Stellar Dynamics in Galaxies and Galaxy Clusters
{'Code': '03020400', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'AST', 'LongName': 'Division Of Astronomical Sciences'}}
{'SignBlockName': 'Millissa J. Evans', 'PO_EMAI': None, 'PO_PHON': None}
A variety of stellar dynamical problems which bear on cosmology                 will be investigated.                                                                                                                                           A maximum entropy - orbit based galaxy modelling technique will be              used to redetermine mass to light ratios (M/L's) in elliptical                  galaxies. Methods will be developed to attempt to resolve whether               the velocity dispersion tensor in ellipticals becomes more                      tangential with increasing radius, or whether the ellipticals have              massive halos.  The dynamics of stellar systems with twisted                    isophotes will be explored considering the (neglected) possibility              that there are real internal misalignments of different                         components. The dynamical consequences of the recent results                    indicating very large M/L's in galactic nuclei will be studied.                                                                                                 Previous work on the formation of clusters will be extended to                  different cosmologies by treating the dark matter separately from               the galaxies.  The purpose of these numerical simulations will                  be to explore the separation of dark matter from luminous matter                during cluster formation and evolution, to understand better                    whether cluster profiles can be used to estimate the mass density               of the Universe, to study the formation of disk galaxies and the                evolution of galaxy mass and luminosity functions, and to attempt               to understand whether subclustering can be used as a cosmological               probe.
{'FirstName': 'Douglas', 'LastName': 'Richstone', 'PI_MID_INIT': 'O', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Douglas O Richstone', 'EmailAddress': 'dor@umich.edu', 'NSF_ID': '000235631', 'StartDate': '07/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Regents of the University of Michigan - Ann Arbor', 'CityName': 'ANN ARBOR', 'ZipCode': '481091079', 'PhoneNumber': '7347636438', 'StreetAddress': '1109 GEDDES AVE, SUITE 3300', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Michigan', 'StateCode': 'MI', 'CONGRESSDISTRICT': '06', 'CONGRESS_DISTRICT_ORG': 'MI06', 'ORG_UEI_NUM': 'GNJ7BBP73WE9', 'ORG_LGL_BUS_NAME': 'REGENTS OF THE UNIVERSITY OF MICHIGAN', 'ORG_PRNT_UEI_NUM': None}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '1217', 'Text': 'EXTRAGALACTIC ASTRON & COSMOLO'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8720028.xml'}