10. Comparisons with other temperature determinations

Bell & Gustafsson (1989) have determined temperatures for 95 stars using both synthetic infrared colours and the IRFM, using the Johnson K-band. Mean temperatures found using these two methods are listed by these authors as gadopted" temperatures, which we suggest is the more significant for a comparison because they partly depend on a different technique. Table 7 (click here) shows a comparison between these gadopted" temperatures and the present IRFM temperatures for 33 stars. The mean difference T(Oxford-BG) is -0.41 per cent with a standard deviation of 1.95 per cent. The results of comparisons with the results obtained by other authors are summarised in Table 8 (click here).

 

HR T(ISO) T(BG) HR T(ISO) T(BG)

434 4063 4046 0.42 5602 4997 4929 1.36

464 4360 4425 -1.49 5681 4810 4832 -0.46

753 4759 4775 -0.34 5777 4801 4742 1.23

996 5713 5650 1.10 5854 4558 4321 5.20

1325 5161 5114 0.91 5889 5247 5608 -6.88

1409 4911 4911 0.00 5901 4731 4920 -3.99

1464 5015 4974 0.82 6220 4918 4913 0.10

1907 4701 4719 -0.38 6603 4601 4603 -0.04

2077 4764 4831 -1.41 6623 5496 5527 -0.56

2990 4837 4896 -1.22 7479 5415 5429 -0.26

3403 4524 4542 -0.40 7602 4990 5098 -2.16

4335 4650 4542 2.32 8085 4350 4463 -2.60

4883 5747 5761 -0.24 8255 4696 4715 -0.06

4983 5959 6024 -1.09 8499 4985 4956 0.58

5019 5430 5650 -0.06 8684 4981 5044 -1.22

5429 4220 4303 -1.97

Table 7: Comparison of ISO temperatures () with the adopted temperatures () determined by Bell & Gustafsson (1989); gives the percentage difference  

   

Publication No. of Stars

Alonso et al. (1996b) 93

Bell & Gustafsson (1989) 33

Fuhrmann et al. (1994) 13 30   3

Peterson & Carney (1979) 10 * omitting discrepant temperature determination for HR 2085 ** omitting discrepant temperature determination for HR 5986.

Table 8: Comparisons between ISO calibration star temperatures ( - this work) and other determinations (); gives the percentage difference