Star formation in the outer Galaxy: membership and fundamental parameters of the young open cluster NGC 1893

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Volume 527 (March 2011)

A&A, 527 (2011) A77

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Table 4

Couples of colors used to define the reddening independent Q-indices as in Eq. (2) and the limit adopted to distinguish objects with normal photospheric colors from YSOs with excesses.

A − B	C − D	Q _lim	A − B	C − D	Q_lim

J − H	H − K	−0.017	J − K	K − [3.6]	−1.350
V − I	J − K	−0.472	J − K	K − [4.5]	−1.012
V − I	J − H	−1.047	J − K	K − [5.8]	−1.028
V − I	H − K	−0.044	J − K	K − [8.0]	−1.462
V − I	J − [3.6]	−1.008	J − H	K − [3.6]	−0.705
V − I	J − [4.5]	−0.908	J − H	K − [4.5]	−0.493
V − I	J − [5.8]	−0.968	J − H	K − [5.8]	−0.503
V − I	J − [8.0]	−1.271	J − H	K − [8.0]	−0.776
...	...		H − K	K − [3.6]	−0.644
...	...		H − K	K − [4.5]	−0.519
...	...		H − K	K − [5.8]	−0.525
...	...		H − K	K − [8.0]	−0.686

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