In an Omega 0 = 1 universe, within the classical Eulerian theory of gravitational instability, the redshift evolution of a peculiar velocity field in a region...
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PublicaciónThird-Order Perturbative Approach to Gravitational Instability: Evolution of Isolated Structures and Environmental Effects
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PublicaciónThree Lyman-α-emitting filaments converging to a massive galaxy group at z = 2.91: discussing the case for cold gas infall
We have discovered a 300 kpc-wide giant Lyman-α (Lyα) nebula centered on the massive galaxy group RO-1001 at z = 2.91 in the Cosmic Evolution Survey field. Keck...
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PublicaciónThree supernova shells around a young M33 star cluster
Using a specialized technique sensitive to the presence of expanding ionized gas, we have detected a set of three concentric expanding shells in an H II region...
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PublicaciónThree-dimensional decomposition of galaxies with bulge and long bar
Context. Some observations indicate that the Milky Way has two inner components, a bulge and a long bar, which present a misalignment of Δα ≃ 20° that is...
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PublicaciónThree-dimensional Spectroscopy of Blue Compact Galaxies: Diagnostic Diagrams
Here we present the analysis of three-dimensional spectroscopic data of three blue compact galaxies (Mrk 324, Mrk 370, and III Zw 102). Each of the more than 22...
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PublicaciónThrough Thick and Thin—H I Absorption in Cosmological Simulations
We investigate the column density distribution function of neutral hydrogen at redshift z = 3 using a cosmological simulation of galaxy formation from the...
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PublicaciónTidal Streams in the Galactic Halo: Evidence for the Sagittarius Northern Stream or Traces of a New Nearby Dwarf Galaxy
Standard cosmology predicts that dwarfs were the first galaxies to be formed in the universe and that many of them merge afterward to form bigger galaxies such...
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PublicaciónTidally induced velocity gradients in the Milky Way dwarf spheroidal satellites
We present a kinematic study of six dwarf spheroidal galaxies (dSph) satellites of the Milky Way (MW), namely Carina, Draco, Fornax, Sculptor, Sextans, and Ursa...
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PublicaciónTime Delay in QSO 0957+561 From 1984-1999 Optical Data
Photometric optical data of QSO 0957+561 covering the period 1984-1999 are analyzed to discern between the two values of the time delay (417 and 424 days)...