Results 51 to 60 of about 797,848 (382)

Galaxy subgroups in galaxy clusters [PDF]

Monthly Notices of the Royal Astronomical Society, 2011
Galaxies which fall into clusters as part of the same infall halo can retain correlations due to their shared origin. N-body simulations are used to study properties of such galaxy subgroups within clusters, including their richnesses and prevalence.
openaire   +4 more sources

Retracted: Can the chemical industry solve the climate change?On the role of human energy production, renewable energies, and the potential of chemistry as a solution provider

Chemie Ingenieur Technik, EarlyView., 2023
Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley   +1 more source

Quasar-galaxy and galaxy-galaxy cross-correlations: model predictions with realistic galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
11 pages, 4 figures, matches version in ...
Ravi K. Sheth, Ryan Scranton, Bhuvnesh Jain   +2 more
openaire   +3 more sources

The Galaxy Evolution Explorer: A Space Ultraviolet Survey Mission [PDF]

, 2004
We give an overview of the Galaxy Evolution Explorer (GALEX), a NASA Explorer Mission launched on 2003 April 28. GALEX is performing the first space UV sky survey, including imaging and grism surveys in two bands (1350-1750 and 1750-2750 Å).
D. C. Martin, J. Fanson, D. Schiminovich, P. Morrissey, P. Friedman, T. Barlow, T. Conrow, R. Grange, P. Jelinsky, B. Milliard, O. Siegmund, L. Bianchi, Y. Byun, J. Donas, K. Forster, T. Heckman, Young-Wook Lee, B. Madore, B. Madore, R. Malina, S. Neff, R. Rich, T. Small, F. Surber, A. Szalay, B. Welsh, T. Wyder   +26 more
semanticscholar   +1 more source

ASTROMETRY OF Χ AND H PERSEI BASED ON PROCESSING OF DIGITIZED PLATES OF ARCHIVE OF THE ASTRONOMICAL INSTITUTE OF THE ACADEMY OF SCIENCES OF THE REPUBLIC OF UZBEKISTAN

Odessa Astronomical Publications, 2014
Work is done  with Epson Expression 10000XL scanner  of  Astronomical Institute  (AI)  of theAcademyofSciencesofUzbekistan. The plates were exposed  with theNormalastrograph (D/F = 330mm / 3467mm, M = 59.56"/mm). The  digitization  of  plates with(16x16)
M. M. Muminov, Q. X. Yuldoshev, Sh. A. Ehgamberdiev, B. B. Kahharov, V. N. Andruk, Yu. I. Protsyuk   +5 more
doaj   +1 more source

On the Incompleteness of Birkhoff’s Theorem: A New Approach to the Central Symmetric Gravitational Field in Vacuum Space

Reports in Advances of Physical Sciences, 2023
Birkhoff’s theorem (1923) states that in the framework of General Relativity the only solution to the central symmetric gravitational field in vacuum is the Schwarzschild metric.
Michel Canac
doaj   +1 more source

Spectroscopic confirmation of a galaxy cluster associated with 7C1756+6520 at z=1.416 [PDF]

, 2010
We present spectroscopic follow-up of an overdensity of galaxies photometrically selected to be at 1 ...
A. Galametz, Best, C. De Breuck, D. Stern, Daddi, Doherty, Eckart, Eisenhardt, Eisenhardt, F. A. Harrison, Galametz, Galametz, Gawiser, Gladders, Hayashi, Hilton, J. Vernet, Kajisawa, Kodama, Kodama, Lacy, Lidman, Massey, Mullis, Oke, Overzier, Quadri, R. L. Griffith, Rosati, S. A. Stanford, Seymour, Stanford, Stanford, Stern, Stern, Stern, Venemans, Vikhlinin, Wilson   +38 more
core   +2 more sources

An algorithm for the direct reconstruction of the dark matter correlation function from weak lensing and galaxy clustering [PDF]

, 2010
The clustering of matter on cosmological scales is an essential probe for studying the physical origin and composition of our Universe. To date, most of the direct studies have focused on shear-shear weak lensing correlations, but it is also possible to ...
A. Refregier, A. J. S. Hamilton, J. Wambsganss, J. L. Tinker, N. Kaiser, P. Schneider, P. Schneider, Rachel Mandelbaum, Robert E. Smith, S. Hilbert, S. D. M. White, Tobias Baldauf, Uroš Seljak   +12 more
core   +1 more source

The Millennium Galaxy Catalogue: Galaxy Bimodality [PDF]

Proceedings of the International Astronomical Union, 2006
AbstractGalaxy bimodality is caused by the bulge-disc nature of galaxies as opposed to two distinct galaxy classes. This is evident in the colour-structure plane which clearly shows that elliptical galaxies (bulge-only) lie in the red compact peak and late-type spiral galaxies (disc-dominated) lie in the blue diffuse peak.
Jochen Liske, Simon P. Driver, Alister W. Graham   +2 more
openaire   +3 more sources

Accretion of galaxy groups into galaxy clusters [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We study the role of group infall in the assembly and dynamics of galaxy clusters in ΛCDM. We select 10 clusters with virial mass M200 ∼ 1014 $\rm M_\odot$ from the cosmological hydrodynamical simulation Illustris and follow their galaxies with stellar mass M⋆ ≥ 1.5 × 108 $\rm M_\odot$.
Laura V. Sales, M. G. Abadi, M. G. Abadi, José A. Benavides   +3 more
openaire   +4 more sources