Representative Papers

• (Sub)millimeter observations
  • ALMA

    1. "ALMA HCN and HCO+ J =3-2 Observations of Optical Seyfert and Luminous Infrared Galaxies: Confirmation of Elevated HCN-to-HCO+ Flux Ratios in AGNs",
       Imanishi, M., Nakanishi, K., Izumi, T., & Wada, K. 2018, ApJL, 853, L25 (arXiv:1801.06564)
       Retrieve at: ADS or arXiv:1801.06564

    2. "ALMA HCN and HCO+ J =3-2 Observations of Optical Seyfert and Luminous Infrared Galaxies: Confirmation of Elevated HCN-to-HCO+ Flux Ratios in AGNs",
       Imanishi, M., Nakanishi, K., & Izumi, T. 2016, AJ, 152, 218 (arXiv:1609.01291)
       Retrieve at: ADS or arXiv:1609.01291

    3. "ALMA Investigation of Vibrationally Excited HCN/HCO+/HNC Emission Lines in the AGN-Hosting Ultraluminous Infrared Galaxy IRAS 20551-4250",
       Imanishi, M., Nakanishi, K., & Izumi, T. 2016, ApJ, 825, 44 (arXiv:1605.00644)
       Retrieve at: ADS or arXiv:1605.00644

    4. "ALMA 0.1-0.2 arcsec Resolution Imaging of the NGC 1068 Nucleus: Compact Dense Molecular Gas Emission at the Putative AGN Location",
       Imanishi, M., Nakanishi, K., & Izumi, T. 2016, ApJL, 822, L10 (arXiv:1604.03953)
       Retrieve at: ADS or arXiv:1604.03953

    5. "ALMA Observations of Nearby Luminous Infrared Galaxies with Various AGN Energetic Contributions Using Dense Gas Tracers",
       Imanishi, M., & Nakanishi, K. 2014, AJ, 148, 9 (arXiv:1404.6597)
       Retrieve at: ADS or arXiv:1404.6597

    6. "ALMA Detection of the Vibrationally Excited HCN J = 4-3 Emission Line in the AGN-hosting Luminous Infrared Galaxy IRAS 20551-4250",
       Imanishi, M., & Nakanishi, K. 2013, AJ, 146, 91 (arXiv:1308.4414)
       Retrieve at: ADS or arXiv:1308.4414

    7. "High-density Molecular Gas Properties of the Starburst Galaxy NGC 1614 Revealed with ALMA",
       Imanishi, M., & Nakanishi, K. 2013, AJ, 146, 47 (arXiv:1307.3694)
       Retrieve at: ADS or arXiv:1307.3694

  • Nobeyama Millimeter Array

    1. "Nobeyama Millimeter Interferometric HCN(1-0) and HCO+(1-0) Observations of Further Luminous Infrared Galaxies",
       Imanishi, M., Nakanishi, K., Tamura, Y., Peng, C-H. 2009, AJ, 137, 3581 (arXiv:0901.0704)
       Retrieve at: ADS or arXiv:0901.0704

    2. "Millimeter Interferometric HCN(1-0) and HCO+(1-0) Observations of Luminous Infrared Galaxies",
       Imanishi, M., Nakanishi, K., Tamura, Y., Oi, N., & Kohno, K. 2007, AJ, 134, 1236 (arXiv:0709.1713)
       Retrieve at: ADS or arXiv:0709.1713

    3. "Infrared 2-4 Micron Spectroscopy and Millimeter Interferometric HCN and HCO+ Observations of the Individual Merging Components of Arp299",
       Imanishi, M., & Nakanishi, K. 2006, PASJ, 58, 813 (astro-ph/0608309)
       Retrieve at: ADS or Astro-ph/0608309

    4. "Millimeter Interferometric Investigations of the Energy Sources of Three Ultraluminous Infrared Galaxies, UGC 5101, Markarian 273, and IRAS 17208",
       Imanishi, M., Nakanishi, K., & Kohno, K. 2006, AJ, 131, 2888 (astro-ph/0602227)
       Retrieve at: ADS or Astro-ph/0602227

    5. "Near-infrared and Millimeter Constraints on the Nuclear Energy Source of the Infrared Luminous Galaxy NGC 4418",
       Imanishi, M., Nakanishi, K., Kuno, N., & Kohno, K. 2004, AJ, 128, 2037 (astro-ph/0407469)
       Retrieve at: ADS or Astro-ph/0407469

  • ASTE

    1. "ASTE Simultaneous HCN (4-3) and HCO+(4-3) Observations of the Two Luminous Infrared Galaxies NGC 4418 and Arp 220",
       Imanishi, M., Nakanishi, K., Yamada, M., Tamura, Y., & Kohno, K. 2010, PASJ, 62, 201 (arXiv:1001.0582)
       Retrieve at: ADS or arXiv:1001.0582

• Infrared spectroscopy and imaging
  • Space-based Satellites (Spitzer, AKARI)

    1. "AKARI IRC Infrared 2.5-5 micron Spectroscopy of a Large Sample of Luminous Infrared Galaxies",
       Imanishi, M.,Nakagawa, T., Shirahata, M., Ohyama, Y., & Onaka, T. 2010, ApJ, 721, 1233 (arXiv:1008.1585)
       Retrieve at: ADS or arXiv:1008.1585

    2. "Systematic infrared 2.5-5 micron spectroscopy of nearby ultraluminous infrared galaxies with AKARI",
       Imanishi, M., Nakagawa, T., Ohyama, Y., Shirahata, M., Wada, T., Onaka, T., & Oi, N. 2008, PASJ, 60, S489 (arXiv:0808.0363)
       Retrieve at: ADS or arXiv:0808.0363

    3. "Spitzer Infrared Low-Resolution Spectroscopic Study of Buried Active Galactic Nuclei in a Complete Sample of Nearby Ultraluminous Infrared Galaxies",
       Imanishi, M., Maiolino, R., & Nakagawa, T. 2010, ApJ, 721, 1233 (arXiv:0912.2748)
       Retrieve at: ADS or arXiv:0912.2748

    4. "Luminous Buried Active Galactic Nuclei as a Function of Galaxy Infrared Luminosity Revealed through Spitzer Low-resolution Infrared Spectroscopy",
       Imanishi, M. 2009, ApJ, 694, 751 (arXiv:0901.0558)
       Retrieve at: ADS or arXiv:0901.0558

    5. "A Spitzer IRS Low-Resolution Spectroscopic Search for Buried AGNs in Nearby Ultraluminous Infrared Galaxies - A Constraint on Geometry between Energy Sources and Dust -"
       Imanishi, M., Dudley, C. C., Maiolino, R., Maloney, P. R., Nakagawa, T., & Risaliti, G. 2007, ApJS, 171, 72 (astro-ph/0702136)
       Retrieve at: ADS or Astro-ph/0702136

  • Ground-based Telescopes (Subaru, IRTF, UKIRT)

    1. "Subaru Adaptive-optics High-spatial-resolution Infrared K- and L'-band Imaging Search for Deeply Buried Dual AGNs in Merging Galaxies"
       Imanishi, M., & Saito, Y. 2014, ApJ, 780, 106 (arXiv:1312.2031)
       Retrieve at: ADS or arXiv:1312.2031

    2. "Subaru and Gemini High Spatial Resolution Infrared 18 Micron Imaging Observations of Nearby Luminous Infrared Galaxies",
       Imanishi, M., Imase, K., Oi, N., & Ichikawa, K. 2011, AJ, 141, 156 (arXiv:1102.4854)
       Retrieve at: ADS or arXiv:1102.4854

    3. "Infrared 3-4 Micron Spectroscopy of Nearby PG QSOs and AGN-Nuclear Starburst Connections in High-luminosity AGN Populations"
       Imanishi, M., Ichikawa, K., Takeuchi, T., Kawakatu, N., Oi, N., & Imase, 2011, PASJ, 63, S447 (arXiv:1101.1970)
       Retrieve at: ADS or arXiv:1101.1970

    4. "Infrared 3-4 Micron Spectroscopy of Infrared Luminous Galaxies with Possible Signatures of Obscured Active Galactic Nuclei"
       Imanishi, M. 2006, AJ, 131, 2406 (astro-ph/0602143)
       Retrieve at: ADS or Astro-ph/0602143

    5. "Infrared 3-4 Micron Spectroscopic Investigations of a Large Sample of Nearby Ultraluminous Infrared Galaxies",
       Imanishi, M., Dudley, C. C., & Maloney, Philip. 2006, ApJ, 637, 114 (astro-ph/0509861)
       Retrieve at: ADS or Astro-ph/0509861

    6. "Comparison of Nuclear Starburst Luminosities between Seyfert 1 and 2 Galaxies Based on Near-infrared Spectroscopy"
       Imanishi, M., & Wada, K. 2004, ApJ, 617, 214 (astro-ph/0408422)
       Retrieve at: ADS or Astro-ph/0408422

    7. "Near-Infrared K-Band Spectroscopic Investigation of Seyfert 2 Nuclei in the CfA and 12 Micron Samples"
       Imanishi, M. & Alonso-Herrero, A., 2004, ApJ, 614, 122 (astro-ph/0407215)
       Retrieve at: ADS or Astro-ph/0407215

    8. "Compact Nuclear Starbursts in Seyfert 2 Galaxies from the CfA and 12 Micron Samples"
       Imanishi, M., 2003, ApJ, 599, 918 (astro-ph/0309083)
       Retrieve at: ADS or Astro-ph/0309083

    9. "3.1 Micron H2O Absorption in LINER-type Ultraluminous Infrared Galaxies with Cool Far-infrared Colors: The Centrally Concentrated Nature of their Deeply Buried Energy Sources"
       Imanishi, M., & Maloney, P. R., 2003, ApJ, 588, 165 (astro-ph/0302044)
       Retrieve at: ADS or Astro-ph/0302044

    10. "3-4 Micron Spectroscopy of Seyfert 2 Nuclei to Quantitatively Assess the Energetic Importance of Compact Nuclear Starbursts"
        Imanishi, M., 2002, ApJ, 569, 44 (astro-ph/0112299)
        Retrieve at: ADS or Astro-ph/0112299

    11. "Strong Evidence for a Buried Active Galactic Nucleus in UGC 5101: Implications for LINER-type Ultraluminous Infrared Galaxies",
        Imanishi, M., Dudley, C. C., & Maloney, C. R. 2001, ApJ, 558, L93 (astro-ph/0108156)
        Retrieve at: ADS or Astro-ph/0108156

    12. "Energy Diagnoses of Nine Infrared Luminous Galaxies Based on 3-4 Micron Spectra",
        Imanishi, M., & Dudley, C. C. 2000, ApJ, 545, 701 (astro-ph/0008092)
        Retrieve at: ADS or Astro-ph/0008092

    13. "The 3.4-micron absorption feature towards three obscured active galactic nuclei",
        Imanishi, M. 2000, MNRAS, 319, 331 (astro-ph/0008093)
        Retrieve at: ADS or Astro-ph/0008093

    14. "The 9.7 Micron Silicate Dust Absorption toward the Cygnus A Nucleus and the Inferred Location of the Obscuring Dust",
        Imanishi, M., & Ueno, S. 2000, ApJ, 535, 626 (astro-ph/0001321)
        Retrieve at: ADS or Astro-ph/0001321

    15. "Spectroscopic Study of NGC 1068 in the 3 micron Band",
        Imanishi, M., Terada, H., Sugiyama, K., Motohara, K., Goto, M., & Maihara, T. 1997, PASJ, 49, 69
        Retrieve at: ADS

• X-ray spectroscopy
  • X-ray satellites (XMM-Newton, Chandra, ASCA)

    1. "X-ray Underluminous Active Galactic Nuclei Relative to Broad Emission Lines in Ultr\ aluminous Infrared Galaxies",
       Imanishi, M., & Terashima, Y. 2004, AJ, 127, 758 (astro-ph/0311112)
       Retrieve at: ADS or Astro-ph/0311112

    2. "X-ray Evidence for a Buried Active Galactic Nucleus in UGC 5101,
       Imanishi, M., Terashima, Y., Anabuki, N., & Nakagawa, T. 2003, ApJ, 596, L167 (astro-ph/0309425)
       Retrieve at: ADS or Astro-ph/0309425

    3. "Hard X-Ray Luminosities of Multinuclei Infrared Luminous Galaxies Showing a Radio/Far-Infrared Excess",
       Imanishi, M., & Ueno, S. 1999, ApJ, 527, 165 (astro-ph/9908112)
       Retrieve at: ADS or Astro-ph/9908122

• Instrumentation
  • Infrared Spectrograph

    1. "LEWIS - A Near-Infrared Cross-Dispersed Spectrograph",
       Imanishi, M., Terada, H., Sugiyama, K., Tomita, K., Goto, M., Maihara, T., Kobayashi, N., & Nagata, T. 1996, PASP, 108, 1129
       Retrieve at: ADS

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Last modified: 2018 March 2