Identification of the simplest sugar-like molecule glycolaldehyde towards the hot molecular core G358.93-0.03 MM1

被引：10

作者：

Manna, Arijit ^{[1
]}

Pal, Sabyasachi ^{[1
]}

Viti, Serena ^{[2
,3
]}

Sinha, Sekhar ^{[1
]}

机构：

[1] Midnapore City Coll, Dept Phys & Astron, Paschim Medinipur 721129, W Bengal, India

[2] Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands

[3] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2023年 / 525卷 / 02期

基金：

欧洲研究理事会;

关键词：

astrochemistry; stars: formation; ISM: abundances; ISM: kinematics and dynamics; COMPLEX ORGANIC-MOLECULES; STAR-FORMING REGIONS; ETHYLENE-GLYCOL; INTERSTELLAR GLYCOLALDEHYDE; SAGITTARIUS B2(N); ACCRETION BURST; METHANOL MASER; HYDROGENATION; PROTOSTAR; ICES;

D O I：

10.1093/mnras/stad2185

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Glycolaldehyde (CH2OHCHO) is the simplest monosaccharide sugar in the interstellar medium, and it is directly involved in the origin of life via the 'RNA world' hypothesis. We present the first detection of CH2OHCHO towards the hot molecular core G358.93-0.03 MM1 using the Atacama Large Millimetre/Submillimetre Array (ALMA). The calculated column density of CH2OHCHO towards G358.93-0.03 MM1 is (1.52 +/- 0.9) x10(16) cm(-2) with an excitation temperature of 300 +/- 68.5 K. The derived fractional abundance of CH2OHCHO with respect to H-2 is (4.90 +/- 2.92) x10(-9), which is consistent with that estimated by existing two-phase warm-up chemical models. We discuss the possible formation pathways of CH2OHCHO within the context of hot molecular cores and hot corinos and find that CH2OHCHO is likely formed via the reactions of radical HCO and radical CH2OH on the grain-surface of G358.93-0.03 MM1.

引用

页码：2229 / 2240

页数：12

共 10 条

[1] Identification of interstellar cyanamide towards the hot molecular core G358.93-0.03 MM1
Manna, Arijit
Pal, Sabyasachi
ASTROPHYSICS AND SPACE SCIENCE, 2023, 368 (04)
[2] Detection of antifreeze molecule ethylene glycol in the hot molecular core G358.93-0.03 MM1
Manna, Arijit
Pal, Sabyasachi
Viti, Serena
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2024, 533 (01) : 1143 - 1155
[3] Detection of possible glycine precursor molecule methylamine towards the hot molecular core G358.93-0.03 MM1
Manna, Arijit
Pal, Sabyasachi
NEW ASTRONOMY, 2024, 109
[4] Identification of interstellar cyanamide towards the hot molecular core G358.93–0.03 MM1
Arijit Manna
Sabyasachi Pal
Astrophysics and Space Science, 2023, 368
[5] Observation of Complex Organic Molecules Containing Peptide-like Bonds Toward Hot Core G358.93-0.03 MM1
Manna, Arijit
Pal, Sabyasachi
RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2024, 24 (07)
[6] Observation of Complex Organic Molecules Containing Peptide-like Bonds Toward Hot Core G358.93–0.03 MM1
Arijit Manna
Sabyasachi Pal
ResearchinAstronomyandAstrophysics, 2024, 24 (07) : 184 - 192
[7] Detection and prebiotic chemistry of possible glycine precursor molecule methylenimine towards the hot molecular core G10.47+0.03
Manna, Arijit
Pal, Sabyasachi
INTERNATIONAL JOURNAL OF ASTROBIOLOGY, 2024, 23
[8] Detection of complex nitrogen-bearing molecule ethyl cyanide towards the hot molecular core G10.47+0.03
Manna, Arijit
Pal, Sabyasachi
ASTROPHYSICS AND SPACE SCIENCE, 2023, 368 (05)
[9] Detection of complex nitrogen-bearing molecule ethyl cyanide towards the hot molecular core G10.47 + 0.03
Arijit Manna
Sabyasachi Pal
Astrophysics and Space Science, 2023, 368
[10] Identification of Prebiotic Molecules Containing Peptide-like Bonds in a Hot Molecular Core, G10.47+0.03
Gorai, Prasanta
Bhat, Bratati
Sil, Milan
Mondal, Suman K.
Ghosh, Rana
Chakrabarti, Sandip K.
Das, Ankan
ASTROPHYSICAL JOURNAL, 2020, 895 (02):

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