Dwarf Galaxy NGC 3664 |
 | Minimum credit line: Image courtesy of NRAO/AUI
(for details, see .
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A collection of radio and optical images of NGC 3664 (galaxy on the top) and its dwarf companion NGC 3664A (blob at the bottom).
NGC 3664 is a peculiar barred dwarf spiral, also known
as
Arp 5. Its
optical morphology reveals a single spiral arm emerging from the
end of an optical bar.
Clockwise (from the upper left panel) are the distribution of total atomic hydrogen (HI) (contours and greyscales); the velocity distribution of the HI contoured on a greyscale of the total HI map; color-coded HI velocity field (red indicates gas which is moving away from us, blue indicates gas that is moving towards us); and the total HI map contoured upon an optical image taked from the
Digital Sky Survey.
Investigator(s): E. M. Wilcots and M. K. Prescott This image is available in the following downloadable versions:
- 538 x 652
- 1077 x 1305
- 0 x 0
If you would like to obtain a higher resolution version of this image,
please contact .
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- Up one level for more info on
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Telescope
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ALMA
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Date of Observation
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2002-00-00
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Type of Observation
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Spectral Line Observations
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Wavelength
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21 cm
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Frequency
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1420.4 MHz
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Species
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HI
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Center of Image
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RA: 11:24:25.05, Dec: 03:19:33.80 (J2000)
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Field of View
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0.3000 x 0.3000 degrees
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Technical Caption
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Contour levels on the total HI maps are 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 x 1020 cm-2. The gray scales in the first two panels are in units of 1020 cm-2. The color-coded velocity scale in panel 3 is in units of kilometers per second.
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