Low-mass star formation in R Coronae Australis: Observations of organic molecules with the APEX telescope

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Standard

Low-mass star formation in R Coronae Australis : Observations of organic molecules with the APEX telescope. / Schöier, F. L.; Jørgensen, J. K.; Pontoppidan, K. M.; Lundgren, A. A.

I: Astronomy and Astrophysics, Bind 454, Nr. 2, 01.08.2006, s. L67-L70.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Schöier, FL, Jørgensen, JK, Pontoppidan, KM & Lundgren, AA 2006, 'Low-mass star formation in R Coronae Australis: Observations of organic molecules with the APEX telescope', Astronomy and Astrophysics, bind 454, nr. 2, s. L67-L70. https://doi.org/10.1051/0004-6361:20065334

APA

Schöier, F. L., Jørgensen, J. K., Pontoppidan, K. M., & Lundgren, A. A. (2006). Low-mass star formation in R Coronae Australis: Observations of organic molecules with the APEX telescope. Astronomy and Astrophysics, 454(2), L67-L70. https://doi.org/10.1051/0004-6361:20065334

Vancouver

Schöier FL, Jørgensen JK, Pontoppidan KM, Lundgren AA. Low-mass star formation in R Coronae Australis: Observations of organic molecules with the APEX telescope. Astronomy and Astrophysics. 2006 aug. 1;454(2):L67-L70. https://doi.org/10.1051/0004-6361:20065334

Author

Schöier, F. L. ; Jørgensen, J. K. ; Pontoppidan, K. M. ; Lundgren, A. A. / Low-mass star formation in R Coronae Australis : Observations of organic molecules with the APEX telescope. I: Astronomy and Astrophysics. 2006 ; Bind 454, Nr. 2. s. L67-L70.

Bibtex

@article{ef46e78978794a0491efd2959a15974d,
title = "Low-mass star formation in R Coronae Australis: Observations of organic molecules with the APEX telescope",
abstract = "This paper presents new APEX submillimetre molecular line observations of three low-mass protostars, IRS7A, IRS7B, and IRAS32, in the R Coronae Australis molecular cloud complex. The molecular excitation analysis is performed using a statistical equilibrium radiative transfer code. The derived beam averaged fractional abundances vary by less than a factor of two among the three sources, except those of H2CO and CH3OH, which show differences of about an order of magnitude. The molecular abundances are similar to those typically found in other star-forming regions in the Galaxy, such as the ρ Oph and Perseus molecular clouds. There is a marked difference in the kinetic temperatures derived for the protobinary source IRS7 from H2CO (≈40-60 K) and CH3OH (≈20 K), possibly indicating a difference in origin of the emission from these two molecules.",
keywords = "Astrochemistry, ISM: abundances, ISM: molecules, Stars: formation",
author = "Sch{\"o}ier, {F. L.} and J{\o}rgensen, {J. K.} and Pontoppidan, {K. M.} and Lundgren, {A. A.}",
year = "2006",
month = aug,
day = "1",
doi = "10.1051/0004-6361:20065334",
language = "English",
volume = "454",
pages = "L67--L70",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",
publisher = "E D P Sciences",
number = "2",

}

RIS

TY - JOUR

T1 - Low-mass star formation in R Coronae Australis

T2 - Observations of organic molecules with the APEX telescope

AU - Schöier, F. L.

AU - Jørgensen, J. K.

AU - Pontoppidan, K. M.

AU - Lundgren, A. A.

PY - 2006/8/1

Y1 - 2006/8/1

N2 - This paper presents new APEX submillimetre molecular line observations of three low-mass protostars, IRS7A, IRS7B, and IRAS32, in the R Coronae Australis molecular cloud complex. The molecular excitation analysis is performed using a statistical equilibrium radiative transfer code. The derived beam averaged fractional abundances vary by less than a factor of two among the three sources, except those of H2CO and CH3OH, which show differences of about an order of magnitude. The molecular abundances are similar to those typically found in other star-forming regions in the Galaxy, such as the ρ Oph and Perseus molecular clouds. There is a marked difference in the kinetic temperatures derived for the protobinary source IRS7 from H2CO (≈40-60 K) and CH3OH (≈20 K), possibly indicating a difference in origin of the emission from these two molecules.

AB - This paper presents new APEX submillimetre molecular line observations of three low-mass protostars, IRS7A, IRS7B, and IRAS32, in the R Coronae Australis molecular cloud complex. The molecular excitation analysis is performed using a statistical equilibrium radiative transfer code. The derived beam averaged fractional abundances vary by less than a factor of two among the three sources, except those of H2CO and CH3OH, which show differences of about an order of magnitude. The molecular abundances are similar to those typically found in other star-forming regions in the Galaxy, such as the ρ Oph and Perseus molecular clouds. There is a marked difference in the kinetic temperatures derived for the protobinary source IRS7 from H2CO (≈40-60 K) and CH3OH (≈20 K), possibly indicating a difference in origin of the emission from these two molecules.

KW - Astrochemistry

KW - ISM: abundances

KW - ISM: molecules

KW - Stars: formation

UR - http://www.scopus.com/inward/record.url?scp=33746377955&partnerID=8YFLogxK

U2 - 10.1051/0004-6361:20065334

DO - 10.1051/0004-6361:20065334

M3 - Journal article

AN - SCOPUS:33746377955

VL - 454

SP - L67-L70

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

IS - 2

ER -

ID: 234019633