Eduardo Guerras
0000-0001-5534-4458
3 papers found
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The Vanishing and Appearing Sources during a Century of Observations Project. I. USNO Objects Missing in Modern Sky Surveys and Follow-up Observations of a “Missing Star”
Measuring Supermassive Black Hole Masses: Correlation between the Redshifts of the Fe iii UV Lines and the Widths of Broad Emission Lines
Systematic Redshift of the Fe iii UV Lines in Quasars: Measuring Supermassive Black Hole Masses under the Gravitational Redshift Hypothesis
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