{"id":546395,"date":"2018-11-08T04:55:42","date_gmt":"2018-11-08T08:55:42","guid":{"rendered":"https:\/\/ntrs.nasa.gov\/search.jsp?R=20180007327"},"modified":"2018-11-08T04:55:42","modified_gmt":"2018-11-08T08:55:42","slug":"grs-1739-278-observed-at-very-low-luminosity-with-xmm-newton-and-nustar","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=546395","title":{"rendered":"GRS 1739-278 Observed at Very Low Luminosity with XMM-Newton and NuSTAR"},"content":{"rendered":"<p>Abstract: We present a detailed spectral analysis of XMM-Newton and NuSTAR observations of the accreting transient black hole GRS?1739-278 during a very faint low hard state at ~0.02% of the Eddington luminosity (for a distance of 8.5 kpc and a mass of 10 solar mass). The broadband X-ray spectrum between 0.5 and 60 keV can be well-described by a power-law continuum with an exponential cutoff. The continuum is unusually hard for such a low luminosity, with a photon index of G=1.39+\/-0.04. We find eviden&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abstract: We present a detailed spectral analysis of XMM-Newton and NuSTAR observations of the accreting transient black hole GRS?1739-278 during a very faint low hard state at ~0.02% of the Eddington luminosity (for a distance of 8.5 kpc and a mass of&#8230;<\/p>\n","protected":false},"author":60,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-546395","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/546395","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/60"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=546395"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/546395\/revisions"}],"predecessor-version":[{"id":546396,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/546395\/revisions\/546396"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=546395"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=546395"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=546395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}