Daily Current Affairs Quiz 2019<\/a><\/strong><\/p>\n\n\n\nTheir new three-dimensional map, published in the journal\nScience, provides a broad view of our place among the stars.<\/p>\n\n\n\n
The map reveals the S-like structure of the Milky Way’s\nwarped stellar disc.<\/p>\n\n\n\n
“Our map shows the Milky Way disk is not flat. It is\nwarped and twisted,” said Przemek Mroz, from the University of Warsaw in\nPoland.<\/p>\n\n\n\n
“This is the first time we can use individual objects\nto show this in three dimensions,” Mroz said.<\/p>\n\n\n\n
Much of the current understanding of the spiral shape and\nstructure of our galaxy is built upon indirect measurements to celestial\nlandmarks and inferences based on other galaxies in the universe.<\/p>\n\n\n\n
However, the galactic map drafted by those limited\nobservations remains incomplete, researchers said.<\/p>\n\n\n\n
Like so many lighthouses on distant foggy shores, classical\nCepheid variable stars — massive young stellar bodies that burn hundreds, if\nnot thousands of times brighter than our own Sun — pulsate at regular\nintervals and are visible through the vast clouds of interstellar dust that\noften obscure dimmer stellar bodies.<\/p>\n\n\n\n
Using the periodic variations in their brightness,\nresearchers said the distances to these stars can be precisely determined.<\/p>\n\n\n\n
Dorota Skowron from the University of Warsaw and colleagues\ncharted the distance to more than 2,400 Cepheids throughout the Milky Way.<\/p>\n\n\n\n
Most of the Cepheids were identified by the Optical\nGravitational Lensing Experiment (OGLE) — a Polish astronomical project that\nmore than doubled the number of known galactic classical Cepheids.<\/p>\n\n\n\n
By determining the 3D coordinates of each distant pulsing\nstar relative to our Sun, Skowron and colleagues built a large-scale 3D model\nof the Milky Way galaxy.\n\nThe new map illustrates and helps constrain the\npreviously observed shape of the galaxy’s warped stellar disc.\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
The Milky Way is “warped and twisted” and not flat as previously thought, according to researchers who have developed a large-scale three-dimensional (3D) map of our galaxy. By measuring the distance from the Sun to thousands of individual pulsating stars scattered across the Milky Way, the researchers have charted the galaxy on a larger scale […]<\/p>\n","protected":false},"author":13,"featured_media":4346,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[340],"offerexpiration":[],"class_list":["post-4345","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-current-affairs-articles","tag-milky-way"],"_links":{"self":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/4345","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/comments?post=4345"}],"version-history":[{"count":1,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/4345\/revisions"}],"predecessor-version":[{"id":4347,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/4345\/revisions\/4347"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media\/4346"}],"wp:attachment":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media?parent=4345"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/categories?post=4345"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/tags?post=4345"},{"taxonomy":"offerexpiration","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/offerexpiration?post=4345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}