Mr. Dale Weigt
University of Southampton, UK
Remote X-ray telescopic observations of Jupiter in concert with Juno data
Abstract : Juno’s arrival at Jupiter back in 2016 has a provided a unique opportunity to study the jovian X-rays like never before. Since their discovery by the Einstein Observatory 40 years ago, it is only now we can combine in situdata with remote X-ray campaigns such as Chandra and XMM-Newton. This allows us to frame the X-ray aurora in the context of the magnetospheric conditions observed by Juno. Chandra and XMM data provide both spatial and spectral X-ray analysis respectively of Jupiter. In this work, we focus on the timing and mapping capabilities of the Chandra X-ray telescope. We present both timing analysis and mapping results of one ~10-hour Chandra observation while Juno was near its apojove position. We find two quasi-periodic oscillations (QPOs) at the beginning and end of the observation window with periods of ~37 mins and ~26 mins respectively. The X-ray heat maps show that morphology of the hot spot was extended during these intervals. The magnetospheric origins of the QPOs were found to lie on possible open and closed field lines near the magnetosheath at noon-dusk. We also present some future avenues which can be explored from this dataset to continue to further our understanding about the mysterious X-ray aurora.
Leave a Comment
Last Updated: 11th December 2019 by Simon Purser
2020-01-29, 15:30: Dr. D. Weigt (University of Southampton)
Mr. Dale Weigt
University of Southampton, UK
Remote X-ray telescopic observations of Jupiter in concert with Juno data
Abstract : Juno’s arrival at Jupiter back in 2016 has a provided a unique opportunity to study the jovian X-rays like never before. Since their discovery by the Einstein Observatory 40 years ago, it is only now we can combine in situdata with remote X-ray campaigns such as Chandra and XMM-Newton. This allows us to frame the X-ray aurora in the context of the magnetospheric conditions observed by Juno. Chandra and XMM data provide both spatial and spectral X-ray analysis respectively of Jupiter. In this work, we focus on the timing and mapping capabilities of the Chandra X-ray telescope. We present both timing analysis and mapping results of one ~10-hour Chandra observation while Juno was near its apojove position. We find two quasi-periodic oscillations (QPOs) at the beginning and end of the observation window with periods of ~37 mins and ~26 mins respectively. The X-ray heat maps show that morphology of the hot spot was extended during these intervals. The magnetospheric origins of the QPOs were found to lie on possible open and closed field lines near the magnetosheath at noon-dusk. We also present some future avenues which can be explored from this dataset to continue to further our understanding about the mysterious X-ray aurora.
Category: Future Seminars, Seminars
The final #Syngeweek part is now live on our website. "Yet meet we shall, and part and meet again Where dead men meet, on lips of living men." dias.ie/2020/03/23/syn… Returning visitors don't forget to clear your cookies! #DIASdiscovers
Today is the 25th anniversary of the passing of Professor J.L Synge. Part 6 and the final #SyngeWeek installment will go live this evening on our website at 6pm #DIASdiscovers
What a great idea! 👩🚀👩🚀 twitter.com/SpaceStnExplor…
#SyngeWeek Part5 is now live on our website! "One of the attractions [of coming to DIAS] for me in 1948 was the prospect of being a colleague of Schrödinger. " Read more: dias.ie/2020/03/23/syn… Returning visitors remember to clear those cookies! #DIASdiscovers
Part 5 of #SyngeWeek covers his career with DIAS, the publication of "Relativity:The General Theory" which made DIAS the leading centre for research in General relativity for the following decade. Part 4 is availble until 6pm: dias.ie/2020/03/23/syn… #DIASdiscovers
On tonight! Don't miss your chance to see this fascinating documentary about Schroedinger's time in DIAS and the seminal discovery it lead to. Not forgetting he was DIAS' first Director of Theoretical Physics. @RTEOne #DIASdiscovers #schrodinger
Returning Visitors please remember to clear those cookies!
"...sometime early in 1944, I got a phone call from Oswald Veblen, asking me whether I would like to go to Europe attached to the American Army in a scientific capacity." #SyngeWeek Part 4: Columbus & Europe is now live on our website ➡️ dias.ie/2020/03/23/syn… #DIASdiscovers
Spring Newsletter just launched! See what has happened in 2020 so far: mailchi.mp/5ea85f227dce/d… Subscribe to our mailing list today to get future editions direct to your mailbox: dias.ie/mailinglistsub… #DIASdiscovers
"...he wanted to endow international medals in mathematics (a subject omitted from Nobel Prizes, on account of Nobel's jealousy of Mittag-Leffler..." #SyngeWeek Part 3: Toronto-Dublin-Toronto dias.ie/2020/03/23/syn… Returning visitors please remember to clear those cookies 🍪
"Long before 1916 I had become a Nationalist, but the idea that there might be an armed rebellion was nothing more than a whispered rumour..." #SyngeWeek part 3 will be posted on our website this evening at 6pm. Part 2: University is available until then: dias.ie/2020/03/23/syn…
Please note the reopening date of DIAS buildings is now 20 April. dias.ie/2020/03/13/ale… #coronavirus #StayHomeSaveLives
#SyngeWeek Part Two: University, is now live on our website. "...could force the rifle down the leg of his trousers, and we set out through the Front Gate of College; " ➡️dias.ie/2020/03/23/syn… Returning visitors please be sure to clear those cookies🍪 #DIASdiscovers
#SyngeWeek part 2 is coming this evening. This will cover his University years. J.L. Synge, an Irish mathematician & physicist, whose seven decade career included significant periods in Ireland (& DIAS) Canada, and the USA. Part 1 ➡️ dias.ie/2020/03/23/syn… #DIASdiscovers
"My mother was Ellen Frances Price (1861-1935), daughter of James Price, a distinguished Irish engineer. I believe that, in so far as it was genetic, my interest in mathematics came from this side of the family."- J.L Synge More: dias.ie/2020/03/23/syn… #SyngeWeek #DIASdiscovers