HI + Optical Image of the Integral Sign Galaxy (UGC 3697)

https://www.nrao.edu/archives/plugins/Dropbox/files/ugc3697fullcolor_hi.jpg

Description

Composite image of the "Integral Sign'' galaxy, UGC 3697. This edge-on spiral galaxy displays an unusually pronounced warp in both its stellar and gaseous disks. The neutral Hydrogen gas, represented in blue, is overlaid on an optical image of the stellar component of the galaxy. Unlike in normal spiral galaxies, the brightest concentration of neutral Hydrogen is not found near the center of UGC 3697 but along its western edge, where the VLA has detected a bright, extended region of emission in the midplane. In addition, plumes of gas extend to considerable height above and below the disk of the galaxy.
VLA observation: 12 hours in C configuration with a spectral resolution of 5.2 km/s. WIYN observations: 2 x 12.5 minutes with Harris B and R filters.

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

UGC3697

Investigators

L. D. Matthews (CfA), J. M. Uson (NRAO)

Telescope

Very Large Array (VLA)
WIYN

Observation Date

2000-05-28

Type of Observation

spectral line

Wavelength

21 cm

Frequency

1420.4 MHz

Species

HI

Center of Image

RA 7:11:22.500, Dec: 71:50:10.000 (J2000)

Field of View

0.164167 x 0.164167 degrees

Link to NRAO Newsletter article

Notes

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

Series

Galaxies Series

Unit

Spiral Unit

Citation

Legacy Astronomical Images, “HI + Optical Image of the Integral Sign Galaxy (UGC 3697),” NRAO Archives, accessed December 3, 2021, https://www.nrao.edu/archives/items/show/33565.