From Manu Garcia: ” the light is still resonating three years after a starburst, v838 mon”

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The last image from the hubble space telescope at NASA / Esa Estrela V838 Monocerotis (V838 Mon) reveals dramatic changes in the lighting cloud structures surrounding dusty. The effect, called light echo has been revealing, dust pattern never seen before since the star lit up suddenly for several weeks in early 2002.

The Illumination of the interstellar dust comes from the red supergiant star in the center of the image, which issued a pulse of light three years ago, something similar to the launch of a lightbulb in a dark room. The dust surrounding v838 mon may have been expelled from the star during a previous explosion, similar to the event of 2002.

The Echo of light through space is similar to the sound echoing through the air. As the light of the stellar explosion continues to spread outwards, they light up different parts of the dust, the same way that an echo sound bounces of objects around the fountain, and later objects farther away from the source. Eventually, when the light from the back of the nebula starts to arrive, the echo of the light will give the illusion of contract, and finally disappear.

V838 Mon is located about 20.000 light-years from earth in the direction of the constellation monoceros, placing the star on the outer edge of our galaxy of the milky way. The Hubble Telescope has visualized v838 mon and his light echo several times since the outbreak of the star. Every time the hubble gazes at the event, they look different thin sections of dust when the pulse of enlightenment is continuing to spread away from the star at the speed of light, producing a constantly changing appearance. During the outbreak whose light came to earth in 2002, the star normally weak suddenly brightened up, becoming 600.000 times brighter than our sun.

Progress of the star and dusty structure around it.

The last image from the hubble space telescope of the Star V838 Monocerotis (V838 Mon) reveals dramatic changes in the lighting cloud structures surrounding dusty. The effect, called light echo has been revealing, dust pattern never seen before since the star lit up suddenly for several weeks in early 2002.

The new image of v838 mon, taken in October 2004 with Hubble’s advanced camera for surveys, prepared from images obtained through filters that insulate light blue, green and infrared. These images have been combined to produce a full color image that approximates the true colors of the echo of the light and the red star very near downtown.

Photo Credit:
NASA, esa, and the team of Hubble’s inheritance (Stsci / Aura)

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