Part Ison comet seems to have survived, according to NASA - The País.com (Spain)

Ison comet, which has kept the attention around the world for their uncertain future as it approaches the Sun continues to surprise scientists. The space solar telescope SDO , with noted yesterday that NASA over comet borderline star, he saw no sign of the object emerging after the flyby and NASA gave him as “broken and evaporated” . However, in subsequent images taken with another space telescope, SOHO (NASA and the European Space Agency, ESA), a slight stain was seen in the area just where they were expected to emerged the Ison if he had survived.

Some experts raised that could be a cloud scattering remnants of fierce encounter with the star comet particles. But with the passing hours, has not dispersed the cloud and now NASA experts report that “comet material is seen across the sun, although having seen during its closest approach.” The open question is whether that cloud remains just about the comet or some fragment of its remaining core. The expert analysis of the U.S. space agency is following the comet “suggest that, at least, there is a small core intact.”

Along with the SDO and SOHO , NASA has also been watching the phenomenon with other space observatory. Solar Terrestrial Relations Observatory

According

Sky & Telescope , the Ison emerged from its passage by the Sun “as a headless ghost,” referring to the cloud dispersed away from the star, and “is expected to disperse. ” Maybe it’s broken, but have been survived relatively large fragments that may end up vaporized and last a certain time, they said some experts to view images.

“It’s quite possible you are watching the trail of scattered stuff Ison and emitting small particles,” said Sky & Telescope Carey Lisse, comet specialist at Johns Hopkins ( USA), following the passage of the comet with the Sun “Another option, less likely, is that the comet has broken into large pieces, like the comet Shoemaker-Levy 9 on Jupiter before rushing (in 1994), and they are shedding dust. The range of dust after perihelion [closest approach of the comet to the Sun] we see is what we would expect from dust that is under pressure from solar radiation and gravitational forces while doing spinning in a U-shape on the Sun. ”

SOHO data now seem to be more optimistic even with a cometary nucleus even across the sky, however small.

On the fate of the comet, a ball of dirty ice about four miles across, in your solar quote scientists had raised three possibilities: to burst and evaporate by solar radiation and the gravitational force of the star, which survive the encounter and then would look in a few days in the night sky, or were to fragment. The Ison came to 1.24 million kilometers from the Sun

“Over the year that researchers have been observing the Ison (and especially during its final approach to the Sun) and has won the comet unexpectedly lost luster,” says NASA. “Such brightness changes usually occur in response to material boiling out of the comet, and do different materials at different temperatures, so that give clues about the composition of the comet.”