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   Articles with "iras 16293" as a keyword



History of the solar-type protostar IRAS 16293–2422 as told by the cyanopolyynes

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recommendations! Published in 2017 at "Astronomy and Astrophysics"

DOI: 10.1051/0004-6361/201629506

Abstract: Context. Cyanopolyynes are chains of carbon atoms with an atom of hydrogen and a CN group on either side. They are detected almost everywhere in the interstellar medium (ISM), as well as in comets. In… read more here.

Keywords: iras 16293; envelope; 16293 2422; abundance ... See more keywords

Linking interstellar and cometary O2 : a deep search for 16O18O in the solar-type protostar IRAS 16293-2422

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recommendations! Published in 2018 at "Astronomy and Astrophysics"

DOI: 10.1051/0004-6361/201833175

Abstract: Recent measurements carried out at comet 67P/Churyumov-Gerasimenko (67P) with the Rosetta probe revealed that molecular oxygen, O2, is the fourth most abundant molecule in comets. Models show that O2 is likely of primordial nature, coming… read more here.

Keywords: iras 16293; protostar iras; transition; deep search ... See more keywords

Carbon chain diversity in L1544 and IRAS 16293-2422: an astrochemical pathfinder study for the SKAO

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recommendations! Published in 2025 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf1941

Abstract: Astrochemical observations have revealed a surprisingly high level of chemical complexity, including long carbon chains, in the earliest stages of Sun-like star formation. The origin of these species and whether they undergo further growth, possibly… read more here.

Keywords: chemical network; iras 16293; carbon chain; 16293 2422 ... See more keywords

First ALMA maps of HCO, an important precursor of complex organic molecules, towards IRAS 16293–2422

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recommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/sty3078

Abstract: The formyl radical HCO has been proposed as the basic precursor of many complex organic molecules such as methanol (CH$_3$OH) or glycolaldehyde (CH$_2$OHCHO). Using ALMA, we have mapped, for the first time at high angular… read more here.

Keywords: iras 16293; 16293 2422; hco; complex organic ... See more keywords
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Detection of HOCO+ in the protostar IRAS 16293−2422

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recommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/sty703

Abstract: The protonated form of CO2, HOCO+, is assumed to be an indirect tracer of CO2 in the millimeter/submillimeter regime since CO2 lacks a permanent dipole moment. Here, we report the detection of two rotational emission… read more here.

Keywords: iras 16293; detection hoco; hoco; 16293 2422 ... See more keywords

Composite powerful short flare of water maser emission in IRAS 16293-2422

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recommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society: Letters"

DOI: 10.1093/mnrasl/slab096

Abstract: Using long-term monitoring data of water-vapour masers, here we examine a composite powerful flare of extremely short duration (∼12 d), which occurred in IRAS 16293-2422. The most powerful part of the flare was located on top… read more here.

Keywords: iras 16293; maser; water; composite powerful ... See more keywords