ALMA Central Molecular Zone Exploration Survey (ACES)-IV. Data of the two intermediate-width spectral windows
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.
Cite
@article{arxiv.2602.20445,
title = {ALMA Central Molecular Zone Exploration Survey (ACES)-IV. Data of the two intermediate-width spectral windows},
author = {Xing Lu and Daniel L. Walker and Adam Ginsburg and Ashley T. Barnes and Pei-Ying Hsieh and Alvaro Sanchez-Monge and Savannah R. Gramze and Nazar Budaiev and Marc W. Pound and Jaime E. Pineda and Alyssa Bulatek and Claire Cook and Jonathan D. Henshaw and Katharina Immer and Namitha Issac and Desmond Jeff and Fu-Heng Liang and Steven N. Longmore and Elisabeth A. C. Mills and Sergio Martin and Xing Pan and Qizhou Zhang and John Bally and Cara Battersby and Laura Colzi and Paul T. P. Ho and Izaskun Jimenez-Serra and J. M. Diederik Kruijssen and Maya A. Petkova and Mattia C. Sormani and Robin G. Tress and Jennifer Wallace and J. Armijos-Abendano and Lucia Armillotta and N. Bijas and Rojita Buddhacharya and Laura A. Busch and Natalie O. Butterfield and Melanie Chevance and Ana Karla Diaz-Rodriguez and Christoph Federrath and Ruben Fedriani and Pablo Garcia and Qi-Lao Gu and H Perry Hatchfield and Rebecca J. Houghton and Yue Hu and Janik Karoly and Ralf S. Klessen and Mark R. Krumholz and Xunchuan Liu and Farideh Mazoochi and Francisco Nogueras-Lara and Dylan Pare and Denise Riquelme-Vasquez and Victor M. Rivilla and Miriam G. Santa-Maria and Anika Schmiedeke and Yoshiaki Sofue and Volker Tolls and Q. Daniel Wang and Gwenllian M. Williams and Fengwei Xu and Suinan Zhang},
journal= {arXiv preprint arXiv:2602.20445},
year = {2026}
}
Comments
Accepted to MNRAS. High-resolution figures will be available in the journal paper. Website is https://sites.google.com/view/aces-cmz/home and data release is linked from there. Pipeline code is at https://github.com/ACES-CMZ/reduction_ACES/releases/tag/2026-02-18