Late Stages of Stellar Evolution
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Shipman shall continue his theoretical research on the chemical                 compositions of white-dwarf atmospheres.  The emphasis will be on               interrelating the observed abundance patterns via evolution and                 accretion processes, using appropriate models of the white-dwarf                atmospheres.  The research involves numerous collaborators.                                                                                                     When stars like the Sun exhaust their nuclear energy sources, they              shrink to about the size of the Earth.  New observations of such                stars, called white dwarfs, show that the chemical abundances in                their outer layers are much more varied than expected.  A good                  interpretation of these observations promises a much improved                   understanding of just how solar-like stars become white dwarfs.                 Shipman will interpret the observations using models of the stars,              of their atmospheres, and of gases that may accrete from companion              stars.
{'FirstName': 'Henry', 'LastName': 'Shipman', 'PI_MID_INIT': 'L', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Henry L Shipman', 'EmailAddress': 'harrys@udel.edu', 'NSF_ID': '000111371', 'StartDate': '05/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Delaware', 'CityName': 'NEWARK', 'ZipCode': '197160099', 'PhoneNumber': '3028312136', 'StreetAddress': '220 HULLIHEN HALL', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Delaware', 'StateCode': 'DE', 'CONGRESSDISTRICT': '00', 'CONGRESS_DISTRICT_ORG': 'DE00', 'ORG_UEI_NUM': 'T72NHKM259N3', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF DELAWARE', 'ORG_PRNT_UEI_NUM': 'T72NHKM259N3'}
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[{'Code': '1215', 'Text': 'STELLAR ASTRONOMY & ASTROPHYSC'}, {'Code': '9120', 'Text': 'CROSS-DIRECTORATE PROGRAMS'}]
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