BEGIN:VCALENDAR VERSION:2.0 PRODID:-//chikkutakku.com//RDFCal 1.0//EN X-WR-CALDESC:GoogleカレンダーやiCalendar形式情報を共有シェ アしましょう。近所のイベントから全国のイベントま で今日のイベント検索やスケジュールを決めるならち っくたっく X-WR-CALNAME:ちっくたっく X-WR-TIMEZONE:UTC BEGIN:VEVENT SUMMARY:Seminar\, Fumihiro Naokawa (直川 史寛\, Tohoku U.) DTSTART;VALUE=DATE-TIME:20260430T043000Z DTEND;VALUE=DATE-TIME:20260430T053000Z UID:188946311828 DESCRIPTION:Title : In the Era of Systematics-Limited Cosmology\nIn modern cosmology\, several observational “tensions” have emerged as major to pics of interest. From a theoretical perspective\, these tensions provide intriguing hints of new physics beyond the standard framework. However\, t o make such discussions robust\, it is crucial to reduce observational unc ertainties as much as possible. Even when statistical errors are sufficien tly small for discrepancies to be considered “tensions\,” there always remains the possibility that they are driven by systematic errors. In thi s seminar\, I will introduce myself and research which I have been involve d in\, aiming to mitigate systematic errors of Hubble tension\, cosmic bir efringence\, and the optical depth.\n\ncf.\n\nF. Naokawa\, PRL 136\, 04100 4\nY. Kageura\, M. Ouchi\, F. Naokawa et al. arXiv 2601.09644 LOCATION:721 END:VEVENT END:VCALENDAR