Observatory of Trieste
Presentation, Google meet conference, Observatory of Trieste
Invited talk for the Cluster Cosmology group of the Observatory of Trieste.
Talks and presentations
Brown University
Presentation, Zoom conference, Brown University
I was invited to give a talk at Brown University, Providence, RI, for the Astrophysics and Cosmology group, but due to the pandemic, it got moved to a zoom talk instead. I presented a talk on how to use galaxy clusters as cosmological probes and focused on the recent papers https://arxiv.org/pdf/1910.07664.pdf and https://arxiv.org/pdf/1912.04414.pdf.
SBU Open Night
Presentation, Stony Brook University, Stony Brook University
The astronomy department at the Stony Brook University has monthly open nights for the public where a resident astronomer talks about his/her work or recent developments in astronomy. I discussed what galaxy clusters are, how they are found in observations and how they are interesting objects from a cosmological perspective. Then I went into more detail how cluster masses may be measured with gravitational lensing. Deep photometric observations of the cluster are required to obtain accurate shape measurements and reliable photometric redshift estimates. Finally I described what sources of systematic uncertainty have to be taken into account.
LSST-DESC
Presentation, LSST-DESC Collaboration meeting, Tucson, Arizona
As a member of LSST-DESC I attended the collaboration meeting held at the University of Arizona in Tucson, Arizona at the end of January 2020. The meeting was an occasion for all members to update on ongoing work related to science that is directly related to operations of the Vera C. Rubin Telescope or of general interest to the science goals.
Sesto
Presentation, Sesto cluster conference, Sesto, Italy
I attended the meeting in Sesto, Italy. Tracing cosmic evolution with clusters of galaxies is a conference on the physics of galaxy clusters in theoretical simulations and multiwavelength observations. I presented a talk on the progress of weak lensing masses for a sample of 100 clusters and the difficulty in obtaining accurate mass estimates with weak lensing when statistical errors are decreasing. I specifically addressed selection biases that may arise when the selection of the clusters depends on the orientation of the halo.
IPMU Tokyo
Presentation, IPMU, Tokyo, Japan
During my visit to IPMU in Tokyo, Japan I presented my ongoing work on weak lensing masses for 100 clusters and the scaling relations with baryonic observables.
Stanford tea talk
Talk, Stanford University, Palo Alto, California
During my visit to a collaborator at Stanford I discussed my ongoing work on weak lensing masses and scaling relations.
Snowcluster
Presentation, Snowcluster conference, Snowbird, Utah
I attended the SnowCluster meeting in Snowbird, Utah. SnowCluster is a conference on the physics of galaxy clusters in theoretical simulations and multiwavelength observations. I presented a talk on the progress of weak lensing masses for a sample of 100 clusters and the difficulty in obtaining accurate mass estimates with weak lensing when statistical errors are decreasing.
GravLens
Presentation, GravLens conference, Leiden, The Netherlands
I attended the GravLens meeting in Leiden, The Netherlands. This meeting was held to discuss the past century since the theory of general relativity was first postulated. I presented a talk on the shear measurement algorithm SNAPG which I had just published.
GREAT4
Presentation, Snowcluster conference, UPenn, Philadelphia, Pennsylvania
I attended the brainstorm meeting about GREAT4 and presented my work on the ongoing KiDS shear calibration and the CCCP shear calibration. Discussed at the meeting were the requirements for shear calibration for ongoing large area optical surveys and possibilities for another community-wide shear calibration challenge.