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Title: The Wendelstein Weak Lensing (WWL) pathfinder: accurate weak lensing masses for Planck clusters

Abstract

We introduce results from the Wendelstein Weak Lensing (WWL) pathfinder project, in which we have observed three intermediate-redshift Planck clusters of galaxies with the new 30 arcmin × 30 arcmin wide field imager at the 2 m Fraunhofer Telescope at Wendelstein Observatory. We investigate the presence of biases in our shear catalogues and estimate their impact on our weak lensing mass estimates. The overall calibration uncertainty depends on the cluster redshift and is below 8.1–16 per cent for z ≈ 0.27–0.77. It will decrease with improvements on the background sample selection and the multiplicative shear bias calibration. This work shows the first weak lensing mass estimates for PSZ1 G109.88+27.94 and PSZ1 G139.61+24.20, two Sunyaev-Zeldovich (SZ)-selected cluster candidates. Based on Wendelstein colours and SDSS (Sloan Digital Sky Survey) photometry, we find that the redshift of PSZ1 G109.88+27.94 has to be corrected to z ≈ 0.77. We investigate the influence of line-of-sight structures on the weak lensing mass estimates and find upper limits for two groups in each of the fields of PSZ1 G109.88+27.94 and PSZ1 G186.98+38.66. We compare our results to SZ and dynamical mass estimates from the literature, and in the case of PSZ1 G186.98+38.66 to previous weak lensing massmore » estimates. We conclude that our pathfinder project demonstrates that weak lensing cluster masses can be accurately measured with the 2 m Fraunhofer Telescope.« less

Authors:
ORCiD logo [1]; ORCiD logo [2];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [3];  [3]
  1. Ludwig Maximilian Univ. of Munich (Germany); Max Planck Inst. fur Extraterrestrische Physik, Garching (Germany)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
  3. Ludwig Maximilian Univ. of Munich (Germany)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE; German Research Foundation (DFG); National Aeronautic and Space Administration (NASA)
OSTI Identifier:
1547229
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 486; Journal Issue: 1; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; gravitational lensing: weak; galaxies: clusters: general; cosmology: observations

Citation Formats

Rehmann, R. L., Gruen, D., Seitz, S., Bender, R., Riffeser, A., Kluge, M., Goessl, C., Hopp, U., Mana, A., Ries, C., and Schmidt, M. The Wendelstein Weak Lensing (WWL) pathfinder: accurate weak lensing masses for Planck clusters. United States: N. p., 2019. Web. doi:10.1093/mnras/stz817.
Rehmann, R. L., Gruen, D., Seitz, S., Bender, R., Riffeser, A., Kluge, M., Goessl, C., Hopp, U., Mana, A., Ries, C., & Schmidt, M. The Wendelstein Weak Lensing (WWL) pathfinder: accurate weak lensing masses for Planck clusters. United States. doi:10.1093/mnras/stz817.
Rehmann, R. L., Gruen, D., Seitz, S., Bender, R., Riffeser, A., Kluge, M., Goessl, C., Hopp, U., Mana, A., Ries, C., and Schmidt, M. Wed . "The Wendelstein Weak Lensing (WWL) pathfinder: accurate weak lensing masses for Planck clusters". United States. doi:10.1093/mnras/stz817.
@article{osti_1547229,
title = {The Wendelstein Weak Lensing (WWL) pathfinder: accurate weak lensing masses for Planck clusters},
author = {Rehmann, R. L. and Gruen, D. and Seitz, S. and Bender, R. and Riffeser, A. and Kluge, M. and Goessl, C. and Hopp, U. and Mana, A. and Ries, C. and Schmidt, M.},
abstractNote = {We introduce results from the Wendelstein Weak Lensing (WWL) pathfinder project, in which we have observed three intermediate-redshift Planck clusters of galaxies with the new 30 arcmin × 30 arcmin wide field imager at the 2 m Fraunhofer Telescope at Wendelstein Observatory. We investigate the presence of biases in our shear catalogues and estimate their impact on our weak lensing mass estimates. The overall calibration uncertainty depends on the cluster redshift and is below 8.1–16 per cent for z ≈ 0.27–0.77. It will decrease with improvements on the background sample selection and the multiplicative shear bias calibration. This work shows the first weak lensing mass estimates for PSZ1 G109.88+27.94 and PSZ1 G139.61+24.20, two Sunyaev-Zeldovich (SZ)-selected cluster candidates. Based on Wendelstein colours and SDSS (Sloan Digital Sky Survey) photometry, we find that the redshift of PSZ1 G109.88+27.94 has to be corrected to z ≈ 0.77. We investigate the influence of line-of-sight structures on the weak lensing mass estimates and find upper limits for two groups in each of the fields of PSZ1 G109.88+27.94 and PSZ1 G186.98+38.66. We compare our results to SZ and dynamical mass estimates from the literature, and in the case of PSZ1 G186.98+38.66 to previous weak lensing mass estimates. We conclude that our pathfinder project demonstrates that weak lensing cluster masses can be accurately measured with the 2 m Fraunhofer Telescope.},
doi = {10.1093/mnras/stz817},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 1,
volume = 486,
place = {United States},
year = {2019},
month = {3}
}

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