J/MNRAS/470/3250 SAGE LMC point-sources classification (Jones+, 2017)
The SAGE-Spec Spitzer Legacy program: the life-cycle of dust and gas in the
Large Magellanic Cloud. Point source classification - III.
Jones O.C., Woods P.M., Kemper F., Kraemer K.E., Sloan G.C., Srinivasan S.,
Oliveira J.M., Van Loon J.T., Boyer M.L., Sargent B.A., Mcdonald I.,
Meixner M., Zijlstra A.A., Ruffle P.M.E., Lagadec E., Pauly T., Sewilo M.,
Clayton G.C., Volk K.
<Mon. Not. R. Astron. Soc., 470, 3250-3282 (2017)>
=2017MNRAS.470.3250J 2017MNRAS.470.3250J (SIMBAD/NED BibCode)
ADC_Keywords: Magellanic Clouds ; Infrared sources ; YSOs ; H II regions ;
Photometry
Keywords: techniques: spectroscopic; surveys - galaxies: individual: LMC -
Magellanic Clouds - infrared: galaxies - infrared: stars
Abstract:
The Infrared Spectrograph (IRS) on the Spitzer Space Telescope
observed nearly 800 point sources in the Large Magellanic Cloud (LMC),
taking over 1000 spectra. 197 of these targets were observed as part
of the SAGE-Spec Spitzer Legacy program; the remainder are from a
variety of different calibration, guaranteed time and open time
projects. We classify these point sources into types according to
their infrared spectral features, continuum and spectral energy
distribution shape, bolometric luminosity, cluster membership and
variability information, using a decision-tree classification method.
We then refine the classification using supplementary information from
the astrophysical literature. We find that our IRS sample is comprised
substantially of YSO and HII regions, post-main-sequence low-mass
stars: (post-)asymptotic giant branch stars and planetary nebulae and
massive stars including several rare evolutionary types. Two supernova
remnants, a nova and several background galaxies were also observed.
We use these classifications to improve our understanding of the
stellar populations in the LMC, study the composition and
characteristics of dust species in a variety of LMC objects, and to
verify the photometric classification methods used by mid-IR surveys.
We discover that some widely used catalogues of objects contain
considerable contamination and others are missing sources in our
sample.
Description:
Classification table plus ancellary data and photometry of Spitzer-IRS
spectra in the LMC from Sage-Spec.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 946 862 IRS staring-mode targets in the LMC
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See also:
II/305 : SAGE LMC and SMC IRAC Source Catalog (IPAC 2009)
J/AJ/136/18 : LMC SAGE. New candidate YSOs (Whitney+, 2008)
J/AJ/137/3139 : LMC SAGE. New variable evolved stars and YSOs (Vijh+, 2009)
J/MNRAS/411/1597 : LMC point source classification in SAGE-Spec (Woods+, 2011)
J/MNRAS/451/3504 : Classification of IRS sources in the SMC (Ruffle+, 2015)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ObjId Object identification number of the
target (OBJID)
5- 8 I4 --- SSId Unique spectral identification number (SSID)
10- 32 A23 --- NAME Name of point source targeted (COMMON_NAME)
34- 41 A8 --- SpClass Source classification determined in this paper
(SAGESPECCLASS)
43- 49 F7.4 deg RAdeg Right ascension of extracted spectrum (J2000)
(RA_SPEC)
51- 58 F8.4 deg DEdeg Declination of extracted spectrum (J2000)
(DEC_SPEC)
60- 67 I8 --- AOR Spitzer Astronomical Observation Request (AOR)
69- 73 I5 --- PID Observing program identification numbers (PID)
75- 86 A12 --- PI Last name of the PI of Spitzer program (PI)
88- 95 F8.4 mag Umag ?=-99 Matching MCPS U magnitude (MAGU)
97-104 F8.4 mag e_Umag ?=-99 Matching MCPS U magnitude error (DMAGU)
106-113 F8.4 mag Bmag ?=-99 Matching MCPS B magnitude (MAGB)
115-122 F8.4 mag e_Bmag ?=-99 Matching MCPS B magnitude error (DMAGB)
124-131 F8.4 mag Vmag ?=-99 Matching MCPS V magnitude (MAGV)
133-142 E10.4 mag e_Vmag ?=-99 Matching MCPS V magnitude error (DMAGV)
144-151 F8.4 mag Imag ?=-99 Matching MCPS I magnitude (MAGI)
153-160 F8.4 mag e_Imag ?=-99 Matching MCPS I magnitude error (DMAGI)
162-179 A18 --- OGLE3ID Matching OGLE-III source ID (OGLE3ID)
181-188 F8.4 mag <Vmag> ?=-99 OGLE-III mean V magnitude (OGLE3MEAN_V)
190-197 F8.4 mag <Imag> ?=-99 OGLE-III mean I magnitude (OGLE3MEAN_I)
199-206 F8.4 mag IAmp ?=-99 OGLE-III I-band amplitude (OGLE3AMP_I)
208-217 F10.4 d Per ?=-99 OGLE-III period (OGLE3PERIOD)
219-241 A23 --- 2MASS Matching 2MASS (6X) designation, Skrutskie et
al. (2006, Cat. VII/233) (TMASS_DESIGNATION)
243-250 F8.4 mag J2mag ?=-99 Matching 2MASS (6X) J magnitude (MAGJ)
252-259 F8.4 mag e_J2mag ?=-99 Error on J2mag (DMAGJ)
261-268 F8.4 mag H2mag ?=-99 Matching 2MASS (6X) H magnitude (MAGH)
270-277 F8.4 mag e_H2mag ?=-99 Error on H2mag (DMAGH)
279-286 F8.4 mag Ks2mag ?=-99 Matching 2MASS (6X) Ks magnitude (MAGK)
288-295 F8.4 mag e_Ks2mag ?=-99 Error on Ks2mag (DMAGK)
297-312 A16 --- IRSF Matching IRSF designation, Kato et al.
(2007, Cat. II/288) (IRSF_DESIGNATION)
314-321 F8.4 mag Jmag ?=-99 Matching IRSF J magnitude (IRSF_JM)
323-330 F8.4 mag e_Jmag ?=-99 Error on Jmag (IRSF_JME)
332-339 F8.4 mag Hmag ?=-99 Matching IRSF H magnitude (IRSF_HM)
341-348 F8.4 mag e_Hmag ?=-99 Error on Hmag (IRSF_HME)
350-357 F8.4 mag Ksmag ?=-99 Matching IRSF Ks magnitude (IRSF_KM)
359-366 F8.4 mag e_Ksmag ?=-99 Error on Ksmag (IRSF_KME)
368-397 A30 --- IRAC Matching SAGE-LMC IRAC Archive designation.
(IPAC, 2009, Cat. II/305) (IRAC_DES)
399-406 F8.4 mag [3.6] ?=-99 Matching SAGE-LMC IRAC Archive mean
magnitude (MAG3_6)
408-415 F8.4 mag e_[3.6] ?=-99 Error on [3.6] (DMAG3_6)
417-424 F8.4 mag [4.5] ?=-99 Matching SAGE-LMC IRAC Archive mean
magnitude (MAG4_5)
426-433 F8.4 mag e_[4.5] ?=-99 Error on [4.5] (DMAG4_5)
435-442 F8.4 mag [5.8] ?=-99 Matching SAGE-LMC IRAC Archive mean
magnitude (MAG5_8)
444-451 F8.4 mag e_[5.8] ?=-99 Error on [5.8] (DMAG5_8)
453-460 F8.4 mag [8.0] ?=-99 Matching SAGE-LMC IRAC Archive mean
magnitude (MAG8_0)
462-469 F8.4 mag e_[8.0] ?=-99 Error on [8.0] (DMAG8_0)
471-480 E10.4 Jy F3.6 ?=-99 Matching SAGE-LMC IRAC Archive mean
flux (FLUX3_6)
482-491 E10.4 Jy e_F3.6 ?=-99 Error on F3.6 (DFLUX3_6)
493-502 E10.4 Jy F4.5 ?=-99 Matching SAGE-LMC IRAC Archive mean
flux (FLUX4_5)
504-513 E10.4 Jy e_F4.5 ?=-99 Error on F4.5 (DFLUX4_5)
515-522 F8.4 Jy F5.8 ?=-99 Matching SAGE-LMC IRAC Archive mean
flux (FLUX5_8)
524-533 E10.4 Jy e_F5.8 ?=-99 Error on F5.8 (DFLUX5_8)
535-542 F8.4 Jy F8.0 ?=-99 Matching SAGE-LMC IRAC Archive mean
flux (FLUX8_0)
544-553 E10.4 Jy e_F8.0 ?=-99 Error on F8.0 (DFLUX8_0)
555-584 A30 --- MIPS24 Matching MIPS24 Catalog designation
(MIPS24_DES)
586-593 F8.4 mag [24] ?=-99 Matching MIPS24 Catalog mean magnitude
(MAG24)
595-602 F8.4 mag e_[24] ?=-99 Error on [24] (DMAG24)
604-611 F8.4 Jy F24 ?=-99 Matching MIPS24 Catalog mean flux
(FLUX24)
613-622 E10.4 Jy e_F24 ?=-99 Error on F24 (DFLUX24)
624-654 A31 --- MIPS70 Matching MIPS70 Catalog designation
(MIPS70_DES)
656-663 F8.4 mag [70] ?=-99 Matching MIPS70 Catalog mean magnitude
(MAG70)
665-672 F8.4 mag e_[70] ?=-99 Error on [70] (DMAG70)
674-684 F11.4 Jy F70 ?=-99 Matching MIPS70 Catalog mean flux
(FLUX70)
686-695 F10.4 Jy e_F70 ?=-99 Error on F70 (DFLUX70)
697-727 A31 --- MIPS160 Matching MIPS160 Catalog designation
(MIPS160_DES)
729-736 F8.4 mag [160] ?=-99 Matching MIPS160 Catalog mean magnitude
(MAG160)
738-745 F8.4 mag e_[160] ?=-99 Error on [160] (DMAG160)
747-757 F11.4 Jy F160 ?=-99 Matching MIPS160 Catalog mean flux
(FLUX160)
759-767 F9.4 Jy e_F160 ?=-99 Error on F160 (DFLUX160)
769-788 A20 --- HERSCHEL Matching HERITAGE Catalog designation,
Meixner et al., 2013, Cat. J/AJ/146/62)
(HERSCHEL_DES)
790-797 F8.4 deg RAHdeg ?=-99 Matching HERITAGE Catalog right
ascension (J2000) (HERSCHEL_RA)
799-806 F8.4 deg DEHdeg ?=-99 Matching HERITAGE Catalog declination
(J2000) (HERSCHEL_DEC)
808-818 F11.4 Jy F100P ?=-99 Matching HERITAGE Catalog PACS flux
(PACS_F100)
820-829 F10.4 Jy e_F100P ?=-99 Error on F100P (PACS_DF100)
831-841 F11.4 Jy F160P ?=-99 Matching HERITAGE Catalog PACS flux
(PACS_F160)
843-852 F10.4 Jy e_F160P ?=-99 Error on F160P (PACS_DF160)
854-864 F11.4 Jy F250S ?=-99 Matching HERITAGE Catalog SPIRE flux
(SPIRE_F250)
866-875 F10.4 Jy e_F250S ?=-99 Error on F250S (SPIRE_DF250)
877-887 F11.4 Jy F350S ?=-99 Matching HERITAGE Catalog SPIRE flux
(SPIRE_F350)
889-897 F9.4 Jy e_F350S ?=-99 Error on F350S (SPIRE_DF350)
899-908 F10.4 Jy F500S ?=-99 Matching HERITAGE Catalog SPIRE flux
(SPIRE_F500)
910-918 F9.4 Jy e_F500S ?=-99 Error on F500S (SPIRE_DF500)
920-927 F8.4 mag mbolph ?=-99 Bolometric magnitude from interpolation
of NIR and MIR photometry (MBOL_PHOT)
929-936 F8.4 mag mbolMcD ?=-99 Bolometric magnitude from SED fits
(MBOL_MCD) (1)
938-944 F7.0 K TeffMcD ?=-99 Effective temperature from SED fits
(TEFF_MCD) (1)
946 I1 --- Flag [0/1] Foreground flag, set to 1 if foreground
source (FGFLAG)
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Note (1): of McDonald et al. (2009MNRAS.394..831M 2009MNRAS.394..831M, 2012, Cat. J/MNRAS/427/2647).
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Acknowledgements:
Olivia Jones, olivia.charlotte.jones(at)gmail.com
References:
Woods et al., Paper I 2011MNRAS.411.1597W 2011MNRAS.411.1597W, Cat. J/MNRAS/411/1597
Ruffle et al., Paper II 2015MNRAS.451.3504R 2015MNRAS.451.3504R, Cat. J/MNRAS/451/3504
(End) Patricia Vannier [CDS] 11-Oct-2017