Dark Energy Survey @theDESurvey
Working at the Victor Blanco Telescope in Coquimbo Chile. Official news from the Dark Energy Survey. darkenergysurvey.org Cerro Tololo Inter-Am Observ. Joined October 2013-
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For more than 20 years in experimental particle physics and astrophysics, machine learning has been accelerating the pace of science, helping scientists tackle problems of greater and greater complexity. symmetrymagazine.org/article/machin… #AI
Have you ever looked at a remarkably detailed image of a galaxy or nebula and wondered how the light from that object got from interstellar space to your screen? 💻The answer is via the power of a light-capturing chip called CCD. Read our latest blog: ow.ly/Cm1n50RlIkx
Today for #GlobalAstronomyMonth we want to highlight the Víctor M. Blanco 4-meter Telescope 🔭! Located at the @NSF @cerrotololo, Chile, this telescope was commissioned in 1974. It is a near twin of the Nicholas U. Mayall 4-meter Telescope at @KittPeakNatObs 🧵⬇️
🌞 Eclipse Day is here! 🌚 Today, much of North America will witness a #SolarEclipse, with a lucky few getting to experience a #TotalSolarEclipse. Share your photos with us! Here are some stunning shots from the July 2, 2019 eclipse in Chile for inspiration. Clear skies! ✨🔭
#GlobalAstronomyMonth is here! Let’s celebrate throughout the month by highlighting our amazing telescopes, their operations and scientific discoveries! 🔭🪐🔭 Did you know @NOIRLabAstro operates some of the most advanced telescopes on Earth? 🧵⬇️
A beautiful sea of galaxies #DESimages (credit: Erin Sheldon)
Compiled using data from NSF’s @NOIRLabAstro telescopes, the Siena Galaxy Atlas offers shockingly accurate information on hundreds of thousands large galaxies in our cosmic neighborhood! bit.ly/3TGb4mU 📷: CTIO/NOIRLab/DOE/NSF/AURA/J. Moustakas
Behold the ghostly tendrils of the Vela Supernova Remnant, the cosmic corpse 💀 of a gigantic star that exploded as a supernova ~ 11,000 years ago! This 1.3 gigapixel image is one of the biggest ever made of this object by the Dark Energy Camera🤯 noirlab.edu/public/news/no…
A ghostly-faint galaxy at center (credit: Erin Sheldon). #DESimages
ArXiv was weird today, so you might miss our new @theDESurvey Year 3 Results: arxiv.org/abs/2403.02314 Simulation-based inference using "dark matter" lensing maps, which gives 2x improvement in dark energy parameter precision! But, precision isn't everything... (1/4)
We detected thousands of high-quality SNe Ia in @theDESurvey But how do we identify all of them? This is the question we answered in arxiv.org/abs/2402.18690 We obtained an almost complete sample of 2.3k SNe Ia using only light-curves with SuperNNova classifier!
We’ve released our final analysis of measuring the Baryon Acoustic Oscillation (BAO) signal! Read about the most precise measurement of this kind ever made of when the Universe was just half its age! ifae.es/news/2024/02/2… The full papers can be found at darkenergysurvey.org/des-bao-papers/
Tras casi 20 años del Dark Energy Survey (@theDESurvey) incluyendo planificación, construcción del instrumento, 6 años observaciones y ahora análisis. Empezamos a ver resultados finales. Ayer publicamos los resultados finales del BAO. shorturl.at/rtu39 👇
🔴Una nueva medida de distancias cósmicas en el Dark Energy Survey (@theDESurvey) da pistas sobre la naturaleza de la ✨energía oscura Es la más precisa hasta el momento👏 y fija la escala del universo cuando tenía la mitad de su edad actual🤩 🤓Lee más: bit.ly/3wlVzsn
When it comes to love, sometimes you have to say it with science. ♥️ @symmetrymag has even more physics-themed valentines (and some anti-valentines) to help you show your affection: symmetrymagazine.org/archive?s=vale… 📸 : Sandbox Studio, Chicago with Ana Kova #physics #valentinesday
Our world-class observatories are built in some of the highest and driest locations on Earth🏔️🌌 Read about the charms and challenges that come with in-person observing in our latest NOIRLab Stories post: noirlab.edu/public/blog/in… 📷: NOIRLab/NSF/AURA/P. Horálek
#ICYMI: The Dark Energy Survey collaboration of scientists analyzed an unprecedented sample of more than 1,500 supernovae, placing @theDESurvey supernova survey's strongest constraints on the expansion of the universe! 🔗Read more: news.fnal.gov/2024/01/final-… #DESresult #darkenergy
Painted skies! 🎨🖌️🔭 A spectacular sunset turns the clouds above @cerrotololo a deep red color. Cerro Tololo, located in Chile, is a Program of @NOIRLabAstro and is home to the iconic Víctor M. Blanco 4-meter Telescope. Credit: Babak Tafreshi/NOIRLab/AURA/NSF
Big news! We published the results from the Dark Energy Survey Supernova (SN) Program! We relied on a special type of Supernovae 🎇-the Type 1a– to better understand what is causing our Universe to expand faster and faster🏎.. arxiv.org/abs/2401.02929 arxiv.org/abs/2401.02945 🧵1/8
We did it! Today we released the Dark Energy Survey @theDESurvey supernova cosmology results!!! A massive effort from many people. This has been the prime focus of my research for the last decade, and it was an honour to co-lead this working group. What did we find?.... a 🧵
Niko @NikoSarcevic
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367 Followers 309 Following Astrostatistician at Imperial College London, funded by the Royal Society. Previously at NYU funded by NASA. He/him. Black lives matter.Edinburgh's Royal Obs.. @RoyalObs
4K Followers 74 Following Inspiring the next generation and wider world about our work in astronomy @stfc_matters @ukatc Part of @UKRI_News @PhysAstroEdThe physics of Santa may have been a big mystery as a kid, but there's plenty of mysteries left for grown-up scientists. This article @Gizmodo covers just a few, mentioning many experiments we support, including @ATLASexperiment, @theDESurvey & @VRubinObs: gizmodo.com/what-we-will-n…
The true nature of dark matter is still a mystery, but powerful simulations can help us wrap our minds around it. Dark matter is the theme of this simulation from NSF, @doescience, @theDESurvey, & collaborators in NSF’s latest virtual background: bit.ly/3i9PPXl
Our institutions should be clamoring for experts to be speaking truth to power, for stewards of knowledge to question the structures in which we work and live. This is part of the foundation of growth and progress.
I said I had news, so here it is: I GOT A #SCICOMM JOB!!! I'm so BEYOND EXCITED to share that I'm now the Astronomy Content Strategist for Rubin Observatory (@VRubinObs)!!! I'm going to get paid to talk about astronomy for a living 😭 LET'S STRATEGIZE SOME ASTRONOMY CONTENT!!
A região observada pelo Levantamento da Energia Escura, o DES, busca escapar do disco da nossa galáxia (faixa brilhante) no hemisfério sul para enxergar galáxias distantes e construir um mapa da matéria no universo (que surge na GIF) © @theDESurvey
Une de mes spécialités dans DES 👇🏼Est ce que la relativité générale est ok aux distances cosmologiques? Moi tous les jours à répondre à cette question: 👩💻😓 dans le but qu’un jour: 😃 (Bonus mon talent sur PowerPoint)
How weird is our Universe?👽 We use DES data to test some of the assumptions made in our standard analysis: flat or curved Universe? New neutrino? General Relativity incomplete? Stay tuned 📻 #ThisIsDES Full post here: instagram.com/p/CINFWfmDvbi/ 📸: @CosmoloGirl using DES image
DES a aussi observé 2000 supernovas (de type Ia), explosion très puissante d’étoiles en fin de vie. DES mesure aussi les oscillations baryoniques acoustique: des ondes de son au début de l’univers qui a laissé une trace dans la distribution des galaxies. I know, l’univers est 🤯
DES is not all about weak lensing and galaxy clustering! We also serve supernovae! 💥💥 full post here: instagram.com/p/CIFpMATjr3e/… 📸: Ernesto Guido / Nick Howes / Martino Nicolini
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As well as exquisite galaxy measurements, we need predictions for our complex, nonlinear Universe. Bring in the supercomputers. Or some lightbulbs if you're feeling retro 🖥️💡🖥️💡 #ThisIsDES Full post at: instagram.com/p/CHdzIbIjreV/… 📸: Erik Holmberg
Impresionante trabajo. Enhorabuena!
We wish galaxies would social distance - blending is a major challenge for experiments like ours! #ThisIsDES Read more here: instagram.com/p/CHOfaveDgdz/
Congratulations to KIPAC Director @RisaWechsler, member of the 2020 cohort of @aaas Fellows, "For scientific contributions and leadership of large programs in cosmology and large scale structure to resolve the nature of dark matter and energy."
Très joli alignement (réel ? apparent ?) de galaxies, observé par le projet Dark Energy Survey (@theDESurvey) Crédit : DES/Erin Sheldon & DES/Ross Cawthon Source : instagram.com/p/CHwg79QjsBa/…
Un peu de la même façon que les villes sur Terre sont plus éclairées, les galaxies nous indiquent où est la matière noire dans l'univers.💡🏙️ Pour en tirer des informations cosmologiques, on mesure à quel point les galaxies sont agglomérées ou non 👥👥
Galaxy clustering: the same way city lights indicate where most people live on Earth, galaxies tell us where dark matter is 🌏💡We learn about what our Universe is made of by measuring how clustered galaxies are! #ThisIsDES Full post: instagram.com/p/CHqhYX1D6Dv/ 📸: NASA
#OnThisDay 10 years ago: a "telescope simulator" constructed at @Fermilab to test the Dark Energy Camera for @theDESurvey. You can learn more about the Dark Energy Survey here: darkenergysurvey.org
Thank you @NYUPhysics for the invitation to talk about weak lensing, systematic errors, and @theDESurvey, @VRubinObs, and @NASARoman at the Astrophysics and Relativity seminar today!
Hehehe
We wish galaxies would social distance - blending is a major challenge for experiments like ours! #ThisIsDES Read more here: instagram.com/p/CHOfaveDgdz/
I'm now a part of @theDESurvey! & I HAVE A @Fermilab EMAIL ADDRESS. Growing up near Fermilab, I always DREAMED of working or collaborating there once I was in high school/uni. NOW I'M WORKING WITH THE DARK ENERGY SURVEY! THIS IS INSANELY EXCITING. I can't wait to contribute!