Results 91 to 100 of about 830 (187)

POLAR

Astronomy & Astrophysics
Context. Galaxies may suffer some starburst and quenched periods in their history due to galaxy mergers and feedback. However, semi-numerical simulations of the Epoch of Reionization (EoR) do not accurately model the effects of the star formation history
Ma Qing-Bo, Ghara Raghunath, Ciardi Benedetta, Acharya Anshuman, Yue Bin, Iliev Ilian T., Koopmans Léon V. E., Mellema Garrelt, Zaroubi Saleem   +8 more
doaj   +1 more source

A Portrait of the Cosmic Reionization History in the Context of the Early Dark Energy Model

The Astrophysical Journal
Recent JWST observations of Ly α emission at z  ∼ 11–6 indicate a rapid reionization of the intergalactic medium within the first ∼700 Myr. The required Lyman continuum (LyC) photon budget may naturally arise from the unexpectedly high galaxy number ...
Weiyang Liu, Xin Wang, Hu Zhan, Karl Glazebrook, Mengtao Tang, Michele Trenti   +5 more
doaj   +1 more source

Sensitivity of the redshifted 21 cm signal from the Dark Ages to parameters of primordial magnetic fields

Astronomy & Astrophysics
We analyse the impact of the decaying magnetic turbulence of primordial magnetic fields (PMFs) and ambipolar diffusion on the ionisation and thermal history of the Dark Ages Universe (30 ≤ z ≤ 300), and its imprint on the spectral profile of the global ...
Novosyadlyj B., Kulinich Yu., Fortuna N., Rudakovskyi A.   +3 more
doaj   +1 more source

Generative models of 21 cm Epoch of Reionisation lightcones with 3D scattering transforms

Astronomy & Astrophysics
The 21 cm signal from the Epoch of Reionisation (EoR) is observed as a 3D dataset known as a lightcone, consisting of two spatial sky plane axes and a redshift (frequency) axis.
Hothi Ian, Allys Erwan, Semelin Benoit, Meriot Romain   +3 more
doaj   +1 more source

A GLIMPSE into the very faint end of the Hβ+[O III]λλ4960,5008 luminosity function at z ∼ 7 – 9 behind Abell S1063

Astronomy & Astrophysics
We used the ultra-deep GLIMPSE JWST/NIRCam survey to constrain the faint end of the [O III]+Hβ luminosity function (LF) down to 1039erg s−1 at z ∼ 7 − 9 behind the lensed Hubble Frontier Field galaxy cluster Abell S1063.
Korber Damien, Chemerynska Iryna, Furtak Lukas J., Atek Hakim, Endsley Ryan, Schaerer Daniel, Chisholm John, Kokorev Vasily, Saldana-Lopez Alberto, Adamo Angela, Muñoz Julian B., Oesch Pascal A., Meyer Romain, Marques-Chaves Rui, Fujimoto Seiji   +14 more
doaj   +1 more source

The SPHINX public data release

Astronomy & Astrophysics
Context. Low-ionisation state (LIS) metal absorption lines, such as Si II λ1526, are widely used to trace the properties and dynamics of the interstellar medium (ISM) in galaxies.
Mauerhofer Valentin, Blaizot Jérémy, Garel Thibault, Verhamme Anne, Gazagnes Simon, Kerutt Josephine, Michel-Dansac Leo, Parker Kaelee S., Rosdahl Joakim, Saldana-Lopez Alberto, Trebitsch Maxime, Kimm Taysun, Ocvirk Pierre, Teyssier Romain   +13 more
doaj   +1 more source

Perspectives on fundamental cosmology from Low Earth Orbit and the Moon. [PDF]

NPJ Microgravity, 2023
Bertone G, Buchmueller OL, Cole PS.
europepmc   +1 more source

Extremely ultraviolet-bright starbursts at the end of cosmic reionization

Astronomy & Astrophysics
We present a study of 27 very UV-bright (−22.0 ≲ MUV ≲ −24.4) star-forming galaxies at z ∼ 6 identified in the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) survey.
Marques-Chaves R., Schaerer D., Dessauges-Zavadsky M., Álvarez-Márquez J., Hashimoto T., Colina L., Inoue A. K., Blanco-Prieto C., Nakazato Y., Costantin L., Arribas S., Bakx T. J. L. C., Ceverino D., Crespo Gómez A., Fudamoto Y., Hagimoto M., Hamada A., Matsuoka Y., Mawatari K., Onoue M., Osone W., Ren Y. W., Sugahara Y., Terui Y., Yoshida N.   +24 more
doaj   +1 more source

The Era of Reionization

, 2002
10 pages, LaTeX, to appear in the proceedings of "Galaxy Evolution: Theory and Observations", Cozumel, Mexico, April 2002. Eds. V. Avila-Reese, C. Firmani, C. Frenk, & C. Allen, RevMexAA SC (2002)
openaire   +2 more sources

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