Understanding the spectral energy distributions of the galactic star forming regions IRAS 18314-0720, 18355-0532 and 18316-0602

1999 ◽  
Vol 20 (1-2) ◽  
pp. 1-22 ◽  
Author(s):  
Bhaswati Mookerjea ◽  
S. K. Ghosh
Keyword(s):  
Spectral Energy ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Star Forming ◽  
Star Forming Regions

scholarly journals Infrared Spectral Energy Distributions ofz∼ 0.7 Star‐forming Galaxies

2007 ◽  
Vol 670 (1) ◽  
pp. 301-312 ◽  
Author(s):  
Xian Zhong Zheng ◽  
Herve Dole ◽  
Eric F. Bell ◽  
Emeric Le Floc’h ◽  
George H. Rieke ◽  
...  
Keyword(s):  
Spectral Energy ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Star Forming ◽  
Infrared Spectral

scholarly journals Which attenuation curves for star-forming galaxies?

2019 ◽  
Vol 15 (S341) ◽  
pp. 70-73
Author(s):  
Véronique Buat ◽  
David Corre ◽  
Médéric Boquien ◽  
Katarzyna Małek
Keyword(s):  
Radiative Transfer ◽  
Spectral Energy ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Star Forming ◽  
Radiative Transfer Models ◽  
Attenuation Law ◽  
Dust Attenuation ◽  
Attenuation Laws ◽  
Transfer Models

AbstractDust attenuation shapes the spectral energy distributions of galaxies and any modelling and fitting procedure of their spectral energy distributions must account for this process. We present results of two recent works dedicated at measuring the dust attenuation curves in star forming galaxies at redshift from 0.5 to 3, by fitting continuum (photometric) and line (spectroscopic) measurements simultaneously with CIGALE using variable attenuation laws based on flexible recipes. Both studies conclude to a large variety of effective attenuation laws with an attenuation law flattening when the obscuration increases. An extra attenuation is found for nebular lines. The comparison with radiative transfer models implies a flattening of the attenuation law up to near infrared wavelengths, which is well reproduced with a power-laws recipe inspired by the Charlot and Fall recipe. Here we propose a global modification of the Calzetti attenuation law to better reproduce the results of radiative transfer models.

scholarly journals What Can Observations of Young Binaries Tell Us about Binary Formation?

2001 ◽  
Vol 200 ◽  
pp. 346-360 ◽  
Author(s):  
Cathie J. Clarke
Keyword(s):  
Main Sequence ◽  
Binary Star ◽  
Spectral Energy ◽  
Strong Impact ◽  
Energy Distributions ◽  
Star Forming ◽  
Star Forming Regions ◽  
Binary Formation ◽  
Future Task ◽  
Cloud Core

In this paper I discuss three areas in which observational data is likely to have a strong impact on theoretical ideas about binary star formation: the collation of binary statistics for different primary masses, the acquisition of spectral energy distributions for individual components within pre-main sequence binaries and the use of binary statistics to constrain the mix of star forming regions that must combine to form the field. Theoretical and observational work is ongoing in each of these areas. It is suggested that for observers an important future task is to remeasure the wide binary population among local field stars, whilst for theorists a problem yet to be addressed is how the mass of a molecular cloud core affects its binary fragmentation properties.

scholarly journals The Contribution of AGNs and Star‐forming Galaxies to the Mid‐Infrared as Revealed by Their Spectral Energy Distributions

2008 ◽  
Vol 684 (1) ◽  
pp. 136-152 ◽  
Author(s):  
C. Gruppioni ◽  
F. Pozzi ◽  
M. Polletta ◽  
G. Zamorani ◽  
F. La Franca ◽  
...  
Keyword(s):  
Spectral Energy ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Mid Infrared ◽  
Star Forming

Panchromatic characterisation of accreting black holes in dusty star-forming galaxies

2019 ◽  
Vol 15 (S356) ◽  
pp. 26-26
Author(s):  
Gabriela Calistro Rivera
Keyword(s):  
Galactic Nuclei ◽  
Spectral Energy ◽  
X Rays ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Nuclear Activity ◽  
Star Forming ◽  
History Of ◽  
Fully Bayesian ◽  
The Universe

AbstractAlthough AGN do not typically dominate the bolometric emission of dusty star forming galaxies, large AGN fractions (sometimes > 40%) have been observed in various sub-millimeter surveys. These diagnostics have been however mostly based on X-ray counterpart selections and a complete multiwavength census of the fraction of AGN hosts is needed. I will present new advances in the modelling of panchromatic spectral energy distributions (SEDs) of active galactic nuclei (AGN), based on our publicly available code AGNfitter (Calistro-Rivera et al.2016). AGNfitter implements a fully Bayesian Markov Chain Monte Carlo method to fit the spectral energy distributions of AGNs pushing the wavelengths frontiers from the radio to the X-rays. I will present a recent application of AGNfitter on dusty star forming galaxies in the ALESS submillimeter survey to obtain an unbiased multiwavelength characterisation of the nuclear activity buried in dusty star formation. Our method reveals a significantly larger contribution of AGN activity to the emission in these galaxies than previously observed based on X-rays diagnostics. Our method represents a unique tool to potentially characterise an unbiased accretion history of the Universe when applied to larger populations of star-forming galaxies.

scholarly journals Star forming galaxies in the AKARI deep field south: identifications and spectral energy distributions

2010 ◽  
Vol 514 ◽  
pp. A11 ◽  
Author(s):  
K. Małek ◽  
A. Pollo ◽  
T. T. Takeuchi ◽  
P. Bienias ◽  
M. Shirahata ◽  
...  
Keyword(s):  
Spectral Energy ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Star Forming

scholarly journals Dust in FIR-bright ADF-S galaxies

2014 ◽  
Vol 10 (S309) ◽  
pp. 325-325
Author(s):  
K. Małek ◽  
A. Pollo ◽  
T. T. Takeuchi ◽  
V. Buat ◽  
D. Burgarella ◽  
...  
Keyword(s):  
Far Infrared ◽  
Spectral Energy ◽  
Infrared Galaxies ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Star Forming ◽  
Luminous Infrared Galaxies

AbstractMultiwavelength Spectral Energy Distributions (SEDs) of far-infrared (FIR) galaxies detected in the AKARI South Ecliptic Poles Survey (ADF-S) allow to trace differences between [Ultra]-Luminous Infrared Galaxies ([U]LIRGS) and other types of star-forming galaxies (SF).

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