J/A+A/453/635 Modelling the Galactic Interstellar Extinction (Marshall+, 2006)
Modelling the Galactic Interstellar Extinction Distribution in Three Dimensions.
Marshall D.J., Robin A.C., Reyle C., Schultheis M., Picaud S.
<Astron. Astrophys. 453, 635 (2006)>
=2006A&A...453..635M 2006A&A...453..635M
ADC_Keywords: Interstellar medium ; Extinction ; Models
Keywords: ISM: dust, extinction - ISM: structure - Galaxy: structure
Abstract:
The Two Micron All Sky Survey (Cat. II/246), along with the Stellar
Population Synthesis Model of the Galaxy, developed in Besancon, is
used to calculate the extinction distribution along different lines of
sight. The Galaxy model is used to provide the intrinsic colour of
stars and their probable distances, so that the near infrared colour
excess, and hence the extinction, may be calculated and its distance
evaluated.
Description:
The extinction along the line of sight is presented for fields in the
region |l|≤100, |b|≤10. Each line corresponds to one field and gives
all the extinction information along that line of sight.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 821 64881 Interstellar extinction distribution
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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2- 7 F6.2 deg GLON [0/360] Galactic longitude
9- 14 F6.2 deg GLAT Galactic latitude
15- 20 F6.3 --- x2all Chi-squared, all stars (1)
21- 26 F6.3 --- x2gts ?=9.999 Chi-squared, giants (1)(2)
27- 29 I3 --- nb [1,33] Number of bins used
30- 35 F6.2 kpc r1 Heliocentric distance of bin1
36- 41 F6.3 mag ext1 Ks band extinction of bin1
42- 47 F6.2 kpc e_r1 Distance uncertainty of bin1
48- 53 F6.3 mag e_ext1 Extinction uncertainty of bin1
54- 59 F6.2 kpc r2 ? Heliocentric distance of bin2 (3)
60- 65 F6.3 mag ext2 ? Ks band extinction of bin2 (3)
66- 71 F6.2 kpc e_r2 ? Distance uncertainty of bin2 (3)
72- 77 F6.3 mag e_ext2 ? Extinction uncertainty of bin2 (3)
78- 83 F6.2 kpc r3 ? Heliocentric distance of bin3 (3)
84- 89 F6.3 mag ext3 ? Ks band extinction of bin3 (3)
90- 95 F6.2 kpc e_r3 ? Distance uncertainty of bin3 (3)
96-101 F6.3 mag e_ext3 ? Extinction uncertainty of bin3 (3)
102-107 F6.2 kpc r4 ? Heliocentric distance of bin4 (3)
108-113 F6.3 mag ext4 ? Ks band extinction of bin4 (3)
114-119 F6.2 kpc e_r4 ? Distance uncertainty of bin4 (3)
120-125 F6.3 mag e_ext4 ? Extinction uncertainty of bin4 (3)
126-131 F6.2 kpc r5 ? Heliocentric distance of bin5 (3)
132-137 F6.3 mag ext5 ? Ks band extinction of bin5 (3)
138-143 F6.2 kpc e_r5 ? Distance uncertainty of bin5 (3)
144-149 F6.3 mag e_ext5 ? Extinction uncertainty of bin5 (3)
150-155 F6.2 kpc r6 ? Heliocentric distance of bin6 (3)
156-161 F6.3 mag ext6 ? Ks band extinction of bin6 (3)
162-167 F6.2 kpc e_r6 ? Distance uncertainty of bin6 (3)
168-173 F6.3 mag e_ext6 ? Extinction uncertainty of bin6 (3)
174-179 F6.2 kpc r7 ? Heliocentric distance of bin7 (3)
180-185 F6.3 mag ext7 ? Ks band extinction of bin7 (3)
186-191 F6.2 kpc e_r7 ? Distance uncertainty of bin7 (3)
192-197 F6.3 mag e_ext7 ? Extinction uncertainty of bin7 (3)
198-203 F6.2 kpc r8 ? Heliocentric distance of bin8 (3)
204-209 F6.3 mag ext8 ? Ks band extinction of bin8 (3)
210-215 F6.2 kpc e_r8 ? Distance uncertainty of bin8 (3)
216-221 F6.3 mag e_ext8 ? Extinction uncertainty of bin8 (3)
222-227 F6.2 kpc r9 ? Heliocentric distance of bin9 (3)
228-233 F6.3 mag ext9 ? Ks band extinction of bin9 (3)
234-239 F6.2 kpc e_r9 ? Distance uncertainty of bin9 (3)
240-245 F6.3 mag e_ext9 ? Extinction uncertainty of bin9 (3)
246-251 F6.2 kpc r10 ? Heliocentric distance of bin10 (3)
252-257 F6.3 mag ext10 ? Ks band extinction of bin10 (3)
258-263 F6.2 kpc e_r10 ? Distance uncertainty of bin10 (3)
264-269 F6.3 mag e_ext10 ? Extinction uncertainty of bin10 (3)
270-275 F6.2 kpc r11 ? Heliocentric distance of bin11 (3)
276-281 F6.3 mag ext11 ? Ks band extinction of bin11 (3)
282-287 F6.2 kpc e_r11 ? Distance uncertainty of bin11 (3)
288-293 F6.3 mag e_ext11 ? Extinction uncertainty of bin11 (3)
294-299 F6.2 kpc r12 ? Heliocentric distance of bin12 (3)
300-305 F6.3 mag ext12 ? Ks band extinction of bin12 (3)
306-311 F6.2 kpc e_r12 ? Distance uncertainty of bin12 (3)
312-317 F6.3 mag e_ext12 ? Extinction uncertainty of bin12 (3)
318-323 F6.2 kpc r13 ? Heliocentric distance of bin13 (3)
324-329 F6.3 mag ext13 ? Ks band extinction of bin13 (3)
330-335 F6.2 kpc e_r13 ? Distance uncertainty of bin13 (3)
336-341 F6.3 mag e_ext13 ? Extinction uncertainty of bin13 (3)
342-347 F6.2 kpc r14 ? Heliocentric distance of bin14 (3)
348-353 F6.3 mag ext14 ? Ks band extinction of bin14 (3)
354-359 F6.2 kpc e_r14 ? Distance uncertainty of bin14 (3)
360-365 F6.3 mag e_ext14 ? Extinction uncertainty of bin14 (3)
366-371 F6.2 kpc r15 ? Heliocentric distance of bin15 (3)
372-377 F6.3 mag ext15 ? Ks band extinction of bin15 (3)
378-383 F6.2 kpc e_r15 ? Distance uncertainty of bin15 (3)
384-389 F6.3 mag e_ext15 ? Extinction uncertainty of bin15 (3)
390-395 F6.2 kpc r16 ? Heliocentric distance of bin16 (3)
396-401 F6.3 mag ext16 ? Ks band extinction of bin16 (3)
402-407 F6.2 kpc e_r16 ? Distance uncertainty of bin16 (3)
408-413 F6.3 mag e_ext16 ? Extinction uncertainty of bin16 (3)
414-419 F6.2 kpc r17 ? Heliocentric distance of bin17 (3)
420-425 F6.3 mag ext17 ? Ks band extinction of bin17 (3)
426-431 F6.2 kpc e_r17 ? Distance uncertainty of bin17 (3)
432-437 F6.3 mag e_ext17 ? Extinction uncertainty of bin17 (3)
438-443 F6.2 kpc r18 ? Heliocentric distance of bin18 (3)
444-449 F6.3 mag ext18 ? Ks band extinction of bin18 (3)
450-455 F6.2 kpc e_r18 ? Distance uncertainty of bin18 (3)
456-461 F6.3 mag e_ext18 ? Extinction uncertainty of bin18 (3)
462-467 F6.2 kpc r19 ? Heliocentric distance of bin19 (3)
468-473 F6.3 mag ext19 ? Ks band extinction of bin19 (3)
474-479 F6.2 kpc e_r19 ? Distance uncertainty of bin19 (3)
480-485 F6.3 mag e_ext19 ? Extinction uncertainty of bin19 (3)
486-491 F6.2 kpc r20 ? Heliocentric distance of bin20 (3)
492-497 F6.3 mag ext20 ? Ks band extinction of bin20 (3)
498-503 F6.2 kpc e_r20 ? Distance uncertainty of bin20 (3)
504-509 F6.3 mag e_ext20 ? Extinction uncertainty of bin20 (3)
510-515 F6.2 kpc r21 ? Heliocentric distance of bin21 (3)
516-521 F6.3 mag ext21 ? Ks band extinction of bin21 (3)
522-527 F6.2 kpc e_r21 ? Distance uncertainty of bin21 (3)
528-533 F6.3 mag e_ext21 ? Extinction uncertainty of bin21 (3)
534-539 F6.2 kpc r22 ? Heliocentric distance of bin22 (3)
540-545 F6.3 mag ext22 ? Ks band extinction of bin22 (3)
546-551 F6.2 kpc e_r22 ? Distance uncertainty of bin22 (3)
552-557 F6.3 mag e_ext22 ? Extinction uncertainty of bin22 (3)
558-563 F6.2 kpc r23 ? Heliocentric distance of bin23 (3)
564-569 F6.3 mag ext23 ? Ks band extinction of bin23 (3)
570-575 F6.2 kpc e_r23 ? Distance uncertainty of bin23 (3)
576-581 F6.3 mag e_ext23 ? Extinction uncertainty of bin23 (3)
582-587 F6.2 kpc r24 ? Heliocentric distance of bin24 (3)
588-593 F6.3 mag ext24 ? Ks band extinction of bin24 (3)
594-599 F6.2 kpc e_r24 ? Distance uncertainty of bin24 (3)
600-605 F6.3 mag e_ext24 ? Extinction uncertainty of bin24 (3)
606-611 F6.2 kpc r25 ? Heliocentric distance of bin25 (3)
612-617 F6.3 mag ext25 ? Ks band extinction of bin25 (3)
618-623 F6.2 kpc e_r25 ? Distance uncertainty of bin25 (3)
624-629 F6.3 mag e_ext25 ? Extinction uncertainty of bin25 (3)
630-635 F6.2 kpc r26 ? Heliocentric distance of bin26 (3)
636-641 F6.3 mag ext26 ? Ks band extinction of bin26 (3)
642-647 F6.2 kpc e_r26 ? Distance uncertainty of bin26 (3)
648-653 F6.3 mag e_ext26 ? Extinction uncertainty of bin26 (3)
654-659 F6.2 kpc r27 ? Heliocentric distance of bin27 (3)
660-665 F6.3 mag ext27 ? Ks band extinction of bin27 (3)
666-671 F6.2 kpc e_r27 ? Distance uncertainty of bin27 (3)
672-677 F6.3 mag e_ext27 ? Extinction uncertainty of bin27 (3)
678-683 F6.2 kpc r28 ? Heliocentric distance of bin28 (3)
684-689 F6.3 mag ext28 ? Ks band extinction of bin28 (3)
690-695 F6.2 kpc e_r28 ? Distance uncertainty of bin28 (3)
696-701 F6.3 mag e_ext28 ? Extinction uncertainty of bin28 (3)
702-707 F6.2 kpc r29 ? Heliocentric distance of bin29 (3)
708-713 F6.3 mag ext29 ? Ks band extinction of bin29 (3)
714-719 F6.2 kpc e_r29 ? Distance uncertainty of bin29 (3)
720-725 F6.3 mag e_ext29 ? Extinction uncertainty of bin29 (3)
726-731 F6.2 kpc r30 ? Heliocentric distance of bin30 (3)
732-737 F6.3 mag ext30 ? Ks band extinction of bin30 (3)
738-743 F6.2 kpc e_r30 ? Distance uncertainty of bin30 (3)
744-749 F6.3 mag e_ext30 ? Extinction uncertainty of bin30 (3)
750-755 F6.2 kpc r31 ? Heliocentric distance of bin31 (3)
756-761 F6.3 mag ext31 ? Ks band extinction of bin31 (3)
762-767 F6.2 kpc e_r31 ? Distance uncertainty of bin31 (3)
768-773 F6.3 mag e_ext31 ? Extinction uncertainty of bin31 (3)
774-779 F6.2 kpc r32 ? Heliocentric distance of bin32 (3)
780-785 F6.3 mag ext32 ? Ks band extinction of bin32 (3)
786-791 F6.2 kpc e_r32 ? Distance uncertainty of bin32 (3)
792-797 F6.3 mag e_ext32 ? Extinction uncertainty of bin32 (3)
798-803 F6.2 kpc r33 ? Heliocentric distance of bin33 (3)
804-809 F6.3 mag ext33 ? Ks band extinction of bin33 (3)
810-815 F6.2 kpc e_r33 ? Distance uncertainty of bin33 (3)
816-821 F6.3 mag e_ext33 ? Extinction uncertainty of bin33 (3)
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Note (1): Chi-squared difference, per degree of freedom, for the
J-Ks histograms of the modelled and observed stars for the particular
line of sight. A higher value indicates a poorer fit between the two
histograms, and suggests that the uncertainty in the extinction has
been underestimated. Two values are given; one for all of the stars,
and one for the giants only.
Note (2): A value of 9.999 indicates that there were not enough giants
to calculate the chi-squared statistic. The extinction was calculated
using the diffuse extinction in the Galactic model (see article).
Note (3): The number of bins along the line of sight is variable.
This field may therefore be blank.
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Acknowledgements:
Douglas Marshall, doug.marshall(at)ias.u-psud.fr
(End) Douglas Marshall [Observatoire de Besancon, France] 18-Apr-2006