Results 131 to 140 of about 26,451 (248)

Constraining cosmology and ionization history with combined 21 cm power spectrum and global signal measurements

, 2015
Improvements in current instruments and the advent of next-generation instruments will soon push observational 21 cm cosmology into a new era, with high significance measurements of both the power spectrum and the mean ("global") signal of the 21 cm ...
Liu, Adrian, Parsons, Aaron R.
core   +1 more source

What Can We Learn about Reionization Astrophysical Parameters Using Gaussian Process Regression?

The Astrophysical Journal
Reionization is one of the least understood processes in the evolution history of the Universe, mostly because of the numerous astrophysical processes occurring simultaneously about which we do not have a very clear idea so far.
Purba Mukherjee, Antara Dey, Supratik Pal   +2 more
doaj   +1 more source

The Impact of Temperature Fluctuations on the Lyman-alpha Forest Power Spectrum

, 2005
We explore the impact of spatial fluctuations in the intergalactic medium temperature on the Lyman-alpha forest flux power spectrum near z ~ 3. We develop a semianalytic model to examine temperature fluctuations resulting from inhomogeneous HI and ...
Adam Lidz, Boyle B. J., Hui L., Kamson Lai, Lacey C., Lars Hernquist, Matias Zaldarriaga, Miralda-Escude J., Muecket J. P., Peacock J. A., Theuns T., Zaldarriaga M.   +11 more
core   +1 more source

Probing the Cosmic Reionization History with JWST: Gunn–Peterson and Lyα Damping Wing Absorption at 4.5 < z < 13

The Astrophysical Journal
We present a statistical analysis of Ly α absorption using 581 galaxies at z = 4.5–13 observed with multiple JWST/NIRSpec spectroscopy programs, including JADES, UNCOVER, CEERS, and GO/DDT. We carefully construct composite spectra binned by redshift with
Hiroya Umeda, Masami Ouchi, Yuta Kageura, Yuichi Harikane, Minami Nakane, Tran Thi Thai, Kimihiko Nakajima   +6 more
doaj   +1 more source

Reionization scenarios and the temperature of the intergalactic medium [PDF]

, 2007
Eric Tittley, Avery Meiksin
openalex   +1 more source

SKA - EoR correlations and cross-correlations: kSZ, radio galaxies, and NIR background

, 2015
The Universe's Cosmic Dawn (CD) and Epoch of Reionization (EoR) can be studied using a number of observational probes that provide complementary or corroborating information.
Ciardi, Benedetta, Fernandez, Elizabeth, Jelic, Vibor, Tashiro, Hiroyuki, Vrbanec, Dijana   +4 more
core   +1 more source

Cross-correlating the Patchy Screening and Kinetic Sunyaev–Zel’dovich Effects as a New Probe of Reionization

The Astrophysical Journal
The kinetic Sunyaev–Zel’dovich effect (kSZ) and patchy screening effect are two complementary cosmic microwave background (CMB) probes of the reionization era.
Darby Kramer, Alexander van Engelen, Christopher Cain, Niall MacCrann, Hy Trac, Skylar Grayson, Evan Scannapieco, Blake Sherwin   +7 more
doaj   +1 more source

Cosmological perturbations and the reionization epoch [PDF]

, 2004
P. P. Avelino, Andrew R. Liddle
openalex   +1 more source

Precision era of the kinetic Sunyaev-Zeldovich effect: simulations, analytical models and observations and the power to constrain reionization

, 2003
The kinetic SZ effect, which is the dominant CMB source at arc-minute scales and $\nu \sim 217$ Ghz, probes the ionized gas peculiar momentum up to the epoch of reionization and is a sensitive measure of the reionization history.
H. Trac, Ma, P. Zhang, U.-L. Pen
core   +1 more source

The Kinetic Sunyaev-Zel'dovich Effect as a Probe of the Physics of Cosmic Reionization: The Effect of Self-regulated Reionization [PDF]

, 2014
Hyunbae Park
openalex   +1 more source