The spitzer Gould Belt survey of large nearby interstellar clouds: Discovery of a dense embedded cluster in the Serpens-Aquila Rift

R. A. Gutermuth; T. L. Bourke; L. E. Allen; P. C. Myers; S. T. Megeath; B. C. Matthews; J. K. Jørgensen; J. Di Francesco; D. Ward-Thompson; Tracy L. Huard; T. Y. Brooke; M. M. Dunham; Lucas A. Cieza; Paul M. Harvey; N. L. Chapman

doi:10.1086/528710

The spitzer Gould Belt survey of large nearby interstellar clouds: Discovery of a dense embedded cluster in the Serpens-Aquila Rift

R. A. Gutermuth, T. L. Bourke, L. E. Allen, P. C. Myers, S. T. Megeath, B. C. Matthews, J. K. Jørgensen, J. Di Francesco, D. Ward-Thompson, Tracy L. Huard, T. Y. Brooke, M. M. Dunham, Lucas A. Cieza, Paul M. Harvey, N. L. Chapman

99 Citations (Scopus)

Abstract

We report the discovery of a nearby, embedded cluster of young stellar objects, associated filamentary infrared dark cloud, and 4.5 μm shock emission knots from outflows detected in Spitzer IRAC mid-infrared imaging of the Serpens-Aquila Rift obtained as part of the Spitzer Gould Belt Legacy Survey. We also present radial velocity measurements of the region from molecular line observations obtained with the Submillimeter Array (SMA) that suggest the cluster is comoving with the Serpens Main embedded cluster 3° to the north. We therefore assign it the same distance, 260 pc. The core of the new cluster, which we call Serpens South, is composed of an unusually large fraction of protostars (77%) at high mean surface density (>430 pc ^-2) and short median nearest neighbor spacing (3700 AU). We perform basic cluster structure characterization using nearest neighbor surface density mapping of the YSOs and compare our findings to other known clusters with equivalent analyses available in the literature.

Original language	English
Journal	Astrophysical Journal
Volume	673
Issue number	2 PART 2
Pages (from-to)	L151-L154
ISSN	0004-637X
DOIs	https://doi.org/10.1086/528710
Publication status	Published - 1 Jan 2008
Externally published	Yes

Keywords

Brown dwarfs
IRAS 18274-0205)
ISM: individual (IRAS 18275-0203
Stars: formation
Stars: low-mass

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10.1086/528710

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Gutermuth, R. A., Bourke, T. L., Allen, L. E., Myers, P. C., Megeath, S. T., Matthews, B. C., Jørgensen, J. K., Di Francesco, J., Ward-Thompson, D., Huard, T. L., Brooke, T. Y., Dunham, M. M., Cieza, L. A., Harvey, P. M., & Chapman, N. L. (2008). The spitzer Gould Belt survey of large nearby interstellar clouds: Discovery of a dense embedded cluster in the Serpens-Aquila Rift. Astrophysical Journal, 673(2 PART 2), L151-L154. https://doi.org/10.1086/528710

Gutermuth, RA, Bourke, TL, Allen, LE, Myers, PC, Megeath, ST, Matthews, BC, Jørgensen, JK, Di Francesco, J, Ward-Thompson, D, Huard, TL, Brooke, TY, Dunham, MM, Cieza, LA, Harvey, PM & Chapman, NL 2008, 'The spitzer Gould Belt survey of large nearby interstellar clouds: Discovery of a dense embedded cluster in the Serpens-Aquila Rift', Astrophysical Journal, vol. 673, no. 2 PART 2, pp. L151-L154. https://doi.org/10.1086/528710

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title = "The spitzer Gould Belt survey of large nearby interstellar clouds: Discovery of a dense embedded cluster in the Serpens-Aquila Rift",

abstract = "We report the discovery of a nearby, embedded cluster of young stellar objects, associated filamentary infrared dark cloud, and 4.5 μm shock emission knots from outflows detected in Spitzer IRAC mid-infrared imaging of the Serpens-Aquila Rift obtained as part of the Spitzer Gould Belt Legacy Survey. We also present radial velocity measurements of the region from molecular line observations obtained with the Submillimeter Array (SMA) that suggest the cluster is comoving with the Serpens Main embedded cluster 3° to the north. We therefore assign it the same distance, 260 pc. The core of the new cluster, which we call Serpens South, is composed of an unusually large fraction of protostars (77%) at high mean surface density (>430 pc -2) and short median nearest neighbor spacing (3700 AU). We perform basic cluster structure characterization using nearest neighbor surface density mapping of the YSOs and compare our findings to other known clusters with equivalent analyses available in the literature.",

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AU - Allen, L. E.

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AU - Megeath, S. T.

AU - Matthews, B. C.

AU - Jørgensen, J. K.

AU - Di Francesco, J.

AU - Ward-Thompson, D.

AU - Huard, Tracy L.

AU - Brooke, T. Y.

AU - Dunham, M. M.

AU - Cieza, Lucas A.

AU - Harvey, Paul M.

AU - Chapman, N. L.

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N2 - We report the discovery of a nearby, embedded cluster of young stellar objects, associated filamentary infrared dark cloud, and 4.5 μm shock emission knots from outflows detected in Spitzer IRAC mid-infrared imaging of the Serpens-Aquila Rift obtained as part of the Spitzer Gould Belt Legacy Survey. We also present radial velocity measurements of the region from molecular line observations obtained with the Submillimeter Array (SMA) that suggest the cluster is comoving with the Serpens Main embedded cluster 3° to the north. We therefore assign it the same distance, 260 pc. The core of the new cluster, which we call Serpens South, is composed of an unusually large fraction of protostars (77%) at high mean surface density (>430 pc -2) and short median nearest neighbor spacing (3700 AU). We perform basic cluster structure characterization using nearest neighbor surface density mapping of the YSOs and compare our findings to other known clusters with equivalent analyses available in the literature.

AB - We report the discovery of a nearby, embedded cluster of young stellar objects, associated filamentary infrared dark cloud, and 4.5 μm shock emission knots from outflows detected in Spitzer IRAC mid-infrared imaging of the Serpens-Aquila Rift obtained as part of the Spitzer Gould Belt Legacy Survey. We also present radial velocity measurements of the region from molecular line observations obtained with the Submillimeter Array (SMA) that suggest the cluster is comoving with the Serpens Main embedded cluster 3° to the north. We therefore assign it the same distance, 260 pc. The core of the new cluster, which we call Serpens South, is composed of an unusually large fraction of protostars (77%) at high mean surface density (>430 pc -2) and short median nearest neighbor spacing (3700 AU). We perform basic cluster structure characterization using nearest neighbor surface density mapping of the YSOs and compare our findings to other known clusters with equivalent analyses available in the literature.

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KW - IRAS 18274-0205)

KW - ISM: individual (IRAS 18275-0203

KW - Stars: formation

KW - Stars: low-mass

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JF - Astrophysical Journal

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The spitzer Gould Belt survey of large nearby interstellar clouds: Discovery of a dense embedded cluster in the Serpens-Aquila Rift

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Keywords

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