Qualifications & Memberships
My research interests are in high-energy astrophysics and cosmology. I am particularly interested in finding non-gravitational evidence for dark matter. This has led me to investigate the astrophysics of the Galactic Center. It is there that the non-gravitational signatures of dark matter are likely to be largest but unfortunately, there are also a lot of astrophysical processes taking place in that location. These processes have to be accurately accounted for before one can determine if there is any residual dark matter self-annihilation signal.
- Coleman B., Paterson D., Gordon C., MacIas O. and Ploeg H. (2020) Maximum entropy estimation of the Galactic bulge morphology via the VVV Red Clump. Monthly Notices of the Royal Astronomical Society 495(3): 3350-3372. http://dx.doi.org/10.1093/mnras/staa1281.
- Paterson D., Coleman B. and Gordon C. (2020) Non-parametric density reconstruction of the Galactic bulge area using red clump stars in the VVV survey. Monthly Notices of the Royal Astronomical Society 499(2): 1937-1947. http://dx.doi.org/10.1093/mnras/staa2834.
- Ploeg H., Gordon C., Crocker R. and Macias O. (2020) Comparing the galactic bulge and galactic disk millisecond pulsars. Journal of Cosmology and Astroparticle Physics 2020(12) http://dx.doi.org/10.1088/1475-7516/2020/12/035.
- Macias O., Horiuchi S., Kaplinghat M., Gordon C., Crocker RM. and Nataf DM. (2019) Strong evidence that the galactic bulge is shining in gamma rays. Journal of Cosmology and Astroparticle Physics 2019(9) http://dx.doi.org/10.1088/1475-7516/2019/09/042.
- Macias O., Gordon C., Crocker R., Coleman B., Paterson D., Horiuchi S. and Pohl M. (2018) Galactic bulge preferred over dark matter for the Galactic centre gamma-ray excess. Nature Astronomy http://dx.doi.org/10.1038/s41550-018-0414-3.