Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21542503h&link_type=abstract
American Astronomical Society, AAS Meeting #215, #425.03; Bulletin of the American Astronomical Society, Vol. 42, p.336
Astronomy and Astrophysics
Astronomy
Scientific paper
The primary aim of this exercise is to compare populations of Double White Dwarf (DWD) systems generated by using different published forms of the Galaxy's Initial Mass Function (IMF) and Star Formation Rate (SFR). We focus on writing a numerical code to synthesize a population of stars based on analytic expressions of the Galaxy's IMF and SFR. We then use a stellar evolution code developed by Hurley et al. (2002) to evolve these stars to the present epoch. We concentrate on the population of DWD systems that are expected to be strong sources of Gravitational Wave Radiation (GWR) and hence, ideal targets for the space-based GWR detector LISA. We analyze the distributions of these different DWD populations by plotting them in the GWR strain-frequency parameter space. We also compare the relative numbers of the different species (He-He, He-CO, CO-CO etc.) of DWD systems obtained using the different forms of the IMF.
This material is based upon work supported by the National Science Foundation under Grant No. 0431664.
Gokhale Vayujeet
Haralson Zach
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