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June 5, 2009 News and Updates

A 2x1 degree image of the Galactic Center and the surrounding Central Molecular Zone, as seen by the VLA 20 cm (purple, tracing H II regions), BOLOCAM 1.1 mm (orange, highlighting cold dust), and Spitzer/GLIMPSE (cyan, showing stars and PAH emission). Credit: A. Ginsburg (U. Colorado - Boulder) et al., BGPS Team, GLIMPSE II Team
IRSA and the SSC announce that IRSA is now serving the latest data releases from three Spitzer legacy surveys: Local Volume Legacy (LVL) Survey, the Taurus survey, and GLIMPSE 3D. In addition, we announce the release of the BOLOCAM Galactic Plane Survey (GPS) data.
The LVL consists of 258 galaxies that are being mapped at 3.6, 4.5, 5.8, 8.0, 24, 70, and 160 microns. Ancillary images in H-alpha, broad- band R, and two UV continuum bands are also available for some galaxies. The new release, DR3, includes high level science products from IRAC and MIPS for 31 galaxies.
The Taurus survey ("Taurus 2: Finishing the Spitzer Map of the Taurus Molecular Clouds") has mapped about 44 sq. degrees within the Taurus star-forming region using IRAC and MIPS. The new update includes serving the DR3 image mosaics and the September 2008 catalog, as well as offering image cutouts.
The "Galactic Legacy Infrared Midplane Survey Extraordinaire" (GLIMPSE) is a fully sampled, confusion-limited infrared survey of 2/3 of the inner Galactic disk using IRAC. The GLIMPSE 3D component extends the survey in strips of latitude above and below the Galactic plane. The current incremental release extends the data availability from 50% to 80%.
BOLOCAM is a large-format (115 pixel) bolometric camera at the Caltech Submillimeter Observatory. The BOLOCAM Galactic Plane Survey mapped 150 sq. deg. in the galactic plane at a wavelength of 1.1mm. The catalog, created using a custom algorithm, includes both compact sources and filamentary structure.

April 20, 2009 Featured Image

Known throughout the world under various names -- Subaru to the Japanese, Matarii ("Little Eyes") to the natives of Tonga, Athur-ai ("The Stars of Hathor") to the ancient Egyptians -- the Pleiades (as it was known to the ancient Greeks) is a cluster of naked-eye stars located in the constellation Taurus, the Bull. This cluster is now known to be a collection of relatively young stars, their births having occurred only 100 to 125 million years ago. The brightest stars shown here are those visible to the naked eye on a clear winter's night and represent hot blue giants much more massive than our Sun; the faintest members of the cluster are faint red dwarfs only a tenth of the Sun's mass. The blue, green, and red channels of this three-color image were made from B-, R-, and I-band images, respectively, from the Digitized Sky Survey. Image courtesy of Inseok Song (U. Georgia) and created with Montage v3.0 using this script.