{"id":9820,"date":"2021-05-21T12:19:07","date_gmt":"2021-05-21T11:19:07","guid":{"rendered":"https:\/\/bis-space.com\/shop\/?post_type=product&#038;p=9820"},"modified":"2021-05-21T12:19:07","modified_gmt":"2021-05-21T11:19:07","slug":"graphene-solar-photon-sails-and-interstellar-arks","status":"publish","type":"product","link":"https:\/\/bis-space.com\/shop\/product\/graphene-solar-photon-sails-and-interstellar-arks\/","title":{"rendered":"Graphene Solar Photon Sails and Interstellar Arks"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<h3>G. L. Matloff (2014),\u00a0<i>JBIS<\/i>,\u00a0<b>67<\/b>, pp.237-246<\/h3>\n<p><b>Refcode<\/b>: 2014.67.237<br \/>\n<b>Keywords<\/b>: Solar Photon Sail, Graphene, Interstellar Travel, Generation Ship<\/p>\n<p><b>Abstract:<\/b><br \/>\nA review of conceptual interstellar generation ships is followed by a presentation of optical and thermal properties of graphene and a discussion of kinematics\/thermal-aspects of the solar-acceleration phase of a starship propelled by a graphene hollowbody solar-photon sail. The spacecraft departs from an initially parabolic solar orbit and the sail is oriented normal to the Sun during solar-acceleration. Perihelion is constrained to 0.1 AU because humans can tolerate ~3g for several hours without lasting effects. The 5 x 10<sup><em>6<\/em><\/sup>kg payload mass and 9.16 x 10<sup><em>6<\/em><\/sup> kg sail mass are applied as cosmic-ray shielding for the ship&#8217;s 20-50 person population during the ~1,400-year cruise phase. Artificial gravity, the Coriolis Effect, closed-environment agriculture, illumination, on-board energy requirements, thermal dissipation, and hygiene\/recreation are considered in a discussion of habitat design. Many concepts for mid-course trajectory correction are discussed including a new one that expels mass collected by a Cassenti toroidal ion scoop in a direction normal to the ship&#8217;s trajectory. Although acceleration is affected by the unfurled sail, other options are discussed, as is the problem of protection from interstellar-dust erosion. As well as presenting the total mass budget, the conclusion reviews published variations and modifications on the generation-ship theme.<\/p>\n","protected":false},"featured_media":9868,"template":"","meta":[],"pwb-brand":[],"product_brand":[],"product_cat":[56,59,164],"product_tag":[2834,2458,697,2928],"class_list":["post-9820","product","type-product","status-publish","has-post-thumbnail","product_cat-journal-of-the-bis","product_cat-papers","product_cat-2014papers","product_tag-generation-ship","product_tag-graphene","product_tag-interstellar-travel","product_tag-solar-photon-sail","first","instock","downloadable","virtual","purchasable","product-type-simple","czr-hentry"],"jetpack_sharing_enabled":true,"brands":[],"_links":{"self":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product\/9820","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/media\/9868"}],"wp:attachment":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/media?parent=9820"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/pwb-brand?post=9820"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_brand?post=9820"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_cat?post=9820"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_tag?post=9820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}