51 citations · 89 across the 3 of their papers we have counts for
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The uvbyHbeta Metallicity Calibration for G and K Dwarfs
B. A. Twarog, L. C. Vargas, B. J. Anthony-Twarog
The metallicity dependence of the primary indices of the uvby photometric system for cooler dwarfs (Teff ~ 6500 K to 5000K) is investigated. The data base for the analysis is compo…
Superluminous supernovae: No threat from Eta Carinae
Brian C. Thomas, Adrian L. Melott, Brian D. Fields +1
Recently Supernova 2006gy was noted as the most luminous ever recorded, with a total radiated energy of ~10^44 Joules. It was proposed that the progenitor may have been a massive e…
vbyCaHbeta CCD Photometry of Clusters. VIII. The Super-Metal Rich, Old Open Cluster NGC 6791
B. J. Anthony-Twarog, B. A. Twarog, L. Mayer
CCD photometry on the intermediate-band vbyCaHbeta system is presented for the metal-rich, old open cluster, NGC 6791. Preliminary analysis led to [Fe/H] above +0.4 with an anomalo…