J/MNRAS/337/519 M giants in MACHO, DENIS and ISOGAL (Glass+, 2002)
M giants in MACHO, DENIS and ISOGAL.
Glass I.S., Schultheis M.
<Mon. Not. R. Astron. Soc. 337, 519 (2002)>
=2002MNRAS.337..519G 2002MNRAS.337..519G
ADC_Keywords: Stars, variable ; Stars, giant ; Stars, M-type
Keywords: stars: AGB and post-AGB - stars: variables: other - Galaxy: bulge
Abstract:
A 'complete' sample of 174 M giants classified in the mid-1980s by
Blanco (1986AJ.....91..290B 1986AJ.....91..290B) and later than subtype M0 in the NGC 6522
Baade's Window clear field has been investigated to establish some
general properties of cool bulge stars. Photometric information has
been obtained from the MACHO data base to search for variability and,
where possible, to determine periods. Near- and mid-infrared
magnitudes have been extracted from DENIS (B/denis) and ISOGAL
(II/243). 46 semiregular variables (SRVs) and two irregular
variables were found amongst the 174. Many M5 and all stars M6 or
later show variation, whereas earlier subtypes (M1-M4) do not.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 76 174 NGC 6522 Baade's Window M stars
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See also:
B/denis : The DENIS database (Epchtein+, 1999)
II/243 : The ISOGAL Point Source Catalogue - IGPSC (Omont+ 2003)
http://wwwmacho.mcmaster.ca : MACHO Project HomePage
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [B86] Blanco et al., 1986AJ.....91..290B 1986AJ.....91..290B, number
5- 18 A14 --- MACHO MACHO number
21- 22 I2 h RAh Right ascension (J2000)
24- 25 I2 min RAm Right ascension (J2000)
27- 30 F4.1 s RAs Right ascension (J2000)
32 A1 --- DE- Declination sign (J2000)
33- 34 I2 deg DEd Declination (J2000)
36- 37 I2 arcmin DEm Declination (J2000)
39- 43 F5.2 arcsec DEs Declination (J2000)
45- 48 A4 --- SpType MK spectral type (M subtype)
50- 79 A30 --- Notes Period and amplitudes (1)
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Note (1): Used abbreviations:
irr. = irregular
n.i.D. = not in DENIS
comp. = composite
aper. = aperiodic
ampl. = amplitude
reg. = regular
irr. var. = irregular variable
eq. ampl. = equal amplitudes
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History:
From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 06-Feb-2003