This giant HII region, also called Gum 26, contains the deeply embedded infrared cluster [DBS2003] 38
. It lies at the western edge of the immense galactic chimney GSH 277+00+36
There is surprisingly little in the scientific literature concerning this object given that its status as a giant HII region suggests that it is one of the greatest regions of star formation in the Milky Way. You can see it in this MSX infrared image
and in this visible light image
RCW 42 is a giant HII region. [1
RCW 42 is on the western edge of the chimney.[2
"We present new high-resolution H I images of the Galactic chimney GSH 277+00+36. The chimney is at a distance of ~6.5 kpc, is more than 600 pc in diameter, and extends at least 1 kpc above and below the Galactic midplane."[3
Contains the deeply embedded infrared cluster [DBS2003] 38. [4
1. ^ Conti, Peter S. & Crowther, Paul A. (2004). "MSX mid-infrared imaging of
massive star birth environments - II. Giant HII regions", Monthly Notices
of the Royal Astronomical Society, Vol. 355, 899-917.
2. ^ McClure-Griffiths, N. M., Dickey, John M., Gaensler, B. M., et al. (2000).
"Two Large H I Shells in the Outer Galaxy near L=279°", The Astronomical
Journal, Vol. 119, 2828-2842. [2000AJ....119.2828M]
3. ^ McClure-Griffiths, N. M., Dickey, John M., Gaensler, B. M., et al. (2003).
"Loops, Drips, and Walls in the Galactic Chimney GSH 277+00+36", The
Astrophysical Journal, Vol. 594, 833-843. [2003ApJ...594..833M]
4. ^ Dutra, C. M., Bica, E., Soares, J., et al. (2003). "New infrared star
clusters in the southern Milky Way with 2MASS", Astronomy and Astrophysics,
Vol. 400, 533-539. [2003A&A...400..533D]