120 citations · 342 across the 4 of their papers we have counts for
5 papers
HI in Group Interactions: HCG 44
Kelley M. Hess, M. E. Cluver, Sahba Yahya +5
Extending deep observations of the neutral atomic hydrogen (HI) to the environment around galaxy groups can reveal a complex history of group interactions which is invisible to stu…
HI galaxy simulations for the SKA: number counts and bias
Mario G. Santos, David Alonso, Philip Bull +2
This chapter describes the assumed specifications and sensitivities for HI galaxy surveys with SKA1 and SKA2. It addresses the expected galaxy number densities based on available s…
Cosmological performance of SKA HI galaxy surveys
S. Yahya, P. Bull, M. G. Santos +4
The Square Kilometre Array (SKA) will conduct the biggest spectroscopic galaxy survey ever, by detecting the 21cm emission line of neutral hydrogen (HI) from around a billion galax…
Null tests of the cosmological constant using supernovae
Sahba Yahya, Marina Seikel, Chris Clarkson +2
The standard concordance model of the Universe is based on the cosmological constant as the driver of accelerating expansion. This concordance model is being subjected to a growing…
Using H(z) data as a probe of the concordance model
Marina Seikel, Sahba Yahya, Roy Maartens +1
Direct observations of the Hubble rate, from cosmic chronometers and the radial baryon acoustic oscillation scale, can out-perform supernovae observations in understanding the expa…