1 00:00:01,040 --> 00:00:04,000 [slate] 2 00:00:04,000 --> 00:00:08,000 [slate] 3 00:00:08,000 --> 00:00:12,000 [slate] 4 00:00:12,000 --> 00:00:16,000 But there are two other parameters that we could look at if we only had 5 00:00:16,000 --> 00:00:20,000 the tools to do that. And those have to do with the polarization of 6 00:00:20,000 --> 00:00:24,000 the degree of polarization and the position 7 00:00:24,000 --> 00:00:28,000 angle. The angle associated with the polarization. So 8 00:00:28,000 --> 00:00:32,000 by doing this mission we’re opening up two more degrees 9 00:00:32,000 --> 00:00:36,000 of freedom to be able to try to understand how are 10 00:00:36,000 --> 00:00:40,000 the x-rays produced, what are the models. We have to be able to predict 11 00:00:40,000 --> 00:00:44,000 the polarization that we will turn out to measure. So it’s really exciting. 12 00:00:44,000 --> 00:00:48,000 [slate] 13 00:00:48,000 --> 00:00:52,000 [slate] Our science 14 00:00:52,000 --> 00:00:56,000 group has studied, we have seven different teams of studying 15 00:00:56,000 --> 00:01:00,000 different classes. So for example the 16 00:01:00,000 --> 00:01:04,000 radio pulsars, supernova remnants 17 00:01:04,000 --> 00:01:08,000 etcetera. And so we have, we’re going to be looking at seven different 18 00:01:08,000 --> 00:01:12,000 classes and several examples of those classes. 19 00:01:12,000 --> 00:01:16,000 So that we get a good preliminary survey of what polarization 20 00:01:16,000 --> 00:01:20,000 is out there. [slate] 21 00:01:20,000 --> 00:01:24,000 [slate] 22 00:01:24,000 --> 00:01:28,000 You say “well I’m not interested in that,” you know maybe polarization 23 00:01:28,000 --> 00:01:32,000 might be interesting. Maybe it won’t be. Let’s wait and see what some mission 24 00:01:32,000 --> 00:01:36,000 tells us. So IXPE is the "let’s wait and see" what some mission 25 00:01:36,000 --> 00:01:40,000 tells us finally. 26 00:01:40,000 --> 00:01:44,000 [slate] 27 00:01:44,000 --> 00:01:48,000 I look at IXPE as being the 28 00:01:48,000 --> 00:01:52,000 first real mission that has capability of measuring 29 00:01:52,000 --> 00:01:56,000 polarization to the reasonable degree of accuracy 30 00:01:56,000 --> 00:02:00,000 so that we can look at 31 00:02:00,000 --> 00:02:04,000 dozens to maybe a hundred different sources and really look at different classes 32 00:02:04,000 --> 00:02:08,000 and try to understand how big a role it’s playing. 33 00:02:08,000 --> 00:04:17,813 [slate for associated b-roll]