We predict the acceleration of the Local Group generated by the 2MASS Redshift Survey within the framework of LambdaCDM and the halo model of galaxies. We show that as the galaxy fluctuations derived...
Peculiar velocities into the next generation: cosmological parameters from the SFI++ survey (2009)
Abate, Alexandra, Erdogdu, Pirin
We present cosmological parameter constraints from the SFI++ galaxy peculiar velocity survey, the largest galaxy peculiar velocity sample to date. The analysis is performed by using the gridding...
We report a direct observational evidence for the existence of the galaxy spin alignments with the real space tidal field. We calculate the real space tidal field from the real space density field...
Scale-dependent Galaxy Bias (2007)
We present a simple heuristic model to demonstrate how feedback related to the galaxy formation process can result in a scale-dependent bias of mass versus light, even on very large scales. The model...
Reconstructed Density and Velocity Fields from the 2MASS Redshift Survey (2006)
Erdogdu, Pirin, Lahav, Ofer, Huchra, John P., Colless, Matthew, Cutri, Roc M., Falco, Emilio, ...
We present the reconstructed real-space density and the predicted velocity fields from the Two Mass Redshift Survey (2MRS). The 2MRS is the densest all-sky redshift survey to date and includes about...
The 2dF Galaxy Redshift Survey: Wiener reconstruction of the cosmic web (2004)
Erdogdu, Pirin, Lahav, Ofer, Zaroubi, Saleem, Efstathiou, George P., Moody, Stephen J., Peacock, John A., ...
We reconstruct the underlying density field of the Two-degree Field Galaxy Redshift Survey (2dFGRS) for the redshift range 0.035 < z < 0.200 using the Wiener filtering method. The Wiener filter...
The 2dF Galaxy Redshift Survey: Wiener reconstruction of the cosmic web (2004)
Erdogdu, Pirin, Lahav, Ofer, Zaroubi, Saleem, Efstathiou, George P., Moody, Stephen J., Peacock, John A., ...
We reconstruct the underlying density field of the Two-degree Field Galaxy Redshift Survey (2dFGRS) for the redshift range 0.035 < z < 0.200 using the Wiener filtering method. The Wiener filter...
The 2dF Galaxy Redshift Survey: Wiener Reconstruction of the Cosmic Web (2003)
Erdogdu, Pirin, Lahav, Ofer, Zaroubi, Saleem, Efstathiou, George, Moody, Steve, Peacock, John A., ...
We reconstruct the underlying density field of the 2 degree Field Galaxy Redshift Survey (2dFGRS) for the redshift range 0.035
Erdogdu, Pirin, Ettori, Stefano, Lahav, Ofer
We use a generalised procedure for the combined likelihood analysis of different cosmological probes, the `Hyper-Parameters' method, that allows freedom in the relative weights of the raw...