4 papers
Fourth-order galaxy-galaxy-lensing: Theoretical framework and direct estimation
Jonathan Oel, Lucas Porth, Peter Schneider +1
Traditional galaxy-galaxy lensing is a well-established method of probing the statistical properties of the Universe's matter and galaxy distribution. However, this measure does no…
The SRG/eROSITA All-Sky Survey -Band Follow-Up Observations for Selected High-Redshift Galaxy Cluster Candidates
N. Zimmermann, M. Kluge, S. Grandis +21
We select galaxy cluster candidates from the high-redshift (BEST_Z > 0.9) end of the first SRG/eROSITA All-Sky Survey (eRASS1) galaxy cluster catalogue, for which we obtain moderat…
Towards an application of fourth-order shear statistics II: Efficient estimation of fourth-order shear correlation functions and an application to the DES Y3 data
Lucas Porth, Elena Silvestre-Rosello, Peter Schneider +1
Higher-order lensing statistics contain a wealth of cosmological information that is not captured by second-order statistics. Stage-III lensing surveys have sufficient statistical…
Towards an application of fourth-order shear statistics I. The information content of
Elena Silvestre-Rosello, Lucas Porth, Peter Schneider +4
Higher-order shear statistics contain part of the non-Gaussian information of the projected matter field and therefore can provide additional constraints on the cosmological parame…