So, what's the latest with the Super Super Nova. Are the Ligo's focused on that? What's going on?
Well, if the LIGOs were in Science Mode at the time, then any signals from the event are in the data, and the 'focusing' on it comes from the way the data is analyzed. However, the distance to the event was 240 million light years, or about 74 megaparsecs, so if the star was part of a binary system, it would be well out of the LIGO's inspiral range (currently around 15 megaparsecs). And if the star was without a companion, then I don't think there would be any gravitational waves to observe since the mass of the star (after the explosion) is no longer compact and moving in the same direction, but is instead expanding outward in different directions (and some of the mass is no longer mass, but has been converted to energy).
On second thought, I recall reading about certain ways to sift through the data that has the effect of dramatically increasing the range for some types of events. Good question, Stacey... :)
I was reading this morning about that event. It said that theoretically, such an explosion may leave NO remnant, no neutron star or black hole. Matter/anti-matter reactions implicated etc. All sounded very exotic.
What struck me was that if a very large solitary mass, (100 x Sun), was suddenly to vanish, would it generate gravity waves? I can't see how it can fail to generate at least some disturbance in the local gravitational field.
Wave upon wave of demented avengers march cheerfully out of obscurity into the dream.
The caption accompanying the pic: “This is the optical view of the supernova known as SN 2006gy, (upper right) which appears brighter than the nucleus of its host galaxy, NGC 1260 (seen as a dim glow at lower left).�
Click the pic to see the article it's from, along with a nice artist's conception of the explosion...
SUPER SUPER NOVA
)
Well, if the LIGOs were in Science Mode at the time, then any signals from the event are in the data, and the 'focusing' on it comes from the way the data is analyzed. However, the distance to the event was 240 million light years, or about 74 megaparsecs, so if the star was part of a binary system, it would be well out of the LIGO's inspiral range (currently around 15 megaparsecs). And if the star was without a companion, then I don't think there would be any gravitational waves to observe since the mass of the star (after the explosion) is no longer compact and moving in the same direction, but is instead expanding outward in different directions (and some of the mass is no longer mass, but has been converted to energy).
On second thought, I recall reading about certain ways to sift through the data that has the effect of dramatically increasing the range for some types of events. Good question, Stacey... :)
I was reading this morning
)
I was reading this morning about that event. It said that theoretically, such an explosion may leave NO remnant, no neutron star or black hole. Matter/anti-matter reactions implicated etc. All sounded very exotic.
What struck me was that if a very large solitary mass, (100 x Sun), was suddenly to vanish, would it generate gravity waves? I can't see how it can fail to generate at least some disturbance in the local gravitational field.
Wave upon wave of demented avengers march cheerfully out of obscurity into the dream.
Some pretty pictures would
)
Some pretty pictures would help...
Freedom of Speech is a cherished right in every democracy and democratic institution.
RE: Some pretty pictures
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Here's the optical view from Lick Observatory:
The caption accompanying the pic: “This is the optical view of the supernova known as SN 2006gy, (upper right) which appears brighter than the nucleus of its host galaxy, NGC 1260 (seen as a dim glow at lower left).�
Click the pic to see the article it's from, along with a nice artist's conception of the explosion...
THANKS
)
THANKS
Freedom of Speech is a cherished right in every democracy and democratic institution.
It was featured on APOD
)
It was featured on APOD yesterday with a Chandra X-Ray image as well.
Wave upon wave of demented avengers march cheerfully out of obscurity into the dream.
