| About | South African cisgender, bisexual woman Assoc. Astrophysics Prof., Rhodes scholar (and lover of loud karaoke), Senior TED Fellow. Feminist scientist. She/her |
This is #Antisemitism. It is directed at me as a trustee, and as a physician. But it isn’t about masks or vaccines. It is simply #hate.
I am calling on leaders in #Ottawa #Ontario and #Canada to speak out.
Who will say #EnoughIsEnough?
#MaunaLoa Telescope update!
The ATLAS units have been shut down finally and people have left. The picture below was taken by one of those folks.
The power is out, it's possible the power lines were taken out by lava. It will be a while before people can go back and check on material.
Until then ATLAS still has 3 units across the globe to detect any potentially dangerous asteroids that could hit earth!
So we stay safe from the sky whilst we admire the power of mother Earth 🙏 🌋
Current #eruption at #MaunaLoa has moved from the Summit to the #NortheastRiftZone .
Thermal imagery of the Summit Caldera still shows the tremendous about of heat provided by Sunday nights initial eruption. The regular Summit camera has no color at night indicating no new breakouts at the surface.
The Northeast Rift Zone, as viewed from Mauna Kea, you can clearly see the active lava flows.
In previous work we identified a population of 38 cool and luminous variable stars in the Magellanic Clouds and examined 11 in detail in order to classify them as either Thorne-Żytkow Objects (TŻOs, red supergiants with a neutron star cores) or super-AGB stars (the most massive stars that will not undergo core collapse). This population includes HV\,2112, a peculiar star previously considered in other works to be either a TŻO or high-mass AGB star. Here we continue this investigation, using the kinematic and radio environments and local star formation history of these stars to place constraints on the age of the progenitor systems and the presence of past supernovae. These stars are not associated with regions of recent star formation, and we find no evidence of past supernovae at their locations. Finally, we also assess the presence of heavy elements and lithium in their spectra compared to red supergiants. We find strong absorption in Li and s-process elements compared to RSGs in most of the sample, consistent with super-AGB nucleosynthesis, while HV\,2112 shows additional strong lines associated with TŻO nucleosynthesis. Coupled with our previous mass estimates, the results are consistent with the stars being massive (~4-6.5M$_{\odot}$) or super-AGB (~6.5-12M$_{\odot}$) stars in the thermally pulsing phase, providing crucial observations of the transition between low- and high-mass stellar populations. HV\,2112 is more ambiguous; it could either be a maximally massive sAGB star, or a TŻO if the minimum mass for stability extends down to <13 M$_\odot$.
Well, finally after all these years, someone's got an intuitive explanation of the moves required for Rubik's cube!
あの伝説のルービックキューブをさらにわかりやすくしました
🐦🔗: https://twitter.com/jagarikin/status/1593771091738374144
People are understandably objecting to the suggestion that one avoids words like “caring” or “helpful” in academic reference letters.
We all want caring & helpful colleagues! But this misses a key point.
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RT @SciBry
It's that time of year. How to avoid gender bias when writing recommendation letters.
https://twitter.com/SciBry/status/788160313044631552
Interesting stuff!! 👀
"Back-to-back #meetings are messing our brains.
Here's some cool #research from #microsoft
Microsoft’s Human Factors Lab measured the #brain activity of 14 individuals.
For those *with breaks* b/w meetings:
- Their brains were steady and experienced "coolness."
For those *without breaks* b/w meetings
- Their stress increased with time, suggesting a "buildup of stress."
It's almost 2023. Either we need to fix meetings or kill them."
Via https://www.linkedin.com/feed/update/urn:li:activity:6996865804457693184/
Bryan Gaensler 📡🧲
Nili Kaplan-Myrth, MD PhD
Dr. Heloise Stevance✨🐍
Robin Lacassin
TheArchaeologist
Anna O'Grady
Sean Carroll
Carlos E. Perez @IntuitMachine
Tony 📊