4 papers on arXiv today studying the tensions on H0 and S8: arxiv.org/abs/2102.12902, arxiv.org/abs/2102.12758, arxiv.org/abs/2102.12498, arxiv.org/abs/2102.12489. Looking forward to Euclid data to shed some new light on these tensions!
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Enabling Weak Lensing Cosmology
58 posts
Going beyond 2-point statistics for weak lensing can provide a lot of useful information! arxiv.org/abs/2102.10177
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One step closer to exploring the Universe!
ESA Science@esascience
The @ESA_Euclid optical and infrared instruments are now fully integrated into the spacecraft! This is an important step for #Euclid, which is scheduled for launch in 2022 to investigate dark matter, dark energy and the expanding Universe 🚀 📸👉esa.int/ESA_Multimedia…
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Constraining cosmological parameters with the most recent cosmic shear analysis of the Kilo-Degree Survey (KiDS-1000), arxiv.org/abs/2007.15633. Find out more about how cosmologists are pushing the boundaries of knowledge on the current understanding of our Universe! #weaklensing
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Cosmic shear is a category of weak lensing, weak lensing is a category of gravitational lensing, and a type of macro lensing. We're interested in cosmic weak macro gravitational lensing; but most people will also just use "shear" :)
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Machine learning is promising and rapidly growing area of research for #weaklensing . The first paper that mentions that such methods could be important, that we can find, was in 1996 authors.library.caltech.edu/97373/2/961210… Can anyone find an early reference?
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#weaklensing doesn’t just affect galaxy observations. Here is a recent paper looking at lensing of the Cosmic Microwave Background arxiv.org/abs/2101.12193
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#weaklensing affects not just galaxy observations. Here a recent paper looking at lensing of 21cm emission arxiv.org/abs/2101.11372
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The full DES data release is now available to everybody
Fermilab@Fermilab
The Dark Energy Survey has made public a catalog of nearly 700 million astronomical objects! The full data release is online and available to explore: news.fnal.gov/2021/01/dark-e… @theDESurvey @NCSAatIllinois @NOIRLabAstro #AAS237 #DESDR2
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Our full data release (data release 2), from all six years of observations is now public! Check out the link and thread for more details!
Fermilab@Fermilab
The Dark Energy Survey has made public a catalog of nearly 700 million astronomical objects! The full data release is online and available to explore: news.fnal.gov/2021/01/dark-e… @theDESurvey @NCSAatIllinois @NOIRLabAstro #AAS237 #DESDR2
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New paper regarding the computation of PAUS photometric redshifts from narrowband filters with gaussian processes!
arxiv.org/abs/2101.03723
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The 2020s astronomy data revolution is coming! SPHEREx, @VRubinObs @NASARoman, @SimonsObs, @ESA_Euclid, and @eROSITA_SRG will be imaging much of the sky. With modern data science tools, it will be a decade of discovery!
Thomas Zurbuchen@Dr_ThomasZ
JUST IN: We’ve approved preliminary design plans for @NASAUniverse's SPHEREx! This space telescope will map the entire sky to study the rapid expansion of the universe after the big bang, the composition of young planetary systems & more. See what’s next: go.nasa.gov/3hHD6uQ
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@ESA_Euclid launches next year! 🚀 prepare for your view of the cosmos to change 🌃🛰
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k-cut 3 x 2 point statistics to reduce sensitivity to small poorly modeled scales and forecasts for #Euclid.
Let's find it out! 🤓🧐🤟
arxiv.org/abs/2012.04672
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Waiting for #Euclid... 👊
ESA's Euclid mission@ESA_Euclid
The #EuclidMission is designed to map Dark Matter (DM) with weak lensing. But it shall also discover more than 100,000 strongly lensed galaxies. A recent study with #Hubble data suggests that there could be an ingredient missing from current DM theories. spacetelescope.org/news/heic2016/
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Deep learning to predict the non-linear behaviour at small scales arxiv.org/abs/2012.00240. These approaches could significantly reduce the computational needs in simulations for future weak lensing surveys
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A new emulator for baryonic effects has appeared today on the arXiv: arxiv.org/abs/2011.15018. This kind of emulators will be crucial to extract the maximum amount of information from next-generation weak lensing surveys!
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