We present here a study of chemical abundances in the giant elliptical galaxy M 87 using high-resolution spectra obtained with the Reflection Grating Spectrometers during two deep XMM-Newton observations. While we confirm the twotemperature structure of the inter-stellar medium (ISM) in M 87, we also show that a continuous temperature distribution describes the data equally well. The high stati...

BACKGROUND Chronic stress affects many Americans. Stress management programs may be prohibitively expensive or have limited access. PURPOSE This study aims to determine feasibility of an 8-week Internet-based stress management program (ISM) based on mindfulness principles in reducing stress in a 12-week, parallel, randomized, controlled trial. METHODS Participants were randomly allocated to...

We present 1420 MHz polarization images of a 2.5 × 2.5 region around the planetary nebula (PN) Sh 2-216. The images are taken from the Canadian Galactic Plane Survey (CGPS). An arc of low polarized intensity (size 0.2×0.7) appears prominently in the north-east portion of the visible disk of Sh 2-216, coincident with the optically identified interaction region between the PN and the interstellar...

We have observed CO J = 2 → 1 and J = 1 → 0, and CO J = 1 → 0 emission in two regions of HI Self-Absorption (HISA) in Perseus: a small, isolated HISA feature called the globule and a more extended HISA cloud called the complex. Using both Large Velocity Gradient and Monte Carlo radiative transfer codes we found that, in the globule, N(CO) < 6.0 × 10 cm which, using PDR models, implies that N(H2...

We study the effects of the initial conditions of turbulent molecular clouds on the ionization structure in newly formed H ii regions, using three-dimensional, photon-conserving radiative transfer in a precomputed density field from three-dimensional compressible turbulence. Our results show that the initial density structure of the gas cloud can play an important role in the resulting structur...

The size, scope and significance of Internet Social Media (ISM) services have grown exponentially in recent years. This paper discusses the context, methodology, findings, and conclusions from an exploratory study that assessed users’ preferences of ISM services. The study uses a mixed methods approach to explain why ISM services are liked or disliked by users. This is an important area for res...

Past ultraviolet and optical observations of stars hosting close-in Jupiter-mass planets have shown that some of these stars present an anomalously low chromospheric activity, significantly below the basal level. For the hot Jupiter planet host WASP-13, observations have shown that the apparent lack of activity is possibly caused by absorption from the intervening interstellar medium (ISM). Ins...

We use a combination of three-dimensional Monte Carlo radiative transfer techniques and multiwavelength (BRHK, Hα) imaging data to investigate the nature of the interstellar medium (ISM) in the edge-on, low surface brightness (LSB) galaxy UGC 7321. Using realistic models that incorporate multiple scattering effects and clumping of the stars and the interstellar material, we explore the distribu...