نتایج جستجو برای: bar structure

تعداد نتایج: 1593256  

2003
Annapurni Subramaniam

The geometry of the LMC bar is studied using the dereddened mean magnitudes of the red clump stars ( ) I0 from the Optical Gravitational Lensing Experiment II catalog. The value of is found to vary in the east-west I0 direction such that both the east and the west end of the bar are closer to us with respect to the center of the bar. The maximum observed variation has a statistical significance...

Journal: :Science 2004
Brian J Peter Helen M Kent Ian G Mills Yvonne Vallis P Jonathan G Butler Philip R Evans Harvey T McMahon

The BAR (Bin/amphiphysin/Rvs) domain is the most conserved feature in amphiphysins from yeast to human and is also found in endophilins and nadrins. We solved the structure of the Drosophila amphiphysin BAR domain. It is a crescent-shaped dimer that binds preferentially to highly curved negatively charged membranes. With its N-terminal amphipathic helix and BAR domain (N-BAR), amphiphysin can d...

2016
Manuela Zoccali Elena Valenti

We review the observational evidences concerning the three-dimensional structure of the Galactic bulge. Although the inner few kpc of our Galaxy are normally referred to as the bulge, all the observations demonstrate that this region is dominated by a bar, i.e., the bulge is a bar. The bar has a boxy/peanut (X-shaped) structure in its outer regions, while it seems to become less and less elonga...

2002
F Combes D Barret S Leon

We present CO(1-0) and CO(2-1) maps of the Seyfert galaxy NGC 5728. Although a stellar nuclear bar structure is clearly identified in the near-infrared images in the central 10 " , inside the ring identified as the ILR of the primary bar, there is no nuclear bar structure in the molecular gas. Instead, the CO emission reveals an elongated structure, 15 " in length, beginning at the nucleus (def...

2007
András Kornai Geoffrey K. Pullum

X-bar theory is widely regarded as a substantive theory of phrase structure properties in natural languages. In this paper we will demonstrate that a formalization of its content reveals very little substance in its claims. We state and discuss six conditions that encapsulate the claims of X-bar theory: Lexicality — each nonterminal is a projection of a preterminal; Succession — each X dominate...

2000
C. M. Walmsley A. Natta E. Oliva L. Testi

We have obtained NIR spectral line maps of a limited region around the Orion Bar ionization front using the red and blue grisms of SOFI on the ESO NTT telescope. The wavelength range covered was from 0.95 to 2.3 µm. In addition to many well studied features, we detected two lines at 1.07 and 1.17 µm due to recombination to CI which have excitations above 60000 cm −1. We also observe several fea...

Journal: :Microbiology and molecular biology reviews : MMBR 2006
Gang Ren Parimala Vajjhala Janet S Lee Barbara Winsor Alan L Munn

The Bin1/amphiphysin/Rvs167 (BAR) domain proteins are a ubiquitous protein family. Genes encoding members of this family have not yet been found in the genomes of prokaryotes, but within eukaryotes, BAR domain proteins are found universally from unicellular eukaryotes such as yeast through to plants, insects, and vertebrates. BAR domain proteins share an N-terminal BAR domain with a high propen...

2001
C. Alard

A map of the projected density of the old stellar population of the Galactic Bulge region is reconstructed using 2MASS data. By making a combination of the H and K photometric bands , it is possible to overcome the effect of reddening, and thus penetrate the inner structure of the Galactic Bulge. The main structure in the map corresponds to the well documented peanut shaped bar which is formed ...

Journal: :The Astrophysical Journal 2005

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