{"id":379,"date":"2016-02-12T15:43:41","date_gmt":"2016-02-12T13:43:41","guid":{"rendered":"http:\/\/starburstfound.org\/superwaveblog\/?p=379"},"modified":"2020-09-25T12:58:35","modified_gmt":"2020-09-25T09:58:35","slug":"confirmation-of-the-superwave-theory-in-seyfert-galaxy-iras170204544","status":"publish","type":"post","link":"http:\/\/starburstfound.org\/superwaveblog\/?p=379","title":{"rendered":"Confirmation of the Superwave Theory in Seyfert Galaxy IRAS17020+4544"},"content":{"rendered":"
\"Seyfert<\/a>

Seyfert galaxy IRAS17020+4544 located 800 million light years away.<\/p><\/div>\n

Posted by P. LaViolette, February 8, 2016<\/p>\n

A group of astronomers has observed an ultrafast wind of oxygen atoms blowing away from the active core of Seyfert galaxy IRAS17020+4544. \u00a0The wind was observed to be moving away from the galaxy’s active core at a velocity of 23,000 to 33,000 km\/s, or at about 10% of the speed of light. \u00a0This galaxy is of particular interest because it has a shape similar to our own and a supermassive core of mass 5.9 X 10^6 solar masses, slightly more massive than our own Galactic core, Sgr A*. \u00a0Ultrafast winds had previously been identified in more massive elliptical galaxies. \u00a0This was the first time one has been found in a galaxy similar to our own. \u00a0This provides further confirmation for the reality of superwaves, a theory first proposed 33 years ago (LaViolette, 1983<\/a>). \u00a0According to this theory these high velocity winds observed to exit from active nuclei would be driven by cosmic ray volleys propagating outward along radial trajectories.<\/p>\n

Co-author Matteo Guainazzi states:<\/p>\n

“Of course we cannot be sure, but our discovery implies that fast outflows like those found in IRAS17020+4544 may have once swept through our own Galaxy during one of these active phases\u2026\u00a0This possibility was not considered before, because this ‘feedback’ from X-ray winds was previously observed only in galaxies very different from the Milky Way.”<\/p>\n

To correct Dr. Guainazzi’s misstatement, the possibility of fast outflows having swept through our Galaxy\u00a0was<\/span>\u00a0indeed considered before back in 1983 based on a combination of Galactic, extragalactic, and geological evidence. \u00a0The results of this recent study by\u00a0A. L. Longinotti et al.<\/a>\u00a0only confirms the conclusions already reached 33 years ago.<\/p>\n

Longinotti et al. report that the wind entails a total mass loss rate of between 0.01 and 1 solar masses per year and comprises a kinetic energy of between 10^42 to 10^45 ergs\/s. \u00a0By comparison in my 1983 study I had considered a Seyfert like cosmic ray outburst from the Milky Way’s core that had a luminosity of 10^48 ergs\/s occurring about 12,000 to 14,000 years ago. \u00a0Hence if these cosmic rays were to transfer about 10^-5 of their energy to the interstellar medium, wind luminosities similar to those seen in IRAS17020+4544 would could have occurred in the Milky Way. \u00a0If anything, this finding of high velocity winds coming from active cores underlines the fact that active galactic cores are not black holes powered by matter accreted from their surroundings. \u00a0Because with such a strong wind, no matter would succeed in falling into the core. \u00a0Any nearby dust or cometary material would be vaporized and pushed outward.<\/p>\n

A mass loss rate of 0.01 to 1 Msolar per year reported above is not that great when compared with the Milky Way’s core where in its current quiescent state a high velocity wind is seen to be carrying matter away at the rate of 0.02 to 0.03 solar masses per year.<\/p>\n

For\u00a0news about this finding consider these links:
\nhttp:\/\/www.esa.int\/Our_Activities\/Space_Science\/A_Milky_Way_twin_swept_by_an_ultra-fast_X-ray_wind
\n<\/a>or
\nhttp:\/\/phys.org\/news\/2016-01-milky-twin-swept-ultra-fast-x-ray.html<\/a>.<\/p>\n

But do not be misled by the diagrams they use to illustrate their articles. \u00a0There is no evidence that this is just a polar wind. \u00a0Observations of other galaxies indicate that these winds are isotropic and hence propagate through the galaxy’s disc as well.<\/p>\n","protected":false},"excerpt":{"rendered":"

A group of astronomers has observed an ultrafast wind of oxygen atoms blowing away from the active core of Seyfert galaxy IRAS17020+4544. The wind was observed to be moving away from the galaxy’s active core at a velocity of 23,000 to 33,000 km\/s, or at about 10% of the speed of light. This galaxy is of particular interest because it has a shape similar to our own and a supermassive core of mass 5.9 X 106 solar masses, slightly more massive than our own Galactic core, Sgr A*. Ultrafast winds had previously been identified in more massive elliptical galaxies. This was the first time one has been found in a galaxy similar to our own. Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":380,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/starburstfound.org\/superwaveblog\/index.php?rest_route=\/wp\/v2\/posts\/379"}],"collection":[{"href":"http:\/\/starburstfound.org\/superwaveblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/starburstfound.org\/superwaveblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/starburstfound.org\/superwaveblog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/starburstfound.org\/superwaveblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=379"}],"version-history":[{"count":3,"href":"http:\/\/starburstfound.org\/superwaveblog\/index.php?rest_route=\/wp\/v2\/posts\/379\/revisions"}],"predecessor-version":[{"id":389,"href":"http:\/\/starburstfound.org\/superwaveblog\/index.php?rest_route=\/wp\/v2\/posts\/379\/revisions\/389"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/starburstfound.org\/superwaveblog\/index.php?rest_route=\/wp\/v2\/media\/380"}],"wp:attachment":[{"href":"http:\/\/starburstfound.org\/superwaveblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=379"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/starburstfound.org\/superwaveblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=379"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/starburstfound.org\/superwaveblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=379"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}