98 citations
4 papers
On the Conjecture
Emily J. Olson, Bruce E. Sagan
Let be a finite poset (partially ordered set), where has cardinality . Consider linear extensions of as permutations in one-line notation.…
Constraining Sterile Neutrino Warm Dark Matter with Chandra Observations of the Andromeda Galaxy
Casey R. Watson, Zhiyuan Li, Nicholas K. Polley
We use the Chandra unresolved X-ray emission spectrum from a 12'-28' (2.8-6.4 kpc) annular region of the Andromeda galaxy to constrain the radiative decay of sterile neutrino warm…
The Star Formation and Nuclear Accretion Histories of Normal Galaxies in the AGES Survey
Casey R. Watson, Christopher S. Kochanek, William R. Forman +15
We combine IR, optical and X-ray data from the overlapping, 9.3 square degree NOAO Deep Wide-Field Survey (NDWFS), AGN and Galaxy Evolution Survey (AGES), and XBootes Survey to mea…
Strong Upper Limits on Sterile Neutrino Warm Dark Matter
Hasan Yuksel, John F. Beacom, Casey R. Watson
Sterile neutrinos are attractive dark matter candidates. Their parameter space of mass and mixing angle has not yet been fully tested despite intensive efforts that exploit their g…