R
Rachael M. Kratzer
Researcher at Drexel University
Publications - 7
Citations - 940
Rachael M. Kratzer is an academic researcher from Drexel University. The author has contributed to research in topics: Quasar & Redshift. The author has an hindex of 6, co-authored 7 publications receiving 859 citations.
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Journal ArticleDOI
Unification of luminous type 1 quasars through c iv emission
Gordon T. Richards,Nicholas E. Kruczek,Sarah C. Gallagher,Patrick B. Hall,Paul C. Hewett,Karen M. Leighly,Rajesh P. Deo,Rachael M. Kratzer,Yue Shen +8 more
TL;DR: In this paper, the authors investigate the anti-correlation between continuum luminosity and emission-line equivalent width (BEff) and the blueshifting of the high-ionization emission lines with respect to low-ionisation emission lines, using a sample of 30,000 quasars from the 7th Data Release of the Sloan Digital Sky Survey.
Journal ArticleDOI
Unification of Luminous Type 1 Quasars through CIV Emission
Gordon T. Richards,Nicholas E. Kruczek,Sarah Gallagher,Patrick B. Hall,Paul C. Hewett,Karen M. Leighly,Rajesh P. Deo,Rachael M. Kratzer,Yue Shen +8 more
TL;DR: In this paper, the authors investigated the anti-correlation between L_UV and emission line EQW (the Baldwin Effect) and the "blueshifting" of high-ionization emission lines.
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Mean and extreme radio properties of quasars and the origin of radio emission
TL;DR: In this paper, the authors investigated the evolution of radio-loud fraction and mean radio loudness of quasars using stacking analysis and found that the radio loud fraction increases with increasing optical/UV luminosity and decreasing redshift.
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Analyzing the Flux Anomalies of the Large-Separation Lensed Quasar SDSS J1029+2623
Rachael M. Kratzer,Gordon T. Richards,David M. Goldberg,Masamune Oguri,Christopher S. Kochanek,Jacqueline Hodge,Robert H. Becker,Robert H. Becker,Naohisa Inada +8 more
TL;DR: In this article, a high-resolution radio image was used to resolve the two fold image components B and C of the quasar lens system SDSS J1029+2623.
Journal ArticleDOI
Analyzing the flux anomalies of the large-separation lensed quasar sdss j1029+2623
Rachael M. Kratzer,Gordon T. Richards,David M. Goldberg,Masamune Oguri,Christopher S. Kochanek,Jacqueline Hodge,Robert H. Becker,Robert H. Becker,Naohisa Inada +8 more
TL;DR: In this article, the authors used a high-resolution radio image to resolve the two-fold image components B and C of the quasar lens system SDSS J1029+2623.