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- W2167791179 endingPage "89" @default.
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- W2167791179 abstract "We present the first high-angular resolution study of the MonR2 star-forming complex carried out with the Submillimeter Array at (sub-)millimeter wavelengths. We image the continuum and molecular line emission toward the young stellar objects in MonR2 at 0.85mm and 1.3mm, with resolutions ranging from 0.5 to ~3. While free-free emission dominates the IRS1 and IRS2 continuum, dust thermal emission prevails for IRS3 and IRS5, giving envelope masses of ~0.1-0.3 M_Sun. IRS5 splits into at least two sub-arcsecond scale sources, IRS5B and the more massive IRS5A. Our 12CO(2-1) images reveal 11 previously unknown molecular outflows in the MonR2 clump. Comparing these outflows with known IR sources in the IRS5 and IRS3 subclusters allows for tentative identification of driving stars. Line images of molecular species such as CH3CN or CH3OH show that, besides IRS3 (a well-known hot molecular core), IRS5 is also a chemically active source in the region. The gas excitation temperature derived from CH3CN lines toward IRS5 is 144 pm 15 K, indicating a deeply embedded protostar at the hot-core evolutionary stage. SED fitting of IRS5 gives a mass of ~7 M_Sun and a luminosity of 300 L_Sun for the central source. The derived physical properties of the CO outflows suggest that they contribute to the turbulent support of the MonR2 complex and to the gas velocity dispersion in the clump's center. The detection of a large number of CO outflows widespread across the region supports the competitive accretion scenario as origin of the MonR2 star cluster." @default.
- W2167791179 created "2016-06-24" @default.
- W2167791179 creator A5027271398 @default.
- W2167791179 creator A5033270642 @default.
- W2167791179 creator A5052773815 @default.
- W2167791179 creator A5086212188 @default.
- W2167791179 date "2015-04-21" @default.
- W2167791179 modified "2023-09-23" @default.
- W2167791179 title "SUBMILLIMETER ARRAY HIGH-ANGULAR RESOLUTION OBSERVATIONS OF THE MONOCEROS R2 STAR-FORMING CLUSTER" @default.
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- W2167791179 doi "https://doi.org/10.1088/0004-637x/803/2/89" @default.
- W2167791179 hasPublicationYear "2015" @default.
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