8 citations
- Nagoya UniversityJP2 papers
- California Institute of TechnologyUS1 paper
- Carnegie ObservatoriesUS1 paper
- Center for Astrophysics Harvard & SmithsonianUS1 paper
- Ehime UniversityJP1 paper
- Kobe UniversityJP1 paper
- Kyoto UniversityJP1 paper
- Max Planck Institute for Extraterrestrial PhysicsDE1 paper
- Osaka City UniversityJP1 paper
- Space Telescope Science InstituteUS1 paper
- University of ArizonaUS1 paper
- University of Maryland, Baltimore CountyUS1 paper
Showing 2009Show all
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astro-ph.CO2009
Observational Limits on Type 1 AGN Accretion Rate in COSMOS
Jonathan R. Trump, Chris D. Impey, Brandon C. Kelly +13
We present black hole masses and accretion rates for 182 Type 1 AGN in COSMOS. We estimate masses using the scaling relations for the broad Hb, MgII, and CIV emission lines in the…
math.HO2009
Representation of One as the Sum of Unit Fractions
Yuya Dan
One is expressed as the sum of the reciprocals of a certain set of integers. We give an elegant proof to the fact applying the polynomial theorem and basic calculus.