21. Plugging in the radiation pressure , instead of the ideal gas pressure used above, yields 22. These solid fragments of matter are then injected into the interstellar medium by radiation pressure . 23. Radiation pressure from the hot young stars will eventually drive most of the gas away.24. A living star is also supported by radiation pressure . 25. This article addresses the macroscopic aspects of radiation pressure . 26. Jagged patterns within result from interactions with interstellar wind, radiation pressure , magnetic fields, and gravity. 27. Particles which are affected primarily by radiation pressure are known as " beta meteoroids ". 28. Solar radiation pressure is calculated from the solar constant. 29. In the Sun, radiation pressure is still quite small when compared to the gas pressure. 30. The consideration begins by noting the relation between the radiation pressure P rad and luminosity.