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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Enabling Weak Lensing Cosmology retuiteado
Enabling Weak Lensing Cosmology retuiteado
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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Enabling Weak Lensing Cosmology retuiteado
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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Enabling Weak Lensing Cosmology retuiteado
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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