Hola amigos: A VUELO DE UN QUINDE EL BLOG., la Agencia Espacial NASA, nos informa sobre la captación de una espectacular vista de la Galaxia Cúmulo SDSS J1038+4849, tal como se ha captado parece que está sonriendo. para entender el caso digamos : Usted puede hacer sus dos ojos de color naranja y blanco botón nariz. En el caso de esta "cara feliz", los dos ojos son galaxias muy brillantes y las líneas de la sonrisa engañosas son realmente arcos causados por un efecto conocido como lentes gravitacionales fuertes.
Más....Los cúmulos de galaxias son las estructuras más masivas del Universo y ejercen una poderosa atracción gravitatoria que deformar el espacio-tiempo alrededor de ellos y actúan como lentes cósmicas que pueden magnificar, distorsionar y doblar la luz detrás de ellos. Este fenómeno, que es crucial para muchos de los descubrimientos del Hubble, se puede explicar por la teoría de la relatividad general de Einstein.
Hubble Sees A Smiling Lens
In the center of this image, taken with the NASA/ESA Hubble Space Telescope,
is the galaxy cluster SDSS J1038+4849 — and it seems to be smiling.
You can make out its two orange eyes and white button nose. In the case of
this “happy face”, the two eyes are very bright galaxies and the misleading
smile lines are actually arcs caused by an effect known as strong gravitational
lensing.
Galaxy clusters are the most massive structures in the Universe and exert
such a powerful gravitational pull that they warp the spacetime around them and
act as cosmic lenses which can magnify, distort and bend the light behind them.
This phenomenon, crucial to many of Hubble’s discoveries, can be explained by
Einstein’s theory of general relativity.
In this special case of gravitational lensing, a ring — known as an Einstein
Ring — is produced from this bending of light, a consequence of the exact and
symmetrical alignment of the source, lens and observer and resulting in the
ring-like structure we see here.
Hubble has provided astronomers with the tools to probe these massive
galaxies and model their lensing effects, allowing us to peer further into the
early Universe than ever before. This object was studied by Hubble’s Wide Field
and Planetary Camera 2 (WFPC2) and Wide Field Camera 3 (WFC3) as part of a
survey of strong lenses.
A version of this image was entered into the Hubble’s Hidden Treasures image
processing competition by contestant Judy Schmidt.
Image Credit: NASA/ESA
Caption: ESA
Caption: ESA
NASA
Guillermo Gonzalo Sánchez Achutegui
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