Results 111 to 120 of about 1,962,001 (214)

X-ray emission in IllustrisTNG circum-cluster environments

Astronomy & Astrophysics
Context. An excess of soft X–ray emission (∼0.2 − 1 keV) above the contribution from the hot intracluster medium (ICM) has been detected in a number of galaxy clusters, including the Coma cluster. The physical origin of this emitting medium above the hot
Gouin Celine, Galárraga-Espinosa Daniela, Bonamente Massimiliano, Walker Stephen, Mirakhor Mohammad, Lieu Richard, Laigle Clotilde, Bonnassieux Etienne, Welker Charlotte, Gallo Stefano, Bonnaire Tony, Paste Jade   +11 more
doaj   +1 more source

Simulating the Effects of Intergalactic Gray Dust

, 2019
Using a high-resolution cosmological hydrodynamic simulation we present a method to constrain extinction due to intergalactic gray dust based on the observed magnitudes of distant Type Ia supernovae.
Croft, Rupert A. C., Davé, Romeel, Hernquist, Lars, Katz, Neal   +3 more
core   +1 more source

On the Physical Nature of Lyα Transmission Spikes in High-redshift Quasar Spectra

The Astrophysical Journal
We investigate Lyman-alpha (Ly α ) transmission spikes at 5.2 < z < 6.8 using synthetic quasar spectra from the “Cosmic Reionization on Computers” simulations.
Hanjue Zhu, Nickolay Y. Gnedin, Camille Avestruz   +2 more
doaj   +1 more source

Feeding the Dead: Neutral Gas Inflow in a Long-quenched Ancient Massive Galaxy at z ∼ 2.7 Observed with JWST/NIRSpec

The Astrophysical Journal
We report the spectroscopic detection of neutral gas inflow into a massive ( M _*  ≃ 4 × 10 ^10 M _⊙ ) quiescent galaxy observed at z _spec  = 2.6576 with the James Webb Space Telescope (JWST).
Davide Bevacqua, Danilo Marchesini, Paolo Saracco, Francesco La Barbera, Richard Pan, Sirio Belli, Gabriel Brammer, Guido De Marchi, Fabio R. Ditrani, Giovanna Giardino, Karl Glazebrook, Valentina La Torre, Jamie Lin, Adam Muzzin, Namrata Roy, Paola Santini, Benedetta Vulcani, Peter J. Watson, Xin Wang   +18 more
doaj   +1 more source

Webb telescope goes into space. [PDF]

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

Galaxy Proximate Damped Lyα Systems and H I Reionization Topology in Technicolor Dawn

The Astrophysical Journal
Recent observations from the James Webb Space Telescope have revealed proximate damped Ly α absorbers (PDLAs) in the foreground of high-redshift galaxies ( z  > 5), which have been interpreted as neutral circumgalactic media (CGM).
Maya Steen, Kristian Finlator, Samir Kušmić, Ezra Huscher   +3 more
doaj   +1 more source

La industria del gas en Galicia: del alumbrado por gas al siglo XXI, 1850-2005

, 2009
[Resumen] Galicia, y las ciudades de A Coruña, Santiago, Ferrol y Vigo son los protagonistas de esta historia de la introducción del alumbrado por gas en las calles y las casas, y del cambio sociológico que introdujo en la sociedad gallega, permitiendo ...
Martínez-López, Alberte, Mirás-Araujo, Jesús, Lindoso-Tato, Elvira   +2 more
core  

Considering light-matter interactions in the Friedmann equations. [PDF]

Proc Math Phys Eng Sci, 2022
Vavryčuk V.
europepmc   +1 more source

Circular advertisement for the Natural Gas Pavilion at the Seattle World's Fair, 1962

, 1962
Consists of an outer wheel listing the name and respective birth dates for each sign of the zodiac overlaid with an inner, windowed wheel that, when rotated to align with a specific sign, reveals a brief character analysis; recommendations for specific ...
American Gas Association
core  

On galactic rotation and the intergalactic medium

, 1975
The observed spectrum of the isotropic diffuse X-ray background has often been invoked to infer the possible existence of a hot intergalactic medium at a density of the order of that required for closure of the Universe.
Cowsik, R., Lerche, I.
core   +1 more source