The DENIS gallery
The images shown in this page have been obtained by combining 3 individual DENIS images simultaneously observed in the 3 DENIS wavebands.
The following color conventions have been used:
The optical images were retrieved using the Aladin Previewer.
Antennae galaxies:
Galaxies NGC4038 and NGC4039 are colliding, and matter ejected in this process forms long, thin antennae-like arcs visible in the optical.
In the DENIS view, the cores of the two galaxies appear very bright. There are also some bright spots corresponding to young star clusters (previously detected by the HST), resulting from star formation triggered by the collision.
In the Galactic plane (l=20 deg)
When looking exactly through the Galactic plane (here at Galactic longitude approximately 20 deg), many stars are encountered.
But in the optical, due to interstellar absorption, most of these stars can't be seen. With DENIS near-infrared wavebands, we can seek deeper into the plane, especially in the Ks band, where many stars appear (in red).
IC 2469
The spiral arms and bulge of this Sc galaxy are well visible on the DENIS image.
IC 3104
This faint galaxy located in the lower right of the picture has a rather irregular shape.
Part of the Chamaeleon Complex
There are many regions of interest in this picture. The reflection nebula surrounding a young bright star in the lower left of this image appears blue in the DENIS false colors, because it emits more in the I band than in J and Ks.
The large region with almost no stars visible in the optical is a dense molecular cloud, which blocks light from stars lying there. DENIS near-infrared wavebands, especially the Ks one, uncover some of these stars, which appear redder on the image.
One star in the upper part of the image is considerably brighter in the DENIS image than in the optical. This is a M5 giant named Glass E star. It has a B magnitude of 13, and a K magnitude of 3.6 !
The images shown in this page have been obtained by combining 3 individual DENIS images simultaneously observed in the 3 DENIS wavebands.
The following color conventions have been used:
- Blue: I band;
- Green: J band;
- Red: Ks band.
The optical images were retrieved using the Aladin Previewer.
Antennae galaxies:
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DENIS image Click on the image to enlarge it. |
SERC-J (blue) image [STScI] |
Galaxies NGC4038 and NGC4039 are colliding, and matter ejected in this process forms long, thin antennae-like arcs visible in the optical.
In the DENIS view, the cores of the two galaxies appear very bright. There are also some bright spots corresponding to young star clusters (previously detected by the HST), resulting from star formation triggered by the collision.
In the Galactic plane (l=20 deg)
|
|
|
DENIS image Click on the image to enlarge it. |
SERC-J (blue) image [STScI] |
When looking exactly through the Galactic plane (here at Galactic longitude approximately 20 deg), many stars are encountered.
But in the optical, due to interstellar absorption, most of these stars can't be seen. With DENIS near-infrared wavebands, we can seek deeper into the plane, especially in the Ks band, where many stars appear (in red).
IC 2469
|
|
|
DENIS image Click on the image to enlarge it. |
SERC-J (blue) image [STScI] |
The spiral arms and bulge of this Sc galaxy are well visible on the DENIS image.
IC 3104
|
|
|
DENIS image Click on the image to enlarge it. |
SERC-J (blue) image [STScI] |
This faint galaxy located in the lower right of the picture has a rather irregular shape.
Part of the Chamaeleon Complex
|
|
|
DENIS image Click on the image to enlarge it. |
SERC-J (blue) image [STScI] |
There are many regions of interest in this picture. The reflection nebula surrounding a young bright star in the lower left of this image appears blue in the DENIS false colors, because it emits more in the I band than in J and Ks.
The large region with almost no stars visible in the optical is a dense molecular cloud, which blocks light from stars lying there. DENIS near-infrared wavebands, especially the Ks one, uncover some of these stars, which appear redder on the image.
One star in the upper part of the image is considerably brighter in the DENIS image than in the optical. This is a M5 giant named Glass E star. It has a B magnitude of 13, and a K magnitude of 3.6 !