Data releases

This web page releases the data based on previous projects led by the observatory and open-use programs.

• Some programs contain the data obtained with the ASTE telescope that was operated by Nobeyama Radio Observatory.
• Most data is offered in the FITS format.
• If you intend to use the data, please refer to a readme text of the program.

The programs are roughly categorised into three scientific regions: Galactic Centre, regions in Our Galaxy, and Extragalaxies. A shortcut for each category is shown below.

• Galactic Centre
• Our Galaxy
• Extragalaxies

Galactic Centre

High-resolution CO Images of the Galactic Central Molecular Zone

README

Data: (FITS file)

• ¹²CO (J=1-0): 12CO-2.BEARS.FITS
• ¹³CO (J=1-0): 13CO-2.FOREST.FITS
• C¹⁸O (J=1-0): C18O-2.FOREST.FITS

Reference:

1. “High-resolution CO Images of the Galactic Central Molecular Zone”
   Sekito Tokuyama, Tomoharu Oka, Shunya Takekawa, Yuhei Iwata, Shiho Tsujimoto, Masaya Yamada, Maiko Furusawa, & Mariko Nomura
   Publications of the Astronomical Society of Japan, 71(SP1), S19, pp.1-32 (2019) (DOI: 10.1093/pasj/psy150, ADS)

Large-Scale CO Surveys of the Galactic Center

• Data obtained with the Nobeyama 45-m telescope:
  • README for data obtained with the Nobeyama 45-m telescope
  • Data:
    • ¹²CO (J=1-0): 12CO-2.S115Q.FITS
    • ¹³CO (J=1-0): 13CO-2.S115Q.FITS
  • Reference:
    • “A Large-Scale CO Survey of the Galactic Center”,
      Tomoharu Oka, Tetsuo Hasegawa, Fumio Sato, Masato Tsuboi, Atsushi Miyazaki,
      1998, The Astrophysical Journal Supplement Series, 118, 455 (ADS)
• Data obtained with the ASTE telescope:
  • README for data obtained with the ASTE telescope
  • Data:
    • ¹²CO (J=3-2): CO3-2.ASTE.FITS
  • Reference:
    • “ASTE CO J = 3-2 Survey of the Galactic Center”,
      Tomoharu Oka, Yui Onodera, Makoto Nagai, Kunihiko Tanaka, Shinji Matsumura, Kazuhisa Kamegai,
      2012, The Astrophysical Journal Supplement Series, 201, 14 (ADS)

Galactic Center Survey of HCN J=4-3, H¹³CN J=1-0, HNC J=1-0, and HC₃N J=10-9

README

Data obtained with the Nobeyama 45-m telescope: (GZIP compressed FITS cube)

• H¹³CN (J=1-0): h13cn1_0_KT18_Tmb.fits.gz
• HNC (J=1-0): hnc1_0_KT18_Tmb.fits.gz
• HC₃N (J=10-9): hc3n10_9_KT18_Tmb.fits.gz

Data obtained with the ASTE telescope: (GZIP compressed FITS file)

• HCN (J=4-3): hcn4_3_KT18_Tmb.fits.gz

Excitation Analysis Code: (under preparation)

Reference:

1. “HCN J=4-3, HNC J=1-0, H¹³CN J=1-0, and HC₃N J=10-9 Maps of the Galactic Center Region. I. Spatially Resolved Measurements of Physical Conditions and Chemical Composition”,
   Kunihiko Tanaka, Makoto Nagai, Kazuhisa Kamegai, Takahiro Iino, and Takeshi Sakai,
   2018, The Astrophysical Journal Supplement Series, 236, 40 (ADS)

The Central Molecular Zone in H¹³CO⁺ and thermal SiO emission lines

README

Data: (GZIP compressed FITS file)

• H¹³CO⁺: H13_ABC_20.FITS.gz
• SiO: SIO_ABC_20.FITS.gz

Reference:

1. “The Central Molecular Zone in H¹³CO⁺ and thermal SiO emission lines”
   Masato Tsuboi, Atsushi Miyazaki, & Kenta Uehara,
   Publications of the Astronomical Society of Japan, 2015, Volume 67, Issue 5, id.90, 31pp. (ADS)

H¹³CO⁺ (J=1-0) and SiO (J=2-1) Survey of the Galactic Center Region

README

Data: (GZIP compressed FITS file)

• H¹³CO⁺: H13_26.FITS.gz
• SiO: SiO_26.FITS.gz

Reference:

1. “Sagittarius A Molecular Cloud Complex in H¹³CO⁺ and Thermal SiO Emission Lines”
   M. Tsuboi, K. Tadaki, A. Miyazaki, and T. Handa,
   PASJ 63, pp.763-794 (2011) (ADS)
2. (Erratum) PASJ 64, 64 (2012) (ADS)

A Galactic Center 50-km s^-1 Molecular Cloud

Target: Galactic Centre and 50-km s^-1 cloud

CS (J=1-0) Data obtained with the Nobeyama Millimeter Array: (GZIP compressed FITS file)

• Channel maps: 50-GCMC.MCUBE.1.FITS.gz
• Integrated intensity map: 50_GCMC.MAP-IT.1.FITS.gz

Reference:

1. “A Galactic Center 50-km s^-1 Molecular Cloud with an Expanding Shell”,
   Tsuboi, M., Miyazaki, A., & Okumura, S. K., Publ. Astron. Soc. Japan 61, pp.29-37 (2009) (ADS)
   Observation parameters are summarized in this paper.

CS (J=1-0) Survey of the Galactic Center Region

Readme & Data (TAR GZIP compressed FITS files)

• GC_CS10 (README / Data: 1 2 3 )
• GC_CS10H (README / Data: 1 2 )
• GC_CS10(Cube) (README / Data: 1 )

Reference:

1. “Dense Molecular Clouds in the Galactic Center Region. I. Observations and Data”,
   Tsuboi, M., Handa, T., & Ukita, N. 1999, ApJS, 120, 1 (ADS)

Regions in Our Galaxy

Nobeyama Line Survey Project

Target: L1527 Protostellar Core

Frequency Coverage: 79.762-116.875 GHz

README (Important notices are written)

Data:

• L1527 (text data in T_MB scale: L1527_NRO_3mm.txt)

Related Papers (pdf)

Reference:

1. “An unbiased spectral line survey observation toward the low-mass star-forming region L1527”,
   Kento Yoshida, Nami Sakai, Yuri Nishimura, Tomoya Tokudome, Yoshimasa Watanabe, Takeshi Sakai, Shuro Takano, & Satoshi Yamamoto
   Publ. Astron. Soc. Japan, 71(SP1), S18, pp.1-53 (2019) (doi: 10.1093/pasj/psy136, ADS)

Shocked Molecular Gas Adjacent to the W44 SNR

Target: Supernova Remnant W44

README

Data obtained with the Nobeyama 45-m telescope:

• HCO⁺(J=1-0): HCO+1-0.BEARS.Sashida13.FITS

Data obtained with the ASTE telescope:

• ¹²CO (J=3-2): CO3-2.ASTE.Sashida13.FITS

Reference:

1. “Kinematics of Shocked Molecular Gas Adjacent to the Supernova Remnant W44”,
   Tomoro Sashida, Tomoharu Oka, Kunihiko Tanaka, Kazuya Aono, 2013,
   The Astrophysical Journal, 774, 10 (ADS)

Nobeyama 45m Cygnux-X CO survey

Target: Cygnus-X region

README

Data:

• CN integrated intensity map

Reference:

1. “Nobeyama 45m Cygnus-X CO survey I: photodissociation of molecules revealed by the unbiased large-scale CN and C¹⁸O maps”
   Yamagishi et al. (2018) ApJS, 235, 9 (ADS)
2. “Nobeyama 45-m Cygnus X CO Survey: II Physical Properties of C¹⁸O Clumps”
   Takekoshi et al. (2019) ApJ, 883, 156 (ADS)

Web page

Nobeyama Star Formation Project

Please refer to the following papers as the data source, if you use the data in your own research.

Target: Orion A

• ¹²CO data (cube data: T_MB) (GZIP compressed FITS file)
• Reference:
  • “New Panoramic View of ¹²CO and 1.1mm Continuum Emission in the Orion A Giant Molecular Cloud. I. Survey Overview and Possible External Triggers of Star Formation”,
    Yoshito Shimajiri, Ryohei Kawabe, Shigehisa Takakuwa, Masao Saito, Takashi Tsukagoshi, Munetake Momose, Norio Ikeda, Eiji Akiyama, Jason E. Austermann, Hashime Ezawa, Kei Fukue, Masaaki Hiramatsu, David Hughes, Yoshimi Kitamura, Kohtaro Kohno, Yasutaka Kurono, Kimberly S. Scott, Grant W. Wilson, Atsumasa Yoshida, & S. Yun, 2011, PASJ, 63, 105 (ADS)
  • “Evidence For Cloud-Cloud Collision and Parsec-Scale Stellar Feedback Within the L1641-N Region”,
    Fumitaka Nakamura, Tomoya Miura, Yoshimi Kitamura, Yoshito Shimajiri, Ryohei Kawabe, Norio Ikeda, Takashi Tsukagoshi, Munetake Momose, & Zhi-Yun L., 2012, ApJ, 746, 25 (ADS)
  • “High Abundance Ratio of ¹³CO to C¹⁸O toward Photo-Dominated regions in the Orion A Giant Molecular Cloud”,
    Yoshito Shimajiri, Yoshimi Kitamura, Masao Saito, Munetake Momose, Fumitaka Nakamura, Nishitani Hiroyuki, Akifumi Yamabi, Chihomi Hara, Kazuhito Dobashi, Tomomi Shimoikura, Sho Katakura, Tomohiro Tanaka, Takashi Tsukagoshi, & Ryohei Kawabe, 2014, A&A, 564, A68 (ADS)
• Related paper:
  • “Extensive [CI] Mapping toward the Orion-A Giant Molecular Cloud”,
    Yoshito Shimajiri, Takeshi Sakai, Takashi Tsukagoshi, Yoshimi Kitamura, Munetake Momose, Masao Saito, Tai Oshima, Kotaro Kohno, & Ryohei Kawabe, 2013, ApJL, 774, L20 (ADS)
• ¹³CO data (Moment 0 map: T_MB), C¹⁸O data (Moment 0 map: T_MB) (GZIP compressed FITS files)
  We are still continuing the observations. The final cube data will be open when we complete the observations. If you need the cube data used in the following paper, please email Yoshito Shimajiri whose e-mail address is given in the paper.
• Reference:
  • “High Abundance Ratio of 13CO to C18O toward Photo-Dominated regions in the Orion A Giant Molecular Cloud”,
    Yoshito Shimajiri, Yoshimi Kitamura, Masao Saito, Munetake Momose, Fumitaka Nakamura, Nishitani Hiroyuki, Akifumi Yamabi, Chihomi Hara, Kazuhito Dobashi, Tomomi Shimoikura, Sho Katakura, Tomohiro Tanaka, Takashi Tsukagoshi, & Ryohei Kawabe, 2014, A&A, 564, A68 (ADS)

Target: Rho Ophiucus

• ¹²CO data (cube data: T_MB)
  Reference:
  • “The Molecular Outflows in the Rho Ophiuchi Main Cloud: Implications for Turbulence Generation”,
    Fumitaka Nakamura, Yuhei Kamada, Kamazaki Takeshi, Ryohei Kawabe, Yoshimi Kitamura, Yoshito Shimajiri, Takashi Tsukagoshi, Kengo Tachihara, Toshiya Akashi, Kenta Azegami, Norio Ikeda, Yasutaka Kurono, Zhi-Yun Li, Tomoya Miura, Ryoichi Nishi, and Tomofumi Umemoto ,
    2011, ApJ, 726, 46 (ADS)

Formation and Evolution of Cores – Relation to Cloud Structure and Star Formation

Readme & Data (GZIP compressed FITS files):

• HCL2-¹³CO (README/ DATA)
• HCL2-C¹⁸O (README / DATA)
• L1551-¹³CO (README / DATA)
• L1551-C¹⁸O (README / DATA)
• L1551-H¹³CO⁺ (README / DATA)
• L1688-H¹³CO⁺ (README / DATA)
• OrionA-H¹³CO⁺ (README / DATA)
• TA-¹³CO (README / DATA)
• TMC1-H¹³CO⁺ (README / DATA)

Orion A Giant Molecular Cloud

• N₂H⁺J=1-0 data (cube data: T_A^*)
  [0.3 km/s velocity bin, the LSR velocity is defined with respect to the main N₂H⁺J=1-0 component (F₁, F) = (2, 3)-(1, 2), contains seven hyperfine components]
  Reference:
  • Tatematsu, K., Kandori, R., Umemoto, T., and Sekimoto, Y. 2008, PASJ, 60, 407 (ADS)
• CS J=1-0 data (cube data: T_A^*)
  Reference:
  • Tatematsu, K., et al. 1993, ApJ, 404, 643 (ADS)

Extragalaxies

Nobeyama Line Survey Project

Target: NGC 1068 (AGN), NGC 253 (Starburst), and IC 342 (Starburst)

Frequency Coverage: 85-116 GHz

README (Important notices are written)

Data:

• NGC 1068 (Text data in T_MB scale: ngc1068_20190704.txt)
• NGC 253 (Text data in T_MB scale: ngc253_20190704.txt)
• IC 342 (Text data in T_MB scale: ic342_20190704.txt)

Reference:

• “A Molecular Line Survey toward the Nearby Galaxies NGC 1068, NGC 253, and IC 342 at 3 mm with the NRO 45 m Radio Telescope: The Data”,
  Shuro Takano, Taku Nakajima, & Kotaro Kohno
  Publ. Astron. Soc. Japan, 71(SP1), S20, pp.1-23 (2019)
  (doi: 10.1093/pasj/psz020, ADS)
• “A Molecular Line Survey toward the Nearby Galaxies NGC 1068, NGC 253, and IC 342 at 3 mm with the Nobeyama 45 m Radio Telescope: Impact of an AGN on 1 kpc Scale Molecular Abundances”,
  Taku Nakajima, Shuro Takano, Kotaro Kohno, Nanase Harada, & Eric Herbst
  Publ. Astron. Soc. Japan, 70, 7, pp.1-27 (2018)
  (doi: 10.1093/pasj/psx153, ADS)
• “Detections of C₂H, cyclic-C₃H₂, and H¹³CN in NGC 1068″,
  Taku Nakajima, Shuro Takano, Kotaro Kohno, & Hirofumi Inoue
  The Astrophysical Journal Letters 728, pp.38-42 (2011)
  (doi: 10.1088/2041-8205/728/2/L38, ADS)

¹²CO (J=1-0) map of M 33: NRO M 33 All-Disk Survey of Giant Molecular Clouds (NRO MAGiC)

Target: M 33

Data:

• Moment0 map (FITS)
• Cube data (FITS)

Reference:

1. “NRO M33 All-Disk Survey of Giant Molecular Clouds (NRO MAGiC). I. H I to H2 Transition”,
   Tosaki et al. 2011, PASJ, 63, 117 (ADS)

Related papers:

1. “Breakdown of Kennicutt-Schmidt Law at Giant Molecular Cloud Scales in M33”,
   Onodera et al. 2010, PASJ, 722, 127 (ADS)
2. “NRO M 33 All-Disk Survey of Giant Molecular Clouds (NRO MAGiC). II Dense Gas Formation”,
   Onodera et al. 2012, PASJ, 64, 133 (ADS)
3. “Giant Molecular Cloud Evolutions in the Nearby Spiral Galaxy M33”,
   Miura et al. 2012, ApJ, 761, 37 (ADS)

Nobeyama CO Atlas of Nearby Spiral Galaxies

Summary and Data:

• CO Atlas Webpage

Reference:

1. “Nobeyama CO Atlas of Nearby Spiral Galaxies: Distribution of Molecular Gas in Barred and Nonbarred Spiral Galaxies”,
   Kuno, N., Sato, N., Nakanishi, H., Hirota, A., Tosaki, T., Shioya, Y., Sorai, K., Nakai, N., Nishiyama, K., & Vila-Vilaró, B.
   2007, PASJ, 59, 117 (ADS)