| Name: | Sindhuja Gunaseelan |
| Affiliation: | Catholic University of America/NASA Goddard Space Flight Center |
| Conference ID : | ASI2024_523 |
| Title : | A study on the Interplanetary Shock Kinematics in the Inner Heliosphere |
| Authors : | Sindhuja. G 1,2, H. Xie 1,2, N. Gopalswamy 1 |
| Authors Affiliation: | 1 Sindhuja. G, H. Xie The Catholic University of America
2 Sindhuja. G, H. Xie, N. Gopalswamy NASA Goddard Space Flight Center |
| Mode of Presentation: | Poster |
| Abstract Category : | Sun, Solar System, Exoplanets, and Astrobiology |
| Abstract : | We report on a study on the kinematics of coronal mass ejections (CMEs) and their shocks depending on the type of solar source: active region flares and filament eruptions. The study involves the kinematics of the two group of events as they evolve in the corona and inner heliosphere. We compiled a list of CMEs with interplanetary counterparts that originated from close to the disk center. The study includes all such events that occurred during solar cycle 24 (2009-2019). We obtain the three-dimensional speed of CMEs and shocks in the corona and interplanetary medium by fitting a Graduated Cylindrical Shell (GCS) flux rope to the CME and a spheroid to the shock. Close to the Sun, we use EUV images from the Solar Dynamics Observatory (SDO) and the Solar Terrestrial Relations Observatory (STEREO) in the forward modeling. In the coronagraph field of view, we use images from STEREO and the Solar and Heliospheric Observatory (SOHO) missions. We find that in flare-related events, the CME/shock speed is approximately 2.5 times larger than that in filament eruption events. We also highlight the differences in other parameters such as the time profiles of CME/shock height, speed and acceleration. |
