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Dark Energy Survey @TheDESurvey
14h
#DESimages (NGC 7064, credit: Robert Gruendl) https://t.co/JxO62snSYK

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Dark Energy Survey @TheDESurvey
Mar 26
#DESimages (IC 5096, credit: Robert Gruendl) https://t.co/WcZGWBPvnI

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Dark Energy Survey @TheDESurvey
Mar 24
RT @theDESurvey:#DESimages (credit: Erin Sheldon) The central object possibly just underwent a disruptive collision between two ga… https://t.co/D7U2fsZ8rp

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Dark Energy Survey @TheDESurvey
Mar 23
#DESimages (credit: Erin Sheldon) The central object possibly just underwent a disruptive collision between two ga… https://t.co/D7U2fsZ8rp

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Dark Energy Survey @TheDESurvey
Mar 21
RT @PennSAS:Need a break from this planet for a bit? A new study led by @pennphys researchers shows more than 300 trans-Neptuni… https://t.co/aUj1f8xOzL

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The Dark Energy Survey
14 hours ago
#DESimages (NGC 7064, credit: Robert Gruendl) ... See MoreSee Less
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The Dark Energy Survey
6 days ago
#DESimages (IC 5096, credit: Robert Gruendl) ... See MoreSee Less
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The Dark Energy Survey
1 week ago
#DESimages (credit: Erin Sheldon)

The central object possibly just underwent a disruptive collision between two galaxies. Two cores can be seen, and there is still some spiral arm structure, though it is now incomplete, possibly disrupted by the collision. Some of the specks of blue to the bottom left of the central object may have been formally part of a spiral galaxy but ejected by this collision. Blue galaxies have bright, young stars, indicating they are still actively forming stars. We typically see this more often in large spiral galaxies rather than isolated regions like this. ... See MoreSee Less
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The Dark Energy Survey
2 weeks ago
#DESimages (NGC 7582 group, credit: Erin Sheldon) ... See MoreSee Less
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The Dark Energy Survey
2 weeks ago
#DESimages (NGC 6902, credit: Erin Sheldon) ... 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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