Results 131 to 140 of about 8,595 (212)

Not all protoclusters host evolved galaxies: Evidence for reduced environmental effects in a lower halo mass protocluster at z = 7.66

Astronomy & Astrophysics
The progenitors of present-day galaxy clusters offer crucial insight into how galaxies and large-scale structure co-evolve in the early Universe. We present JWST/NIRCam grism spectroscopy of the photometrically identified z = 7.66 protocluster core in ...
Witten Callum, Oesch Pascal A., Bennett Jake S., Meyer Romain A., Giovinazzo Emma, Covelo-Paz Alba, Baker William M., Ivey Lucy R.   +7 more
doaj   +1 more source

Mass spectrometric detection of fleeting neutral intermediates generated in electrochemical reactions. [PDF]

Chem Sci, 2021
Liu J, Yu K, Zhang H, He J, Jiang J, Luo H.   +5 more
europepmc   +1 more source

Cosmic microwave background polarization and reionization: Constraining models with a double reionization

, 2005
Neutral hydrogen around high–z QSO and an optical depth $\tau \sim 0.17$ can be reconciled if reionization is more complex than a single transition at $z\simeq 6{-}8$. Tracing its details could shed a new light on the first sources of radiation.
L. Casarini, S. A. Bonometto, E. Carretti, R. Fabbri, L. P. L. Colombo, G. Bernardi, R. Mainini, Fabbri, Roberto   +7 more
core   +1 more source

Reionisation time field reconstruction from 21-cm maps: Investigating predictor coherence in warm dark matter cosmology

Astronomy & Astrophysics
Context. The reionisation time field treion(r) captures the entire history of cosmic reionisation by mapping the moment where each region of the Universe became ionised.
Hiegel Julien, Aubert Dominique, Thélie Émilie, Ibata Rodrigo, Mai Nicolas   +4 more
doaj   +1 more source

Reionization and the cosmic microwave background

, 2008
6 pages, plain Tex, figures can be requested from frost@bkyast.berkeley.edu, CfPA-94-th ...
openaire   +2 more sources

Sensitivity of the Hongmeng 21 cm experiment to scattering dark matter

Astronomy & Astrophysics
Scattering between dark matter and baryons can cool the intergalactic medium temperature and deepen the 21 cm signal. Such interactions have been proposed to explain the unusually deep 21 cm absorption signal reported by EDGES in 2018.
Cang Junsong, Gao Yu, Ma Yin-Zhe
doaj   +1 more source

Nearby primitive galaxies offer a window into the early universe. [PDF]

Proc Natl Acad Sci U S A, 2022
Croswell K.
europepmc   +1 more source

Testing general relativity with cosmological large scale structure. [PDF]

Gen Relativ Gravit, 2022
Durrer R.
europepmc   +1 more source

Beyond Optical Depth: Future Determination of Ionization History from the Cosmic Microwave Background. [PDF]

Astrophys J, 2020
Watts DJ, Addison GE, Bennett CL, Weiland JL.   +3 more
europepmc   +1 more source

The emergence of globular clusters and globular-cluster-like dwarfs. [PDF]

Nature
Taylor ED, Read JI, Orkney MDA, Kim SY, Pontzen A, Agertz O, Rey MP, Andersson EP, Collins MLM, Yates RM.   +9 more
europepmc   +1 more source