Christopher Immanuel
@NonlinearChris
Plasma physicist. "There is no prize to perfection. Only an end to pursuit."
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Proud to finally present this banger! We found synchrotron radiation from two extreme, near-Sun shocks! With @NASA's PSP, we directly measured the relativistic electrons and shock conditions under which such radiation is generated. iopscience.iop.org/article/10.384… 1/5
If we suppress all discussion, all criticism, proclaiming "This is the answer, my friends; man is saved!" we will doom humanity for a long time to the chains of authority, confined to the limits of our present imagination. It has been done so many times before.
In Beyond Words: How Animals Think and Feel [well researched and cited—highly recommend] ecologist Carlo Safina speculates that the lack of orca and wolf attacks on humans are bc they recognize us as social and vengeful creatures like them, whose relatives would seek revenge
I honestly believe this is one of the biggest mysteries there is, Orcas are the most efficient predators on earth, yet they have never attacked us in the wild. They know something we don’t.
In our new paper, we propose a new "time-of-flight" instability which addresses the limitations of beam-plasma interactions in homogeneous plasma which plagued the Ginzburg-Zheleznyakov model. arxiv.org/pdf/2507.08437 Also, it has the best looking type III spectrogram ever.
Large-scale disturbances (aka, coronal waves) during the filament eruption (and X1.1 flare) reported earlier. I know this kind of video is favored by some people, although its scientific value is TBD. This video at least tells us the disturbances were limited to the limb area.
A postdoc position is available to join my UKRI #UKRIFLF project. Deadline 20 April 2025, start date flexible but available immediately. Enquiries welcome. More info and application: qmul-jobs.tal.net/vx/mobile-0/ap…
Check our latest research using both #NASA and #ESA space missions on "Multimission Observations of Relativistic Electrons and High-speed Jets Linked to Shock-generated Transients"! doi.org/10.3847/2041-8… via @AAS_Publishing #Heliophysics #Astrophysics
A lens can perform the Fourier transform! 🔍 This is the 4F system: the first lens converts an image into its frequency components, and the second lens reconstructs it. By adding an aperture at the Fourier plane, we can filter out high frequencies. #Optics #Physics #b3d
In this paper, Ling Chen and colleagues have done excellent work on further exploring the properties of F-H emissions that we discovered in iopscience.iop.org/article/10.384…
Spectral Characteristics of Fundamental–Harmonic Pairs of Interplanetary Type III Radio Bursts Observed by PSP, by Ling Chen et al. astro.gla.ac.uk/users/eduard/c…
Thrilled our research on electron acceleration is out in @NatureComms! We show how a multiscale process accelerates electrons to very high energies, revealing how shocks act as natural accelerators across the Universe. nature.com/articles/s4146… #heliophysics #space #research
Parker Solar Probe has phoned home! After passing just 3.8 million miles from the solar surface on Dec. 24 — the closest solar flyby in history — we have received Parker Solar Probe’s beacon tone confirming the spacecraft is safe. go.nasa.gov/4fIKuTe
"We're trying to understand where the solar wind is born" @yeimyrivera_sol on the record-setting "kiss" of the sun by NASA's solar probe. "Understanding space weather in these energetic particles is incredibly important"
May perhaps be NASA's last great exploratory mission for a long time.
Today is the last contact with Parker Solar Probe before its historic solar flyby on Dec. 24, when it will pass just 3.8 million miles from the Sun: go.nasa.gov/4gOjAKC Next contact is Dec. 27, when Parker sends a beacon tone to confirm it’s safe. Here we go! 🛰️ ☀️ #3point8
☀️ NEW VIDEO! Immanuel Christopher Jebaraj (University of Turku) chats about his article on the Sun: youtu.be/r9zxP7iMqts The AAS Journal Author Series connects authors with their article, their human story, and the larger #astronomy community. #ExploreAstronomy 🔭
I was in the @CenterForAstro and presented a concise review of the last two exciting works that we did with @NASA PSP data. Shock waves, their structure, particle acceleration, and the resulting radiation: youtube.com/watch?v=SW8pZ6…
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HEAD seminar at CfA 12/04/2024: Immanuel Jebaraj
Recently, I sat down with @AASNova to discuss our recent work on detecting synchrotron radiation from interplanetary shocks! youtu.be/r9zxP7iMqts Based on the paper: iopscience.iop.org/article/10.384…
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AAS Journal Author Series: Immanuel Christopher Jebaraj on 2024ApJ....
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