The Polycyclic Aromatic Hydrocarbon Emission Deficit in Low‐Metallicity Galaxies—ASpitzerView

2006 ◽  
Vol 641 (2) ◽  
pp. 795-800 ◽  
Author(s):  
B. O’Halloran ◽  
S. Satyapal ◽  
R. P. Dudik
Keyword(s):  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Polycyclic Aromatic ◽  
Hydrocarbon Emission ◽  
Low Metallicity ◽  
Polycyclic Aromatic Hydrocarbon Emission

scholarly journals POLYCYCLIC AROMATIC HYDROCARBON EMISSION WITHIN Lyα BLOBS

2011 ◽  
Vol 728 (1) ◽  
pp. 59 ◽  
Author(s):  
James W. Colbert ◽  
Claudia Scarlata ◽  
Harry Teplitz ◽  
Paul Francis ◽  
Povilas Palunas ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Polycyclic Aromatic ◽  
Hydrocarbon Emission ◽  
Polycyclic Aromatic Hydrocarbon Emission

scholarly journals Mid‐Infrared and Visible Photometry of Galaxies: Anomalously Low Polycyclic Aromatic Hydrocarbon Emission from Low‐Luminosity Galaxies

2005 ◽  
Vol 624 (1) ◽  
pp. 162-167 ◽  
Author(s):  
David W. Hogg ◽  
Christy A. Tremonti ◽  
Michael R. Blanton ◽  
Douglas P. Finkbeiner ◽  
Nikhil Padmanabhan ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Mid Infrared ◽  
Polycyclic Aromatic ◽  
Hydrocarbon Emission ◽  
Polycyclic Aromatic Hydrocarbon Emission

scholarly journals STRONG POLYCYCLIC AROMATIC HYDROCARBON EMISSION FROMz≈ 2 ULIRGs

2009 ◽  
Vol 700 (2) ◽  
pp. 1190-1204 ◽  
Author(s):  
Vandana Desai ◽  
B. T. Soifer ◽  
Arjun Dey ◽  
Emeric Le Floc'h ◽  
Lee Armus ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Polycyclic Aromatic ◽  
Hydrocarbon Emission ◽  
Polycyclic Aromatic Hydrocarbon Emission

scholarly journals The Spitzer spectroscopic survey of the Small Magellanic Cloud: polycyclic aromatic hydrocarbon emission from SMC star-forming regions

2008 ◽  
Vol 4 (S256) ◽  
pp. 160-165
Author(s):  
Karin M. Sandstrom ◽  
Alberto D. Bolatto ◽  
Snežana Stanimirović ◽  
J. D. T. Smith ◽  
Jacco Th. van Loon ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Physical State ◽  
Magellanic Cloud ◽  
Small Magellanic Cloud ◽  
Star Forming ◽  
Star Forming Regions ◽  
Polycyclic Aromatic ◽  
Hydrocarbon Emission ◽  
Low Metallicity

AbstractBecause of its proximity, the Small Magellanic Cloud provides a unique opportunity to map the polycyclic aromatic hydrocarbon (PAH) emission from photo-dissociation regions (PDRs) in a low-metallicity (12 + log(O/H) ~ 8) galaxy at high spatial resolution in order to learn about their abundance and physical state. We present mid-IR spectral mapping observations of star-forming regions in the Small Magellanic Cloud obtained as part of the Spitzer Spectroscopic Survey of the SMC (S4MC) project. These observations allow us to map the distribution of PAH emission in these regions and the measure the variation of PAH band strengths with local physical conditions. In these proceedings we discuss preliminary results on the physical state of the PAHs, in particular their ionization fraction.

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