{"id":325,"date":"2019-01-11T14:40:58","date_gmt":"2019-01-11T13:40:58","guid":{"rendered":"http:\/\/frantzmartinache.eu\/?p=325"},"modified":"2019-04-24T12:29:59","modified_gmt":"2019-04-24T10:29:59","slug":"kernel-phase-science-paper-accepted-by-aa","status":"publish","type":"post","link":"https:\/\/frantzmartinache.eu\/index.php\/2019\/01\/11\/kernel-phase-science-paper-accepted-by-aa\/","title":{"rendered":"Kernel-phase science paper accepted by A&#038;A!"},"content":{"rendered":"\n<p>Romain Laugier, PhD student contributing to the KERNEL project, saw his first paper accepted by the journal Astronomy &amp; Astrophysics. The paper shows how images affected by some amount of saturation can be salvaged to make them kernel-compatible again.<\/p>\n\n\n\n<p>Using an archival HST\/NICMOS dataset from 1997, Romain was able to show on a known low-mass binary that the recovery algorithm is effective. The signature of the 4.36 magnitude contrast companion, invisible in the original image, is present in the kernel-phase extracted from that image. This kernel-signature was used to constrain the position and contrast of the companion.<br><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"373\" height=\"404\" src=\"http:\/\/frantzmartinache.eu\/wp-content\/uploads\/2019\/01\/Gl494_image.png\" alt=\"\" class=\"wp-image-327\" srcset=\"https:\/\/frantzmartinache.eu\/wp-content\/uploads\/2019\/01\/Gl494_image.png 373w, https:\/\/frantzmartinache.eu\/wp-content\/uploads\/2019\/01\/Gl494_image-277x300.png 277w\" sizes=\"(max-width: 373px) 100vw, 373px\" \/><figcaption>Saturated HST\/NICMOS image of Gl 494.<\/figcaption><\/figure><\/div>\n\n\n\n<p>This new resolved observation of the low mass companion to Gl 494 along with other recently published images, combined with a long series of archival radial velocity observations by two instruments, lead to very strong constraints on the orbital elements, and ultimately, the dynamical masses of this binary object.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"705\" height=\"551\" src=\"http:\/\/frantzmartinache.eu\/wp-content\/uploads\/2019\/01\/Gl494_orbit-1.png\" alt=\"\" class=\"wp-image-331\" srcset=\"https:\/\/frantzmartinache.eu\/wp-content\/uploads\/2019\/01\/Gl494_orbit-1.png 705w, https:\/\/frantzmartinache.eu\/wp-content\/uploads\/2019\/01\/Gl494_orbit-1-300x234.png 300w\" sizes=\"(max-width: 705px) 100vw, 705px\" \/><figcaption>Visual orbit of Gl 494 b.<\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"723\" height=\"527\" src=\"http:\/\/frantzmartinache.eu\/wp-content\/uploads\/2019\/01\/Gl494_RV-1.png\" alt=\"\" class=\"wp-image-332\" srcset=\"https:\/\/frantzmartinache.eu\/wp-content\/uploads\/2019\/01\/Gl494_RV-1.png 723w, https:\/\/frantzmartinache.eu\/wp-content\/uploads\/2019\/01\/Gl494_RV-1-300x219.png 300w\" sizes=\"(max-width: 723px) 100vw, 723px\" \/><figcaption>Radial velocity of Gl 494 induced by the presence of the low mass companion.<\/figcaption><\/figure><\/div>\n\n\n\n<p>Congratulations to Romain for successfully bringing this paper to the finish line: may this be the first of many others to come! The preprint version of the paper is available for download on the arXiv.org website: <a href=\"http:\/\/arxiv.org\/abs\/1901.02824\">http:\/\/arxiv.org\/abs\/1901.02824<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Romain Laugier, PhD student contributing to the KERNEL project, saw his first paper accepted by the journal Astronomy &amp; Astrophysics. The paper shows how images affected by some amount of saturation can be salvaged to make them kernel-compatible again. Using an archival HST\/NICMOS dataset from 1997, Romain was able to show on a known low-mass &hellip; <a href=\"https:\/\/frantzmartinache.eu\/index.php\/2019\/01\/11\/kernel-phase-science-paper-accepted-by-aa\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Kernel-phase science paper accepted by A&#038;A!<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,2],"tags":[15,14,16],"_links":{"self":[{"href":"https:\/\/frantzmartinache.eu\/index.php\/wp-json\/wp\/v2\/posts\/325"}],"collection":[{"href":"https:\/\/frantzmartinache.eu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/frantzmartinache.eu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/frantzmartinache.eu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/frantzmartinache.eu\/index.php\/wp-json\/wp\/v2\/comments?post=325"}],"version-history":[{"count":7,"href":"https:\/\/frantzmartinache.eu\/index.php\/wp-json\/wp\/v2\/posts\/325\/revisions"}],"predecessor-version":[{"id":344,"href":"https:\/\/frantzmartinache.eu\/index.php\/wp-json\/wp\/v2\/posts\/325\/revisions\/344"}],"wp:attachment":[{"href":"https:\/\/frantzmartinache.eu\/index.php\/wp-json\/wp\/v2\/media?parent=325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/frantzmartinache.eu\/index.php\/wp-json\/wp\/v2\/categories?post=325"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/frantzmartinache.eu\/index.php\/wp-json\/wp\/v2\/tags?post=325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}