Mike Engesser @Messenger_Astro
Staff Scientist for JWST/MIRI at the Space Telescope Science Institute. Opinions my own Joined November 2021-
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Proud to finally see our group's work out there! Among other things, the highest redshift SN Ia known at z=2.9! Plenty more where this came from. webbtelescope.org/contents/news-…
Big paper splash. New era in high-z transients begins. We use #JWST to find >40 SNe with redshifts 2<z<5...inc. spectra! 3 papers led by *early career researchers*. #AAS244 1/n DeCoursey+ arxiv.org/abs/2406.05060 Pierel+ arxiv.org/abs/2406.05089 Siebert+ arxiv.org/abs/2406.05076
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This is a 2 cycle program, but hopefully we'll have some good targets later this year to contribute to this result!
At the moment, JWST is the ONLY observatory that can find such supernovae. We'll be depending on all public data for which we can do difference imaging. Luckily, we've gotten pretty good at that.
On the topic of the DESI, and potential differences in supernovae, I thought it might be worth sharing our JWST Cycle 3 program and what we're doing, because it is highly relevant to all this! stsci.edu/jwst/science-e…
So it's a little weird seeing DESI people in the press articles talk about supernova differences. Now, should there be differences? In short, P+ and UNION have a high degree (though not total) of overlap in data, extremely different in analysis. DES-5yr has a completely
@sarahkendrew @IBJIYONGI Snowballs! Tadpoles! Dragons Breath! Claws! Lightsabers!
@Astro_Jonny Haha thanks! I can actually take credit for that one
Emerging from twitter dormancy to say our #JWSTCycle3 proposal was accepted! Along with a few others as Co-I. Honestly cant believe it!
@FringeDoctor @sarahkendrew Thats because they pretty much did
Mike Engesser retweeted
🆕 The @RoyalAstroSoc has awarded the 2024 Group Achievement Award in Astronomy to the team responsible for designing and building Webb’s MIRI instrument! 🎉 Read more: esawebb.org/announcements/… or 🧵👇
Mike Engesser retweeted
Thanks @RoyalAstroSoc for the recognition of our team’s work over many years. Delighted and honoured to be part of it 🥂🎉
🆕 The @RoyalAstroSoc has awarded the 2024 Group Achievement Award in Astronomy to the team responsible for designing and building Webb’s MIRI instrument! 🎉 Read more: esawebb.org/announcements/… or 🧵👇
JWST Cycle 3 proposal statistics for anyone interested! stsci.edu/contents/news/…
@astronomychange Also, we already have SNe Ia at Z > 1, see iopscience.iop.org/article/10.384…
In cool astro news - The PEARLS team discovered a gravitationally lensed supernova in #JWST observations of PLCK+G165. The target is SN H0pe, likely Type Ia SN at z~2, and triply imaged! See the AstroNote here: wis-tns.org/astronotes/ast…
@astronomychange I dont want to spoil the results, so I encourage you to read the paper when it comes out!
@AstroJake I think it boils down to the fact that most of the last century of incidents were apparently covered up, and those involved did so with no congressional oversight. The difference is that now, we have credible reports out in the public, and these reports show a clear danger.
Mike Engesser retweeted
🚨 It's paper day!!! Super excited to share our Keck/DEIMOS survey of z > 3 Lyman-alpha emitters in the EGS! arxiv.org/abs/2307.04782
Mike Engesser retweeted
#NASAWebb researchers have made major strides in confirming the source of dust in the early universe with observations of two dying stars (supernovas!): webbtelescope.pub/3CRzTnL
@LEGO_JWST I dont have any codes atm but I posted this on the new bloo sky site since many of us are there now!
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