al 2001). …”
Section: Introductionmentioning
confidence: 99%
“…Here, we follow the formalism presented by Stark (1977), who first discussed the projection of an ideal triaxial galaxy onto the plane of the sky, and further developed by Binggeli (1980);Binney (1985). The formalism was later introduced in the context of gravitational lensing (Oguri, Lee & Suto 2003;Corless & King 2007;Sereno, Lubini & Jetzer 2010b;Sereno & Umetsu 2011) and multi-wavelengths analyses of galaxy clusters (De Filippis et al 2005;Sereno et al 2006;Sereno 2007;Buote & Humphrey 2012;Sereno, Ettori & Baldi 2012;Sereno et al 2013). Here, we review the main results in terms of the notation used in the present paper.…”
Section: Appendix A: Projectionmentioning
confidence: 99%