J/A+A/299/453 J/A+A/299/453 OH/IR stars photometry J R D Lepine R Ortiz N Epchtein Astron. Astrophys. 299 453 1995 1995A&A...299..453L circumstellar matter infrared: stars stars: AGB and post-AGB stars: evolution This paper presents JHKL'M photometry of a new sample of OH/IR stars. These data are merged with similar observations collected in the literature in order to constitute a data base of near-infrared photometry for 400 OH/IR stars. After removing from this sample the objects that are unlikely to be AGB stars, we obtain a sequence of average OH/IR stars with increasing values of the colour index K-L'. A simple model of a star surrounded by a circumstellar shell is constructed in order to derive basic parameters such as luminosity, radius, stellar temperature, optical depth of the dust shell and mass loss rate. These parameters are found to vary smoothly along the sequence of OH/IR stars, and the K-L' colour is shown to describe almost completely the basic physical parameters of an OH/IR star. The metallicity affects the OH-peak separation, but does not play an important role in the definition of the other properties.

IRAS IRAS name --- Ref Reference number=1 00=this work; 01=Fouque et al. 1992; 02=Epchtein et al. 1990; 03=Guglielmo et al. 1993; 04=Epchtein & Nguyen-Quang-Rieu 1982; 05=Le Bertre 1987; 06=Le Bertre 1991; 07=Braz & Epchtein 1982; 08=Le Bertre et al. 1984; 09=Epchtein et al. 1980; 10=Epchtein & Lepine; 1981; 11=Le Bertre et al. 1984; 12=Epchtein et al. 1987; 13=Braz & Epchtein 1987; 14=Whitelock & Feast 1984; 15=Whitelock 1985; 16=Whitelock et al.1986; 17=Gaylard & Whitelock 1988; 18=Gaylard et al. 1989; 19=Whitelock et al. 1991; 20=Feast et al. 1983; 21=Glass 1988; 22=Glass 1986; 23=Glass 1978; 24=Persi et al. 1990; 25=Persi & Ferrari-Toniolo 1984; 26=Manchado et al. 1989; 27=Garcia-Lario et al. 1990; 28=Garcia-Lario et al. 1993; 29=van der Veen 1988; 30=Blommaert et al. 1993; 31=Blommaert 1992; 32=Willems & de Jong 1982; 33=Evans & Beckwith 1977; 34=Engels et al. 1981; 35=Schultz et al. 1976; 36=Werner et al. 1989; 37=Wilson et al. 1972; 38=Jones et al. 1982; 39=Jones et al. 1983; 40=Lawrence et al. 1990; 41=Fix & Mutel 1984; 42=Allen et al. 1977; 43=Gosnell et al. 1979; 44=Persson & Campbell 1988; 45=Nyman et al. 1993; 46=Le Bertre 1993 --- OtherRef Other reference number=1 00=this work; 01=Fouque et al. 1992; 02=Epchtein et al. 1990; 03=Guglielmo et al. 1993; 04=Epchtein & Nguyen-Quang-Rieu 1982; 05=Le Bertre 1987; 06=Le Bertre 1991; 07=Braz & Epchtein 1982; 08=Le Bertre et al. 1984; 09=Epchtein et al. 1980; 10=Epchtein & Lepine; 1981; 11=Le Bertre et al. 1984; 12=Epchtein et al. 1987; 13=Braz & Epchtein 1987; 14=Whitelock & Feast 1984; 15=Whitelock 1985; 16=Whitelock et al.1986; 17=Gaylard & Whitelock 1988; 18=Gaylard et al. 1989; 19=Whitelock et al. 1991; 20=Feast et al. 1983; 21=Glass 1988; 22=Glass 1986; 23=Glass 1978; 24=Persi et al. 1990; 25=Persi & Ferrari-Toniolo 1984; 26=Manchado et al. 1989; 27=Garcia-Lario et al. 1990; 28=Garcia-Lario et al. 1993; 29=van der Veen 1988; 30=Blommaert et al. 1993; 31=Blommaert 1992; 32=Willems & de Jong 1982; 33=Evans & Beckwith 1977; 34=Engels et al. 1981; 35=Schultz et al. 1976; 36=Werner et al. 1989; 37=Wilson et al. 1972; 38=Jones et al. 1982; 39=Jones et al. 1983; 40=Lawrence et al. 1990; 41=Fix & Mutel 1984; 42=Allen et al. 1977; 43=Gosnell et al. 1979; 44=Persson & Campbell 1988; 45=Nyman et al. 1993; 46=Le Bertre 1993 --- IRAS IRAS name --- m_IRAS Multiplicity index on IRAS --- LON Longitude deg LAT Latitude deg Vlow Lowest velocity km/s Vhigh Highest velocity km/s Dist Distance kpc Kmag K magnitude mag J-H J-H colour mag H-K H-K colour mag K-L K-L colour mag L-M L-M colour mag Patricia Bauer CDS 1995Feb21 J_A+A_299_453.xml