Logo
ScienceStack
Table of Contents
Fetching ...
Sign In

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

Xing Lu, Daniel L. Walker, Adam Ginsburg, Ashley T. Barnes, Pei-Ying Hsieh, Alvaro Sanchez-Monge, Savannah R. Gramze, Nazar Budaiev, Marc W. Pound, Jaime E. Pineda, Alyssa Bulatek, Claire Cook, Jonathan D. Henshaw, Katharina Immer, Namitha Issac, Desmond Jeff, Fu-Heng Liang, Steven N. Longmore, Elisabeth A. C. Mills, Sergio Martin, Xing Pan, Qizhou Zhang, John Bally, Cara Battersby, Laura Colzi, Paul T. P. Ho, Izaskun Jimenez-Serra, J. M. Diederik Kruijssen, Maya A. Petkova, Mattia C. Sormani, Robin G. Tress, Jennifer Wallace, J. Armijos-Abendano, Lucia Armillotta, N. Bijas, Rojita Buddhacharya, Laura A. Busch, Natalie O. Butterfield, Melanie Chevance, Ana Karla Diaz-Rodriguez, Christoph Federrath, Ruben Fedriani, Pablo Garcia, Qi-Lao Gu, H Perry Hatchfield, Rebecca J. Houghton, Yue Hu, Janik Karoly, Ralf S. Klessen, Mark R. Krumholz, Xunchuan Liu, Farideh Mazoochi, Francisco Nogueras-Lara, Dylan Pare, Denise Riquelme-Vasquez, Victor M. Rivilla, Miriam G. Santa-Maria, Anika Schmiedeke, Yoshiaki Sofue, Volker Tolls, Q. Daniel Wang, Gwenllian M. Williams, Fengwei Xu, Suinan Zhang

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.

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.
Paper Structure (15 sections, 17 figures, 4 tables)

This paper contains 15 sections, 17 figures, 4 tables.

Table of Contents

  1. Introduction
  2. Observations
  3. Data processing
  4. Data reduction
  5. Data products
  6. Discussion
  7. Morphological correlations between the continuum and the molecular emission
  8. Line ratios between H13CN, HN13C, and HC15N
  9. Other interesting features in the data
  10. Conclusions
  11. Data release summary
  12. Member-level products (12m and 7m)
  13. Group-level products (Combined cubes per region)
  14. Group-level products (Full CMZ mosaics)
  15. Array combination using Miriad

Figures (17)

  • Figure 1: Typical spectra of the two SPWs toward a hot core (top) and a relatively quiescent core (bottom), respectively. The spectra are extracted and averaged from a circle with a radius of 075, centered at ($l$, $b$)=(359.436$^\circ$, $-$0.104$^\circ$) and (0.261$^\circ$, 0.016$^\circ$), respectively. The six transitions presented in this paper are labeled. There are other line emission features in the two SPWs that will not be discussed in this data release paper.
  • Figure 2: Integrated brightness temperature maps of SiO (2--1), SO (2$_2$--1$_1$), and H$^{13}$CO$^+$ (1--0). The two-piece colour bars are a combination of a linear scale between 0 and approximately 5$\sigma$ and a logarithmic scale above approximately 5$\sigma$ up to the 99.9 percentile of the data.
  • Figure 3: Integrated brightness temperature maps of H$^{13}$CN (1--0), HN$^{13}$C (1--0), and HC$^{15}$N (1--0). The two-piece colour bars are a combination of a linear scale between 0 and approximately 5$\sigma$ and a logarithmic scale above approximately 5$\sigma$ up to the 99.9 percentile of the data.
  • Figure 4: Peak brightness temperature maps of SiO (2--1), SO (2$_2$--1$_1$), and H$^{13}$CO$^+$ (1--0). The two-piece colour bars are a combination of a linear scale between 0 and approximately 5$\sigma$ and a logarithmic scale above approximately 5$\sigma$ up to the 99.9 percentile of the data.
  • Figure 5: Peak brightness temperature maps of H$^{13}$CN (1--0), HN$^{13}$C (1--0), and HC$^{15}$N (1--0). The two-piece colour bars are a combination of a linear scale between 0 and approximately 5$\sigma$ and a logarithmic scale above approximately 5$\sigma$ up to the 99.9 percentile of the data.
  • ...and 12 more figures