File:DG Tau from Hubble & Chandra (38821902454).png
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English: Star formation is very interesting to me because I think they are incredibly beautiful. Something about witnessing a moment of stellar genesis...it makes me feel calm. Sometimes I sit around and try to imagine the dust coalescing from all angles to form a hot disk that eventually ignites the stellar crucible while these fantastic jets blow off the poles... it's all said and done in a cosmic instant.
Space Telescope Imaging Spectrograph (STIS) has been doing a good bit of spectroscopy for this one as astronomers have tried to characterize its jets. I'm content to just look at it and daydream while the astrophysicists do the astrophysics. Hubble data are presented in grayscale while Chandra are indigo and magenta. The jets are both visible in x-rays, but the rear jet seems to be completely unseen in visible light. I presume that either the x-rays are not greatly attenuated or scattered by the gas and dust, but the visible light is. Still, it would have been nice to see both the jets, but the rear jets for these and other objects get obscured all the time. There is an article at the Chandra website about this object: chandra.harvard.edu/photo/2008/dgtau/ It is also fun to take a look at various datasets from over the years and watch the jets evolve, because they are moving so fast that we can also see it in just a few years. I thought of creating a color image using some older WFPC2 data, but it didn't seem all that helpful. Hubble data were from the following proposal: STIS Pure Parallel Imaging Program: Cycle 12 Chandra data are a summation of the following seven observation IDs: 4487, 6409, 7246, 7247, 11009, 11010, 11011 Not knowing much about x-ray astronomy yet myself, I used the same energy range as illustrated in this paper to try to isolate the jets from the noise and the star: www.aanda.org/articles/aa/abs/2008/06/aa8141-07/aa8141-07... Grayscale: Hubble STIS MIRVIS Violet/Magenta: Chandra ACIS .6-1.7 keV North is NOT up. It is 42.94° counter-clockwise from up. |
| Date | Taken on 6 January 2018, 01:12:26 |
| Source | DG Tau from Hubble & Chandra |
| Author | geckzilla |
| Flickr sets | all astronomy; Chandra Processing; Hubble Processing |
| Flickr tags | visible; hst; ttauri; chandra; xray; jets; youngstellarobject; starformation; hubble; mirvis; stis; dust |
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This image was originally posted to Flickr by geckzilla at https://flickr.com/photos/54209675@N00/38821902454. It was reviewed on 1 March 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 23:44, 1 March 2024 | | 982 × 980 (1.24 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://live.staticflickr.com/4633/38821902454_b76d90226f_o.png via Commons:Spacemedia |
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