teresa

A comparison of the X-ray line and continuum morphology of Cassiopeia A

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We present deconvolved narrow band images of Cas A as observed by the MECS instrument on the BeppoSAX X-ray satellite.

Experimental Status of Photon Photon into Baryon Antibaryon Pairs

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The exclusive production of baryon antibaryon pairs in the collisions of two quasi-real photons have been studied in different experiments

Top Events in Philadelphia's Countryside in Fall 2019

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Group behind Philly Beer Week is changing its name, cuz Philly loves beer

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Sherrill signs a law protecting reproductive and gender-affirming healthcare

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Penn Mutual Chairman and CEO Eileen C. McDonnell Receives 2021 Paradigm Award – The Chamber of Commerce for Greater Philadelphia

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Philly Chit Chat -

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Team Clean Founder and President Donna Allie to Receive 2022 Paradigm Award – The Chamber of Commerce for Greater Philadelphia

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Seven problems related to the determination of the primordial helium abundance

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Recent advances on the quest to determine the primordial or pregalactic helium abundance, Yp, are reviewed. There are seven problems