Orion Images

A bunch of images of the Orion nebula that I have used in talks. Clicking on the thumbnail images will take you a larger version.

Some of these I have made myself and some I have taken from the web. I have tried to include all relevant credits and attributions. If you feel I am misusing anyone's copyrighted material please let me know.

Contents:

Large-scale views of Orion

The Orion bar in the infrared

The Orion bar from space

The snakes

Large-scale views of Orion

These are all based on other people's images, although I have modified all except the 2MASS image.

The Orion A molecular cloud mapped in the line ¹³CO J=1-0 ( Plume et al. 2000, ApJ 539, L133). This shows the cool (20-100 K), dense, molecular gas from which the star cluster has formed.

Near-infrared JHK image showing the young star cluster and the emission from the gas in the surrounding nebula (University of Massachusetts 2MASS survey)

Combination of the above

Plus optical image of ionized nebula (© 2004 Russell Croman) in the lines [S II] 6716,6731 Å (red), Hα (green), and [O III] 4959,5007 Å (blue).

The Orion bar in the infrared

These are all based on images I have taken from published papers or observatory press-releases, which I have aligned and composited using the gimp.

Near-infrared JHK image (ESO, VLT)

Blue

J-band - Paβ, starlight

Green

H-band - Brackett series, starlight

Red

K-band - He I, Brγ, embedded stars, H₂

Plus H₂ 2.12 μm (NAOJ, Subaru)

Plus H₂ 2.12 μm ( Walmsley et al. 2000, AA, 364, 301)

Plus [C I] 0.96 μm ( Walmsley et al. 2000, AA, 364, 301)

The Orion bar from space

These images were created by me based on data provided by Bob O'Dell.

HST WFPC2 images: low ionization lines [N II]-[S II]-[O I]

HST WFPC2 images: scattered continuum plus high-ionization lines cont-Hα-[O III]

The snakes

Decorations that I used for my talk "Snakes in the Orion Zoo: Dynamics of a Photoionized Blister". These are my original works (knocked out in a couple of minutes using inkscape).

Coiled snake

Snake rampant