Hubble observes first kilonova

On 17 August 2017, the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Virgo Interferometerboth detected gravitational waves from the collision between two neutron stars. Within 12 hours observatories had identified the source of the event within the lenticular galaxy NGC 4993, shown in this image gathered with the NASA/ESA Hubble Space Telescope. The associated stellar flare, a kilonova, is clearly visible in the Hubble observations. This is the first time the optical counterpart of a gravitational wave event was observed.

Hubble observed the kilonova gradually fading over the course of six days, as shown in these observations taken in between 22 and 28 August (insets).

Crediti:

NASA and ESA. Acknowledgment: N. Tanvir (U. Leicester), A. Levan (U. Warwick), and A. Fruchter and O. Fox (STScI)

A proposito dell'immagine

Identificazione:eso1733n
Tipo:Collage
Data di pubblicazione:Lunedì 16 Ottobre 2017 16:00
Notizie relative:eso1733
Dimensione:1365 x 1458 px

A proposito delll'oggetto

Tipo:Local Universe : Star : Evolutionary Stage : Neutron Star
Local Universe : Galaxy : Type : Elliptical
Categoria:Stars

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Colori e filtri

BandaLunghezza d'ondaTelescopio
Ottico
V
606 nmHubble Space Telescope
ACS
Infrarosso
J
1.1 μmHubble Space Telescope
WFC3
Infrarosso
H
1.6 μmHubble Space Telescope
WFC3
Infrarosso
H
1.6 μmHubble Space Telescope
WFC3
Infrarosso
H
1.6 μmHubble Space Telescope
WFC3
Infrarosso
H
1.6 μmHubble Space Telescope
WFC3

 

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