Terra Hunting Experiment
@terrahunting.bsky.social
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Using the HARPS3 spectrograph for a 10-year radial velocity survey to discover Earth-like planets around solar-like stars. https://www.terrahunting.org/ #exoplanets #astronomy #instrumentation
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terrahunting.bsky.social
HARPS3 arrives in the Canary Islands today! Next stop ... La Palma!
terrahunting.bsky.social
Today HARPS3 is leaving the nest and migrating south!
terrahunting.bsky.social
The HARPS3 science-grade CCD is installed in the detector head - hooray! Images below show the CCD after installation into the chip carrier and then afterwards when it is sealed behind the last lens/cryostat window ready for vacuum pumping (and then cooling) ...
terrahunting.bsky.social
Today's the day we switch out the engineering grade CCD with the science grade (0) CCD! << Deep breath, steady hands >>
Reposted by Terra Hunting Experiment
asuarezmascareno.com
Moving on, René Tronsgaard is presenting HARPS-3 (@terrahunting.bsky.social), the third instrument in the HARPS family, that will observe a selected number of stars every night for 10 years, from the Isaac Newton telescope in La Palma. #eprv6
terrahunting.bsky.social
Because you can never see too many rainbows, and the HARPS3 grism is just so awesome ... take a look at the HARPS3 lab through the eye of the grism
terrahunting.bsky.social
... and the picture of the grism in its holder just before installation - how beautiful is this?!
terrahunting.bsky.social
I'm running a bit behind with the news from the lab! Not long after my last post, we installed the grism (grating + prism = grism) - the HARPS3 cross-disperser which separates the high-order overlapping diffraction orders. The world looks rainbow beautiful through the grism! 😍
terrahunting.bsky.social
... last week we installed the camera objective to the underside of the custom optical table (which fits in a large vacuum vessel). The camera objective consists of a set of 6 custom lenses - 5 of which are mounted in the barrel shown on the photo and the 6th is the detector cryostat window.
terrahunting.bsky.social
What you might have missed the past few months (because I've been too busy to post!) - intense period of sub-system integration and verification for the HARPS3 spectrograph. The past few weeks - integration of the main optical components ...
terrahunting.bsky.social
Just used Porto (web extension) to import all our old tweets. The dates below aren't preserved but they span from 2015 when the project first started to August last year for the INT robotization preliminary acceptance review :)
terrahunting.bsky.social
The newly refurbished/roboticized Isaac Newton Telescope @INGLaPalma detects its first Saturn-mass planet ;-) ... HARPS3 has an awesome telescope to install on! #INT-Preliminary-Acceptance-passed #ProjectSoft.cz #robotic-telescope-ops
terrahunting.bsky.social
A truckload full of HARPS3 goodies is on its way from @obsge to @DeptofPhysics ... exciting times!
terrahunting.bsky.social
some of the tiniest optics in HARPS3. Never let it be said optics can't be cute :) (no optics were harmed/defaced in the making of this image! :D
terrahunting.bsky.social
We had an awesome visit toyesterday. Thanks to the great team (group lead @DerryckReid) there for showing us their amazing research, including the prototype HARPS3 laser frequency-comb🤩 ... the most high-tech rainbow you'll ever see! 🌈

ultrafast.hw.ac.uk
terrahunting.bsky.social
Terra Hunting Experiment already finds alien life ... our PI @DidierQueloz😁

t.co/jS7ILTyrCc
terrahunting.bsky.social
YES! The monster HARPS3 vacuum vessel is in the lab. Awesome!
terrahunting.bsky.social
What's that coming over the hill (well, round the corner)? ... Is it a monster?
terrahunting.bsky.social
In more recent news, the development of HARPS3 and the Terra Hunting Experiment were presented in two posters at #EASLeiden2021. Check them out:and

k-poster.kuoni-congress.info/eas2021/poster… k-poster.kuoni-congress.info/eas2021/poster…
The Terra Hunting Experiment
k-poster.kuoni-congress.info