نتایج جستجو برای: ellipticity
تعداد نتایج: 1777 فیلتر نتایج به سال:
We have compiled a sample of early-type cluster galaxies from 0 < z < 1.3 and measured the evolution of their ellipticity distributions. Our sample contains 487 galaxies in 17 z > 0.3 clusters with high quality space-based imaging and a comparable sample of 210 galaxies in 10 clusters at z < 0.05. We select early-type galaxies (elliptical and S0 galaxies) that fall within the cluster R200, and ...
Electron excitation in dielectrics is studied for an elliptically polarized laser field. As the first step, we develop analytical formula electron rate under as extension of our previous work [Otobe et al., J. Phys. Soc. Jpn. 88, 024709 (2019)]. In next calculate depending on band structure by assuming direction dependence reduced mass. We find that although ellipticity decreases significantly ...
We have measured the distribution of intrinsic ellipticities for a sample of 28 relatively face–on spiral disks. We combine Hα velocity fields and R and I-band images to determine differences between kinematic and photometric inclination and position angles, from which we estimate intrinsic ellipticities of galaxy disks. Our findings suggest disks have a lognormal distribution of ellipticities ...
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