ALMA Central Molecular Zone Exploration Survey (ACES) – IV. Data of the two intermediate-width spectral windows

Lu, X; Walker, DL; Ginsburg, A; Barnes, AT; Hsieh, PY; Sánchez-Monge, Á; Gramze, SR; Budaiev, N; Pound, MW; Pineda, JE; Bulatek, A; Cook, C; Henshaw, JD; Immer, K; Issac, N; Jeff, D; Liang, FH; Longmore, SN; Mills, EAC; Martín, S; Pan, X; Zhang, Q; Bally, J; Battersby, C; Colzi, L; Ho, PTP; Jiménez-Serra, I; Kruijssen, JMD; Petkova, MA; Sormani, MC; Tress, RG; Wallace, J; Armijos-Abendaño, J; Armillotta, L; Bijas, N; Buddhacharya, R; Busch, LA; Butterfield, NO; Chevance, M; Díaz-Rodríguez, AK; Federrath, C; Fedriani, R; García, P; Gu, QL; Hatchfield, HP; Houghton, RJ; Hu, Y; Karoly, J; Klessen, RS; Krumholz, MR; Liu, X; Mazoochi, F; Nogueras-Lara, F; Paré, D; Riquelme-Vásquez, D; Rivilla, VM; Santa-Maria, MG; Schmiedeke, A; Sofue, Y; Tolls, V; Wang, QD; Williams, GM; Xu, F; Zhang, S

ALMA Central Molecular Zone Exploration Survey (ACES) – IV. Data of the two intermediate-width spectral windows

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Lu, X, Walker, DL, Ginsburg, A, Barnes, AT, Hsieh, PY, Sánchez-Monge, Á, Gramze, SR, Budaiev, N, Pound, MW, Pineda, JE, Bulatek, A, Cook, C, Henshaw, JD ORCID: 0000-0001-9656-7682, Immer, K, Issac, N, Jeff, D, Liang, FH, Longmore, SN ORCID: 0000-0001-6353-0170, Mills, EAC, Martín, S et al (2026) ALMA Central Molecular Zone Exploration Survey (ACES) – IV. Data of the two intermediate-width spectral windows. Monthly Notices of the Royal Astronomical Society, 552 (2). ISSN 0035-8711

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Publisher URL: https://doi.org/10.1093/mnras/stag255

Abstract

We release the intermediate-width spectral window data from the ALMA Central Molecular Zone Exploration Survey (ACES) Large Program, which covers SiO (2–1), SO (2(Formula presented) –1(Formula presented) ), H(Formula presented) CO(Formula presented) (1–0), H(Formula presented) CN (1–0), HN(Formula presented) C (1–0), and HC(Formula presented) N (1–0), among other molecular line transitions, with an angular resolution of (Formula presented) 2 arcsec and a velocity resolution of 1.7 km s(Formula presented). The full cubes of the two spectral windows as well as the key data products will be available to the community. We also present the integrated brightness, peak brightness, centroid velocity, and Galactic longitude-velocity maps of the six lines. We briefly discuss morphological correlations between the continuum and the molecular line emission, and brightness ratios between pairs of isotopologue or isotopomer lines. We highlight features and trends in the data that will be followed up in upcoming ACES science papers.

Item Type:	Article
Uncontrolled Keywords:	ISM: structure; Galaxy: centre; 5101 Astronomical Sciences; 51 Physical Sciences; 0201 Astronomical and Space Sciences; Astronomy & Astrophysics; 5101 Astronomical sciences; 5107 Particle and high energy physics; 5109 Space sciences
Subjects:	Q Science > QB Astronomy Q Science > QC Physics
Divisions:	Astrophysics Research Institute
Publisher:	Oxford University Press
Date of acceptance:	2 February 2026
Date of first compliant Open Access:	2 November 2026
Date Deposited:	02 Nov 2026 15:50
Last Modified:	02 Nov 2026 15:50
DOI or ID number:	10.1093/mnras/stag255
URI:	https://researchonline.ljmu.ac.uk/id/eprint/29800

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