A 2.2 micron survey in the L1630 molecular cloud

Elizabeth A. Lada; D. L. Depoy; Neal J. Evans; Ian Gatley

doi:10.1086/169881

A 2.2 micron survey in the L1630 molecular cloud

Elizabeth A. Lada, D. L. Depoy, Neal J. Evans, Ian Gatley

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240 Scopus citations

Abstract

A 2.2 μm survey of a significant portion of the L1630 molecular cloud was carried out using the NOAO infrared array camera on the Kitt Peak 1.3 m telescope. This survey is estimated to be complete to 13th magnitude at K, which corresponds to a main-sequence star of ∼0.6 M_⊙. Therefore this survey has provided a sensitive census of the young stellar objects within this molecular cloud. As a result, 912 sources having m_K < 13.0 have been detected. We estimate that 50% of these sources are associated with the molecular cloud. These sources are not distributed uniformly throughout the surveyed region but rather appear grouped or clustered. In fact, four embedded infrared clusters were identified. These clusters contain at least 58% but possibly as much as 96% of the total number of sources associated with this molecular cloud suggesting that the dominant mode of star formation in this region is in clusters.

Original language	English (US)
Pages (from-to)	171-182
Number of pages	12
Journal	Astrophysical Journal
Volume	371
Issue number	1
DOIs	https://doi.org/10.1086/169881
State	Published - Apr 10 1991
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Infrared: sources
Interstellar: molecules
Nebulae: individual (L1630, Orion B)

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10.1086/169881

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title = "A 2.2 micron survey in the L1630 molecular cloud",

abstract = "A 2.2 μm survey of a significant portion of the L1630 molecular cloud was carried out using the NOAO infrared array camera on the Kitt Peak 1.3 m telescope. This survey is estimated to be complete to 13th magnitude at K, which corresponds to a main-sequence star of ∼0.6 M⊙. Therefore this survey has provided a sensitive census of the young stellar objects within this molecular cloud. As a result, 912 sources having mK < 13.0 have been detected. We estimate that 50% of these sources are associated with the molecular cloud. These sources are not distributed uniformly throughout the surveyed region but rather appear grouped or clustered. In fact, four embedded infrared clusters were identified. These clusters contain at least 58% but possibly as much as 96% of the total number of sources associated with this molecular cloud suggesting that the dominant mode of star formation in this region is in clusters.",

keywords = "Infrared: sources, Interstellar: molecules, Nebulae: individual (L1630, Orion B)",

author = "Lada, {Elizabeth A.} and Depoy, {D. L.} and Evans, {Neal J.} and Ian Gatley",

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T1 - A 2.2 micron survey in the L1630 molecular cloud

AU - Lada, Elizabeth A.

AU - Depoy, D. L.

AU - Evans, Neal J.

AU - Gatley, Ian

PY - 1991/4/10

Y1 - 1991/4/10

N2 - A 2.2 μm survey of a significant portion of the L1630 molecular cloud was carried out using the NOAO infrared array camera on the Kitt Peak 1.3 m telescope. This survey is estimated to be complete to 13th magnitude at K, which corresponds to a main-sequence star of ∼0.6 M⊙. Therefore this survey has provided a sensitive census of the young stellar objects within this molecular cloud. As a result, 912 sources having mK < 13.0 have been detected. We estimate that 50% of these sources are associated with the molecular cloud. These sources are not distributed uniformly throughout the surveyed region but rather appear grouped or clustered. In fact, four embedded infrared clusters were identified. These clusters contain at least 58% but possibly as much as 96% of the total number of sources associated with this molecular cloud suggesting that the dominant mode of star formation in this region is in clusters.

AB - A 2.2 μm survey of a significant portion of the L1630 molecular cloud was carried out using the NOAO infrared array camera on the Kitt Peak 1.3 m telescope. This survey is estimated to be complete to 13th magnitude at K, which corresponds to a main-sequence star of ∼0.6 M⊙. Therefore this survey has provided a sensitive census of the young stellar objects within this molecular cloud. As a result, 912 sources having mK < 13.0 have been detected. We estimate that 50% of these sources are associated with the molecular cloud. These sources are not distributed uniformly throughout the surveyed region but rather appear grouped or clustered. In fact, four embedded infrared clusters were identified. These clusters contain at least 58% but possibly as much as 96% of the total number of sources associated with this molecular cloud suggesting that the dominant mode of star formation in this region is in clusters.

KW - Infrared: sources

KW - Interstellar: molecules

KW - Nebulae: individual (L1630, Orion B)

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A 2.2 micron survey in the L1630 molecular cloud

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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