Table C.1
Applicable range for the relationships between the Gaia EDR3 system and the other photometric systems considered.
| HIPPARCOS relationships | |
| G − HP = f(B − V) | − 0.25 < B − V < 1.9(a) |
| G − HP = f(V − I) | − 0.25 < V − I < 5.0 |
| G − HP = f(GBP − GRP) | − 0.5 < GBP − GRP < 4.0 |
| GBP − HP = f(V − I) | − 0.2 < V − I < 3.0 |
| GRP − HP = f(V − I) | − 0.4 < V − I < 3.5 |
| GBP − GRP = f(V − I) | − 0.5 < V − I < 3.5 |
| Tycho-2 relationships | |
| G − VT = f(BT − VT) | − 0.2 < BT − VT < 2.0(b) |
| G − VT = f(GBP − GRP) | − 0.35 < GBP − GRP < 4.0 |
| G − BT = f(GBP − GRP) | − 0.3 < GBP − GRP < 3.0 |
| GBP − VT = f(BT − VT) | − 0.2 < BT − VT < 2.5 |
| GRP − VT = f(BT − VT) | − 0.3 < BT − VT < 2.0(c) |
| GBP − GRP = f(BT − VT) | − 0.3 < BT − VT < 2.0(d) |
| SDSS12 relationships | |
| G − g = f(g − i) | − 1.0 < g − i < 9.0 |
| G − r = f(r − i) | − 0.5 < r − i < 2.0 |
| G − i = f(r − i) | − 0.35 < r − i < 2.0 |
| GBP − g = f(g − i) | − 0.6 < g − i < 3.5 |
| GRP − r = f(r − i) | − 0.9 < g − i < 8.0 |
| GBP − GRP = f(g − i) | − 0.5 < g − i < 3.5(e) |
| G − r = f(GBP − GRP) | 0.0 < GBP − GRP < 3.0(f) |
| G − i = f(GBP − GRP) | 0.5 < GBP − GRP < 2.0 |
| G − g = f(GBP − GRP) | 0.3 < GBP − GRP < 3.0(g) |
| Johnson-Cousins relationships | |
| G − V = f(V − IC) | − 0.4 < V − IC < 5.0 |
| G − V = f(V − R) | − 0.15 < V − R < 2.3(h) |
| G − V = f(B − V) | − 0.4 < B − V < 3.3(i) |
| GBP − V = f(V − IC) | 0.0 < V − IC < 4.0 |
| GRP − V = f(V − IC) | − 0.4 < V − IC < 5.0 |
| GBP − GRP = f(V − IC) | − 0.4 < V − IC < 5.0 |
| G − V = f(GBP − GRP) | − 0.5 < GBP − GRP < 5.0 |
| G − R = f(GBP − GRP) | 0.0 < GBP − GRP < 4.0(j) |
| G − IC = f(GBP − GRP) | − 0.5 < GBP − GRP < 4.5 |
| 2MASS relationships | |
| G − KS = f(H − KS) | − 0.1 < H − KS < 0.4 |
| GBP − KS = f(H − KS) | − 0.1 < H − KS < 0.4 |
| GRP − KS = f(H − KS) | − 0.1 < H − KS < 0.4 |
| GBP − GRP = f(H − KS) | − 0.1 < H − KS < 0.4 |
| G − KS = f(GBP − GRP) | − 0.5 < GBP − GRP < 2.5 |
| G − H = f(GBP − GRP) | − 0.5 < GBP − GRP < 2.5 |
| G − J = f(GBP − GRP) | − 0.5 < GBP − GRP < 2.5 |
| G − KS = f(J − KS) | − 0.2 < H − KS < 1.1 |
| GBP − KS = f(J − KS) | − 0.2 < H − KS < 1.1 |
| GRP − KS = f(J − KS) | − 0.2 < H − KS < 1.1 |
| GBP − GRP = f(J − KS) | − 0.1 < H − KS < 1.1 |
Notes. (a) For B − V > 1.4 this is only valid for M giants. (b)For BT − VT > 1.7 this is only valid for M giants. (c)For BT − VT > 1.7 this is only valid for M giants. (d)For BT − VT > 1.7 this is only valid for M giants. (e)For GBP − GRP > 2.25 this is only valid for M giants. (f)For GBP − GRP > 2.0 this is only valid for M giants. (g)For GBP − GRP > 2.0 this is only valid for M giants. (h)For V − R > 0.9 this is only valid for M giants. (i)For B − V > 1.3 this is only valid for M giants. (j)For GBP −GRP > 2.0 this is only validfor M giants.
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