Results 81 to 90 of about 738 (163)

Radio galaxies near the epoch of reionisation

, 2019
This thesis explores the theoretical and observational properties of distant massive galaxies that harbour active black holes in their centres and shine brightly at radio wavelengths.
Saxena, A.
core  

Correlation functions for pairs and groups of galaxies

, 1990
There are many studies on the correlation functions of galaxies, of clusters of galaxies, even of superclusters (e.g., Groth and Peebles 1977; Davies and Peebles 1983; Kalinkov and Kuneva 1985, 1986; Bahcall 1988 and references therein) but not so many ...
Kalinkov, M., Kuneva, I.
core  

The line-of-sight towards GRB 030429 at z=2.66:probing the matter at stellar, galactic and intergalactic scales

, 2004
Gamma rays: bursts-galaxies: distances and redshifts- galaxies: high-redshift-ISM: dust, extinction-quasars: absorption ...
Jensen, B.L., Jakobsson...[et al.], P., Hjorth, J., Gudmundsson, E.H., Pedersen, K., Møller, P., Kilmartin, P., Fynbo, J.P.U.   +7 more
core   +1 more source

Angular correlation of 3.6 and 24 micron galaxies in the SWIRE N1 field.

, 2006
We report the first calculation of the angular cross correlation function of 3.6 and 24µm galaxies detected in the SWIRE survey. We have selected a volume limited sample of luminous galaxies based on photometric redshifts.
C Lonsdale (7781126), F Masci (9209504), D Shupe (16057751), E. A. González-Solares (16107443), Seb Oliver (4460809), M Vaccari (7745561), M Rowan-Robinson (7755881), I Waddington (9655664), F Fang (542891), J Surace (9209507)   +9 more
core  

Fast transients at cosmological distances with the SKA

, 2014
Impulsive radio bursts that are detectable across cosmological distances constitute extremely powerful probes of the ionized Inter-Galactic Medium (IGM), intergalactic magnetic fields, and the properties of space-time itself.
Ramesh Bhat (2399017), Jean Pierre Macquart (19001189), R. Fender (7775303), B. Stappers (7680047), Cathryn M. Trott (19012871), R. P. Breton (19003367), Eran O. Ofek (19004729), Duncan R. Lorimer (19011512), Keith Grainge (17500467), L. G. Spitler (19012778), Matthew McQuinn (19012874), Adam Deller (18926590), Jason W T Hessels (19011677), C. Law (19012868), Evan Keane (18944107), M. Pietka (19010792), S. Chatterjee (2314663)   +16 more
core   +1 more source

New search strategy for high z intervening absorbers:GRB021004, a pilot study

, 2003
gamma rays: bursts;galaxies: distances and redshifts; quasars: absorption ...
P. M. Vreeswijk, Fynbo, Johan Peter Uldall, J. P. U. Fynbo, P. Møller, Vreeswijk, P., Moller, p   +5 more
core   +1 more source

Selecting ultra-faint dwarf candidate progenitors in cosmological N-body simulations at high redshifts

, 2018
The smallest satellites of the Milky Way ceased forming stars during the epoch of reionization and thus provide archaeological access to galaxy formation at z > 6. Numerical studies of these ultrafaint dwarf galaxies (UFDs) require expensive cosmological
Gregory A Dooley, Frebel, Anna L., Scannapieco, Evan, Evan Scannapieco, Safarzadeh, Mohammadtaher, Dooley, Gregory Alan, O'Shea, Brian W, Gómez, Facundo A, Facundo A Gómez, Ji, Alexander P, Anna Frebel, Mohammadtaher Safarzadeh, Brian W O'Shea, Alexander P Ji   +13 more
core   +1 more source

A Photometrically Detected Forming Cluster of Galaxies at Redshift 1.6 in the GOODS Field

, 2007
We report the discovery of a localized overdensity at z ~ 1.6 in the GOODS-South field, presumably a poor cluster in the process of formation. The three-dimensional galaxy density has been estimated on the basis of well-calibrated photometric redshifts ...
FIORE F, SALIMBENI S, NONINO M, SANTINI P, GRAZIAN A, TREVESE, Dario, GIALLONGO E, CASTELLANO, MARCO, PENTERICCI L, CRISTIANI S, FONTANA A, VANZELLA E.   +11 more
core   +1 more source

Directly Imaging Damped Ly-Alpha Galaxies at Redshifts Greater Than 2. III: The Star Formation Rates of Neutral Gas Reservoirs at Redshifts of Approximately 2.7

, 2014
We present results from a survey designed to probe the star formation properties of 32 damped Ly alpha systems (DLAs) at redshifts of approximately 2.7.
Fumagalli, Michele, Rafelski, Marc, Kanekar, Nissim, OMeara, John M., Prochaska, J. Xavier   +4 more
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Comparing the motion of dark matter and standard model particles on cosmological scales. [PDF]

Nat Commun
Grimm N, Bonvin C, Tutusaus I.
europepmc   +1 more source