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Dark Energy Survey @TheDESurvey
Jun 23
🗺️🌌 https://t.co/Apw1mUKPQ6

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Dark Energy Survey @TheDESurvey
Jun 23
Illustration: Chihway Chang Text: Niall Jeffrey See and read about our weak lensing "mass map", the largest of its… https://t.co/PWT3wC0TRL

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Dark Energy Survey @TheDESurvey
Jun 23
We have created a map on the sky of something invisible — dark matter! Even though we can't see dark matter, its gr… https://t.co/1dkChM9ZC9

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Dark Energy Survey @TheDESurvey
Jun 22
DEScientist @phbernardinelli led the discovery of this new minor planet. Check out more below. https://t.co/0jnfzy4mKB

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Dark Energy Survey @TheDESurvey
Jun 22
While much of our science focuses on distant galaxies, we also study our own solar system! Check out this discovery… https://t.co/atHUmG9Dy9

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The Dark Energy Survey

2 days ago

We have created a map on the sky of something invisible — dark matter! Even though we can't see dark matter, its gravity bends light and makes galaxies appear to make a specific pattern across the sky. #DarkBitesIllustration: Chihway ChangText: Niall JeffreySee and read about our weak lensing "mass map", the largest of its kind, here: arxiv.org/pdf/2105.13539.pdf ... See MoreSee Less

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The Dark Energy Survey

7 days ago

Every galaxy on the sky lives in a larger Dark Matter halo, like an invisible house -- galaxy-galaxy lensing reveals the shape of the house. #darkbitesIllustration/Text: Chihway ChangThe paper describing our galaxy-galaxy lensing results is here: arxiv.org/abs/2105.13541 ... See MoreSee Less

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The Dark Energy Survey

1 week ago

The way galaxies cluster together tells us about how structures in the Universe form and evolve, but to see them we have to look through Earth’s atmosphere and the stars in our own galaxy. We have to correct for contaminations before we can learn about distant galaxies. #DarkBitesIllustration: Jessie MuirText: Martin Rodríguez-MonroyThe paper describing how we correct for these contaminations is here: arxiv.org/abs/2105.13540 ... See MoreSee Less

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The Dark Energy Survey

2 weeks ago

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The Dark Energy Survey

2 weeks ago

Airplane pilots use flight simulators to train because it lets them plan routes and test techniques without the risks of flying a real plane. Similarly, before using real measurements to infer the properties of the Universe, we analyze simulated DES data. These simulated analyses let us test-drive our calculations and code: we know what went into making the simulation, so we can check that we recover the right answer! #DarkBitesIllustration & Text: Jessie Muir This paper details how we use simulated analyses to define and validate our modeling pipeline: arxiv.org/abs/2105.13547 ... See MoreSee Less

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News

Observações com a câmera DECam revelam a natureza de evento de ondas gravitacionais

October 16, 2017 1:52 pm

Cientistas usando a câmera do levantamento Dark Energy Survey (DES) capturaram imagens do resultado de uma colisão entre estrelas de nêutrons, evento que produziu a detecção de onda gravitacional mais recente (GW170817) pelos observatórios LIGO e Virgo. Uma equipe de cientistas usando a Dark Energy Camera (DECam), a principal ferramenta de observação do Dark Energy Survey, estão entre os primeiros a observar as consequências de um surto de ondas gravitacional detectado recentemente, registrando imagens da primeira explosão confirmada como consequência da fusão de duas estrelas de nêutrons. Esse violento processo de fusão, ocorrido há 130 milhões de anos em uma galáxia próxima à nossa (NGC 4993), é a fonte das ondas gravitacionais detectadas pelo Observatório Interferométrico de Ondas Gravitacionais (LIGO) e Interferômetro Virgo em 17 de agosto.

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