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The identification of dust heating mechanisms in nearby galaxies using Herschel 160/250 and 250/350 $m surface brightness ratios
- Source :
- Monthly Notices of the Royal Astronomical Society, Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2015, 448 (1), pp.135--167. ⟨10.1093/mnras/stu1841⟩, Monthly Notices of the Royal Astronomical Society, 2015, 448 (1), pp.135--167. ⟨10.1093/mnras/stu1841⟩, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
- Publication Year :
- 2015
- Publisher :
- Oxford University Press, 2015.
-
Abstract
- We examined variations in the 160/250 and 250/350 micron surface brightness ratios within 24 nearby (=250 microns (and sometimes at >=160 microns) originates from dust heated by the older stellar population. In the rest of the sample, either the results are indeterminate or both of these stellar populations may contribute equally to the global dust heating. The observed variations in dust heating mechanisms does not necessarily match what has been predicted by dust emission and radiative transfer models, which could lead to overestimated dust temperatures, underestimated dust masses, false detections of variability in dust emissivity, and inaccurate star formation rate measurements.<br />Accepted for publication in MNRAS
- Subjects :
- galaxies: spiral
Stellar population
H-ALPHA
INFRARED-EMISSION
FOS: Physical sciences
Astrophysics
SPECTRAL ENERGY-DISTRIBUTIONS
Astrophysics::Cosmology and Extragalactic Astrophysics
01 natural sciences
galaxies [infrared]
infrared: galaxies
RADIATIVE-TRANSFER
0103 physical sciences
VIRGO CLUSTER SURVEY
Radiative transfer
STAR-FORMING GALAXIES
Astrophysics::Solar and Stellar Astrophysics
Surface brightness
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
QB
Physics
Luminous infrared galaxy
Spiral galaxy
ISM [galaxies]
010308 nuclear & particles physics
Star formation
Astronomy
Astronomy and Astrophysics
Astrophysics - Astrophysics of Galaxies
Galaxy
spiral [galaxies]
Physics and Astronomy
Space and Planetary Science
Astrophysics of Galaxies (astro-ph.GA)
MULTIBAND IMAGING PHOTOMETER
DIGITAL SKY SURVEY
H-alpha
Astrophysics::Earth and Planetary Astrophysics
FORMATION RATE INDICATORS
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
SPIRAL GALAXIES
galaxies: ISM
Subjects
Details
- Language :
- English
- ISSN :
- 13652966 and 00358711
- Database :
- OpenAIRE
- Journal :
- Monthly Notices of the Royal Astronomical Society, Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2015, 448 (1), pp.135--167. ⟨10.1093/mnras/stu1841⟩, Monthly Notices of the Royal Astronomical Society, 2015, 448 (1), pp.135--167. ⟨10.1093/mnras/stu1841⟩, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
- Accession number :
- edsair.doi.dedup.....392446a2826e6120e05b9c19163006fa
- Full Text :
- https://doi.org/10.1093/mnras/stu1841⟩