J/A+A/423/919 Objects in LHA 115-N83-84-85 SMC region (Bratsolis+, 2004)
Triggered star formation in the inner wing of the SMC.
Two possible supernova explosions in the N83-84-85 region.
Bratsolis E., Kontizas M., Bellas-Velidis I.
<Astron. Astrophys., 423, 919-924 (2004)>
=2004A&A...423..919B 2004A&A...423..919B
ADC_Keywords: Magellanic Clouds ; Positional data ; Stars, early-type
Keywords: techniques: image processing - methods: data analysis -
stars: formation - galaxies: Magellanic Clouds - shock waves
Abstract:
In this article we study the N83-84-85 region of the inner wing of
the SMC. Direct and low-dispersion objective prism plates taken with
the 1.2m UK Schmidt Telescope have been digitized by the SuperCOSMOS
machine. Star counts have been performed for our region in selected
luminosity slices in the U filter and isodensity contours have been
used to identify the structures with enhanced stellar number density.
We find evidence of triggered star formation from massive stars of
older to more recent OB associations. Circular arcs constructed by O
and B stars have been detected. A study of the population places stars
with more recent ages in the groups of the arcs than of their centers.
These effects can be explained by supernova explosions. A catalogue of
the non-saturated detected OB stars in this region is given.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 73 41 Detected objects in our region according
Bica & Schmitt (1995, Cat. J/ApJS/101/41)
table3.dat 22 610 Detected (non-saturated) OB stars in our region
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See also:
J/ApJS/101/41 : SMC and Bridge extended catalog (Bica+ 1995)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [887/961] Sequential number
5- 6 I2 h RAh Right ascension (J2000)
8- 9 I2 min RAm Right ascension (J2000)
11- 12 I2 s RAs Right ascension (J2000)
14 A1 --- DE- Declination sign (J2000)
15- 16 I2 deg DEd Declination (J2000)
18- 19 I2 arcmin DEm Declination (J2000)
21- 22 I2 arcsec DEs Declination (J2000)
24- 33 A10 --- Name Name (1)
35- 37 I3 pix Xpos X position
39- 41 I3 pix Ypos Y position
43- 44 A2 --- Type [ACN ] Type (2)
46- 50 F5.2 arcmin Dmax Size of the major axis
52- 56 F5.2 arcmin Dmin Size of the minor axis
58- 87 A30 --- Rem Remarks (3)
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Note (1): the acronyms designate the following lists:
L91 = Cl Lindsay 91
L61-NNN = LIN NNN in Simbad
SMC-N83A = LHA 115-N 83A in Simbad
MA1779 = [MA93] 1779 in Simbad
B146 = Bruck 146 in Simbad
BS161 = [BS95] 161 in Simbad
Note (2): Types use the following symbols:
A = association
C = star cluster
N = emission nebula
Note (3): In the remarks, "att" means attached to
and "in" suggests a possible connection
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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 I3 --- [BKB2004b] [1/610] Sequential number
5- 6 I2 h RAh Right ascension (J2000)
8- 9 I2 min RAm Right ascension (J2000)
11- 12 I2 s RAs [0/60] Right ascension (J2000)
14 A1 --- DE- Declination sign (J2000)
15- 16 I2 deg DEd Declination (J2000)
18- 19 I2 arcmin DEm Declination (J2000)
21- 22 I2 arcsec DEs [0/60] Declination (J2000)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 14-Jun-2005