I propose a scenario to account for the fast polar outflow detected to be blown by η Carinae in 2000. The scenario accounts also for the lack of this flow in 1998 and 1999. The scenario is based on the binary nature of η Carinae. The collision of the winds blown by the two stars, in particular near periastron passages, slows down ∼ 5% of the wind blown by η Carinae, i.e., the massive primary st...

While supernova remnants (SNRs) have long been considered prime candidates as sources of cosmic rays, it is only recently that X-ray observations have identified several shell-type SNRs dominated by nonthermal emission, thus revealing shock-accelerated electrons with energies extending far beyond the typical thermal spectrum. Two of these SNRs have been detected as sources of VHE γ-rays. In oth...

Pulsar winds shocked in the ambient medium produce spectacular nebulae observable from the radio through γrays. The shape and the spectrum of a pulsar wind nebula (PWN) depend on the angular distribution, magnetization and energy spectrum of the wind streaming from the pulsar magnetosphere, as well as on the pulsar velocity and the properties of the ambient medium. The advent of Chandra, with i...

The objective of the present study was to define the risk and the time required to develop frostnip on the face during exposure to cold winds. Twelve subjects (6 males and 6 females) were exposed to sixteen 45 min tests where the wind intensity varied between 0, 16 and 32 km/h. The tests were conducted at 0, -10, -20, -30, -40 and –50°C (only 0 km/h wind was present at -50°C). During the tests,...

Observations of the inner radian of the Galactic disk at very high energy (VHE) gamma-rays have revealed at least 16 new sources. Besides shell type supernova remnants, pulsar wind nebulae (PWN) appear to be a dominant source population in the catalogue of VHE gamma-ray sources. Except for the Crab nebula, the newly discovered PWN are resolved at VHE gamma-rays to be spatially extended (5-20 pc...

We present year-scale morphological variations of the Crab Nebula revealed by Chandra X-ray observatory. Observations have been performed about every 1.7 years over the 3 years from its launch. The variations are clearly recognized at two sites: the torus and the southern jet. The torus, which had been steadily expanding until 1.7 years ago, now appears to have shrunk in the latest observation....

The objective of the present work is to assess the global wind and wave resources in the vicinity of some developing countries by evaluating 16-year of data (2001–2016), coming from the European Centre for Medium range Weather Forecast (ECMWF). Until now, not much work has been done to evaluate and use the renewable energy sources from these marine environments. This is because most of the atte...

In this article, I discuss the past, present, and future of interdisciplinary scholarship between sociolinguists and sociologists. After detailing some of the broader history of collaboration between sociolinguists and sociologists, I examine two sub-areas of scholarship: the variationist tradition from sociolinguistics and the social stratification tradition from sociology. I contend that, giv...

This note summarizes the results of a study of the identification of theH !WW !`` ` `0 signal for MH 0 = 170 GeV/c. This study is motivated by the papers written by M. Dittmar and H. Dreiner [1][2]. We carried out a similar study using Pythia to generate events and CMSIM calorimeter simulation for the jet veto, and compared with their results. We also show some comparison between Pythia and IS...