Unbiased large spectroscopic surveys of galaxies selected by SPICA using dust bands
| Autor: | Armus, L., Baes, M., Charmandaris, V., Czerny, B., Efstathiou, A., Fernandez-Ontiveros, J. A., Ferrara, A., Gonzalez-Alfonso, E., Griffin, M., Gruppioni, C., Hatziminaoglou, E., Pozzi, F., Scott, D., Smith, J. -D. T., Spinoglio, L., Suzuki, T., van, der Tak F., Vaccari, M., Vignali, C., Wang, L., Kaneda, Hidehiro, Ishihara, Daisuke, Oyabu, Shinki, Yamagishi, Mitsuyoshi, Wada, Takehiko, Imanishi, Masatoshi, Kohno, Kotaro, Kwon, Jungmi, Nakagawa, Takao, Onaka, Takashi |
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| Přispěvatelé: | Astronomy, Kaneda, H., Ishihara, D., Oyabu, S., Yamagishi, M., Wada, T., Armus, L., Baes, M., Charmandaris, V., Czerny, B., Efstathiou, A., Fernández-Ontiveros, J. A., Ferrara, A., González-Alfonso, E., Griffin, M., Gruppioni, C., Hatziminaoglou, E., Imanishi, M., Kohno, K., Kwon, J., Nakagawa, T., Onaka, T., Pozzi, F., Scott, D., Smith, J. -. D. T., Spinoglio, L., Suzuki, T., van der Tak, F., Vaccari, M., Vignali, C., Wang, L. |
| Rok vydání: | 2017 |
| Předmět: |
Active galactic nucleus
galaxies: active FOS: Physical sciences Astrophysics Spica Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences infrared: galaxies 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics 010303 astronomy & astrophysics QC Astrophysics::Galaxy Astrophysics Physics Luminous infrared galaxy infrared: ISM 010308 nuclear & particles physics Star formation galaxies: active galaxies: evolution galaxies: star formation infrared: galaxies infrared: ISM methods: observational Astronomy and Astrophysics Astrophysics - Astrophysics of Galaxies Galaxy Redshift Accretion (astrophysics) Interstellar medium Space and Planetary Science galaxies: star formation Astrophysics of Galaxies (astro-ph.GA) Astrophysics::Earth and Planetary Astrophysics methods: observational galaxies: evolution |
| Zdroj: | Publications of the Astronomical Society of Australia, 34:e059. Cambridge University Press |
| ISSN: | 1323-3580 |
| DOI: | 10.48550/arxiv.1710.07103 |
| Popis: | The mid-infrared (IR) range contains many spectral features associated with large molecules and dust grains such as polycyclic aromatic hydrocarbons (PAHs) and silicates. These are usually very strong compared to fine-structure gas lines, and thus valuable in studying the spectral properties of faint distant galaxies. In this paper, we evaluate the capability of low-resolution mid-IR spectroscopic surveys of galaxies that could be performed by SPICA. The surveys are designed to address the question how star formation and black hole accretion activities evolved over cosmic time through spectral diagnostics of the physical conditions of the interstellar/circumnuclear media in galaxies. On the basis of results obtained with Herschel far-IR photometric surveys of distant galaxies and Spitzer and AKARI near- to mid-IR spectroscopic observations of nearby galaxies, we estimate the numbers of the galaxies at redshift z > 0.5, which are expected to be detected in the PAH features or dust continuum by a wide (10 deg^2) or deep (1 deg^2) blind survey, both for a given observation time of 600 hours. As by-products of the wide blind survey, we also expect to detect debris disks, through the mid-IR excess above the photospheric emission of nearby main-sequence stars, and we estimate their number. We demonstrate that the SPICA mid-IR surveys will efficiently provide us with unprecedentedly large spectral samples, which can be studied further in the far-IR with SPICA. Paper accepted for publication on PASA on 18th October 2017, as part of the SPICA Special Issue |
| Databáze: | OpenAIRE |
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