J/ApJ/841/15 Synthetic JWST/MIRI fluxes and magnitudes (Jones+, 2017)
Probing the dusty stellar populations of the Local Volume galaxies with
JWST/MIRI.
Jones O.C., Meixner M., Justtanont K., Glasse A.
<Astrophys. J., 841, 15 (2017)>
=2017ApJ...841...15J 2017ApJ...841...15J
ADC_Keywords: Photometry, infrared
Keywords: galaxies: stellar content ; infrared: stars ; Local Group ;
Magellanic Clouds
Abstract:
The Mid-Infrared Instrument (MIRI) for the James Webb Space Telescope
(JWST) will revolutionize our understanding of infrared stellar
populations in the Local Volume. Using the rich Spitzer-IRS
spectroscopic data set and spectral classifications from the Surveying
the Agents of Galaxy Evolution (SAGE)-Spectroscopic survey of more
than 1000 objects in the Magellanic Clouds, the Grid of Red Supergiant
and Asymptotic Giant Branch Star Model (GRAMS; Sargent+
2011ApJ...728...93S 2011ApJ...728...93S and Srinivasan+ 2011, J/A+A/532/A54), and the grid
of YSO models by Robitaille+ (2006ApJS..167..256R 2006ApJS..167..256R), we calculate the
expected flux densities and colors in the MIRI broadband filters for
prominent infrared stellar populations. We use these fluxes to explore
the JWST/MIRI colors and magnitudes for composite stellar population
studies of Local Volume galaxies. MIRI color classification schemes
are presented; these diagrams provide a powerful means of identifying
young stellar objects, evolved stars, and extragalactic background
galaxies in Local Volume galaxies with a high degree of confidence.
Finally, we examine which filter combinations are best for selecting
populations of sources based on their JWST colors.
Description:
In order to predict fluxes and colors through the James Webb Space
Telescope (JWST) Mid-Infrared Instrument (MIRI) filters, we have made
use of Spitzer-IRS spectra, from the SAGE-Spec legacy survey of the
LMC (Kemper+ 2010, J/PASP/122/683). The IRS spectra cover a wavelength
range from 5.3 to 38um with spectral resolutions, R∼60-600. For all
sources in the LMC, we adopt a distance modulus of 18.49±0.05.
See section 2 for further explanations.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 116 879 MIRI fluxes for our sample
table4.dat 117 935 *Estimated MIRI magnitudes and uncertainties for
our LMC and background galaxy sample
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Note on table4.dat: Some values like "1-99.9907" in the online MRT table,
have been set to null value by CDS.
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See also:
J/ApJS/119/141 : Oxygen-rich dust shells IR spectral classif. (Sloan+ 1998)
J/A+AS/146/437 : IR spectra of oxygen-rich evolved stars (Speck+, 2000)
J/AJ/122/1844 : MSX and 2MASS cross-correlation in LMC (Egan+, 2001)
J/A+A/442/281 : Giants BVRIJHKL & Teff calibration (Kucinskas+, 2005)
J/AJ/132/2268 : SAGE calibration stars (Meixner+, 2006)
J/PASP/119/994 : MIPS 24um calibrators (Engelbracht+, 2007)
J/ApJ/671/1669 : Magellanic cloud PNe in the IR (Stanghellini+, 2007)
J/AJ/135/726 : Spitzer SAGE observations of LMC PNe (Hora+, 2008)
J/AJ/136/18 : LMC SAGE. New candidate YSOs (Whitney+, 2008)
J/A+A/503/913 : Synthetic spectrophotom. for C-rich giants (Aringer+, 2009)
J/A+A/506/1277 : Modelisation of MC C/O stars (Groenewegen+, 2009)
J/ApJS/184/172 : High- and intermediate-mass YSOs in the LMC (Gruendl+, 2009)
J/ApJ/699/150 : Spectral classif. of Massive YSOs in LMC (Seale+, 2009)
J/AJ/138/1661 : The Araucaria Project: RR Lyrae in SMC (Szewczyk+, 2009)
J/PASP/122/683 : SAGE-Spec Spitzer legacy program (Kemper+, 2010)
J/AJ/142/103 : Cool evolved stars in SAGE-SMC and SAGE-LMC (Boyer+, 2011)
J/A+A/530/A90 : Optically bright post-AGB pop. of LMC (van Aarle+, 2011)
J/MNRAS/411/1597 : LMC point source classification in SAGE-Spec (Woods+, 2011)
J/MNRAS/427/3209 : Galactic and MC O-AGBs and RSGs stars (Jones+, 2012)
J/ApJ/753/71 : Mass-loss return from LMC evolved stars. VI. (Riebel+, 2012)
J/AJ/146/62 : HERschel HERITAGE in Magellanic Clouds (Meixner+, 2013)
J/ApJ/778/15 : SAGE-SMC III. Young stellar objects (Sewilo+, 2013)
J/ApJ/771/111 : SMC dusty OB stars. I. Optical spectroscopy (Sheets+, 2013)
J/ApJS/212/18 : An atlas of UV-to-MIR galaxy SEDs (Brown+, 2014)
J/MNRAS/440/631 : IR photometry of LMC O-rich evolved stars (Jones+, 2014)
J/MNRAS/446/1584 : IRAC point sources for M32 (Jones+, 2015)
J/ApJ/811/145 : LMC & SMC evolved stars with Herschel (Jones+, 2015)
J/MNRAS/451/3504 : Classification of IRS sources in the SMC (Ruffle+, 2015)
J/AJ/149/11 : Spectra of candidate standard stars in mid-IR (Sloan+, 2015)
J/ApJ/826/44 : Spitzer/IRS obs. of Magellanic carbon stars (Sloan+, 2016)
J/MNRAS/457/2814 : SAGE SMC evolved stars candidates (Srinivasan+, 2016)
J/ApJ/834/185 : MSX sources in the SMC with Spitzer/IRS (Kraemer+, 2017)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Class SAGE-Spec classification type (G1)
7- 12 F6.1 mJy F770W ?=-99.9 JWST/MIRI synthetic F770W fluxes (1)
14- 18 F5.1 mJy e_F770W ?=-99.9 Uncertainty in F770W
20- 25 F6.1 mJy F1000W [0.5/4908]?=-99.9 JWST/MIRI synthetic F1000W
fluxes (1)
27- 31 F5.1 mJy e_F1000W [0.1/130]?=-99.9 Uncertainty in F1000W
33- 38 F6.1 mJy F1130W ?=-99.9 JWST/MIRI synthetic F1130W fluxes (1)
40- 44 F5.1 mJy e_F1130W ?=-99.9 Uncertainty in F1130W
46- 51 F6.1 mJy F1280W ?=-99.9 JWST/MIRI synthetic F1280W fluxes (1)
53- 57 F5.1 mJy e_F1280W ?=-99.9 Uncertainty in F1280W
59- 65 F7.1 mJy F1500W ?=-99.9 JWST/MIRI synthetic F1500W fluxes (1)
67- 71 F5.1 mJy e_F1500W ?=-99.9 Uncertainty in F1500W
73- 79 F7.1 mJy F1800W ?=-99.9 JWST/MIRI synthetic F1800W fluxes (1)
81- 86 F6.1 mJy e_F1800W ?=-99.9 Uncertainty in F1800W
88- 94 F7.1 mJy F2100W ?=-99.9 JWST/MIRI synthetic F2100W fluxes (1)
96-101 F6.1 mJy e_F2100W ?=-99.9 Uncertainty in F2100W
103-109 F7.1 mJy F2550W [0.4/52919]?=-99.9 JWST/MIRI synthetic F2550W
fluxes (1)
111-116 F6.1 mJy e_F2550W [0/2201]?=-99.9 Uncertainty in F2550W
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Note (1): MIRI fluxes calculated according to Equation 3 (section 2.2):
<Fν> = ∫(Fνν-1Rγdν)/∫(ν-1Rγdν)
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 A5 --- Class SAGE-Spec classification type (G1)
7- 12 F6.2 mag F770Wmag [2.7/13]?=-99.99 JWST/MIRI synthetic F770W
Vega magnitude (1)
14- 19 F6.2 mag e_F770Wmag [0.03/2.4]?=-99.99 Uncertainty in F770W (1)
21- 26 F6.2 mag F1000Wmag [2.2/12.2]?=-99.99 JWST/MIRI synthetic F1000W
Vega magnitude (1)
28- 33 F6.2 mag e_F1000Wmag [0.03/0.8]?=-99.99 Uncertainty in F1000W (1)
35- 40 F6.2 mag F1130Wmag [1.6/12.8]?=-99.99 JWST/MIRI synthetic F1130W
Vega magnitude (1)
42- 47 F6.2 mag e_F1130Wmag [0.03/1.6]?=-99.99 Uncertainty in F1130W (1)
49- 54 F6.2 mag F1280Wmag [1/11.8]?=-99.99 JWST/MIRI synthetic F1280W
Vega magnitude (1)
56- 61 F6.2 mag e_F1280Wmag [0.03/1]?=-99.99 Uncertainty in F1280W (1)
63- 68 F6.2 mag F1500Wmag [0.3/10.7]?=-99.99 JWST/MIRI synthetic
F1500W Vega magnitude (1)
70- 75 F6.2 mag e_F1500Wmag [0.03/0.6]?=-99.99 Uncertainty in F1500W (1)
77- 82 F6.2 mag F1800Wmag [-0.6/10.5]?=-99.99 JWST/MIRI synthetic F1800W
Vega magnitude (1)
84- 89 F6.2 mag e_F1800Wmag [0.03/2]?=-99.99 Uncertainty in F1800W (1)
91- 96 F6.2 mag F2100Wmag [-1.4/10.4]?=-99.99 JWST/MIRI synthetic F2100W
Vega magnitude (1)
98-103 F6.2 mag e_F2100Wmag [0.03/1.7]?=-99.99 Uncertainty in F2100W (1)
105-110 F6.2 mag F2550Wmag [-2.4/10.4]?=-99.99 JWST/MIRI synthetic F2550W
Vega magnitude (1)
112-117 F6.2 mag e_F2550Wmag [0.03/1.8]?=-99.99 Uncertainty in F2550W (1)
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Note (1): MIRI magnitudes calculated according to equation 5 (section 2.4):
[Mi]=-2.5log10(∫νMIRI,i/∫i,zero)
and the filter parameters given in Table 2 as:
------------------------------------------------------------------------
Filter Calc. λeff Δλ Est. Zero Point Lim. mag
µm µm Jy mag
------------------------------------------------------------------------
F560W --- 1.2 116.60 22.15
F770W 7.62 2.2 68.10 21.09
F1000W 9.94 2.0 40.71 19.69
F1130W 11.31 0.7 31.82 18.43
F1280W 12.79 2.4 24.76 18.67
F1500W 15.04 3.0 17.99 17.78
F1800W 17.96 3.0 12.46 16.39
F2100W 20.75 5.0 9.13 15.27
F2550W 25.32 4.0 6.18 13.43
------------------------------------------------------------------------
Lim. mag = The 10σ 10000s magnitude limits for the MIRI filters
given in Table 5.
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Global note:
Note (G1): Adopted SAGE-Spec classification type
(Woods+, 2011, J/MNRAS/411/1597) as follows:
CAGB = (C-AGB) Carbon-rich AGB stars (155 occurrences);
CPAGB = (C-PAGB) Carbon-rich post-AGB stars (22 occurrences);
CPN = (C-PN) Carbon-rich planetary nebulae (23 occurrences);
GAL = (GAL) Galaxy (135 occurrences);
HII = (HII) HII regions (172 occurrences);
OAGB = (O-AGB) Oxygen-rich AGB stars (94 occurrences);
OPAGB = (O-PAGB) Oxygen-rich post-AGB stars (14 occurrences);
OPN = (O-PN) Oxygen-rich planetary nebulae (33 occurrences);
RSG = (RSG) Red Supergiants (81 occurrences);
STAR = (STAR) Stellar photospheres (31 occurrences);
YSO1 = (YSO-1) Embedded Young Stellar Objects (47 occurrences);
YSO2 = (YSO-2) Young Stellar Objects (17 occurrences);
YSO3 = (YSO-3) Evolved Young Stellar Objects (78 occurrences);
YSO4 = (YSO-4) HAeBe Young Stellar Objects (24 occurrences).
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 12-Jan-2018