The spitzer c2d survey of large, nearby, interstellar clouds. I. Chamaeleon II observed with MIPS

Kaisa E. Young; Paul M. Harvey; Timothy Y. Brooke; Nicholas Chapman; Jens Kauffmann; Frank Bertoldi; Shih Ping Lai; Juan Alcalá; Tyler L. Bourke; William Spiesman; Lori E. Allen; Geoffrey A. Blake; Neal J. Evans; David W. Koerner; Lee G. Mundy; Philip C. Myers; Deborah L. Padgett; Anandi Salinas; Anneila I. Sargent; Karl R. Stapelfeldt; Peter Teuben; Ewine F. Van Dishoeck; Zahed Wahhaj

doi:10.1086/430597

The spitzer c2d survey of large, nearby, interstellar clouds. I. Chamaeleon II observed with MIPS

Kaisa E. Young, Paul M. Harvey, Timothy Y. Brooke, Nicholas Chapman, Jens Kauffmann, Frank Bertoldi, Shih Ping Lai, Juan Alcalá, Tyler L. Bourke, William Spiesman, Lori E. Allen, Geoffrey A. Blake, Neal J. Evans, David W. Koerner, Lee G. Mundy, Philip C. Myers, Deborah L. Padgett, Anandi Salinas, Anneila I. Sargent, Karl R. StapelfeldtPeter Teuben, Ewine F. Van Dishoeck, Zahed Wahhaj

Astronomy and Planetary Sciences

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Abstract

We present maps of over 1.5 deg² in Chamaeleon (Cha) II at 24, 70, and 160 μm observed with the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) and a 1.2 deg² millimeter map from SIMBA on the Swedish-ESO Submillimetre Telescope (SEST). The c2d Spitzer Legacy Team's data reduction pipeline is described in detail. Over 1500 24 μm sources and 41 70 μm sources were detected by MIPS with fluxes greater than 10 σ. More than 40 potential YSOs are identified with a MIPS and 2MASS color-color diagram and by their spectral indices, including two previously unknown sources with 24 μm excesses. Our new SIMBA millimeter map of Cha II shows that only a small fraction of the gas is in compact structures with high column densities. The extended emission seen by MIPS is compared with previous CO observations. Some selected interesting sources, including two detected at 1 mm, associated with Cha II are discussed in detail, and their SEDs are presented. The classification of these sources using MIPS data is found to be consistent with that of previous studies.

Original language	English (US)
Pages (from-to)	283-297
Number of pages	15
Journal	Astrophysical Journal
Volume	628
Issue number	1 I
DOIs	https://doi.org/10.1086/430597
State	Published - Jul 20 2005

Keywords

ISM: clouds
Infrared: stars
Stars: formation

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/430597

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Young, K. E., Harvey, P. M., Brooke, T. Y., Chapman, N., Kauffmann, J., Bertoldi, F., Lai, S. P., Alcalá, J., Bourke, T. L., Spiesman, W., Allen, L. E., Blake, G. A., Evans, N. J., Koerner, D. W., Mundy, L. G., Myers, P. C., Padgett, D. L., Salinas, A., Sargent, A. I., ... Wahhaj, Z. (2005). The spitzer c2d survey of large, nearby, interstellar clouds. I. Chamaeleon II observed with MIPS. Astrophysical Journal, 628(1 I), 283-297. https://doi.org/10.1086/430597

Young, KE, Harvey, PM, Brooke, TY, Chapman, N, Kauffmann, J, Bertoldi, F, Lai, SP, Alcalá, J, Bourke, TL, Spiesman, W, Allen, LE, Blake, GA, Evans, NJ, Koerner, DW, Mundy, LG, Myers, PC, Padgett, DL, Salinas, A, Sargent, AI, Stapelfeldt, KR, Teuben, P, Van Dishoeck, EF & Wahhaj, Z 2005, 'The spitzer c2d survey of large, nearby, interstellar clouds. I. Chamaeleon II observed with MIPS', Astrophysical Journal, vol. 628, no. 1 I, pp. 283-297. https://doi.org/10.1086/430597

@article{18156b38d5034d00affdd9b0e52bb4e6,

title = "The spitzer c2d survey of large, nearby, interstellar clouds. I. Chamaeleon II observed with MIPS",

abstract = "We present maps of over 1.5 deg2 in Chamaeleon (Cha) II at 24, 70, and 160 μm observed with the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) and a 1.2 deg2 millimeter map from SIMBA on the Swedish-ESO Submillimetre Telescope (SEST). The c2d Spitzer Legacy Team's data reduction pipeline is described in detail. Over 1500 24 μm sources and 41 70 μm sources were detected by MIPS with fluxes greater than 10 σ. More than 40 potential YSOs are identified with a MIPS and 2MASS color-color diagram and by their spectral indices, including two previously unknown sources with 24 μm excesses. Our new SIMBA millimeter map of Cha II shows that only a small fraction of the gas is in compact structures with high column densities. The extended emission seen by MIPS is compared with previous CO observations. Some selected interesting sources, including two detected at 1 mm, associated with Cha II are discussed in detail, and their SEDs are presented. The classification of these sources using MIPS data is found to be consistent with that of previous studies.",

keywords = "ISM: clouds, Infrared: stars, Stars: formation",

author = "Young, {Kaisa E.} and Harvey, {Paul M.} and Brooke, {Timothy Y.} and Nicholas Chapman and Jens Kauffmann and Frank Bertoldi and Lai, {Shih Ping} and Juan Alcal{\'a} and Bourke, {Tyler L.} and William Spiesman and Allen, {Lori E.} and Blake, {Geoffrey A.} and Evans, {Neal J.} and Koerner, {David W.} and Mundy, {Lee G.} and Myers, {Philip C.} and Padgett, {Deborah L.} and Anandi Salinas and Sargent, {Anneila I.} and Stapelfeldt, {Karl R.} and Peter Teuben and {Van Dishoeck}, {Ewine F.} and Zahed Wahhaj",

year = "2005",

month = jul,

day = "20",

doi = "10.1086/430597",

language = "English (US)",

volume = "628",

pages = "283--297",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1 I",

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TY - JOUR

T1 - The spitzer c2d survey of large, nearby, interstellar clouds. I. Chamaeleon II observed with MIPS

AU - Young, Kaisa E.

AU - Harvey, Paul M.

AU - Brooke, Timothy Y.

AU - Chapman, Nicholas

AU - Kauffmann, Jens

AU - Bertoldi, Frank

AU - Lai, Shih Ping

AU - Alcalá, Juan

AU - Bourke, Tyler L.

AU - Spiesman, William

AU - Allen, Lori E.

AU - Blake, Geoffrey A.

AU - Evans, Neal J.

AU - Koerner, David W.

AU - Mundy, Lee G.

AU - Myers, Philip C.

AU - Padgett, Deborah L.

AU - Salinas, Anandi

AU - Sargent, Anneila I.

AU - Stapelfeldt, Karl R.

AU - Teuben, Peter

AU - Van Dishoeck, Ewine F.

AU - Wahhaj, Zahed

PY - 2005/7/20

Y1 - 2005/7/20

N2 - We present maps of over 1.5 deg2 in Chamaeleon (Cha) II at 24, 70, and 160 μm observed with the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) and a 1.2 deg2 millimeter map from SIMBA on the Swedish-ESO Submillimetre Telescope (SEST). The c2d Spitzer Legacy Team's data reduction pipeline is described in detail. Over 1500 24 μm sources and 41 70 μm sources were detected by MIPS with fluxes greater than 10 σ. More than 40 potential YSOs are identified with a MIPS and 2MASS color-color diagram and by their spectral indices, including two previously unknown sources with 24 μm excesses. Our new SIMBA millimeter map of Cha II shows that only a small fraction of the gas is in compact structures with high column densities. The extended emission seen by MIPS is compared with previous CO observations. Some selected interesting sources, including two detected at 1 mm, associated with Cha II are discussed in detail, and their SEDs are presented. The classification of these sources using MIPS data is found to be consistent with that of previous studies.

AB - We present maps of over 1.5 deg2 in Chamaeleon (Cha) II at 24, 70, and 160 μm observed with the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) and a 1.2 deg2 millimeter map from SIMBA on the Swedish-ESO Submillimetre Telescope (SEST). The c2d Spitzer Legacy Team's data reduction pipeline is described in detail. Over 1500 24 μm sources and 41 70 μm sources were detected by MIPS with fluxes greater than 10 σ. More than 40 potential YSOs are identified with a MIPS and 2MASS color-color diagram and by their spectral indices, including two previously unknown sources with 24 μm excesses. Our new SIMBA millimeter map of Cha II shows that only a small fraction of the gas is in compact structures with high column densities. The extended emission seen by MIPS is compared with previous CO observations. Some selected interesting sources, including two detected at 1 mm, associated with Cha II are discussed in detail, and their SEDs are presented. The classification of these sources using MIPS data is found to be consistent with that of previous studies.

KW - ISM: clouds

KW - Infrared: stars

KW - Stars: formation

UR - http://www.scopus.com/inward/record.url?scp=24644501757&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=24644501757&partnerID=8YFLogxK

U2 - 10.1086/430597

DO - 10.1086/430597

M3 - Article

AN - SCOPUS:24644501757

SN - 0004-637X

VL - 628

SP - 283

EP - 297

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 I

ER -

The spitzer c2d survey of large, nearby, interstellar clouds. I. Chamaeleon II observed with MIPS

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