New image of Galactic Centre |
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New image of Galactic Centre |
 Nov 10 2009, 05:10 PM
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#1
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 The Poet Dude  Group: Moderator Posts: 5546 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60  |
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Nov 10 2009, 05:24 PM
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#2
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 Senior Member Group: Members Posts: 2563 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
QUOTE (Stu @ Nov 10 2009, 06:10 PM)  Wow... just wow...!!! You're supposed to be the Poet, Stu, I was expecting more  Well, the picture speaks by itself! It's nice leaving in the Milky Way, isn't it? -------------------- |
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Nov 12 2009, 06:19 AM
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#3
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Member Group: Members Posts: 592 Joined: 26-August 05 Member No.: 476 |
What is the source of the prominent light blue diffuse globular cluster-like object in the composite image? I don't see it in the Spitzer IR, Hubber near-IR, or Chandra X-ray components, and did not see a description in the text.
But, yes, wow! |
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Nov 12 2009, 06:55 AM
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#4
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 Senior Member Group: Moderator Posts: 6481 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
IIRC, there is a globular cluster along the LOS from our viewpoint near the galactic center (but not inside the Galaxy proper, of course).
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Nov 12 2009, 08:04 AM
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#5
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 Member Group: Members Posts: 158 Joined: 4-July 05 From: West Chester, PA, USA Member No.: 429 |
Could somebody please identify the actual Galaxy center in the picture? That is, the approximate location of the central black hole.
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Nov 13 2009, 06:44 AM
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#6
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Junior Member Group: Members Posts: 72 Joined: 20-April 05 Member No.: 272 |
This is the annotated version of the image -- the center of the galaxy is the black hole Sagittarius A.
http://hubblesite.org/newscenter/archive/r...mat/xlarge_web/ |
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Nov 13 2009, 01:04 PM
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#7
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 Member Group: Members Posts: 275 Joined: 11-December 07 From: Dar es Salaam, Tanzania Member No.: 3978 |
So much detail...
 The Sagittarius A region is absolutely stunning at close up. -------------------- |
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Nov 19 2009, 07:25 AM
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#8
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 Senior Member Group: Moderator Posts: 2606 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Here is a carefully coordinated view of a zoom of SgrA* in near IR (Hubble) and X-ray (Chandra) wavelengths:
There are definite differences in the patterns between the two images. The Chandra image was taken from the Chandra website, while the Hubble image was from a presentation by Susan Stolovy for the Galaxy Center image release. The separate images (Spitzer [R], Hubble [Y], and Chanrda [B]) used to make the "Panel A" composite were loaded into Photoshop. Then the "Panel A" composite was loaded in to help coordinate everyone up. The high res image of SgrA* from the Chandra site was loaded in, and rotated (CCW ca. 45 degrees) and resized to fit the Chandra panel. The Hubble image was placed in the image, resized, and it's outer boundary used to set the crop for the Chandra hi-resolution image. [BTW, the leftmost blue blob in Panel A doesn't show up in the other images, it turns out the Hubble nearIR image was the lowest common denominator. So the other images were cropped to fit the Hubble image. The blue blob is visible in the full Chandra Galaxy Center Region image - it is binary star system E1713.1-2843]. -Mike -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Nov 19 2009, 10:09 PM
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#9
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Junior Member Group: Members Posts: 72 Joined: 20-April 05 Member No.: 272 |
Very nice -- just shows how active (and deadly) the region is.
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Nov 22 2009, 04:35 PM
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#10
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Senior Member Group: Moderator Posts: 2606 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Putting it all into context:
(The M101 image is on the wall opposite the new Galactic Center image at the North Carolina Museum of Natural Sciences.) -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Nov 24 2009, 12:12 AM
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#11
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Junior Member Group: Members Posts: 72 Joined: 20-April 05 Member No.: 272 |
I still think the observations of the orbits of the stars tracking around the black hole at the center of the Milky Way is one of the most fascinating results from the whole history of astronomy. The vast majority of the observable Universe beyond our solar system is essentially unchanged over the span of a single lifetime in terms of movement anyway, yet here we have managed to build up a picture of multiple stars whizzing around the black hole in just a few short years.
http://www.astro.ucla.edu/~ghezgroup/gc/pi...erImage08.shtml There is a link to the animation at the bottom of this page. |
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