High-Resolution Study of the Massive Star-Forming Region Iras 06061+2151

Trinidad, M. A.; Rodríguez, T.

doi:10.1088/0004-6256/140/6/1739

Cited by 2 publications

(4 citation statements)

References 24 publications

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“…A CO outflow was observed by Shepherd & Churchwell (1996a), while Snell et al (1988) did not detect any clear outflows toward this clump. Several centimeter continuum sources which are likely to be UC H ii regions have been detected (Kurtz et al 1994;Trinidad & Rodŕiguez 2010). Trinidad & Rodŕiguez (2010) suggested that these centimeter sources are associated with zeroage main-sequence (ZAMS) B stars.…”

Section: Discussionmentioning

confidence: 99%

“…Several centimeter continuum sources which are likely to be UC H ii regions have been detected (Kurtz et al 1994;Trinidad & Rodŕiguez 2010). Trinidad & Rodŕiguez (2010) suggested that these centimeter sources are associated with zeroage main-sequence (ZAMS) B stars.…”

Section: Discussionmentioning

confidence: 99%

“…There have been many studies of Clump 1a which is associated with a water maser (Kömpe et al 1989;Dunham et al 2010;Trinidad & Rodŕiguez …”

Section: Appendix Description Of the Individual Clumpsmentioning

confidence: 99%

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Molecular Clumps and Infrared Clusters in the S247, S252, and Bfs52 Regions

Shimoikura

Dobashi

Saito

et al. 2013

ApJ

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We present results of the observations carried out toward the S247, S252, and BFS52 H ii regions with various molecular lines using the 1.85 m radio telescope and the 45 m telescope at Nobeyama Radio Observatory. There are at least 11 young infrared clusters (IR clusters) within the observed region. We found that there are two velocity components in 12 CO (J = 2-1), and also that their spatial distributions show an anti-correlation. The IR clusters are located at their interfaces, suggesting that two distinct clouds with different velocities are colliding with each other, which may have induced the cluster formation. Based on 13 CO (J = 1-0) and C 18 O (J = 1-0) observations, we identified 16 clumps in and around the three H ii regions. Eleven of the clumps are associated with the IR clusters and the other five clumps are not associated with any known young stellar objects. We investigated variations in the velocity dispersions of the 16 clumps as a function of the distance from the center of the clusters or the clumps. Clumps with clusters tend to have velocity dispersions that increase with distance from the cluster center, while clumps without clusters show a flat velocity dispersion over the clump extents. A 12 CO outflow has been found in some of the clumps with IR clusters but not in the other clumps, supporting a strong relation of these clumps to the broader velocity dispersion region. We also estimated a mean star formation efficiency of ∼30% for the clumps with IR clusters in the three H ii regions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Molecular Clumps and Infrared Clusters in the S247, S252, and Bfs52 Regions

Shimoikura

Dobashi

Saito

et al. 2013

ApJ

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“…At least two of the nine UCHii regions for which Hill et al (2005) find no accompanying dust continuum emission have been extensively studied (G 188.770+1.074 and G 23.43-0.18 e.g. ; Kurtz, Churchwell & Wood 1994;Walsh et al 1998;Kim & Koo 2001;Trinidad & Rodríguez 2010) and their UCHii region nature is irrefutable. Both of these sources are located in complexes which contain methanol masers with distances measured through trigonometric parallax observations (G 188.95+0.89 and G 23.44-0.18;Reid et al 2009).…”

Section: Dust Emission From Young Starsmentioning

confidence: 99%

Confirmation of the exclusive association between 6.7-GHz methanol masers and high-mass star formation regions

Breen

Ellingsen

Contreras

et al. 2013

Monthly Notices of the Royal Astronomical Society

132

112

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Recently, a comparison between the locations of 6.7-GHz methanol masers and dust continuum emission has renewed speculation that these masers can be associated with evolved stars. The implication of such a scenario would be profound, especially for the interpretation of large surveys for 6.7-GHz masers, individual studies where high-mass star formation has been inferred from the presence of 6.7-GHz methanol masers, and for the pumping mechanisms of these masers. We have investigated the two instances where 6.7-GHz methanol masers have been explicitly suggested to be associated with evolved stars, and we find the first to be associated with a standard high-mass star formation region, and the second to be a spurious detection. We also find no evidence to suggest that the methanol maser action can be supported in the environments of evolved stars. We thereby confirm their exclusive association with high-mass star formation regions.

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High-Resolution Study of the Massive Star-Forming Region Iras 06061+2151

Cited by 2 publications

References 24 publications

Molecular Clumps and Infrared Clusters in the S247, S252, and Bfs52 Regions

Molecular Clumps and Infrared Clusters in the S247, S252, and Bfs52 Regions

Confirmation of the exclusive association between 6.7-GHz methanol masers and high-mass star formation regions

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