Results 111 to 120 of about 1,993,973 (222)

ELT requirements for future observation of the intergalactic medium

, 2005
We summarise the science cases for an ELT that were presented in the parallel session on the intergalactic medium, and the open discussion that followed the formal presentations.
Theuns, Tom, Srianand, R., Srianand, Raghunathan, Theuns, T.   +3 more
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MUSEQuBES: Physical Conditions, Origins, and Multielement Abundances of the Circumgalactic Medium of an Isolated, Star-forming Dwarf Galaxy at z = 0.57

The Astrophysical Journal Letters
In dwarf galaxy models, outflows expel metal-enriched interstellar medium (ISM) into the circumgalactic medium (CGM) to reproduce their observed low metallicities, but measurements of dwarf CGM properties are scarce.
Sean D. Johnson, Nishant Mishra, Sowgat Muzahid, Gwen C. Rudie, Fakhri S. Zahedy, Zhijie Qu, Claude-André Faucher-Giguère, Jonathan Stern, Jennifer I-Hsiu Li, Elise Fuller, Sebastiano Cantalupo, Hsiao-Wen Chen, Ahmad Kadri, Suyash Kumar, Zhuoqi (Will) Liu, Gregory Walth   +15 more
doaj   +1 more source

Observations of intergalactic HI in groups of southern galaxies

, 2022
We started a program for searching HI in the intergalactic medium and in the direction to two groups of galaxies: NGC 5128 and NGC 6300. The minimum detectable mass in each group will be 5.8 x 10⁷ and 5.2x10⁸ solar masses respectively.Asociación ...
Martin, M.C.
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Continuous solutions of cosmic-rays and waves in astrophysical environments. [PDF]

Sci Rep, 2023
Irshad K, Ramzan B, Qazi SNA, Areeb F, Rasheed A, Jamil M.   +5 more
europepmc   +1 more source

Galaxy Underdensities Host the Clearest Intergalactic Medium Lyα Transmission and Indicate Anisotropic Reionization

The Astrophysical Journal
How galaxies drive reionization and what governs its geometry remain fundamental questions. We present JWST/NIRCam wide-field slitless spectroscopy (WFSS) observations toward two of the most Ly α -transmissive QSO sight lines near the end of reionization.
Yongda Zhu, George D. Becker, Anson D’Aloisio, Ryan Endsley, Nakul Gangolli, Christopher Cain, Charlotte A. Mason, Seyedazim Hashemi, Hui Hong   +8 more
doaj   +1 more source

Neutrino communication, intergalactic transit, and Astrobiology. [PDF]

Bioinformation, 2022
Shapshak P.
europepmc   +1 more source

When Does the Intergalactic Medium Become Enriched?

, 2007
We use cosmological hydrodynamic simulations including galactic feedback based on observations of local starbursts to find a self-consistent evolutionary model capable of fitting the observations of the intergalactic metallicity history as traced by C ...
K. Finlator, R. Davé, B.D. Oppenheimer
core   +1 more source

The 2023 Flight of the Faint Intergalactic-medium Redshifted Emission Balloon

The Astrophysical Journal Supplement Series
The second iteration of the Faint Intergalactic-medium Redshifted Emission Balloon (FIREBall-2) is a UV multiobject spectrograph designed to detect emission from the circumgalactic and circumquasar medium at low redshifts ( z < 1).
Drew M. Miles, Vincent Picouet, Zeren Lin, Ignacio Cevallos-Aleman, David Schiminovich, Nicolas Bray, Charles-Antoine Chevrier, Greyson Davis, Erika Hamden, Keri Hoadley, D. Christopher Martin, Bruno Milliard, Johan Montel, David Valls-Gabaud, Simran Agarwal, Philippe Balard, Patrick Blanchard, Harrison Bradley, Haeun Chung, Marty Crabill, Fernando Cruz Aguirre, Xihan Deng, Fabien Harmand, Catherine Hourtolle, Olivia Jones, Nazende I. Kerkeser, Aafaque R. Khan, Gillian Kyne, Jessica S. Li, Nicole Melso, Shouleh Nikzad, Julie Richard, Meghna Sitaram, Jared Termini, Jean-Noel Valdivia, Didier Vibert, Matthew Werneken   +36 more
doaj   +1 more source

Cosmic Reionization on Computers: Statistics, Physical Properties, and Environments of Lyman Limit Systems at z ∼ 6

The Astrophysical Journal
Lyman limit systems (LLSs) are dense hydrogen clouds with high enough H i column densities to absorb Lyman continuum photons emitted from distant quasars.
Jiawen Fan, Hanjue Zhu, Camille Avestruz, Nickolay Y. Gnedin   +3 more
doaj   +1 more source

X-ray absorption by the intergalactic medium

, 2001
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2001.Includes bibliographical references (p. 145-155).I have studied the intergalactic medium (IGM) located in galaxy clusters and groups via the so-called "X-ray Forest" the X-ray
Fang, Taotao, 1970-
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