Mike Engesser

Staff Scientist for JWST/MIRI at the Space Telescope Science Institute.

Opinions my own

[Mike Engesser @Messenger_Astro]

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.

https://t.co/uIxOPOvNC9

[Ori Fox❓ @fox_ori]

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+ https://t.co/sQQvO4zDS9
Pierel+ https://t.co/dKejPcQ108
Siebert+ https://t.co/LZqfcu9OGF

[Mike Engesser @Messenger_Astro]

This is a 2 cycle program, but hopefully we'll have some good targets later this year to contribute to this result!

[Mike Engesser @Messenger_Astro]

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!

https://t.co/rf3w1YJQL5

[Dan Scolnic @DScol]

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 independent high-z (and photometric) sample. There's nothing I've seen yet to think differences in supernovae are the story here, but we'll be digging in regardless as everything becomes public.

[Mike Engesser @Messenger_Astro]

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.

[Mike Engesser @Messenger_Astro]

@sarahkendrew @IBJIYONGI Snowballs! Tadpoles! Dragons Breath! Claws! Lightsabers!

[Mike Engesser @Messenger_Astro]

@Astro_Jonny Haha thanks! I can actually take credit for that one

[Mike Engesser @Messenger_Astro]

Emerging from twitter dormancy to say our #JWSTCycle3 proposal was accepted! Along with a few others as Co-I. Honestly cant believe it!

[Mike Engesser @Messenger_Astro]

@FringeDoctor @sarahkendrew Thats because they pretty much did

[ESA Webb Telescope @ESA_Webb]

🆕 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: https://t.co/DCatVEq17F or 🧵👇

[Sarah Kendrew @sarahkendrew]

Thanks @RoyalAstroSoc for the recognition of our team’s work over many years. Delighted and honoured to be part of it 🥂🎉

[Mike Engesser @Messenger_Astro]

JWST Cycle 3 proposal statistics for anyone interested! https://t.co/itdh4TQma2

[Mike Engesser @Messenger_Astro]

@astronomychange Also, we already have SNe Ia at Z > 1, see https://t.co/SkDJt5Io2r

[Mike Engesser @Messenger_Astro]

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: https://t.co/CAMjeFG9QU

[Mike Engesser @Messenger_Astro]

@astronomychange I dont want to spoil the results, so I encourage you to read the paper when it comes out!

[Mike Engesser @Messenger_Astro]

@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.

[Stephanie Urbano Stawinski @astrostawinski]

🚨 It's paper day!!!

Super excited to share our Keck/DEIMOS survey of z > 3 Lyman-alpha emitters in the EGS!

https://t.co/fZ9gtnNkTG

[Space Telescope Science Institute @SpaceTelescope]

#NASAWebb researchers have made major strides in confirming the source of dust in the early universe with observations of two dying stars (supernovas!): https://t.co/p102juInon

[Mike Engesser @Messenger_Astro]

@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!