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J/PASP/122/683      SAGE-Spec Spitzer legacy program         (Kemper+, 2010)

The SAGE-spec Spitzer Legacy program: the life cycle of dust and gas in the Large Magellanic cloud. Kemper F., Woods P.M., Antoniou V., Bernard J.-P., Blum R.D., Boyer M.L., Chan J., Chen C.-H.R., Cohen M., Dijkstra C., Engelbracht C., Galametz M., Galliano F., Gielen C., Gordon K.D., Gorjian V., Harris J., Hony S., Hora J.L., Indebetouw R., Jones O., Kawamura A., Lagadec E., Lawton B., Leisenring J.M., Madden S.C., Marengo M., Matsuura M., McDonald I., McGuire C., Meixner M., Mulia A.J., O'Halloran B., Oliveira J.M., Paladini R., Paradis D., Reach W.T., Rubin D., Sandstrom K., Sargent B.A., Sewilo M., Shiao B., Sloan G.C., Speck A.K., Srinivasan S., Szczerba R., Tielens A.G.G.M., van Aarle E., van Dyk S.D., van Loon J.T., Van Winckel H., Vijh U.P., Volk K., Whitney B.A., Wilkins A.N., Zijlstra A.A. <Publ. Astron. Soc. Pac., 122, 683-700 (2010)> =2010PASP..122..683K (SIMBAD/NED BibCode)
ADC_Keywords: Magellanic Clouds ; Interstellar medium 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 224.6h 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 21um 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. Description: The Spitzer SAGE-Spec program (PID: 40159) consists of 224.6hr of spectroscopic observations of targets in the LMC. The targets included point sources and extended regions, both of which were observed using the IRS low-resolution and MIPS SED modes. Observations were done in the IRS staring mode for 196 point sources, and 48 point sources were observed in MIPS SED mode. In addition, 10 extended regions were mapped in both the MIPS SED and IRS observing modes. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 64 894 Archival IRS staring mode observations within the SAGE-LMC footprint table3.dat 119 197 Point sources targeted with the IRS staring mode as part of the SAGE-Spec program table4.dat 52 197 Point sources targeted with the IRS staring mode as part of the SAGE-Spec program, Part II table6.dat 61 23 Positions and map sizes of extended region observations in the SAGE-Spec program
See also: II/305 : SAGE LMC and SMC IRAC Source Catalog (IPAC 2009) J/AJ/132/2268 : SAGE calibration stars (Meixner+, 2006) J/AJ/135/726 : Spitzer SAGE observations of LMC PNe (Hora+, 2008) J/AJ/136/18 : LMC SAGE. New candidate YSOs (Whitney+, 2008) http://data.spitzer.caltech.edu/popular/sage-spec/ : SAGE-SPEC files Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 8 I8 --- AOR AOR Key 10- 11 I2 h RAh IRS right ascension (J2000) requested 13- 14 I2 min RAm IRS right ascension (J2000) requested 16- 20 F5.2 s RAs IRS right ascension (J2000) requested 22 A1 --- DE- IRS declination sign (J2000) requested 23- 24 I2 deg DEd IRS declination (J2000) requested 26- 27 I2 arcmin DEm IRS declination (J2000) requested 29- 33 F5.2 arcsec DEs IRS declination (J2000) requested 35- 40 I6 --- PropID Proposal ID 43- 54 A12 --- PI PI name 57- 64 I8 --- AORMIPS ? Key MIPS SED
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq [1/197]+ Sequential number 5- 12 I8 --- AOR AOR Key 14- 15 I2 h RAh IRS right ascension (J2000) 17- 18 I2 min RAm IRS right ascension (J2000) 20- 24 F5.2 s RAs IRS right ascension (J2000) 26 A1 --- DE- IRS declination sign (J2000) 27- 28 I2 deg DEd IRS declination (J2000) 30- 31 I2 arcmin DEm IRS declination (J2000) 33- 37 F5.2 arcsec DEs IRS declination (J2000) 39- 46 A8 --- --- [SSTISAGE] 47- 68 A22 --- SSTISAGE SAGE designation, [M12]C JHHMMSS.ss+DDMMSS.s 70- 75 A6 --- Module Modules (SL, LL) 78-102 A25 --- Name Other name 103-110 I8 --- AORMIPS ? AOR Key MIPS SED 113-119 A7 --- Rem Remarks
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq [1/197]+ Sequential number 5- 9 F5.2 mag Jmag ?=- 2MASS J magnitude 11- 15 F5.2 mag Hmag ?=- 2MASS H magnitude 17- 21 F5.2 mag Kmag ?=- 2MASS Ks magnitude 23- 27 F5.2 mag [3.6] ?=- Spitzer/IRAC 3.6um magnitude 29- 33 F5.2 mag [4.5] ?=- Spitzer/IRAC 4.5um magnitude 35- 39 F5.2 mag [5.8] ?=- Spitzer/IRAC 5.8um magnitude 41- 45 F5.2 mag [8.0] ?=- Spitzer/IRAC 8.0um magnitude 47- 51 F5.2 mag [24] ?=- Spitzer/MIPS 24um magnitude 52 A1 --- n_[24] Note on [24] (1)
Note (1): MIPS-[24] from nearby LHa 120-N 82, which appears to be the main contributor to the LL spectrum.
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Reg Region 11 A1 --- n_Reg [abc] Note on Region (1) 13- 20 I8 --- AOR ?=- AOR Key IRS 22- 29 I8 --- AORMIPS ?=- AOR Key MIPS SED 31- 32 I2 h RAh ? Right ascension (J2000) 34- 35 I2 min RAm ? Right ascension (J2000) 37- 41 F5.2 s RAs ? Right ascension (J2000) 43 A1 --- DE- Declination sign (J2000) 44- 45 I2 deg DEd ? Declination (J2000) 47- 48 I2 arcmin DEm ? Declination (J2000) 50- 54 F5.2 arcsec DEs ? Declination (J2000) 55- 57 F3.1 arcmin Size1 Map size 58 A1 --- --- [x] 59- 61 F3.1 arcmin Size2 Map size
Note (1): Notes as follows: a = SSDR, SAGE-Spec diffuse region b = Nomenclature according to the catalog by Davies et al. (1976, Cat. VII/232) c = This region is covered by a set of 14 IRS and 2 MIPS SED AORs, all part of Spitzer PID 30653 (Indebetouw et al., 2009ApJ...694...84I)
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 24-Dec-2010
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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