| Speaker: |
Masamune Oguri (IPMU) |
| Title: |
Dark matter distribution in clusters from strong+weak lensing |
| Date (JST): |
Thu, Jun 23, 2011, 13:30 - 15:00 |
| Place: |
Seminar Room A |
| Abstract: |
I will present ongoing work on the measurement of the dark matter distribution in clusters of galaxies using combined strong and weak lensing analysis. For this purpose I obtained Subaru/Suprime-cam images for nearly 30 clusters with prominent strong lensing features discovered by the Sloan Giant Arc Survey (SGAS). These clusters represent by far the largest sample of clusters for this kind of combined lensing analysis. In this talk I will highlight results on the mass-concentration relation, and also on the shape (ellipticity) of the projected mass distribution accurately measured by the stacked lensing technique.
|
