Here are some pretty pictures taken by COMICS and some brief
explanations of what they are. If you can tell us what they mean, we'd love
to hear from you!!
Massive young stellar objects
COMICS 24.5-μm images of massive young stellar objects
(YSOs). How massive stars (stars weighing more than 8
times the mass of our Sun) form is still shrouded in
mystery (as well as in a lot of gas and dust!).
These new diffraction-limited images of massive YSOs,
in addition to being some of the first high resolution
images of these objects taken at the longest infrared
wavelength observable from ground, revealed how warm dust
grains are distributed around these complex objects, and,
as highlighted in
this week in A&A
column, "represent a step forward in solving this
(high-mass star formation) problem". These images are
also chosen as the front cover of
A&A volume 494, No.1 (January IV 2009). See
de Wit et al. (A&A, 2009, 494, 157) for details.
||A false three-colour (blue = 8.8 μm, green = 11.7 μm, red =
12.4 μm) image of the centre of our Milky Way galaxy. The image size
is about 40" x 30". North is up and east is to the left (more or
||A slit-viewer image of the Galactic centre. The long-slit can be
seen running across horizontally near the centre of the image. Filled
cyan circles indicate the positions at which the spectra shown below
are extracted from.
||A low-resolution (R ~ 250) N-band spectrum
of IRS 1 (left circle).
||Same as above but at the right circle.
Some of these images were presented at the Galactic center workshop
2002 by Dr. Yoko Okada.
Post-AGB star IRAS 22272+5432
||Post-AGB star IRAS 22272+5432 imaged at 8.8, 10.5, and
||Long-slit placed diagonally across the star and N-band
spectra at various positions.
||It was also imaged at 18.5, 20.8, and 24.5 μm.
These images were presented at the
Workshop on mass-losing pulsating stars and their circumstellar matter
by Dr. Takashi Miyata, in a
paper entitled Sub-Arcsecond Mid-Infrared Observations of C-rich
||A medium-resolution (R ~ 2500) N-band 2-D spectrum of the starburst
galaxy M 82. This image was presented at a Subaru Telescope users
meeting in March 2001 by Dr. Hirokazu
Kataza. The bright wiggly line near the righthand edge of the image is
the 12.8-μm [NeII] emission line and its shape represents the rotation
curve of the galaxy (see also
Achtermann & Lacy, 1995, ApJ, 439, 163).
© 2000-2003 Subaru Telescope, NAOJ. All rights reserved.