Galactic spheroids can form as a result of galaxy interactions and mergers of disks. Detailed analyses of the photometric properties, the intrinsic orbital structure, the line-of-sight velocity distributions and the kinemetry of simulated merger remnants, which depend critically on the geometry and the gas content of the interacting progenitors, indicate that low and intermediate mass rotating ...

In this paper we introduce a wideband three-element diversity antenna for compact wireless communication systems operating at the 4-6 GHz band. A series of experiments to characterize the diversity performance of the antenna for non-line-of-sight (NLOS) indoor multipath environments have been conducted. From these experiments, we calculate envelope correlation, power imbalance, and diversity ga...

In this paper, the average level crossing rate of the ratio of product of two k-μ random variables and k-μ random variable will be analyzed. The joint probability density function of the ratio of product of two k-μ random variables and k-μ random variable and its first derivative will be calculated. By using this expression, the average level crossing rate of the ratio of product of two k-μ ran...

We demonstrate that pulsar timing measurements may be able to detect the presence of dark matter substructure within our own galaxy. As dark matter substructure transits near the line-of-sight between a pulsar and an observer, the change in the gravitational field will result in a delay of the light-travel-time of photons. We calculate the effect of this delay due to transiting dark matter subs...

This paper presents an experimental validation of a method of determining the relative attitude matrix between two quadrotors using line-of-sight vectors between each other as well as a common reference location. The result of the line-of-sight vector method is compared to the relative attitude matrix obtained from a motion capture system which is taken as the ground truth. The difference betwe...

This paper presents a uniform semiglobal exponential stability (USGES) proof for a class of proportional line-of-sight (LOS) guidance laws used for vehicle path-following control. The LOS guidance law under consideration is a lookahead-based guidance law for marine craft. The USGES proof extends previous results that only guarantee global κ-exponential stability. Typical applications are marine...

We consider the problem of reconstructing the 3D coordinates of a moving point seen from a monocular moving camera, i.e., to reconstruct moving objects from line-of-sight measurements only. The task is feasible only when some constraints are placed on the shape of the trajectory of the moving point. We coin the family of such tasks as \trajectory triangulation". In this paper we focus on trajec...

We report the detection, with the Caltech Submillimeter Observatory, of the 894-GHz HDO(11,1−00,0) transition, observed in absorption against the background continuum emission of the SgrB2 cores M and N. Radiative transfer modeling of this feature, together with the published data set of mm and submm HDO and H 2 O transitions, suggests that ground-state absorption features from deuterated and n...

We searched for evidence of soft X-ray absorption by hot gas in the vicinity of the Galaxy in a small sample of fifteen type I AGN observed with the high resolution X-ray gratings on board Chandra. We find that around half of the sight lines in our sample exhibit absorption due to local Hor He-like Oxygen (or both) at confidence levels ranging from> 90% to > 3σ. Depending on the sight line, the...