{"id":1873,"date":"2017-05-18T20:32:20","date_gmt":"2017-05-19T04:32:20","guid":{"rendered":"http:\/\/jazzistentialism.com\/blog\/?p=1873"},"modified":"2017-06-27T22:41:08","modified_gmt":"2017-06-28T06:41:08","slug":"galactic-nova-asassn-17gk-first-spectrum","status":"publish","type":"post","link":"https:\/\/jazzistentialism.com\/blog\/?p=1873","title":{"rendered":"Galactic Nova ASASSN-17gk"},"content":{"rendered":"

Nova ASASSN-17gk (ATel #10387<\/a>) was confirmed at Shenton Park Observatory using the ALPY 600 at R~530. This very bright nova in Centaurus is near maximum and was easily identified with a 600s exposure. Further detail kindly provided by Prof. Steve Shore can\u00a0be found in the confirmation ATel (ATel #10399<\/a>) and\u00a0subsequent correction (ATel #10400<\/a>).<\/p>\n

\"asassn-17gk_Luckas_Flux_Hb\"<\/a>\"ASASSN-17gk\"<\/a><\/p>\n

B and V band images were acquired subsequent to the spectra under increasingly cloudy conditions. Photometry yielded magnitudes:
\nB= 11.78 (transformed)
\nV=10.70 (transformed)<\/p>\n

Expand to read more …<\/p>\n

<\/p>\n

Confirmation Spectra:<\/p>\n

\"_asassn-17gk_20170518_428_Paul<\/a>

A single 600s exposure, calibrated with the Aply’s internal Ne\/Ar lamp shows characteristic Balmer and Fe emission of a nova in outburst.<\/p><\/div>\n

\"_asassn-17gk_20170518_428_Paul<\/a>

The instrument and atmosphere corrected profile (using nearby HD 114570 as the reference).<\/p><\/div>\n

Photometric image:<\/p>\n

\"V-band<\/a>

V-band image, 10 second exposure (SBIG ST-10XEI)<\/p><\/div>\n

 <\/p>\n

Spectrophotometry (flux calibrated profiles), derived from transformed V-band photometry taken adjacent in time to the spectra (click to enlarge):<\/p>\n

\"asassn-17gk_<\/a><\/p>\n

\"asassn-17gk_Luckas_Flux_Hb\"<\/a><\/p>\n

Velocity plot of the H-a emission:<\/p>\n

\"asassn-17gk_Luckas_Velocity\"<\/a><\/p>\n

Two Animated GIF files showing development of the H-a and Fe features in 12 spectra spanning May 18 to 31:<\/p>\n

\"ASASSN-17gk_Luckas_fullspectrum\"\"ASASSN-17gk_Luckas_Fe\"<\/p>\n","protected":false},"excerpt":{"rendered":"

Nova ASASSN-17gk (ATel #10387) was confirmed at Shenton Park Observatory using the ALPY 600 at R~530. This very bright nova in Centaurus is near maximum and was easily identified with a 600s exposure. Further detail kindly provided by Prof. Steve … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[20,19],"tags":[],"_links":{"self":[{"href":"https:\/\/jazzistentialism.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1873"}],"collection":[{"href":"https:\/\/jazzistentialism.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jazzistentialism.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jazzistentialism.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/jazzistentialism.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1873"}],"version-history":[{"count":12,"href":"https:\/\/jazzistentialism.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1873\/revisions"}],"predecessor-version":[{"id":1920,"href":"https:\/\/jazzistentialism.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1873\/revisions\/1920"}],"wp:attachment":[{"href":"https:\/\/jazzistentialism.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jazzistentialism.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jazzistentialism.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}