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2001MNRAS.321...77G - Mon. Not. R. Astron. Soc., 321, 77-95 (2001/February-2)
Large-amplitude variables near the Galactic Centre.
GLASS I.S., MATSUMOTO S., CARTER B.S. and SEKIGUCHI K.
Abstract (from CDS):
The limits of completeness arising from interstellar and circumstellar absorption are discussed. Most of the area suffers interstellar extinction of {formmu4} The shorter-period LPVs are less luminous than the longer-period ones and may be slightly under-represented in the data. Extremely heavy extinction {formmu5} which affects the probability of detecting variables, occurs in less than 25per cent of the area.
Almost all of the LPVs are Miras or OH/IR stars, with periods ranging from 150d to about 800d. K-band counterparts have been found for 59per cent of the 109 known OH sources in the field. The average period of the variables found is 427d, while that of the OH/IR stars is 524d. For comparison, the average period in the Sgr I window, which contains no known OH/IR stars, is 333d and only two stars are detected with {formmu6} The survey field also contains a number of long-period, large-amplitude variables that are not OH emitters.
Abstract Copyright: 2001, Royal Astronomical Society
Journal keyword(s): surveys - stars: AGB and post-AGB - stars: variables: other - Galaxy: centre
VizieR on-line data: <Available at CDS (J/MNRAS/321/77): table1 table2 table3 table4 table5 table6>
Nomenclature: Tables 2, 4: [GMC2001] FF-NNNN N=399.
Errata: erratum vol. 336, p. 1390 (2002)
Simbad objects: 412
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