Earth, Planets and Space

Table 2. Solar photon fluxes for moderate solar activity at 1 AU (Bauer and Lammer, 2004).

From: Variability of solar/stellar activity and magnetic field and its influence on planetary atmosphere evolution

λ [Å]	Φ [10⁹ph cm⁻² sec ⁻¹]	I_∞ [erg cm⁻² sec⁻¹]
1215.7 (Ly α)	300	5
1027–911	11.61	0.23
1025.7 (Lyβ)	3.5	0.067
977 (C III)	4.4	0.090
911–800	8.3	0.20
800–630	2.4	0.064
630–460	4.7	0.17
584.3 (He I)	0.9	0.03
460–370	0.63	0.03
370–270	10.3	0.65
303.8 (He II)	5.4	0.35
270–205	4.5	0.36
205–153	4.6	0.49
153–100	0.4	0.06
120–80	0.3	0.066
80–40	0.33	0.108

Back to article page