COLLEGE PARK, Maryland, Aug. 9 -- Physical Review D, a journal that says it covers particles, fields, gravitation and cosmology from the American Physical Society, published research articles, including the following topics, in its Aug. 15, 2021 edition:

ARTICLES:

* Tidal deformabilities and radii of strange quark stars

* Search for continuous gravitational waves from small-ellipticity sources at low frequencies

* Black holes merging with low m . . .

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