493 research outputs found

    Start-up incentives the Netherlands

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    Generally, there are three different types of start-up incentive for unemployed and inactive people in the Netherlands. The first is a set of incentives for potential entrepreneurs receiving Unemployment Benefits (UB) (Werloosheidwet - WW). Such incentives have existed since 2006 and were adjusted in 2013. Second, as of 2004 there are specific incentives for people who receive social assistance (Wet werk en inkomen - WWB). Third, there are incentives for people who are ill or who have a work disability and receive benefits related to their work incapacity (Wet werk en inkomen naar arbeidsvermogen – WIA for work disability; Ziektewet for illness; or Wajong for young disabled). These incentives are all aimed at stimulating unemployed people to leave benefits by starting-up a business. They also appear to be cost-effective, as often the incentive consists of guidance for the new entrepreneur and the temporary abolishment of the obligation to apply for a job

    Radio detections of IR-selected runaway stellar bow shocks

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    Massive stars moving at supersonic peculiar velocities through the interstellar medium (ISM) can create bow shocks, arc-like structures at the interface between the stellar wind and the ISM. Many such bow shocks have been detected and catalogued at IR wavelengths, but detections in other wavebands remain rare. Strikingly, while electrons are expected to be accelerated in the bow shock and their non-thermal emission may include synchrotron emission at low frequencies, only two massive runaway stellar bow shocks have to date been detected in the radio band. Here, we examine a sample of fifty IR-detected bow shocks from the E-BOSS catalogues in recently released radio images from the Rapid ASKAP Continuum Survey (RACS). We identify three confident and three likely counterparts, as well as three inconclusive candidates requiring confirmation via follow-up observations. These detections significantly increase the number of known radio massive stellar bow shocks and highlight the advantage of dedicated searches with current and next-generation radio telescopes. We investigate the underlying radio emission mechanism for these radio sources, finding a mix of free-free-dominated and synchrotron-dominated systems. We also discuss the non-detected targets by putting constraints on their emission properties and investigating their detectability with future observations. Finally, we propose several future avenues of research to advance the study and understanding of bow shocks at radio frequencies.Comment: 17 pages, 12 figures, 3 tables. Resubmitted to MNRAS after final round of very minor referee comment

    Discovery of accretion-driven pulsations in the prolonged low X-ray luminosity state of the Be/X-ray transient GX 304-1

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    We present our Swift monitoring campaign of the slowly rotating neutron star Be/X-ray transient GX 304-1 (spin period of ~275 s) when the source was not in outburst. We found that between its type-I outbursts the source recurrently exhibits a slowly decaying low-luminosity state (with luminosities of 10^(34-35) erg/s). This behaviour is very similar to what has been observed for another slowly rotating system, GRO J1008-57. For that source, this low-luminosity state has been explained in terms of accretion from a non-ionised ('cold') accretion disk. Due to the many similarities between both systems, we suggest that GX 304-1 enters a similar accretion regime between its outbursts. The outburst activity of GX 304-1 ceased in 2016. Our continued monitoring campaign shows that the source is in a quasi-stable low-luminosity state (with luminosities a few factors lower than previously seen) for at least one year now. Using our NuSTAR observation in this state, we found pulsations at the spin period, demonstrating that the X-ray emission is due to accretion of matter onto the neutron star surface. If the accretion geometry during this quasi-stable state is the same as during the cold-disk state, then matter indeed reaches the surface (as predicted) during this latter state. We discuss our results in the context of the cold-disk accretion model.Comment: 5 pages, 2 figures, accepted for A&A Letter
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