544 citations
- European Southern ObservatoryCL53 papers
- Pontificia Universidad Católica de ChileCL33 papers
- Yale UniversityUS24 papers
- Centre National de la Recherche ScientifiqueFR22 papers
- Osservatorio Astronomico di PadovaIT18 papers
- Center for Astrophysics Harvard & SmithsonianUS13 papers
- Instituto de Astrofísica de CanariasES13 papers
- University of California, BerkeleyUS13 papers
- University of PaduaIT13 papers
- National Institute for AstrophysicsIT12 papers
- Australian National UniversityAU11 papers
- Carnegie ObservatoriesUS11 papers
4 papers · 1 filter
Clues to the origin of metals in the Ly-alpha forest
S. Lopez, S. D'odorico, S. L. Ellison +1
We analyze the z=2 Ly-alpha and CIV forest along two adjacent lines-of-sight at high S/N and spectral resolution to assess the question of the origin of metals in the intergalactic…
Expected length of the longest common subsequence for large alphabets
Marcos Kiwi, Martin Loebl, Jiri Matousek
We consider the length L of the longest common subsequence of two randomly uniformly and independently chosen n character words over a k-ary alphabet. Subadditivity arguments yield…
Universality and Decidability of Number-Conserving Cellular Automata
Andres Moreira
Number-conserving cellular automata (NCCA) are particularly interesting, both because of their natural appearance as models of real systems, and because of the strong restrictions…
Disentangling microlensing and differential extinction in the double QSO HE0512-3329
O. Wucknitz, L. Wisotzki, S. Lopez +1
We present the first separate spectra of both components of the small-separation double QSO HE0512-3329 obtained with HST/STIS in the optical and near UV. The similarities especial…