122 citations · 145 across the 2 of their papers we have counts for
2 papers
physics.ao-ph2020★ 122 cited
Global Impact of COVID-19 Restrictions on the Atmospheric Concentrations of Nitrogen Dioxide and Ozone
Christoph A. Keller, Mat. J. Evans, K. Emma Knowland +10
Social-distancing to combat the COVID-19 pandemic has led to widespread reductions in air pollutant emissions. Quantifying these changes requires a business as usual counterfactual…
astro-ph2002★ 23 cited
X-Ray Spectra of Intermediate-Luminosity, Radio-Loud Quasars
Christa Hasenkopf, Rita Sambruna, Mike Eracleous
We present new hard X-ray spectra of three radio-loud AGNs of moderately high X-ray luminosity (L_x ~ 10^45 erg/s; PKS 2349-01, 3C 323.1, and 4C 74.26) obtained with ASCA and Beppo…