Chapter 1. Binary Stars

Question Use your knowledge of the Doppler shift to determine a star's perpendicular motion.

UBBG5G4uysKZ4pWi+znCKUcxBErCn/VwbsYINXB2xzR9+7vxn3VU5dqnEDYaStJdgJ6o3rJY3Ff32SJw3o9CkMDFNCaoyg+h9TQOez60Sic1F4dQ1zR6TGYhHNIRpt3kju9ch/J+kApqwCEC {"title":"selection","description":"","type":"correct","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"106,101,122,165\"},{\"shape\":\"rect\",\"coords\":\"203,102,227,166\"},{\"shape\":\"rect\",\"coords\":\"324,125,328,125\"},{\"shape\":\"rect\",\"coords\":\"302,93,327,174\"}]"}

Question Use your knowledge of the Doppler shift to determine a star's maximum distance from Earth.

RMr479sZeuTtAwdUTzXkdEe6LZ2z5QvyT2rm2Pfy4bUxRXbP+HHlPBiFjyc87Ig5WT33p3/mxrtuZLOXDYVqdZ5n6+8oX3ummh21jkr1o7PPrPAepYGsbQ== {"title":"selection","description":"At this point Star B's light curve is peaking in terms of its red shift. The top of the curve represents the point where Star B is at its farthest point in it's orbit, as seen from Earth.","type":"correct","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"324,125,328,125\"},{\"shape\":\"rect\",\"coords\":\"237,109,241,109\"},{\"shape\":\"rect\",\"coords\":\"199,36,229,143\"}]"}

Question How can a light curve be used to determine when binaries eclipse?

mWOaP1PfH/JS4a/KuVcqW2HdoUB992aacRbk/EmEGlkEjqc17rheKxhgf+EjLRsmR2iwaIHBzhMcHn5+wuuyhw7Dgf2QozJS0MgRvYfsynchUafWRSBeGvsPzD3tzKA7zIQAk+Dkp299uhfjEyjv875uWGAudTY5xtNiIcb6vfvTTbTdeTj7COBuvk4Zg1zUKolh8ToZnmS8CUqmzpHeEhvuxjhDhHDpmB02ANhelJNSw1NtJbjojiOE4BauK2iX82u1AcKbBZR6MEK4 {"title":"selection","description":"At this point, the dimmer star is effectively blocking some of the light from the brighter star.","type":"correct","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"324,125,328,125\"},{\"shape\":\"rect\",\"coords\":\"65,64,115,150\"},{\"shape\":\"rect\",\"coords\":\"363,64,417,154\"}]"}

Question How can a light curve be used to determine when binaries eclipse? Part 2

ivmVvDo1OeY+Qah11bP7+9wBE9Z4hifTKV0/kuCu6UCZJLmvrlS59JRdF85rb6AXa7tJlhHf/rVsG+GNbqvqRXF14WzrqO/Qj9w8ugBeXiSWoj57P9MU9YiWeRCfo5xqUuV4bbV6C44AiHQ93Vsh8hNn40MDiP2d7WyYD9qo+SGzeZmPFFp14Ql4zqpFLrsSotlINpT18d35UjI1z502kA6z/sOp8ws+taamlJifuz9LMGQmDnRQX7Lih5w= {"title":"selection","description":"At this point, the brighter star is effectively blocking some of the light from the dimmer star. This causes the light received on Earth to be diminished, but not to the extent as when the dim star eclipsed the bright star.","type":"correct","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"324,125,328,125\"},{\"shape\":\"rect\",\"coords\":\"212,63,266,112\"}]"}

Question Activity Completed

You have completed this activity!