Media Information

 
 
 
Collection:
NASA Spitzer Space Telescope Collection
Title:
Star Formation in the DR21 Region
Description:
Observations from NASA's Spitzer Space Telescope reveal a turbulent nest of giant newborn stars too shrouded in dust to be seen with visible light. This movie highlights this stellar nursery, called DR21, and illustrates what a human eye might see if it could be re-tuned to see different parts of the electromagnetic spectrum. It shows the area surrounding DR21 in shifting wavelengths of light, beginning with the visible and ending with the new Spitzer infrared observations. The view changes in hue from red to blue, then fades from sight, as new infrared features appear in false-colors. The first false-color infrared view is from the near-infrared Two Micron All Sky Survey (2MASS) at wavelengths of 1.3 to 2.2 microns. The second false-color view is from Spitzer's mid-infared InfraRed Array Camera (IRAC) at wavelengths of 3.6 to 8 microns.

The picture at the start of the animation encompasses the entire region observed by the Spitzer Space Telescope. The faint emission from hot gas, which appears red initially in the visible view, shifts toward blue and out of sight as the near-infrared features start to emerge. A multitude of new stars shifts into view in the near-infrared view. Then, several faint, dark reddish smudges appear throughout this field, hinting at the presence of more deeply buried nebula. Finally as the movie shifts to longer Spitzer wavelengths, these denser embedded dust clouds burst fully into view, revealing the more extensive network of newborn stars that was utterly absent in visible light.

The shift from visible to infrared light is then repeated for a zoomed-in view of the central DR21 complex. With this magnification, the stellar nursery of massive stars is much clearer. In the final Spitzer view, red filaments trace the presence of complex hydrocarbon molecules. The green jet of gas at the bottom of the region reveals an outflow of material from a massive star over 100,000 times as bright as our own Sun.
Release Date:
2004/04/13
Press Release:
Invisible Giants Exposed in New Spitzer Image [ http://www.spitzer.…]
Release Credit:
NASA/JPL-Caltech/R. Hurt (SSC-Caltech)
Image Credit:
NASA/JPL-Caltech/A. Marston (ESTEC/ESA) & A. Noriega-Crespo (SSC/Caltech)
Object name:
DR21
Object type:
Star formation region in dark cloud
Position (J2000):
*RA: *20h39m0.90s *Dec: *42d19m57.00s
Distance:
2000 parsecs (6200 light-years)
Constellation:
Cygnus (The Swan)
Wavelength:
IRAC: 3.6 (blue), 4.5 (green), 5.8 (orange), 8.0 (red) microns; MIPS: 24 microns
Image scale:
IRAC: 61 x 37 arcmin; MIPS: 104 x 32.6 arcmin (rectangular dimensions)
Observers:
IRAC
Tony Marston, Principal Investigator (ESA/ESTEC)
Lori Allen (Smithsonian Astrophysical Observatory)
Ted Bergin (U. Michigan)
Sean Carey (Spitzer Science Center)
Gary Melnick (Smithsonian Astrophysical Observatory)
Alberto Noriega-Crespo (Spitzer Science Center)
Judy Pipher (University of Rochester)
Bill Reach (Spitzer Science Center)
Jeonghee Rho (Spitzer Science Center)
Howard Smith (Smithsonian Astrophysical Observatory)
Dan Watson (University of Rochester)

MIPS
Alberto Noriega-Crespo, Principal Investigator (Spitzer Science Center)
Eiichi Egami (Steward Observatory, University of Arizona)
William B. Latter (Spitzer Science Center)
James Muzerolle (Steward Observatory, University of Arizona)
Deborah Padgett (Spitzer Science Center)
Luisa Rebull (Spitzer Science Center)
Jeonghee Rho (Spitzer Science Center)
George Rieke (Steward Observatory, University of Arizona)
Karl Stapelfeldt (Jet Propulsion Laboratory)
Instrument:
IRAC MIPS
Exposure Date:
IRAC: October 11, 2003 & November 22, 2003; MIPS: November 18, 2003
Exposure Time:
IRAC: 5 seconds per position; MIPS: 84 sec (total)
Orientation:
IRAC: North is 88 deg CW from up; MIPS: North is 88 deg CW from up (22 deg CW from up for separate download)
facet_what:
Spitzer Space Telescope
facet_what:
Visible Light
facet_what:
TRACE
facet_what:
Sun
facet_what:
MIPS
facet_what:
Cygnus
facet_what:
DR21 Region
facet_what:
Infrared Array Camera (IRAC)
facet_where:
Arizona
facet_where:
Michigan
facet_where:
Jet Propulsion Laboratory
facet_where:
Jet Propulsion Laboratory (JPL)
facet_where:
Washington, D.C.
facet_where:
Stennis Space Center (SSC)
facet_when:
October 11, 2003
facet_when:
November 22, 2003
facet_when:
November 18, 2003
facet_when_year:
2003
Image #:
ssc2004-06v1
original url:
UID:
SPD-SPITZ-ssc2004-06 v1

Star Formation in the DR21 Region