Polycyclic aromatic hydrocarbon feature deficit of starburst galaxies in the AKARI North Ecliptic Pole Deep field
Polycyclic aromatic hydrocarbon feature deficit of starburst galaxies in the AKARI North Ecliptic Pole Deep field
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AKARI 北黄道极深场星暴星系的多环芳烃特征缺失
DOI:
10.1051/0004-6361/201423744
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发表时间:
2014
影响因子:
6.5
通讯作者:
Miyaji,T.
中科院分区:
文献类型:
--
作者:
Murata;K.; Matsuhara;H.; Inami;H.; Wada;T.; Goto;T.; Armus;L.; Pearson;C.; Serjeant;S.;;Miyaji,T.
We study the behaviour of polycyclic aromatic hydrocarbon (PAH) emission in galaxies atz= 0.3–1.4 using 1868 samples from the revised catalogue of AKARI North Ecliptic Pole Deep survey. The continuous filter coverage at 2–24μm makes it possible to measure 8μm luminosity, which is dominated by PAH emission, for galaxies at up toz= 2. We compare the IR8 (≡LIR/L(8)) and 8μm to 4.5μm luminosity ratio (νL(8) /νL(4.5)) with the starburstiness,RSB, defined as excess of specific star-formation rate over that of main-sequence galaxy. All AGN candidates were excluded from our sample using a spectral energy distribution fitting. We findνL(8) /νL(4.5) increases with starburstiness at logRSB< 0.5 and stays constant at higher starburstiness. On the other hand, IR8 is constant at logRSB< 0, while it increases with starburstiness at logRSB> 0. This behaviour is seen in all redshift range of our study. These results indicate that starburst galaxies have deficient PAH emission compared with main-sequence galaxies. We also find that galaxies with extremely highνL(8) /νL(4.5) ratio have only moderate starburstiness. These results suggest that starburst galaxies have compact star-forming regions with intense radiation, which destroys PAHs, and/or have dusty HII regions resulting in a lack of ionising photons.
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DOI:
--
发表时间:
2006
期刊:
Publ.Astro.Soc.Japan 58(in press)
影响因子:
--
作者:
Hideo MATSUHARA;et al.;Hitoshi HANAMI;Toshinobu TAKAGI et al.;Hideo Matsuhara
通讯作者:
Hideo Matsuhara
影响因子:
2.3
作者:
H. Hanami;T. Ishigaki;N. Fujishiro;Kouichiro Nakanishi;T. Miyaji;M. Krumpe;K. Umetsu;Y. Ohyama;H. Shim;M. Im;Hyoung Mok Lee;Myung Gyoon Lee;S. Serjeant;G. White;C. Willmer;T. Goto;S. Oyabu;T. Takagi;T. Wada;H. Matsuhara
通讯作者:
H. Hanami;T. Ishigaki;N. Fujishiro;Kouichiro Nakanishi;T. Miyaji;M. Krumpe;K. Umetsu;Y. Ohyama;H. Shim;M. Im;Hyoung Mok Lee;Myung Gyoon Lee;S. Serjeant;G. White;C. Willmer;T. Goto;S. Oyabu;T. Takagi;T. Wada;H. Matsuhara
影响因子:
4.9
作者:
Diaz-Santos, T.;Armus, L.;Sturm, E.
通讯作者:
Sturm, E.
DOI:
--
发表时间:
2008
期刊:
Publication of Astronomical Society of Japan 60
影响因子:
--
作者:
T. Wada;et al.
通讯作者:
et al.
DOI:
10.1088/2041-8205/754/1/l14
发表时间:
2012-06
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
F. Salmi;E. Daddi;D. Elbaz;M. Sargent;M. Dickinson;A. Renzini;M. Béthermin;D. Le Borgne
通讯作者:
F. Salmi;E. Daddi;D. Elbaz;M. Sargent;M. Dickinson;A. Renzini;M. Béthermin;D. Le Borgne