遇见数据集

NGCvirgul4736: Host of exotic Ultraluminous X-ray sources

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ESA Earth Online2026-06-22 收录
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We have detected four Ultraluminous Xray Sources (ULXs) in the nearestearlytype galaxy NGC4736 (M94). For the first time, we have detected a highlyblueshifted OVIII line in the spectrum of a ULX, which is in accordance with thepredictions of our geometrical beaming model. We have also detected a possibleperiodic (virgul24 ks) ULX and another two ULXs, which are the most promisingintermediate mass black hole systems (based on our multiwavelength results). Toconfirm these exciting results and/or to detect them at different spectralstates with contemporaneous radio and optical data, which we will arrange, wepropose 48 ks XMMNewton observations of this galaxy. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]

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European Space Agency
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