The search for gas in debris discs: ALMA detection of CO gas in HD 36546-Reference-Cited by-同舟云学术

The search for gas in debris discs: ALMA detection of CO gas in HD 36546

Published:2021-10-08 Issue:1 Volume:509 Page:693-700
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Rebollido Isabel¹^ORCID,Ribas Álvaro²,de Gregorio-Monsalvo Itziar²,Villaver Eva³,Montesinos Benjamín³,Chen Christine¹,Canovas Héctor⁴,Henning Thomas⁵,Moór Attila⁶,Perrin Marshall¹,Rivière-Marichalar Pablo⁷,Eiroa Carlos

Affiliation:

1. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA

2. European Southern Observatory (ESO), Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile, Chile

3. Centro de Astrobiología (CAB, CSIC-INTA), ESAC Campus Camino Bajo del Castillo, s/n, Villanueva de la Caǹada, E-28692 Madrid, Spain

4. Telespazio UK for the European Space Agency (ESA), European Space Astronomy Centre (ESAC), Camino Bajo del Castillo s/n, E-28692 Villanueva de la Cañada, Madrid, Spain

5. Max-Planck-Institut für Astronomie (MPIA), Königstuhl 17, D-69117 Heidelberg, Germany

6. Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Eötvös Loránd Research Network (ELKH), Konkoly-Thege Miklós út 15-17, H-1121 Budapest, Hungary

7. Observatorio Astronómico Nacional (OAN-IGN)-Observatorio de Madrid, Alfonso XII, 3, E-28014 Madrid, Spain

Abstract

ABSTRACT Debris discs represent the last stages of planet formation and as such are expected to be depleted of primordial gas. None the less, in the last few years the presence of cold gas has been reported in ∼20 debris discs from far-infrared to (sub-)mm observations and hot gas has been observed in the optical spectra of debris discs for decades. While the origin of this gas is still uncertain, most pieces of evidence point towards a secondary origin, as a result of collisions and evaporation of small bodies in the disc. In this paper, we present ALMA observations aimed at the detection of CO gas in a sample of eight debris discs with optical gas detections. We report the detection of CO (12CO and 13CO) gas in HD 36546, the brightest and youngest disc in our sample, and provide upper limits to the presence of gas in the remaining seven discs.

Funder

NKFIH

AEI

FEDER

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

http://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stab2906/40534458/stab2906.pdf

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