H2CO and CH3OH abundances in the envelopes around low-mass protostars

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Standard

H2CO and CH3OH abundances in the envelopes around low-mass protostars. / Jørgensen, J. K.; Schöier, F. L.; Van Dishoeck, E. F.

I: Astronomy and Astrophysics, Bind 437, Nr. 2, 01.07.2005, s. 501-515.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Jørgensen, JK, Schöier, FL & Van Dishoeck, EF 2005, 'H2CO and CH3OH abundances in the envelopes around low-mass protostars', Astronomy and Astrophysics, bind 437, nr. 2, s. 501-515. https://doi.org/10.1051/0004-6361:20042060

APA

Jørgensen, J. K., Schöier, F. L., & Van Dishoeck, E. F. (2005). H2CO and CH3OH abundances in the envelopes around low-mass protostars. Astronomy and Astrophysics, 437(2), 501-515. https://doi.org/10.1051/0004-6361:20042060

Vancouver

Jørgensen JK, Schöier FL, Van Dishoeck EF. H2CO and CH3OH abundances in the envelopes around low-mass protostars. Astronomy and Astrophysics. 2005 jul. 1;437(2):501-515. https://doi.org/10.1051/0004-6361:20042060

Author

Jørgensen, J. K. ; Schöier, F. L. ; Van Dishoeck, E. F. / H2CO and CH3OH abundances in the envelopes around low-mass protostars. I: Astronomy and Astrophysics. 2005 ; Bind 437, Nr. 2. s. 501-515.

Bibtex

@article{270aeffb0ba74964b7cebb877a7fac21,
title = "H2CO and CH3OH abundances in the envelopes around low-mass protostars",
abstract = "Single dish studies of molecular abundances in the envelopes around a large sample of 18 low-mass pre and protostellar objects were presented. Typical grain mantle products and organic molecules, including H2CO, CH 3OH, and CH3CN were studied. It was found that with a few exceptions, all H2CO lines can be fit by constant abundances of 7x10-11-8x10-9 throughout the envelopes if ortho and para lines are considered independently. An improved fit to the data was obtained with a 'drop' abundance structure in which the abundance is typically few x 10-10 when the temperature is lower than the evaporation temperature.",
keywords = "Astrochemistry, ISM: abundances, ISM: molecules, Radiative transfer, Stars: formation",
author = "J{\o}rgensen, {J. K.} and Sch{\"o}ier, {F. L.} and {Van Dishoeck}, {E. F.}",
year = "2005",
month = jul,
day = "1",
doi = "10.1051/0004-6361:20042060",
language = "English",
volume = "437",
pages = "501--515",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",
publisher = "E D P Sciences",
number = "2",

}

RIS

TY - JOUR

T1 - H2CO and CH3OH abundances in the envelopes around low-mass protostars

AU - Jørgensen, J. K.

AU - Schöier, F. L.

AU - Van Dishoeck, E. F.

PY - 2005/7/1

Y1 - 2005/7/1

N2 - Single dish studies of molecular abundances in the envelopes around a large sample of 18 low-mass pre and protostellar objects were presented. Typical grain mantle products and organic molecules, including H2CO, CH 3OH, and CH3CN were studied. It was found that with a few exceptions, all H2CO lines can be fit by constant abundances of 7x10-11-8x10-9 throughout the envelopes if ortho and para lines are considered independently. An improved fit to the data was obtained with a 'drop' abundance structure in which the abundance is typically few x 10-10 when the temperature is lower than the evaporation temperature.

AB - Single dish studies of molecular abundances in the envelopes around a large sample of 18 low-mass pre and protostellar objects were presented. Typical grain mantle products and organic molecules, including H2CO, CH 3OH, and CH3CN were studied. It was found that with a few exceptions, all H2CO lines can be fit by constant abundances of 7x10-11-8x10-9 throughout the envelopes if ortho and para lines are considered independently. An improved fit to the data was obtained with a 'drop' abundance structure in which the abundance is typically few x 10-10 when the temperature is lower than the evaporation temperature.

KW - Astrochemistry

KW - ISM: abundances

KW - ISM: molecules

KW - Radiative transfer

KW - Stars: formation

UR - http://www.scopus.com/inward/record.url?scp=21644480725&partnerID=8YFLogxK

U2 - 10.1051/0004-6361:20042060

DO - 10.1051/0004-6361:20042060

M3 - Journal article

AN - SCOPUS:21644480725

VL - 437

SP - 501

EP - 515

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

IS - 2

ER -

ID: 234015782