output
19932026
most citedThe Cosmological Constant and Dark Energy

5.2k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2012 · astro-ph.COShow all

7 papers · 2 filters

astro-ph.CO2012★ 22 cited

Constraints on dark energy from the Lyα forest baryon acoustic oscillations measurement of the redshift 2.3 Hubble parameter

Omer Farooq, Bharat Ratra

We use the Busca et al. (2012) measurement of the Hubble parameter at redshift z = 2.3 in conjunction with 21 lower z measurements, from Simon et al. (2005), Gaztanaga et al. (2009…

astro-ph.CO2012★ 88 cited

Hubble parameter measurement constraints on dark energy

Omer Farooq, Data Mania, Bharat Ratra

We use 21 Hubble parameter versus redshift data points, from Gaztañaga et al. (2009), Stern et al. (2010), and Moresco et al. (2012), to place constraints on model parameters of co…

astro-ph.CO2012★ 52 cited

Constraining primordial magnetic fields through large scale structure

Tina Kahniashvili, Yurii Maravin, Aravind Natarajan +2

We study primordial magnetic field effects on the matter perturbations in the Universe. We assume magnetic field generation prior to the big bang nucleosynthesis (BBN), i.e. during…

astro-ph.CO2012★ 12 cited

Forecasting cosmological parameter constraints from near-future space-based galaxy surveys

Anatoly Pavlov, Lado Samushia, Bharat Ratra

The next generation of space-based galaxy surveys are expected to measure the growth rate of structure to about a percent level over a range of redshifts. The rate of growth of str…

astro-ph.CO2012★ 48 cited

Evolution of inflation-generated magnetic field through phase transitions

Tina Kahniashvili, Axel Brandenburg, Leonardo Campanelli +2

We study the evolution of an inflation-generated magnetic field, due to its coupling to fluid motions, during cosmological phase transitions. We find that the magnetic field stays…

astro-ph.CO2012★ 59 cited

The impact of a new median statistics prior on the evidence for dark radiation

Erminia Calabrese, Maria Archidiacono, Alessandro Melchiorri +1

Recent analyses that include cosmic microwave background (CMB) anisotropy measurements from the Atacama Cosmology Telescope and the South Pole Telescope have hinted at the presence…

astro-ph.CO2012★ 2 cited

Reconstructing f(R) model from Holographic DE: Using the observational evidence

Kh. Saaidi, A. Aghamohammadi

We investigate the corresponding relation between gravity and an interacting holographic dark energy. By obtaining conditions needed for some observational evidence such as,…