New discoveries in the G+0.693-0.027 molecular cloud: Discovery of new O-, N- and S-bearing species

Miguel, Sanz-Novo

doi:10.5281/zenodo.17108831

New discoveries in the G+0.693-0.027 molecular cloud: Discovery of new O-, N- and S-bearing species

Miguel, Sanz-Novo

Publisher: Zenodo
DOI: 10.5281/zenodo.17108831
Repository: zenodo.org
Language: en

Abstract

In recent years, there has been a notable increase in new interstellar discoveries within the field of astrochemistry. In particular, the Galactic center molecular cloud G+0.693-0.027 (hereafter G+0.693) is recognized among the most relevant "astronomical mines" based on the detection of nearly 20 new interstellar molecules. Herein, we will present several of the latest discoveries, based on the superb sensitivity of an unbiased, ultradeep spectral survey carried out with the Yebes 40 m and IRAM 30 m telescopes toward G+0.693. Among these new detections we find carbonic acid (HOCOOH), the first interstellar molecule containing three oxygen atoms and the third carboxylic acid detected in the interstellar medium (ISM) to date, glycolamide, the first interstellar glycine isomer, and several S-bearing species such as thionylimide (HNSO) and protonated carbonyl sulfide (HOCS+). Overall, these new findings shed light on the actual levels of interstellar chemical complexity and pave the way for further integrated efforts across observations, theory, and laboratory research.

Full text

3. RESULTS AND DISCUSSION 4. CONCLUSIONS & PROSPECTS 2. METHODOLOGY1. INTRODUCTION1. INTRODUCTION 2. METHODOLOGY 3. RESULTS AND DISCUSSION 4. CONCLUSIONS & PROSPECTS 1. INTRODUCTION 2. METHODOLOGY 3. RESULTS AND DISCUSSION 4. CONCLUSIONS & PROSPECTS New discoveries in the G+0.693-0.027 molecular cloud: Detection of new O-, N-and S-bearing species M. Sanz-Novo*, V. M. Rivilla, I. Jiménez-Serra, J. Martín-Pintado, L. Colzi, A. Megías, Á. López-Gallifa,A. Martínez-Henares, D. San Andrés Centro de Astrobiología (CAB), INTA-CSIC,Torrejón de Ardoz, Madrid, Spain.* Presenting author e-mail address: [email protected] Acknowledgements M.S.N is thankful for funding from MICIU/AEI/10.13039/501100011033 and by “European Union NextGenerationEU/PRTR”, under a postdoctoral Juan de la Cierva Grant, JDC2022-048934I. The authors thank funding from the Spanish MICIU/AEI (RYC2020-029387-I, PID2022-136814NB-I00)and Consejo Superior de Investigaciones Científicas (CSIC) through project i-LINK23017 SENTINEL. Image credit: SARAO DISCOVERY OF THIONYLIMIDE (HNSO) IN SPACE: First interstellar species containing, simultaneously O, N, and S TA (mK) DISCOVERY OF CH3SCH3 (DMS) IN THE ISM: Largest S-bearing interstellar molecule, together with its isomer CH3CH2SH. DISCOVERY IN SPACE OF CARBONIC ACID (trans-HOCOOH): First interstellar molecule with more than 2 oxygen atoms and third carboxylic acid detected so far