Dust polarization at (sub)millimeter wavelengths has been observed for many protoplanetary disks. Theoretically, multiple origins potentially contribute to the polarized emission but it is still uncertain what mechanism dominant in disk millimeter polarization. To quantitatively address origin, we perform radiative transfer calculations of mixture alignment and self-scattering-induced reproduce...

A minor-closed class of graphs is a set of labelled graphs which is closed under isomorphism and under taking minors. For a minor-closed class G, we let gn be the number of graphs in G which have n vertices. A recent result of Norine et al. [12] shows that for all minor-closed class G, there is a constant c such that gn ≤ c nn!. Our main results show that the growth rate of gn is far from arbit...

We analyse VLT/MUSE observations of PGC 046832, the brightest cluster galaxy Abell 3556. The velocity structure this is startling and shows two reversals in sign along minor axis, one major axis. use triaxial Schwarzschild models to infer intrinsic shape, central black hole mass orbit distribution galaxy. shape determination suggests that highly centre (almost prolate) but has a low triaxiality...

This article proposes a novel algorithm employing space vector ellipse (SVE) in complex plane to classify and visualize power quality disturbance-events (PQDEs). In the proposed method, at first, time-domain signal reference signal, which are separated by 90°, mapped 2D coordinates. Thus, tip of resultant rotating traces an ellipse, from three parameters, namely, semi-major axis, semi-minor axi...

Minor mergers are common in galaxy clusters. They have the potential to create sloshing cold fronts (SCFs) intracluster medium (ICM) of cluster. However, resilience SCFs subsequent minor is unknown. Here we investigate extent which established by an off-axis merger disrupted a merger. We perform suite 13 hydrodynamic + N-body simulations idealised triple cluster vary approach direction and impa...

We present new optical imaging and spectroscopy of the peculiar, edge-on Sbc galaxy UGC 10043. Using the WIYN telescope, we have obtained B, R, and Hα+[N ii] images, together with DensePak integral field spectroscopic measurements of the stellar Ca ii infrared triplet and the Hα and [N ii] lines from the ionized gas. The imaging observations show that the inner bulge of UGC 10043 (a ≤7 .5) is e...

Two strong X-ray sources are paired about equally distant across the Seyfert galaxyNGC4235. It is shown here that they are a BL Lac object and a quasar. Comparison with other associations of X-ray AGN’s with Seyferts reveals systematic alignments within about 20 degrees of the minor axis of the active galaxy. Fainter BSO candidates measured here suggest secondary associations of quasars with in...

We report a large-scale synthesis of single-crystalline LiNbO3 nanowires with diameters of 300–400 nm, containing only minor amounts of impurities, using a modified molten salt procedure. The isolated product is composed of rhombohedral-phase LiNbO3 nanowires with the c-axis oriented along its length. Raman investigations further confirm the purity and ferroelectric order of the nanowires and a...

The problem of nding elliptical shapes in an image on a pyramid architecture using moment properties is considered. Based on the moment principle, the proposed method can be employed to determine the ve parameters of an elliptical shape in a given image, including the coordinates of the center of the ellipse, the length of minor and major axes, and the rotation angle of the major axis. A simula...

IN THE TITLE COMPOUND (SYSTEMATIC NAME N,N'-diphenyl-octanediamide), C(20)H(24)N(2)O(2), the two phenyl rings make an inter-planar angle of 76.5 (2)°. The crystal structure is stabilized by inter-molecular N-H⋯O hydrogen bonds, which link the mol-ecules into chains running along the b axis. The crystal studied was non-merohedrally twinned, the fractional contribution of the minor twin component...