UBVRI-ZY and ugriz zeropoints from 19 calspec standards

Details UBVRI-ZY and ugriz zeropoints from 19 calspec standards UBVRI-ZY and ugriz zeropoints from 19 calspec standards

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010hstc.worke..75p&link_type=abstract

"2010 Space Telescope Science Institute Calibration Workshop - Hubble after SM4. Preparing JWST, held 21-23 July 2010 at Space T

Physics

Scientific paper

Synthesized UBVRI-ZY and ugriz zeropoints are presented, calibrated on 20 calspec standards with standard photometry and covering a wide range of color, from DA white dwarfs through G/K stars to VB8 (M7V). The zeropoint dispersions are 0.027, 0.020, 0.008, 0.014 and 0.016mag respectively in UBVRI, where the UMBMVCRCIC filter system profiles minimize these dispersions. V(Vega) is found to be 0.021±0.008mag from an average of 17 calspec standards, with Vega colors which are close to zero. Zeropoints for u & u' are found to be -0.03±0.02mag; those for griz and g'r'i'z' are 0.00±0.02mag.

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