The dense cores and filamentary structure of the molecular cloud in Corona Australis: Herschel SPIRE and PACS observations from the Herschel Gould Belt Survey
The dense cores and filamentary structure of the molecular cloud in Corona Australis: Herschel SPIRE and PACS observations from the Herschel Gould Belt Survey
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澳大利亚日冕分子云的致密核心和丝状结构:来自赫歇尔古尔德带巡天的 Herschel SPIRE 和 PACS 观测
DOI:
10.1051/0004-6361/201730515
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发表时间:
2018
影响因子:
6.5
通讯作者:
Bresnahan D
中科院分区:
文献类型:
--
作者:
Bresnahan D
We present a catalogue of prestellar and starless cores within the Corona Australis molecular cloud using photometric data from theHerschelSpace Observatory. At a distance ofd~ 130 pc, Corona Australis is one of the closest star-forming regions.Herschelhas taken multi-wavelength data of Corona Australis with both the Spectral and Photometric Imaging Receiver (SPIRE) and the Photodetector Array Camera and Spectrometer (PACS) photometric cameras in a parallel mode with wavelengths in the range 70–500μm. A complete sample of starless and prestellar cores and embedded protostars is identified. Other results from theHerschelGould Belt Survey have shown spatial correlation between the distribution of dense cores and the filamentary structure within the molecular clouds. We go further and show correlations between the properties of these cores and their spatial distribution within the clouds, with a particular focus on the mass distribution of the dense cores with respect to their filamentary proximity. We find that only lower-mass starless cores form away from filaments, while all of the higher-mass prestellar cores form in close proximity to or directly on the filamentary structure. This result supports the paradigm that prestellar cores mostly form on filaments. We analyse the mass distribution across the molecular cloud, finding evidence that the region around the Coronet appears to be at a more dynamically advanced evolutionary stage in comparison to the rest of the clumps within the cloud.
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影响因子:
6.5
作者:
A. Sicilia-Aguilar;T. Henning;H. Linz;P. Andre';A. Stutz;C. Eiroa;G. White
通讯作者:
A. Sicilia-Aguilar;T. Henning;H. Linz;P. Andre';A. Stutz;C. Eiroa;G. White
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
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通讯作者:
Jet propulsion Laboratory
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
J. Lindberg;J. Jørgensen;Joel D. Green;G. Herczeg;O. Dionatos;N. Evans;A. Karska;S. Wampfler
通讯作者:
S. Wampfler
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
M. Juvela;V. Pelkonen;S. Porceddu
通讯作者:
S. Porceddu
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
J. W. Vilas;P. Myers;G. Fuller
通讯作者:
G. Fuller