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SUMMARY:No Cluster Left Behind: Multiwavelength Cluster Analysis with All 
 the Data
DTSTART;VALUE=DATE-TIME:20260721T020000Z
DTEND;VALUE=DATE-TIME:20260721T033000Z
DTSTAMP;VALUE=DATE-TIME:20260728T044200Z
UID:indico-event-5194@indico-tdli.sjtu.edu.cn
DESCRIPTION:Speakers: Conghao Zhou (UC Santa Cruz)\n\nHost: Ying Zu Join 
 Tencent Meeting：https://meeting.tencent.com/dm/tKLZITi2AoiC Meeting ID:
  385685839 (no password)Abstract: Cluster abundance is among the most pow
 erful cosmological probes\, but its constraining power is currently limite
 d by systematic uncertainties in mass calibration. Optically selected samp
 les in particular suffer from line-of-sight projection effects that bias b
 oth richness and lensing measurements. Jointly modeling clusters observed 
 across multiple wavelengths offers a path to self-calibrating these system
 atics — yet previous multiwavelength analyses have typically discarded c
 lusters lacking tSZ or X-ray counterparts\, sacrificing much of the sample
 's statistical power. In this talk\, I will present an analysis framework 
 that retains every cluster detected in at least one survey: no cluster lef
 t behind. Applying it to Dark Energy Survey and South Pole Telescope data\
 , I will show joint constraints on cluster mass calibration and optical pr
 ojection effects. I will conclude by looking forward to multiwavelength cl
 uster cosmology in the era of Rubin\, Roman\, SPT-3G\, and eROSITA. Biogr
 aphy:Conghao Zhou is a Ph.D. candidate in Physics at UC Santa Cruz. He is 
 interested in galaxy cluster cosmology\, low surface brightness photometry
 \, stellar halo science\, pixel-to-object pipelines\, and dwarf galaxies. 
 He is a member of the Rubin\, DES\, DESI\, and Merian collaborations.\n\nh
 ttps://indico-tdli.sjtu.edu.cn/event/5194/
LOCATION:Tsung-Dao Lee Institute/S4F-SW - Open Area (Tsung-Dao Lee Institu
 te)
URL:https://indico-tdli.sjtu.edu.cn/event/5194/
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