The T Tauri Stars and the Pre-Main Sequence Evolution of    Low Mass Stars
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During their approach to the main sequence in the Hertzsprung-                  Russel diagram, newly formed low mass stars pass through the T                  Tauri phase, which is characterized by mass loss, extreme                       emission lines in their spectra, and rapid variability.  The                    Principal Investigators propose to continue with their                          observational study of the so-called "naked" T Tauri stars, which               distinguish themselves from the classical T Tauri stars by not                  having any circumstellar disks (hence, the term "naked") and by                 the emission of X-rays.  They plan to get information about the                 initial mass function of low mass stars, the rate of loss of                    circumstellar material from newly formed stars, and the formation               of planetary systems.
[{'FirstName': 'Alexander', 'LastName': 'Brown', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Alexander Brown', 'EmailAddress': 'ab@casa.colorado.edu', 'NSF_ID': '000416433', 'StartDate': '02/01/1989', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}, {'FirstName': 'Frederick', 'LastName': 'Walter', 'PI_MID_INIT': 'M', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Frederick M Walter', 'EmailAddress': 'frederick.walter@stonybrook.edu', 'NSF_ID': '000096527', 'StartDate': '02/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}]
{'Name': 'University of Colorado at Boulder', 'CityName': 'Boulder', 'ZipCode': '803090001', 'PhoneNumber': '3034926221', 'StreetAddress': '3100 MARINE ST', 'StreetAddress2': 'STE 481 572 UCB', 'CountryName': 'United States', 'StateName': 'Colorado', 'StateCode': 'CO', 'CONGRESSDISTRICT': '02', 'CONGRESS_DISTRICT_ORG': 'CO02', 'ORG_UEI_NUM': 'SPVKK1RC2MZ3', 'ORG_LGL_BUS_NAME': 'THE REGENTS OF THE UNIVERSITY OF COLORADO', 'ORG_PRNT_UEI_NUM': None}
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