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

TL;DR

This paper releases and describes intermediate-width spectral line data from the ALMA ACES survey of the Central Molecular Zone, providing detailed molecular line maps and data products for community use.

Contribution

It provides the first public release of specific spectral window data from the ACES survey, including key molecular line maps and analysis tools.

Findings

Identification of morphological correlations between continuum and molecular emission

Analysis of brightness ratios between isotopologue lines

Features and trends in molecular line data for future studies

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_2-1_1), H13CO+(1-0), H13CN(1-0), HN13C(1-0), and HC15N (1-0), among other molecular line transitions, with an angular resolution of ~2 arcsec and a velocity resolution of 1.7 km s-1 . 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.