Solar wind velocities for C/2013 R1 (Lovejoy)
收藏Figshare2021-12-14 更新2026-04-08 收录
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This dataset was analysed and presented in the <b>‘Solar Wind Velocities at Comets C/2011 L4 Pan-STARRS and C/2013 R1 Lovejoy derived using a New Image Analysis Technique’ paper. Submitted to JGR - Space Physics</b>.<br><br>The software can be made available upon request. Please contact the author at yudish@hawaii.edu. This dataset was collected from amateur astrophotographers from around the world and observations from the Isaac Newton Telescope were undertaken by Y. Ramanjooloo and K. Birkett. The data spanned two weeks on either side of the comet’s perihelion and covers part of Carrington Rotation 2144 and 2145. <br><br>Each image was processed through IDL using the main technique described in the paper to produce radial solar wind velocity estimates from the cometary ion tail of comet C/2013 R1 (Lovejoy).<br>The processed variables, including the final solar wind velocity results are stored as individual .sav files for each image. IDL is required to open and analyse these .sav files. the python package readsav is also available - see links below.<br><br><br>In repository:<br><br>1. Image of comet C/2013 R1 (Lovejoy) acquired by G. Rhemann on 13 December 2013 at 03:41 UT<br>[https://figshare.com/ndownloader/files/31785983/preview/31785983/preview.jpg]<br><br>2. Data coverage of C/2013 R1 (Lovejoy) as observed from Earth and mapped onto the comet’s orbital plane. The Sun is at (0,0) and the perihelion defines the y-axis. <br>[https://figshare.com/ndownloader/files/31785986/preview/31785986/preview.jpg]<br>To produce a plot, the solar wind velocities must be obtained from each image.<br><br>***Note:***<br><br>.sav files are saved variables processed via IDL. More info can be found here:<br><br>.sav: https://www.l3harrisgeospatial.com/docs/save.html<br><br>IDL : https://www.l3harrisgeospatial.com/<br><br>The following python package is available to process .sav files though the authors have no experience with this package.<br><br>https://docs.scipy.org/doc/scipy/reference/generated/scipy.io.readsav.html<br>
提供机构：
Ramanjooloo, Yudish; Jones, Geraint
创建时间：
2021-12-14
