Recent studies on the effect of local mate competition (LMC) on sex ratios have focused on the effect of post-dispersal mating success by males. A higher proportion of males is expected to be produced as the potential for outbreeding increases. Here we demonstrate that males of a haplodiploid ambrosia beetle with LMC disperse to seek additional matings, and brood sex ratios increase with outbre...

The rotation of the disk of the LMC is derived from the radial velocities of 975 carbon stars. The radial component of the disk’s velocity ellipsoid is σR = 28 ± 14 km s . The disk rotates with a true maximum circular velocity of 79 km s after correcting for asymmetric drift. For a typical submaximal disk, the LMC’s dark halo has a mass of 1× 10M⊙ inside of 10 kpc. If the LMC microlensing lens ...

We present V and Ic CCD photometry for 40 LMC Cepheids at 1 to 3 epochs. This represents a significant increase in the number of LMC Cepheids with I-band data, and, as we show, is a useful addition to the sample which can be used to calibrate the period–luminosity relations in these important bands.

Several studies from our laboratory show that axial stretch of the lower esophageal sphincter (LES) in an oral direction causes neurally mediated LES relaxation. Under physiological conditions, axial stretch of the LES is caused by longitudinal muscle contraction (LMC) of the esophagus. Because longitudinal muscle is composed of skeletal muscle in mice, vagal-induced LMC and LES relaxation are ...

We present a detailed map of the reddening in a 1.9◦ × 1.5◦ section of the Large Magellanic Cloud (LMC), constructed from UBV I photometry of 2069 O and B main sequence stars. We use two reddening-free photometric parameters to determine the line-of-sight reddening to these stars. We find a mean reddening, 〈E(B−V )〉LMC = 0.20 mag, with a non-Gaussian tail to high values. When the reddening is c...

Received ; accepted – 2 – ABSTRACT An expression is provided for the self-lensing optical depth of the thin LMC disk surrounded by a shroud of stars at larger scale heights. The formula is written in terms of the vertical velocity dispersion of the thin disk population. If tidal forcing causes ∼ 1 − 5% of the disk mass to have a height larger than 6 kpc and ∼ 10 − 15% to have a height above 3 k...

Abstract Since the hypervelocity stars were discovered in Milky Way, various mechanisms have been proposed to explain these runaway stars. Up now, however, dominant ejected mechanism of is still unclear. As largest and closest face-on satellite galaxy Large Magellanic Cloud (LMC) serves as a good target, allowing us study this issue. Based on high-precision astrometric parameters provided by Ga...