J/A+A/451/431 IRAS fluxes in LMC starburst regions (Livanou+, 2006)
Star-burst regions in the LMC.
Mapping and multi-wavelength properties of stellar complexes.
Livanou E., Kontizas M., Gonidakis I., Kontizas E., Maragoudaki F.,
Oliver S., Efstathiou A., Klein U.
<Astron. Astrophys. 451, 431 (2006)>
=2006A&A...451..431L 2006A&A...451..431L
ADC_Keywords: Magellanic Clouds ; Infrared sources
Keywords: LMC - star formation regions - stellar complexes - starburst galaxies
Abstract:
Filamentary structures of early type stars are found to be a common
feature of the Magellanic Clouds formed at an age of about
0.9-2x108yr. As we go to younger ages these large structures appear
fragmented and sooner or later form young clusters and associations.
In the optical domain we have detected 56 such large structures of
young objects, known as stellar complexes in the LMC for which we give
coordinates and dimensions. We also investigate star formation
activity and evolution of these stellar complexes and define the term
"starburst region".
Description:
IR properties of these regions have been investigated using IRAS data.
A colour-magnitude diagram (CMD) and a two-colour diagram from IRAS
data of these regions ware compared with observations of starburst
galaxies and cross-matching with HII regions and SNRs was made. Radio
emission maps at 8.6-GHz and the CO (1->0) line were also cross
correlated with the map of the stellar complexes.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 73 56 List of the LMC stellar complexes
table3.dat 82 56 IRAS fluxes
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Group Stellar Grouping designation (G1)
5- 9 A5 --- SGroup Name of the larger structure for structure
found inside a larger one
11- 12 I2 h RAh Centre right ascension (B1950)
14- 15 I2 min RAm Centre right ascension (B1950)
17- 18 I2 s RAs Centre right ascension (B1950)
20 A1 --- DE- Centre declination sign (B1950)
21- 22 I2 deg DEd Centre declination (B1950)
24- 25 I2 arcmin DEm Centre declination (B1950)
27- 28 I2 arcsec DEs Centre declination (B1950)
30- 36 F7.2 pc Dim Dimension
38- 39 I2 --- Nsnr Number of SNRs and candidates
41- 50 A10 --- n_Nsnr Note on Nsnr
52- 62 A11 --- AssocID stellar associations
64- 65 I2 --- Nneb Number of Nebulae and Henize objects
67 A1 --- 8.6GHz [o-] Presence of 8.6GHz line emission (1)
69 A1 --- CO [o-] Presence of CO line emission (1)
71- 73 A3 --- Type Characterisation of the complex (2)
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Note (1): "-" and "o" mark the lack or existence of the emission respectively
Note (2): Type as follows:
I = starburst region
II = starburst candidate
III = active complexe candidate
IV = active complexe
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Group Stellar Grouping designation (G1)
5- 9 A5 --- SGroup Name of the larger structure for structure
found inside a larger one
11- 14 F4.2 MJy/sr f12um IRAS flux at 12µm (in MJy/sr)
16- 22 E7.2 solLum L12um Infrared luminosity at 12µm
24- 28 F5.2 MJy/sr f25um IRAS flux at 25µm (in MJy/sr)
30- 36 E7.2 solLum L25um Infrared luminosity at 25µm
38- 43 F6.2 MJy/sr f60um IRAS flux at 60µm (in MJy/sr)
45- 51 E7.2 solLum L60um Infrared luminosity at 60µm
53- 58 F6.2 MJy/sr f100um IRAS flux at 100µm (in MJy/sr)
60- 66 E7.2 solLum L100um Infrared luminosity at 100µm
68- 71 F4.2 --- F60/F100 60-to-100um flux ratio
73- 77 F5.2 Jy F60um IRAS Flux density at 60µm, in Jy/pix
79- 82 F4.2 Jy e_F60um rms uncertainty in F60, in Jy/pix
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Global notes:
Note (G1): Note on Stellar Grouping designation:
A : aggregate
C : complex
SC : super-complex
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Acknowledgements:
Livanou Evdokia, jgonidakis(at)phys.uoa.gr
History:
* 24-Nov-2005: Original version
* 02-Jan-2007: in table3, the SGroup value was changed to be in agreement
with table 2 (concerns records #42 and 45)
(End) Livanou Evdokia [Athens Univ., Greece], Patricia Vannier [CDS] 24-Nov-2005