Schuller, F., Urquhart, J. S., Csengeri, T., Colombo, D., Duarte-Cabral, A., Mattern, M., Ginsburg, A., Pettitt, A. R., Wyrowski, F., Anderson, L., Azagra, F., Barnes, P., Beltran, M., Beuther, H., Billington, S., Bronfman, L., Cesaroni, R., Dobbs, C., Eden, D., Lee, M-Y, Medina, S-N X., Menten, K. M., Moore, T., Montenegro-Montes, F. M., Ragan, S., Rigby, A., Riener, M., Russeil, D., Schisano, E., Sanchez-Monge, A., Traficante, A., Zavagno, A., Agurto, C., Bontemps, S., Finger, R., Giannetti, A., Gonzalez, E., Hernandez, A. K., Henning, T., Kainulainen, J., Kauffmann, J., Leurini, S., Lopez, S., Mac-Auliffe, F., Mazumdar, P., Molinari, S., Motte, F., Muller, E., Nguyen-Luong, Q., Parra, R., Perez-Beaupuits, J-P, Schilke, P., Schneider, N., Suri, S., Testi, L., Torstensson, K., Veena, V. S., Venegas, P., Wang, K. and Wienen, M. (2021). The SEDIGISM survey: First Data Release and overview of the Galactic structure. Mon. Not. Roy. Astron. Soc., 500 (3). S. 3064 - 3083. OXFORD: OXFORD UNIV PRESS. ISSN 1365-2966

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Abstract

The SEDIGISM (Structure, Excitation and Dynamics of the Inner Galactic InterstellarMedium) survey used the APEX telescope to map 84 deg(2) of the Galactic plane between l = -60 degrees and +31 degrees in several molecular transitions, including (CO)-C-13(2 - 1) and (CO)-O-18(2 - 1), thus probing the moderately dense (similar to 10(3) cm(-3)) component of the interstellar medium. With an angular resolution of 30 arcsec and a typical 1 sigma sensitivity of 0.8-1.0K at 0.25 km s(-1) velocity resolution, it gives access to a wide range of structures, from individual star-forming clumps to giant molecular clouds and complexes. The coverage includes a good fraction of the first and fourth Galactic quadrants, allowing us to constrain the large-scale distribution of cold molecular gas in the inner Galaxy. In this paper, we provide an updated overview of the full survey and the data reduction procedures used. We also assess the quality of these data and describe the data products that are being made publicly available as part of this First Data Release (DR1). We present integrated maps and position-velocity maps of the molecular gas and use these to investigate the correlation between the molecular gas and the large-scale structural features of the Milky Way such as the spiral arms, Galactic bar and Galactic Centre. We find that approximately 60 per cent of the molecular gas is associated with the spiral arms and these appear as strong intensity peaks in the derived Galactocentric distribution. We also find strong peaks in intensity at specific longitudes that correspond to the Galactic Centre and well-known star-forming complexes, revealing that the 13CO emission is concentrated in a small number of complexes rather than evenly distributed along spiral arms.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Schuller, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Urquhart, J. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Csengeri, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Colombo, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Duarte-Cabral, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mattern, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ginsburg, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pettitt, A. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wyrowski, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Anderson, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Azagra, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Barnes, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beltran, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beuther, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Billington, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bronfman, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cesaroni, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dobbs, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Eden, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lee, M-YUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Medina, S-N X.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Menten, K. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Moore, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Montenegro-Montes, F. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ragan, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rigby, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Riener, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Russeil, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schisano, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sanchez-Monge, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Traficante, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zavagno, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Agurto, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bontemps, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Finger, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giannetti, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gonzalez, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hernandez, A. K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Henning, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kainulainen, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kauffmann, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Leurini, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lopez, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mac-Auliffe, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mazumdar, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Molinari, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Motte, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Muller, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nguyen-Luong, Q.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Parra, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Perez-Beaupuits, J-PUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schilke, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schneider, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Suri, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Testi, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Torstensson, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Veena, V. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Venegas, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wang, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wienen, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-606991
DOI: 10.1093/mnras/staa2369
Journal or Publication Title: Mon. Not. Roy. Astron. Soc.
Volume: 500
Number: 3
Page Range: S. 3064 - 3083
Date: 2021
Publisher: OXFORD UNIV PRESS
Place of Publication: OXFORD
ISSN: 1365-2966
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
RECONSTRUCTING CO MAPS; H-II REGIONS; MILKY-WAY; STAR-FORMATION; MOLECULAR CLOUDS; CARBON-MONOXIDE; INNER-GALAXY; COMPLETE SAMPLE; PATTERN SPEED; SPIRAL ARMSMultiple languages
Astronomy & AstrophysicsMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/60699

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