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![[Star Formation and Dust in the Galactic Plane]](ssc2006-20a_small.jpg) Star Formation and Dust in the Galactic Plane
Credit: NASA/JPL-Caltech/S. Carey(SSC/Caltech)
NASA/Spitzer Image Release:
Where Galactic Snakes Live (October 27, 2006)
![[A GLIMPSE of the Milky Way]](sig05-025_small.jpg) A GLIMPSE of the Milky Way
Credit: NASA/JPL-Caltech/E.Churchwell (Univ. of Wisconsin)
NASA/Spitzer Image Release on GLIMPSE (l=326-335 deg) (December 12, 2005)
A New Star Cluster
Credit: NASA/JPL-Caltech/E. Mercer (Boston University)
Spitzer Exposes Our Galaxy's Deepest Secrets (December 12, 2005)
Illustration courtesy: NASA/JPL-Caltech/R. Hurt (SSC/Caltech)
GLIMPSE reveals a new look for the Milky Way (August 16, 2005)
![[Image of Black Widow Nebulae]](sig05-020a_small.jpg) Black Widow Nebula Hiding in the Dust
Credit: NASA/JPL-Caltech/E.Churchwell (Univ. of Wisconsin)
NASA/Spitzer Image Release on the Black Widow Nebula (October 28, 2005)
![[Image of RCW 79]](th-sig05-001.jpg) Star Forming "Bubble" RCW 79
Credit: NASA/JPL-Caltech/E.Churchwell (Univ. of Wisconsin)
NASA/Spitzer Image Release on RCW 79 (April 13, 2005)
![[Image of GLIMPSE-C01]](ssc2004-16a_200.jpg)
Globular Cluster GLIMPSE-C01 Credit: NASA/JPL-Caltech/H. Kobulnicky (Univ. of Wyoming)
NASA/Spitzer Press Release on Globular Cluster GLIMPSE-C01 (October 12, 2004 )
![[Spitzer/IRAC Image of RCW49]](ssc2004-08a_200.jpg)
Spitzer/IRAC Image of RCW49
Credit: NASA/JPL-Caltech/E. Churchwell (University of Wisconsin)
NASA/Spitzer Press Release on RCW49 (May 27, 2004)
Picture Archives
GLIMPSE: Spitzer IRAC Galactic Plane Survey
GLIMPSEII: Imaging the Central +-10 Degrees of the Galactic Plane with IRAC
GLIMPSE3D: The Vertical Stellar and Interstellar Structure of the Inner Galaxy
**All Observations Completed**
GLIMPSE - the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire - is a fully
sampled, confusion limited, 4-band near- to mid-infrared survey of the inner two-thirds of the
Galactic disk with a spatial resolution of ~2". The
Infrared
Array Camera (IRAC)
imaged 220 square degrees at wavelengths centered on 3.6, 4.5, 5.8, and 8.0 microns
in the Galactic longitude range 10 deg to 65 deg on both sides of the Galactic center and
in Galactic latitude +/- 1 deg.
The area covered by GLIMPSE contains most of the star formation activity in the Galaxy
and ~70% of the molecular gas in the Galaxy. The inner cutoff at |l| = 10 deg permits
adequate sampling of both ends of the purported ~3 kpc central bar and possibly some of
the nuclear bulge stellar population. We expect to determine the asymmetry of the bar
(brighter at l>0 deg) with high accuracy. The outer cutoff at |l| = 65 deg includes all of
the 5 kpc molecular ring, the Sagittarius spiral arm tangent, and the Norma spiral arm
tangent. The Galactic center region is not included because of its extreme background
brightness and high confusion limits.
The GLIMPSE Survey will provide a comprehensive view of the stellar dust content
in the inner Galaxy. The broad scope of this unbiased survey will provide a global
understanding that studies of narrowly-defined, selected regions cannot. GLIMPSE will
enable a wide range of stellar and interstellar science. The GLIMPSE team will focus on two
important scientific questions:
(1) What is the structure of the inner Galaxy, including the disk, molecular ring, number and
location of spiral arms, and central bar as traced by the spatial distribution of stars and IR-
bright star formation regions?
(2) What are the statistics and physics of star formation as a function of mass, stage of
evolution, and location in the Milky Way?
The team provides the following products: a high reliability GLIMPSE Point Source
Catalog (GLMC), a GLIMPSE Point Source Archive (GLMA; ~5 sigma), and a Mosaiced
Image Atlas of the entire surveyed area at all four IRAC bands, all of which will be made available
via the Spitzer Data Archive.
In addition, a set of web modeling tools will be provided that will permit
users to analyze and interpret Spitzer and other IR data.
The
IPAC data archive can cross-reference
the GLIMPSE catalogs with other databases in its archive such as
2MASS and
MSX.
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