Dust Emission from Stephan's Quintet

Details Dust Emission from Stephan's Quintet Dust Emission from Stephan's Quintet

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1240...85n&link_type=abstract

HUNTING FOR THE DARK: THE HIDDEN SIDE OF GALAXY FORMATION. Edited by Victor P. Debattista and Cristina C. Popescu AIP Conferen

Astronomy and Astrophysics

Astronomy

Star Formation, X-Ray Sources (Astronomical), Spiral Galaxies, Galactic Centre, Intergalactic Matter, Star Formation, X-Ray Sources, X-Ray Bursts, Spiral Galaxies, Galactic Center, Bar, Circumnuclear Matter, And Bulge, Intergalactic Matter, Quasar Absorption And Emission-Line Systems, Lyman Forest

Scientific paper

We present new infrared images of the prototype of galaxy compact groups, Stephan's Quintet (SQ), taken with Spitzer/MIPS at 24, 70 and 160 μm, and compare these with existing images at X-ray, UV/optical, radio wavelengths as well as with archival Spitzer/IRAC imaging at 8 μm. The new images reveal an extended (on scales of up to ca. 70 kpc) component of FIR emission which is roughly correlated with diffuse soft X-ray emission arising from the so-called SHOCK and HALO regions. A further interesting aspect of this study is the displacement of the main star formation sites from the central galaxy disks to the peripheries of the galaxies or to the intergalactic medium (IGM).

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