Imaging and Spectroscopic Survey of Northern Wolf-Rayet Galaxies

Buckalew, Brent; Dufour, Reginald; Esteban, Cesar; Mendez, David; Rubin, Robert
Referencia bibliográfica

NOAO Proposal ID #1999B-0209

Advertised on:
8
1999
Número de autores
5
Número de autores del IAC
0
Número de citas
0
Número de citas referidas
0
Descripción
We are continuing a comprehensive systematic study of the properties of Wolf-Rayet (WR) galaxies based on data from ground and space observatories. In this proposal we request time on the KPNO 2.1m telescope to undertake CCD imagery and spectroscopy of a group of Northern WR galaxies. Our basic aim is threefold: identify and characterize the properties of WR galaxies, evaluate the effects that the enhanced populations of WR stars have on the ISM, and determine the age of these systems and why they are seen in this current state. We propose to obtain CCD imagery on the 2.1m to study the morphology and distribution of the ionized gas, and to locate the WR stellar populations. Then, we propose to follow-up with spectroscopy to determine physical conditions and abundances in the local ISM around the WR stars, the numbers and influence of the WR stars in the OB associations of these galaxies, the ages of the stellar associations with and without WR stars, and if the winds and radiation field of the WR population affect the magnitude of temperature fluctuations in the surrounding H II regions compared to ``normal'' OB associations.