A new implementation of the infrared flux method using the 2MASS catalogue

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Table 4:

Comparison with other temperature scales.
Sample	[Fe/H] range	$\Delta T_{\rm eff}$	$\sigma_{T_{\rm eff}}$	N^a
Dwarf Stars
Alonso et al. (1996a)	[-3.5, +0.3]	+64	104	332
Alonso et al. (1996a)	[-3.5, -2.5]	+61	91	18
Alonso et al. (1996a)	[-0.5, +0.3]	+32	130	122
Ramírez & Meléndez (2005a)	[-4.0, +0.3]	+33	98	84
Ramírez & Meléndez (2005a)	[-4.0, -2.5]	-87	194	12
Ramírez & Meléndez (2005a)	[-0.5, +0.3]	+45	91	69
Casagrande et al. (2006)	[-1.9, +0.4]	-12	56	101
Casagrande et al. (2006)^b	[-1.9, +0.4]	-41	50	101
Santos et al. (2004)	[-0.7, +0.5]	+11	120	133
Santos et al. (2004)^b	[-0.7, +0.5]	-13	129	133
Bonifacio et al. (2007)	[-3.6, -2.4]	+165	79	16
Barklem et al. (2002)	[-2.5, +0.1]	+77	133	23
Barklem et al. (2002)	[-0.5, -0.1]	+51	129	16
Christlieb et al. (2004)	[-3.1, -1.6]	+177	80	8
Baines et al. (2008)^c	[-0.4, 0.5]	-32	163	22
Giant stars
Alonso et al. (1999a)	[-3.0, +0.5]	+54	131	202
Alonso et al. (1999a)	[-3.0, -2.5]	+76	120	10
Alonso et al. (1999a)	[-0.5, +0.5]	+43	144	116
Ramírez & Meléndez (2005a)	[-4.0, +0.3]	+63	57	25
Ramírez & Meléndez (2005a)	[-4.0, -2.5]	+61	62	18
Ramírez & Meléndez (2005a)	+0.2^d	+116	-	1
Cayrel et al. (2004)	[-4.0, -2.0]	+115	76	34
Christlieb et al. (2004)	[-3.4, -2.6]	+128	71	22
Baines et al. (2008)^c	0^e	-67	139	6

^a The number of stars.
^b If we consider all reddening corrections equal to zero.
^c $\Delta T_{\rm eff}=T_{\rm eff}^{\rm IRFM}-T_{\rm eff}^{\rm dir}$ , where $T_{\rm eff}^{\rm dir}$ is a direct determination of $T_{\rm eff}\;$ using the angular diameter $\theta$ .
^d One metal-rich giant star.
^e Did not find any metallicity determination so decided to adopt [Fe/H] =0.

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