J/MNRAS/425/355 Hot stars in LMC UKST Hα survey (Reid+, 2012)
Emission-line stars discovered in the UKST Hα survey of the
Large Magellanic Cloud. I. Hot stars.
Reid W.A., Parker Q.A.
<Mon. Not. R. Astron. Soc., 425, 355-404 (2012)>
=2012MNRAS.425..355R 2012MNRAS.425..355R
ADC_Keywords: Magellanic Clouds ; Stars, emission ; Spectroscopy ; Photometry
Keywords: line: profiles - surveys - stars: emission-line, Be -
stars: kinematics and dynamics - stars: rotation - Magellanic Clouds
Abstract:
We present new, accurate positions, spectral classifications, radial
and rotational velocities, Hα fluxes, equivalent widths and B,
V, I, R magnitudes for 579 hot emission-line stars (classes B0-F9) in
the Large Magellanic Cloud (LMC) which include 469 new discoveries.
Candidate emission-line stars were discovered using a deep,
high-resolution Hα map of the central 25 degree2 of the LMC
obtained by median stacking a dozen 2h Hα exposures taken with
the UK Schmidt Telescope (UKST). Spectroscopic follow-up observations
on the Anglo-Australian Telescope, the UKST, the Very Large Telescope,
the South African Astronomical Observatory 1.9m and the 2.3-m
telescope at Siding Spring Observatory have established the identity
of these faint sources down to magnitude Requiv∼23 for Hα
(4.5x10-17ergs/cm2/s/Å).
Description:
Over a period of three years, from 1997, a series of repeated
narrow-band Hα and matching broad-band short red (SR) exposures
of the central LMC field were taken in order to produce a deep
Hα and SR image with a 1mag depth gain over a single image
frame. The 12 highest quality and well-matched UK Schmidt Telescope
(UKST) 2-h Hα exposures and six 15-min equivalent SR-band
exposures were selected. From these exposures, deep, homogeneous,
narrow-band Hα and matching broad-band SR maps of the entire
central 25 degree2 region of the LMC were constructed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 251 577 *Basic data for all hot emission-line stars in
the LMC UKST Hα survey
tablea2.dat 148 579 Compiled magnitude data for all hot emission-line
stars in the LMC UKST Hα survey
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Note on tablea1.dat: RPs1515 and RPs1551 are not in tablea1.
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See also:
I/252 : The USNO-A2.0 Catalogue (Monet+ 1998)
I/271 : The Guide Star Catalog, Version 2.2 (GSC2.2) (STScI, 2001)
J/AcA/50/307 : OGLE LMC BVI photometry (Udalski+, 2000)
J/MNRAS/405/1349 : LMC PNe [OIII] 5007Å and Hβ flux (Reid+, 2010)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [RPs]
4- 7 I4 --- RPs Reid & Parker (2010, Cat. J/MNRAS/405/1349)
(RPs) number for the star,
<[RP2006] NNNN> in Simbad
9- 10 I2 h RAh Right ascension (J2000)
12- 13 I2 min RAm Right ascension (J2000)
15- 19 F5.2 s RAs Right ascension (J2000)
21 A1 --- DE- Declination sign (J2000)
22- 23 I2 deg DEd Declination (J2000)
25- 26 I2 arcmin DEm Declination (J2000)
28- 31 F4.1 arcsec DEs Declination (J2000)
33- 58 A26 --- OName Published catalogue and number where a star
has been previously identified (1)
60- 69 A10 --- SpType Estimate of spectral classification and
luminosity class
71- 76 F6.2 [mW/m2] logFHa ?=- Hα emission flux obtained from our
flux-calibrated spectra
78- 80 I3 km/s FWHM ?=- Hα FWHM
82- 83 I2 km/s e_FWHM ? rms uncertainty on FWHM
85- 87 I3 0.1nm W(Ha) ?=- Hα equivalent width
89 I1 0.1nm e_W(Ha) ? rms uncertainty on W(Ha)
91- 93 I3 km/s HRV ?=- Heliocentric radial velocity
95- 97 I3 km/s e_HRV ? rms uncertainty on HRV
99-101 I3 km/s vsini ? Rotational velocity
103-104 I2 km/s e_vsini ? rms uncertainty on vsini
107-251 A145 --- Com Comments about spectrum (2)
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Note (1): Catalog as:
AL = Andrews & Lindsay (1964IrAJ....6..241A 1964IrAJ....6..241A)
AGPRS = Melchior, Hughes & Guibert (2000, J/A+AS/145/11)
BE74 = Bohannan & Epps (1974A&AS...18...47B 1974A&AS...18...47B)
FAUST = Bowyer et al. (1995, Cat. J/ApJS/96/461)
GRV = Reid, Glass & Catchpole (1988MNRAS.232...53R 1988MNRAS.232...53R)
HD = Draper (1925AnHar.100...17C 1925AnHar.100...17C, Cat. III/135)
IRAS = http://irsa.ipac.caltech.edu/IRASdocs/iras.html
KDM = Kontizas et al. (2001, Cat. J/A+A/369/932)
L63 = Lindsay (1963IrAJ....6..127L 1963IrAJ....6..127L)
LI = Schwering (1989, Cat. II/181)
MACHO = Keller et al. (2002, Cat. J/AJ/124/2039)
S = Henize (1956ApJS....2..315H 1956ApJS....2..315H)
SAB = Sabogal et al. (2005MNRAS.361.1055S 2005MNRAS.361.1055S)
SV (DV, HV) = Butler & Wayman (1974DunOP...1..193B 1974DunOP...1..193B)
SHV = Hughes (1989AJ.....97.1634H 1989AJ.....97.1634H)
XMMU = Lumb, Guainazzi & Gondoin (2001A&A...376..387L 2001A&A...376..387L)
2MASS = Skrutskie et al. (2006, Cat. VII/233)
Note (2): We provide comments where:
em = emission,
A.Em = ambient emission,
SP = single peak,
DP = double peak,
sh = shell.
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [RPs]
4- 7 I4 --- RPs [11/2210] Reid and Parker number (2010, Cat.
J/MNRAS/405/1349), <[RP2006] NNNN> in Simbad
9- 10 I2 h RAh Right ascension (J2000)
12- 13 I2 min RAm Right ascension (J2000)
15- 19 F5.2 s RAs Right ascension (J2000)
21 A1 --- DE- Declination sign (J2000)
22- 23 I2 deg DEd Declination (J2000)
25- 26 I2 arcmin DEm Declination (J2000)
28- 32 F5.2 arcsec DEs Declination (J2000)
34- 47 A14 --- GSC2.2 GSC2.2 catalogue reference (Cat. I/271)
49- 53 F5.3 min dGSC2.2 ? Distance between our position and
the GSC2.2 position
54- 55 A2 --- --- [SC]
56- 64 A9 --- OGLE OGLE catalogue reference (J/AcA/50/307)
66 A1 --- --- [U]
67- 79 A13 --- USNO USNO-A2.0 catalogue reference (NNNN-NNNNNNNN)
(Cat. I/252) provided by ESO
81- 85 F5.3 min dUSNO ? Distance between our position and that
provided by USNO-A2.0
87- 89 I3 deg PA [0/360]? Position angle as provided by USNO
91- 96 F6.3 mag BmagO ? Ogle B magnitude
98-103 F6.3 mag BmagS ? SuperCosmos B magnitude
105-109 F5.2 mag BmagU ? USNO B magnitude
111-115 F5.2 mag VmagG ? GSC2.2 V magnitude
117-122 F6.3 mag VmagO ? OGLE V magnitude
124-129 F6.3 mag ImagS ? SuperCosmos I magnitude
131-136 F6.3 mag ImagO ? OGLE I magnitude
138-143 F6.3 mag RmagS ? SuperCosmos R magnitude
145-148 F4.1 mag RmagU ? USNO R magnitude
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 17-May-2013