Dwarf Galaxy NGC 3664

https://www.nrao.edu/archives/plugins/Dropbox/files/Wilcot2_hi.jpg

Description

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.
Contour levels on the total HI maps are 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 x 10<sup>20</sup> cm<sup>-2</sup>. The gray scales in the first two panels are in units of 10<sup>20</sup> cm<sup>-2</sup>. The color-coded velocity scale in panel 3 is in units of kilometers per second.

Creator

Legacy Astronomical Images

Rights

NRAO/AUI/NSF does not hold full copyright for this image. Contact the archivist for details.

Type

Legacy Astronomical Image

Object Name

NGC3664

Investigators

E. M. Wilcots, M. K. Prescott

Telescope

Very Large Array (VLA)
DSS

Observation Date

2002-00-00

Type of Observation

spectral line

Wavelength

21 cm

Frequency

1420.4 MHz

Species

HI

Center of Image

RA 11:24:25.050, Dec: 3:19:33.800 (J2000)

Field of View

0.300000 x 0.300000 degrees

Link to NRAO Newsletter article

Notes

Contact the archivist for a high resolution tif of this image.

Series

Galaxies Series

Unit

Dwarf Unit

Citation

Legacy Astronomical Images, “Dwarf Galaxy NGC 3664,” NRAO Archives, accessed December 3, 2021, https://www.nrao.edu/archives/items/show/33537.