Whether a dwarf spheroidal galaxy is in equilibrium or being tidally disrupted by the Milky Way is an important question for the study of its dark matter content and distribution. This question is investigated using 328 recent observations from the dwarf spheroidal Leo I. For Leo I, tidal disruption is detected, at least for stars sufficiently far from the center, but the effect appears to be q...

Experimental setups using two-arm and o 60 four-arm prolate-spheroidal IRAs are used to obtain better focusing for a prolate-spheroidal IRA and these results are compared with analytical results in [1] for comparison. This paper presents a summary of the experimental setup and the dimensions of these experiments are based on [1, 2]. These setups were motivated by a biological application [3]. T...

Alternative expressions for calculating the prolate spheroidal radial functions of the first kind R^] (c, £) and their first derivatives with respect to £ are shown to provide accurate values, even for low values of I — m where the traditional expressions provide increasingly inaccurate results as the size parameter c increases to large values. These expressions also converge in fewer terms tha...

Reported here are both STM images and spatially resolved tunneling spectra of four different polyoxometalate (POM) structural class members: Keggin structure, H(3)[PW(12)O(40)] (spherical); Finke-Droege (FD) structure, Na(16)[Cu(4)(H(2)O)(2)(P(2)W(15)O(56))(2)] (prolate spheroidal); Wells-Dawson (WD) structure, H(7)[P(2)Mo(17)VO(62)] (prolate spheroidal); and Pope-Jeannin-Preyssler (PJP) struct...

Spheroidal and fritted particles of three size classes from closein fallout samples collected from Small Boy were separated by hand. Analysis of spheroidal and fritted groups fror the > lU00-u and the 35O-7OO-U size classes showed that spheroidal particles had higher specific activities than the fritted particles; however this difference was less pronounced for the smaller size groups. Contrary...

We have investigated the F0V star V398Aurigae (= 9 Aur) under the assumption that it is undergoing non-radial gravity mode oscillations and that the two principal periods given by Krisciunas et al. (1995) are correct. We find that the two periods are manifestations of an l = 3, |m| = 1 spheroidal mode and its toroidal corrections due to the rotation of the star. As far as we know, this is the f...

From the photometric results presented in this communication it appears that contrary to some earlier indications the open spirals, with their supergiant stars and superficial structure of spiral arms, are not appreciably larger than spheroidal galaxies, which seem to be devoid of highly luminous stars and free of distributional irregularities. It follows that if in the course of time spiral ar...

Galaxies exhibit a sequence of various morphological types, i.e., the Hubble sequence, and they are basically composed of spheroidal components (elliptical galaxies and bulges in spiral galaxies) and disks. It is known that spheroidal components are found only in relatively massive galaxies with M = 10M⊙, and all stellar populations in them are very old, but there is no clear explanation for th...

The Lidar/Radiometer Inversion Code (LIRIC) combines the multiwavelength lidar technique with sun/sky photometry and allows us to retrieve vertical profiles of particle optical and microphysical properties separately for finemode and coarse-mode particles. After a brief presentation of the theoretical background, we evaluate the potential of LIRIC to retrieve the optical and microphysical prope...