Journal Club


"Exploring the correlations between galaxy properties and environment in the cosmic web using marked statistics"

Unnikrishnan Sureshkumar (University of the Witwatersrand, Johannesburg, South Africa)

Galaxies live in dark matter haloes and hence the galaxy properties are majorly defined by the properties of the haloes. Thus the environmental dependence of dark matter halo properties prompts a correlation between galaxy properties and the environment. In this talk, I will discuss the results from our works (arXiv:2102.04177 and arXiv:2201.10480) that explored how luminosities in optical to mid-infrared bands, stellar mass, and star formation rate are correlated with the environment. We use a set of stellar mass-selected and 3.4 μm luminosity-selected galaxies from the Galaxy and Mass Assembly (GAMA) survey. We utilize the galaxy two-point correlation functions and marked correlation functions to investigate the environmental correlations. I will also discuss the impact of various selection effects on the galaxy clustering measurements. Additionally, I will show the results of our ongoing work with data from simulations.


"Changing looks of the nuclei of Seyfert galaxies NGC 1566, NGC 3516 and NGC 2617"

Victor Oknyansky (University of Haifa)

"Reproducing the iron emission of type 1 AGN"

Dragana Ilic (University of Belgrade)