Sentences with phrase «extragalactic background radiation»
«Measurements of the extragalactic background radiation are always hard to get, because this signal is very faint and, as a result, its detection is strongly dependent on how well one can remove the sources of contamination,» says Angelica De Oliveira - Costa, an expert on cosmic background observations at the Massachusetts Institute of Technology.
https://www.scientificamerican.com/ Not exact matches
The correlation we observed is compatible with the hypothesis that the highest - energy particles originate from nearby extragalactic sources whose flux has not been substantially reduced by interaction with the cosmic background radiation.