Infrared Spectrum of Brown Dwarf TWA-5B
This infrared spectrum was obtained on 16 April 2000 with the ISAAC multi-mode instrument at the 8.2-m VLT/ANTU telescope in the 1.4 - 1.8 µm wavelength range (the H-band), with spectral resolution 500. It corresponds to a total exposure time of 20 min and was made through a 0.6 arcsec wide slit. Lines of Magnesium (Mg), Carbon Monoxide (CO), and the Hydroxyl radical (OH) are identified. The general shape of the spectrum is typical of that of a late M-type dwarf star. For comparison, the infrared spectrum of an M9-type star is shown. The spectra are indeed quite similar.
Credit:
ESO
About the Image
| Id: | eso0023c |
| Type: | Chart |
| Release date: | 21 July 2000 |
| Related releases: | eso0023 |
| Size: | 1030 x 691 px |
About the Object
| Name: | TWA-5 B |
| Type: | • Milky Way : Star : Type : Brown Dwarf • X - Stars • X - Illustrations |
Colours & filters
| Band | Wavelength | Telescope |
| Infrared H |
1.6 μm | Very Large Telescope ISAAC |
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