16743
收藏DataCite Commons2023-04-21 更新2025-04-15 收录
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http://esdcdoi.esac.esa.int/doi/html/data/astronomy/hst/16743.html
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资源简介:
Space-based observations are on the cusp of a near-infrared (NIR) revolution comma with the imminent launch of the Webb telescope comma and the planned launch of the Roman (formerly WFIRST) telescope. This program aims to bridge the gap between the current and coming eras by simultaneously providing (1) the most accurate zero-point calibration of the Tip of the Red Giant Branch (TRGB) in the ACS-WFC F606W and F814W bands to date comma and (2) the first direct comma geometric calibration of the TRGB zero-point in space-based near-infrared (NIR) bandpasses (all previous calibrations were indirectly calibrated). We will accomplish this in only 16 orbits comma a small fraction of the HST time already invested into comparable calibrations (e.g. comma over 150 orbits dedicated to calibrating Cepheids in this galaxy) comma and at a much higher accuracy.
提供机构:
European Space Agency
创建时间:
2023-04-21



