J/A+A/554/A33 VMC Survey. VII. 30 Doradus reddening map (Tatton+, 2013)
The VMC survey
VII. Reddening map of the 30 Doradus field and the structure of the cold
interstellar medium
Tatton B.L., van Loon J.T., Cioni M.-R., Clementini G., Emerson J.P.,
Girardi L., de Grijs R., Groenewegen M.A.T., Gullieuszik M.,
Ivanov V.D., Moretti M.I., Ripepi V., Rubele S.
<Astron. Astrophys. 554, A33 (2013)>
=2013A&A...554A..33T 2013A&A...554A..33T
ADC_Keywords: Extinction ; Magellanic Clouds
Keywords: Magellanic Clouds - Hertzsprung-Russell and C-M diagrams -
Galaxies: structure - dust, extinction - Stars: horizontal-branch -
ISM: structure
Abstract:
In this paper we present a detailed reddening map of the central 30
Doradus region of the Large Magellanic Cloud; for both community use
and as a test of the methods used for future use on a wider area. The
reddening, a measurement of dust extinction, acts as a tracer of the
interstellar medium (ISM).
Near-infrared (NIR) photometry of the red clump stars is used to
measure reddening as their fixed luminosity and intermediate age make
extinction the dominant cause of colour and magnitude variance. The
star formation history derived previously from these data is used to
produce an intrinsic colour to act as a zero point in converting
colour to reddening values E(J-Ks) which are subsequently converted to
visual extinction AV.
Presented is a dust map for the 30 Doradus field in both AV and
E(J-Ks). This map samples a region of 1°x1.5°, containing
∼1.5x105 red clump stars which probe reddening up to AV∼6mag. We
compare our map with maps from the literature, including optical
extinction maps and radio, mid- and far-infrared maps of atomic
hydrogen and dust emission. Through estimation of column density we
locate molecular clouds.
Description:
table4.dat contains the full reddening catalogue described (and shown)
in Section 5.1.
rc_030.fits, rc_1.fits and rc_5.fits contain cumulative probability
maps described in Section 5.1.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 126 150328 Reddening values for 150328 red clump stars and
regions surrounding them
list.dat 52 3 List of fits maps: cumulative probability data
cube of 16 slices where each slice covers
extinction range E(J-Ks)=0.06875mag
fits/* . 3 Individual cumulative probability fits maps
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See also:
J/A+A/537/A105 : Modelisation of AGB stars in the LMC (Gullieuszik+, 2012)
J/ApJS/197/16 : CO observations of LMC molecular clouds (MAGMA). (Wong+, 2011)
J/ApJS/178/56 : CO observations of LMC Giant Molecular clouds (Fukui+, 2008)
J/AJ/132/2268 : SAGE calibration stars (Meixner+, 2006)
J/A+A/438/663 : JHKL photometry of 30 Dor (Maercker+, 2005)
J/A+A/341/98 : The ionizing cluster of 30 Doradus. I. (Selman+ 1999)
J/ApJ/466/254 : NIR Imaging of R136 in 30 Dor (Brandl+ 1996)
J/ApJ/413/604 : 30 Dor (Hill+, 1993)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 F7.4 deg RAdeg Right Ascension J2000 (degrees)
9- 16 F8.4 deg DEdeg Declination J2000 (degrees)
18- 24 F7.4 mag E(J-Ks) Extinction expressed in (J-Ks) mag (1)
26- 27 I2 --- N.5 Number of sources within 30 arcsec
29- 34 F6.4 mag sig.5 Standard deviation of sources within 30" (1)
36- 42 F7.4 mag mean.5 Average extinction of sources within 30" (1)
44- 50 F7.4 mag med.5 Median extinction of sources within 30" (1)
52- 58 F7.4 mag max.5 Maximum extinction of sources within 30" (1)
60- 61 I2 --- N1 Number of sources within 1 arcmin
63- 68 F6.4 mag sig1 Standard deviation of sources within 1' (1)
70- 76 F7.4 mag mean1 Average extinction of sources within 1' (1)
78- 84 F7.4 mag med1 Median extinction of sources within 1' (1)
86- 92 F7.4 mag max1 Maximum extinction of sources within 1' (1)
94- 96 I3 --- N5 Number of sources within 5 arcmin
98-103 F6.4 mag sig5 Standard deviation of sources within 5' (1)
105-111 F7.4 mag mean5 Average extinction of sources within 5' (1)
113-119 F7.4 mag med5 Median extinction of sources within 5' (1)
121-126 F6.4 mag max5 Maximum extinction of sources within 5' (1)
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Note (1): Using intrinsic colour (J-Ks)0=0.495mag.
To convert E(J-Ks) into AV divide by 0.16237.
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 F9.5 deg RAdeg Right Ascension of center (J2000)
10- 18 F9.5 deg DEdeg Declination of center (J2000)
20- 22 I3 arcsec/pix Scale [30/300] Scale of the image
24- 26 I3 pix Nx Number of pixels along X-axis
27 A1 --- --- [x]
28- 30 I3 pix Ny Number of pixels along Y-axis
31 A1 --- --- [x]
32- 33 I2 --- Nz [16] Number of pixels along E(J-Ks) (1)
35- 37 F3.1 arcmin Ax Area covered by each pixel (Scale/60)
38 A1 --- --- [x]
39- 41 F3.1 arcmin Ay Area covered by each pixel (Scale/60)
43- 52 A10 --- FileName Name of FITS file in subdirectory "fits" (1)
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Note (1): 16 slices of 424x180 pixels linearly covering the region of
RA=86.2° to 82.67°, DE=-70.12° to -68.62 where each pixel
covers (1/120)°x(1/120)°, (1/60)°x(1/60)° and
(1/12)°x(1/12)°, respectively to rc_030.fit, rc_1.fit and
rc_5.fit files. Degrees are in J2000 coordinates. Numerical values of
each pixel represent the probability of E(J-Ks) extinction being less
than or equal to the slices extinction range in the range of
E(J-Ks)=-0.095 to 1.005mag where each slice covers E(J-Ks)=0.06875mag.
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Acknowledgements:
Benjamin L. Tatton <b.l.tatton(at)keele.ac.uk>
References:
Cioni et al. Paper I 2011A&A...527A.116C 2011A&A...527A.116C
Miszalski et al. Paper II 2011A&A...531A.157M 2011A&A...531A.157M Cat. J/A+A/531/157
GULLIEUSZIK et al. Paper III 2012A&A...537A.105G 2012A&A...537A.105G Cat. J/A+A/537/105
Rubele et al. Paper IV 2012A&A...537A.106R 2012A&A...537A.106R
Ripepi et al. Paper V 2012MNRAS.424.1807R 2012MNRAS.424.1807R
Cioni et al. Paper VI 2013A&A...549A..29C 2013A&A...549A..29C Cat. J/A+A/549/29
Ripepi et al. Paper VIII 2014MNRAS.437.2307R 2014MNRAS.437.2307R Cat. J/MNRAS/437/2307
Cioni et al. Paper IX 2014A&A...562A..32C 2014A&A...562A..32C
Moretti et al. Paper X 2014MNRAS.437.2702M 2014MNRAS.437.2702M Cat. J/MNRAS/437/2702
Li et al. Paper XI 2014ApJ...790...35L 2014ApJ...790...35L
Piatti et al. Paper XII 2014A&A...570A..74P 2014A&A...570A..74P
Ripepi et al. Paper XIII 2015MNRAS.446.3034R 2015MNRAS.446.3034R Cat. J/MNRAS/446/3034
Rubele et al. Paper XIV 2015MNRAS.449..639R 2015MNRAS.449..639R Cat. J/MNRAS/449/639
Piatti et al. Paper XV 2015MNRAS.450..552P 2015MNRAS.450..552P
Piatti et al. Paper XVI 2015MNRAS.454..839P 2015MNRAS.454..839P
Cioni et al. Paper XVII 2016A&A...586A..77C 2016A&A...586A..77C
Zhang et al. Paper XVIII 2015ApJ...815...95Z 2015ApJ...815...95Z
Ripepi et al. Paper XIX 2016ApJS..224...21R 2016ApJS..224...21R Cat. J/ApJS/224/21
Moretti et al. Paper XX 2016MNRAS.459.1687M 2016MNRAS.459.1687M Cat. J/MNRAS/459/1687
Piatti et al. Paper XXI 2016MNRAS.460..383P 2016MNRAS.460..383P
Sun et al. Paper XXII 2017ApJ...835..171S 2017ApJ...835..171S
Marconi et al. Paper XXIII 2017MNRAS.466.3206M 2017MNRAS.466.3206M
Subramanian et al. Paper XXIV 2017MNRAS.467.2980S 2017MNRAS.467.2980S
Ripepi et al. Paper XXV 2017MNRAS.472..808R 2017MNRAS.472..808R
Sun et al. Paper XXVII 2017ApJ...849..149S 2017ApJ...849..149S Cat. J/ApJ/849/149
Niederhofer et al. Paper XXVIII 2018A&A...612A.115N 2018A&A...612A.115N
Sun et al. Paper XXIX 2018ApJ...858...31S 2018ApJ...858...31S Cat. J/ApJ/858/31
Niederhofer et al. Paper XXX 2018A&A...613L...8N 2018A&A...613L...8N
Rubele et al. Paper XXXI 2018MNRAS.478.5017R 2018MNRAS.478.5017R
Zivkov et al. Paper XXXII 2018A&A...620A.143Z 2018A&A...620A.143Z
Groenewegen et al. Paper XXXIII 2019A&A...622A..63G 2019A&A...622A..63G
(End) Benjamin L. Tatton [Keele Univ.,UK], Emmanuelle Perret [CDS] 03-Jun-2013