A Cross-Calibration between Tycho-2 Photometry and Hubble Space Telescope Spectrophotometry
DOI: 10.1086/430370
Bibcode: 2005PASP..117..615M
Maíz-Apellániz, J.
United States
Abstract
By analyzing a well-calibrated sample of 256 stars observed with both Hipparcos and HST, I show that Tycho-2 photometry and HST spectrophotometry are accurate and stable enough to obtain a precise cross-calibration. Based on this analysis, I obtain the following photometric zero points with respect to Vega for Tycho-2: 0.020+/-0.001 (BT-VT), 0.078+/-0.009 (BT), and 0.058+/-0.009 (VT).
2005
•
Publications of the Astronomical Society of the Pacific
Hipparcos
eHST
24