Results 121 to 130 of about 1,993,973 (222)

Quasar Radiative Feedback May Suppress Galaxy Growth on Intergalactic Scales at z = 6.3

The Astrophysical Journal Letters
We present observational evidence that intense ionizing radiation from a luminous quasar suppresses nebular emission in nearby galaxies on intergalactic scales at z = 6.3.
Yongda Zhu, Eiichi Egami, Xiaohui Fan, Fengwu Sun, George D. Becker, Christopher Cain, Huanqing Chen, Anna-Christina Eilers, Yoshinobu Fudamoto, Jakob M. Helton, Xiangyu Jin, Maria Pudoka, Andrew J. Bunker, Zheng Cai, Jaclyn B. Champagne, Zhiyuan Ji, Xiaojing Lin, Weizhe Liu, Hai-Xia Ma, Zheng Ma, Roberto Maiolino, George H. Rieke, Marcia J. Rieke, Pierluigi Rinaldi, Yang Sun, Wei Leong Tee, Feige Wang, Jinyi Yang, Minghao Yue, Junyu Zhang   +29 more
doaj   +1 more source

Neutrino and EM asterometric detection of habitable exoplanets. [PDF]

Bioinformation, 2023
Shapshak P.
europepmc   +1 more source

Measuring the temperature of the intergalactic medium

, 1999
Numerical simulations indicate that the smooth, photoionized intergalactic medium (IGM) responsible for the low column density Lyman-alpha forest follows a well defined temperature-density relation.
Theuns, T., Schaye, J., Leonard, A., Efstathiou, G.   +3 more
core   +1 more source

The Quasar Proximity Effect as an Alternative Probe of Quasar Pair Distances

The Astrophysical Journal Letters
Recently discovered quasar pairs at high redshifts ( z  ≳ 5) are likely precursors to supermassive black hole mergers, providing a promising window to high-redshift quasar growth mechanisms.
Huanqing Chen, Camille Avestruz, Jakob Wiest   +2 more
doaj   +1 more source

Probing the He ii Reionization ERA via Absorbing C iv Historical Yield (HIERACHY). III. The C iv Absorber Catalog and Initial Results on Cosmic Abundance Evolution at z ≈ 3–5

The Astrophysical Journal
As part of the HIERACHY program, we collect the high signal-to-noise ratio and high-spectral resolution optical spectra of 25 quasars at z  ≈ 4–5 to constrain the C iv evolution at z  ≈ 3–5.
Xiaodi Yu, Zhijie Qu, Zheng Cai, Jiang-Tao Li, Huiyang Mao, Xin Wang   +5 more
doaj   +1 more source

Cosmic-void observations reconciled with primordial magnetogenesis. [PDF]

Nat Commun, 2023
Hosking DN, Schekochihin AA.
europepmc   +1 more source

Constrain intergalactic medium from the SZ effect map

, 2006
In this paper, we try to detect the SZ effect in the 2MASS DWT clusters and less bound objects in order to constrain the warm-hot intergalactic medium distribution on large scales by cross-correlation analysis.
Cao, L (Cao, Liang), Zuo, W (Zuo, Wei)
core  

Statistical Properties of Cold Streams in Massive Star-forming Halos in TNG50

The Astrophysical Journal
Cold, dense streams of gas are predicted to penetrate deeply into massive (≳10 ^12 M _⊙ ) halos at cosmic noon ( z  ∼ 4–2), fueling galaxies to sustain high star formation rates.
Isabel Medlock, Daisuke Nagai, Nir Mandelker, Volker Springel, Frank C. van den Bosch, Elad Zinger, Barry T. Chiang   +6 more
doaj   +1 more source

Webb telescope goes into space. [PDF]

Innovation (Camb), 2022
Xin L.
europepmc   +1 more source

China's 'sky eye': exploring the universe by measuring faint cosmic radio signals. [PDF]

Natl Sci Rev, 2023
Zhao W.
europepmc   +1 more source