The SAGE-Spec Spitzer Legacy Program: The Life Cycle of Dust and Gas in the Large Magellanic Cloud
Creators
- Kemper, F.
- Woods, Paul M.
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Antoniou, V.
- Bernard, J.-P.
- Blum, R. D.
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Boyer, M. L.
- Chan, J.
- Chen, C.-H. R.
- Cohen, M.
- Dijkstra, C.
- Engelbracht, C.
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Galametz, M.
- Galliano, F.
- Gielen, C.
- Gordon, Karl D.
- Gorjian, V.
- Harris, J.
- Hony, S.
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Hora, J. L.
- Indebetouw, R.
- Jones, O.
- Kawamura, A.
- Lagadec, E.
- Lawton, B.
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Leisenring, J. M.
- Madden, S. C.
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Marengo, M.
- Matsuura, M.
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McDonald, I.
- McGuire, C.
- Meixner, M.
- Mulia, A. J.
- O'Halloran, B.
- Oliveira, J. M.
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Paladini, R.
- Paradis, D.
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Reach, W. T.
- Rubin, D.
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Sandstrom, K.
- Sargent, B. A.
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Sewilo, M.
- Shiao, B.
- Sloan, G. C.
- Speck, A. K.
- Srinivasan, S.
- Szczerba, R.
- Tielens, A. G. G. M.
- van Aarle, E.
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Van Dyk, S. D.
- van Loon, J. Th.
- Van Winckel, H.
- Vijh, Uma P.
- Volk, K.
- Whitney, B. A.
- Wilkins, A. N.
- Zijlstra, A. A.
Abstract
The SAGE-Spec Spitzer Legacy program is a spectroscopic follow-up to the SAGE-LMC photometric survey of the Large Magellanic Cloud carried out with the Spitzer Space Telescope. We present an overview of SAGE-Spec and some of its first results. The SAGE-Spec program aims to study the life cycle of gas and dust in the Large Magellanic Cloud and to provide information essential to the classification of the point sources observed in the earlier SAGE-LMC photometric survey. We acquired 224.6 h of observations using the infrared spectrograph and the spectral energy distribution (SED) mode of the Multiband Imaging Photometer for Spitzer. The SAGE-Spec data, along with archival Spitzer spectroscopy of objects in the Large Magellanic Cloud, are reduced and delivered to the community. We discuss the observing strategy, the specific data-reduction pipelines applied, and the dissemination of data products to the scientific community. Initial science results include the first detection of an extragalactic 21 μm feature toward an evolved star and elucidation of the nature of disks around RV Tauri stars in the Large Magellanic Cloud. Toward some young stars, ice features are observed in absorption. We also serendipitously observed a background quasar, at a redshift of z ≈ 0.14, which appears to be hostless.
Additional Information
© 2010 The Astronomical Society of the Pacific. Received 2010 January 12; accepted 2010 April 6; published 2010 May 19. M. Cohen thanks NASA for supporting his participation in SAGE-Spec through JPL grant 1320707 with UC Berkeley. B. Sargent, M. Meixner, and B. Shiao were supported for SAGE-Spec through JPL/SSC grant 1310534 with STScI. M. Meixner was additionally supported by NASA NAG5- 12595. R. Szczerba acknowledges support from grant N203 393334 (MNiSW).Attached Files
Published - Kemper2010p10325Publ_Astron_Soc_Pac.pdf
Files
Kemper2010p10325Publ_Astron_Soc_Pac.pdf
Additional details
Identifiers
- Eprint ID
- 18699
- Resolver ID
- CaltechAUTHORS:20100616-085239820
Funding
- NASA
- 1320707
- JPL/SSC
- 1310534
- NASA
- NAG5-12595
- Ministerstwo Nauki i Szkolnictwa Wyższego (MNiSW)
- N203393334
Dates
- Created
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2010-07-15Created from EPrint's datestamp field
- Updated
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2023-03-16Created from EPrint's last_modified field
Caltech Custom Metadata
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)