File:First extra-galactic SiO maser (eso9618b).tiff
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editDescriptionFirst extra-galactic SiO maser (eso9618b).tiff |
English: This is a small part of the microwave spectrum of the maser star IRAS 04553-6825 in the Large Magellanic Cloud (LMC), a satellite galaxy to the Milky Way.The region shown is centered at a frequency of about 86 GHz (wavelength about 3 mm), where SiO molecules in the atmosphere of this very large star produce a strong emission by the maser effect.The abscissa shows the velocity, as indicated by the Doppler shift of the SiO emission; the ordinate shows the relative intensity. The line at the centre has a measured velocity of about 275 km/sec, very near the mean velocity of the LMC. There is therefore no doubt that this star is located in the LMC.The observation was made with a new state-of-art millimetric receiver at the 15-metre Swedish-ESO Submillimetre Telescope (SEST) at the La Silla Observatory. The signal represents 26 hours of observation. |
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Date | 6 March 1996 (upload date) | ||
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Author | ESO | ||
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Image title | This is a small part of the microwave spectrum of the maser star IRAS 04553-6825 in the Large Magellanic Cloud (LMC), a satellite galaxy to the Milky Way. The region shown is centered at a frequency of about 86 GHz (wavelength about 3 mm), where SiO molecules in the atmosphere of this very large star produce a strong emission by the maser effect. The abscissa shows the velocity, as indicated by the Doppler shift of the SiO emission; the ordinate shows the relative intensity. The line at the centre has a measured velocity of about 275 km/sec, very near the mean velocity of the LMC. There is therefore no doubt that this star is located in the LMC. The observation was made with a new state-of-art millimetric receiver at the 15-metre Swedish-ESO Submillimetre Telescope (SEST) at the La Silla Observatory. The signal represents 26 hours of observation. |
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Width | 938 px |
Height | 694 px |
Bits per component | 8 |
Compression scheme | LZW |
Pixel composition | Black and white (Black is 0) |
Orientation | Normal |
Number of components | 1 |
Number of rows per strip | 8 |
Data arrangement | chunky format |
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