J/A+A/549/A70 NGC 4214 multiband images (Hermelo+, 2013)
The dust SED of dwarf galaxies. I. The case of NGC 4214.
Hermelo I., Lisenfeld U., Relano M., Tuffs R.J., Popescu C.C., Groves B.
<Astron. Astrophys., 549, A70 (2013)>
=2013A&A...549A..70H 2013A&A...549A..70H
ADC_Keywords: Galaxies, photometry
Keywords: dust, extinction - galaxies: individual: NGC 4214 - galaxies: dwarf -
galaxies: ISM - galaxies: star formation - submillimeter: galaxies
Abstract:
High-resolution data from Spitzer, Herschel, and Planck allow us to
probe the entire spectral energy distribution (SED) of morphologically
separated components of the dust emission from nearby galaxies and
allow a more detailed comparison between data and models.
We wish to establish the physical origin of dust heating and emission
based on radiation transfer models, that self-consistently connect the
emission components from diffuse dust and the dust in massive star
forming regions.
Description:
NGC 4214 is a nearby dwarf galaxy with a large set of ancillary data,
ranging from the ultraviolet (UV) to radio, including maps from
Spitzer and Herschel and detections from Planck. We mapped this galaxy
with MAMBO at 1.2mm at the IRAM 30m telescope. We extracted separate
dust emission components for the HII regions (plus their associated
PDRs on pc scales) and for the diffuse dust (on kpc scales). We
analysed the full UV to FIR/submm SED of the galaxy using a radiation
transfer model that self-consistently treats the dust emission from
diffuse and star forming (SF) complexes components, considering the
illumination of diffuse dust both by the distributed stellar
populations and by escaping light from the HII regions. While
maintaining consistency within the framework of this model, we
additionally used a model that provides a detailed description of the
dust emission from the HII regions and their surrounding PDRs on pc
scales. Thanks to the large amount of available data and many previous
studies for NGC 4214, very few free parameters remained in the model
fitting process.
Objects:
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RA (2000) DE Designation(s)
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12 15 39.17 +36 19 36.8 NGC 4214 = UGC 7278
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 61 14 List of FITS images
fits/* . 14 Individual FITS images
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 9 F9.5 deg RAdeg Right Ascension of center (J2000)
10- 18 F9.5 deg DEdeg Declination of center (J2000)
20 I1 arcsec/pix scale Scale of the image
22- 24 I3 pix Nx Number of pixels along X-axis
25 A1 --- --- [x]
26- 28 I3 pix Ny Number of pixels along Y-axis
30- 37 A8 --- Filt Filter (1)
39- 61 A23 --- FileName Name of FITS file if subdirectory fits
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Note (1): Filters as follows:
FUV = GALEX far-ultraviolet
NUV = GALEX near-ultraviolet
MAMBO = IRAM30m/MAMBO 1.2mm
IRAC3 = Spitzer/IRAC 3.6um
IRAC8 = Spitzer/IRAC 8.0um
MIPS24 = Spitzer/MIPS 24um
MIPS70 = Spitzer/MIPS 70um
MIPS160 = Spitzer/MIPS 160um
PACS70 = Herschel/PACS 70um
PACS100 = Herschel/PACS 100um
PACS160 = Herschel/PACS 160um
SPIRE250 = Herschel/SPIRE 250um
SPIRE350 = Herschel/SPIRE 350um
SPIRE500 = Herschel/SPIRE 500um
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Acknowledgements:
Israel Hermelo, israelhermelo(at)ugr.es
(End) Patricia Vannier [CDS] 09-May-2013