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Start Over Author "Ogawa, Shoji" Journal publications of the astronomical society of japan
3 results on '"Ogawa, Shoji"'

1. Optical IFU observations of GOALS sample with KOOLS-IFU on Seimei Telescope: Initial results of nine U/LIRGs at z < 0.04

Author

Toba, Yoshiki, primary, Yamada, Satoshi, additional, Matsubayashi, Kazuya, additional, Terao, Koki, additional, Moriya, Aoi, additional, Ueda, Yoshihiro, additional, Ohta, Kouji, additional, Hashiguchi, Aoi, additional, Himoto, Kazuharu G, additional, Izumiura, Hideyuki, additional, Joh, Kazuma, additional, Kato, Nanako, additional, Koyama, Shuhei, additional, Maehara, Hiroyuki, additional, Misato, Rana, additional, Noboriguchi, Akatoki, additional, Ogawa, Shoji, additional, Ota, Naomi, additional, Shibata, Mio, additional, Tamada, Nozomu, additional, Yanagawa, Anri, additional, Yonekura, Naoki, additional, Nagao, Tohru, additional, Akiyama, Masayuki, additional, Kajisawa, Masaru, additional, and Matsuoka, Yoshiki, additional

Published
2022
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2. Optical IFU observations of GOALS sample with KOOLS-IFU on Seimei Telescope: Initial results of nine U/LIRGs at z < 0.04.

Author

Toba, Yoshiki, Yamada, Satoshi, Matsubayashi, Kazuya, Terao, Koki, Moriya, Aoi, Ueda, Yoshihiro, Ohta, Kouji, Hashiguchi, Aoi, Himoto, Kazuharu G, Izumiura, Hideyuki, Joh, Kazuma, Kato, Nanako, Koyama, Shuhei, Maehara, Hiroyuki, Misato, Rana, Noboriguchi, Akatoki, Ogawa, Shoji, Ota, Naomi, Shibata, Mio, and Tamada, Nozomu

Subjects
ACTIVE galactic nuclei, SUPERMASSIVE black holes, GALAXY mergers, TELESCOPES, IONIZED gases, MERGERS & acquisitions
Abstract

We present ionized gas properties of nine local ultra/luminous infrared galaxies (U/LIRGs) at z < 0.04 through Integral Field Unit (IFU) observations with KOOLS-IFU on the Seimei Telescope. The observed targets are drawn from the Great Observatories All-sky LIRG Survey (GOALS), covering a wide range of merger stages. We successfully detect emission lines such as Hβ, [O  iii ]λ5007, Hα, [N  ii ]λλ6549, 6583, and [S  ii ]λλ6717, 6731 with a spectral resolution of R = 1500–2000, which provides (i) a spatially resolved (∼200–700 pc) moment map of ionized gas and (ii) diagnostics for an active galactic nucleus (AGN) within the central ∼3–11 kpc in diameter for our sample. We find that the [O  iii ] outflow that is expected to be driven by an AGN tends to be stronger (i) towards the galactic center and (ii) as a sequence of the merger stage. In particular, the outflow strength in the late-stage (stage D) mergers is about 1.5 times stronger than that in the early-state (stage B) mergers, which indicates that galaxy mergers could induce AGN-driven outflow and play an important role in the co-evolution of galaxies and supermassive black holes. [ABSTRACT FROM AUTHOR]

Published
2022
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3. Optical IFU observations of GOALS sample with KOOLS-IFU on Seimei Telescope: Initial results of nine U/LIRGs at z< 0.04

Author

Toba, Yoshiki, Yamada, Satoshi, Matsubayashi, Kazuya, Terao, Koki, Moriya, Aoi, Ueda, Yoshihiro, Ohta, Kouji, Hashiguchi, Aoi, Himoto, Kazuharu G, Izumiura, Hideyuki, Joh, Kazuma, Kato, Nanako, Koyama, Shuhei, Maehara, Hiroyuki, Misato, Rana, Noboriguchi, Akatoki, Ogawa, Shoji, Ota, Naomi, Shibata, Mio, Tamada, Nozomu, Yanagawa, Anri, Yonekura, Naoki, Nagao, Tohru, Akiyama, Masayuki, Kajisawa, Masaru, and Matsuoka, Yoshiki

Abstract

We present ionized gas properties of nine local ultra/luminous infrared galaxies (U/LIRGs) at z< 0.04 through Integral Field Unit (IFU) observations with KOOLS-IFU on the Seimei Telescope. The observed targets are drawn from the Great Observatories All-sky LIRG Survey (GOALS), covering a wide range of merger stages. We successfully detect emission lines such as Hβ, [O iii]λ5007, Hα, [N ii]λλ6549, 6583, and [S ii]λλ6717, 6731 with a spectral resolution of R= 1500–2000, which provides (i) a spatially resolved (∼200–700 pc) moment map of ionized gas and (ii) diagnostics for an active galactic nucleus (AGN) within the central ∼3–11 kpc in diameter for our sample. We find that the [O iii] outflow that is expected to be driven by an AGN tends to be stronger (i) towards the galactic center and (ii) as a sequence of the merger stage. In particular, the outflow strength in the late-stage (stage D) mergers is about 1.5 times stronger than that in the early-state (stage B) mergers, which indicates that galaxy mergers could induce AGN-driven outflow and play an important role in the co-evolution of galaxies and supermassive black holes.

Published
2022
Full Text
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