Dust and PAHs in X-ray plasma of elliptical galaxies

Hidehiro Kaneda; Takashi Onaka; Toyoaki Suzuki; Tatsuya Mori; Mitsuyoshi Yamagishi; Toru Kondo; Akiko Yasuda

doi:10.1017/S1743921312009192

Dust and PAHs in X-ray plasma of elliptical galaxies

Hidehiro Kaneda, Takashi Onaka, Toyoaki Suzuki, Tatsuya Mori, Mitsuyoshi Yamagishi, Toru Kondo, Akiko Yasuda

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Many elliptical galaxies possess an appreciable amount of X-ray-emitting hot plasma, providing a harsh interstellar environment for the survival of dust grains and polycyclic aromatic hydrocarbons (PAHs). Despite such a hostile environment, it has been found that a significant fraction of X-ray elliptical galaxies contain a considerable amount of dust, which cannot be explained solely from replenishment by old stars. Some of them even show the presence of PAHs. We present the results of AKARI and Spitzer observations of dust and PAHs in X-ray elliptical galaxies. We investigate their possible origins and discuss the implications of their presence for the evolution of elliptical galaxies.

Original language	English
Title of host publication	The Spectral Energy Distribution of Galaxies
Editors	Richard J. Tuffs, Cristina C. Popescu
Pages	254-258
Number of pages	5
Edition	S284
DOIs	https://doi.org/10.1017/S1743921312009192
Publication status	Published - 2011 Sep
Externally published	Yes

Publication series

Name	Proceedings of the International Astronomical Union
Number	S284
Volume	7
ISSN (Print)	1743-9213
ISSN (Electronic)	1743-9221

Keywords

ISM: dust
cD-galaxies: ISM
extinction-infrared: galaxies-galaxies: elliptical and lenticular

ASJC Scopus subject areas

Medicine (miscellaneous)
Astronomy and Astrophysics
Nutrition and Dietetics
Public Health, Environmental and Occupational Health
Space and Planetary Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1017/S1743921312009192

Cite this

Kaneda, H., Onaka, T., Suzuki, T., Mori, T., Yamagishi, M., Kondo, T., & Yasuda, A. (2011). Dust and PAHs in X-ray plasma of elliptical galaxies. In R. J. Tuffs, & C. C. Popescu (Eds.), The Spectral Energy Distribution of Galaxies (S284 ed., pp. 254-258). (Proceedings of the International Astronomical Union; Vol. 7, No. S284). https://doi.org/10.1017/S1743921312009192

Dust and PAHs in X-ray plasma of elliptical galaxies. / Kaneda, Hidehiro; Onaka, Takashi; Suzuki, Toyoaki; Mori, Tatsuya; Yamagishi, Mitsuyoshi; Kondo, Toru; Yasuda, Akiko.

The Spectral Energy Distribution of Galaxies. ed. / Richard J. Tuffs; Cristina C. Popescu. S284. ed. 2011. p. 254-258 (Proceedings of the International Astronomical Union; Vol. 7, No. S284).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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abstract = "Many elliptical galaxies possess an appreciable amount of X-ray-emitting hot plasma, providing a harsh interstellar environment for the survival of dust grains and polycyclic aromatic hydrocarbons (PAHs). Despite such a hostile environment, it has been found that a significant fraction of X-ray elliptical galaxies contain a considerable amount of dust, which cannot be explained solely from replenishment by old stars. Some of them even show the presence of PAHs. We present the results of AKARI and Spitzer observations of dust and PAHs in X-ray elliptical galaxies. We investigate their possible origins and discuss the implications of their presence for the evolution of elliptical galaxies.",

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T1 - Dust and PAHs in X-ray plasma of elliptical galaxies

AU - Kaneda, Hidehiro

AU - Onaka, Takashi

AU - Suzuki, Toyoaki

AU - Mori, Tatsuya

AU - Yamagishi, Mitsuyoshi

AU - Kondo, Toru

AU - Yasuda, Akiko

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N2 - Many elliptical galaxies possess an appreciable amount of X-ray-emitting hot plasma, providing a harsh interstellar environment for the survival of dust grains and polycyclic aromatic hydrocarbons (PAHs). Despite such a hostile environment, it has been found that a significant fraction of X-ray elliptical galaxies contain a considerable amount of dust, which cannot be explained solely from replenishment by old stars. Some of them even show the presence of PAHs. We present the results of AKARI and Spitzer observations of dust and PAHs in X-ray elliptical galaxies. We investigate their possible origins and discuss the implications of their presence for the evolution of elliptical galaxies.

AB - Many elliptical galaxies possess an appreciable amount of X-ray-emitting hot plasma, providing a harsh interstellar environment for the survival of dust grains and polycyclic aromatic hydrocarbons (PAHs). Despite such a hostile environment, it has been found that a significant fraction of X-ray elliptical galaxies contain a considerable amount of dust, which cannot be explained solely from replenishment by old stars. Some of them even show the presence of PAHs. We present the results of AKARI and Spitzer observations of dust and PAHs in X-ray elliptical galaxies. We investigate their possible origins and discuss the implications of their presence for the evolution of elliptical galaxies.

KW - ISM: dust

KW - cD-galaxies: ISM

KW - extinction-infrared: galaxies-galaxies: elliptical and lenticular

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Dust and PAHs in X-ray plasma of elliptical galaxies

Abstract

Publication series

Keywords

ASJC Scopus subject areas

UN SDGs

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