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Table 2

Best-fit spectral parameters (from 300 MeV to 3 TeV) with the associated errors obtained for G150.3+4.5 and 4FGL J0426.5+5434 using a logarithmic parabola spectrum, as defined in Eq. (2).

N0 (ph cm−2 s−1 MeV−1) α β E0 (MeV) Φ F
G150.3+4.5 - Gaussian (7.78 ± 0.46stat ± 1.61syst) × 10−14 1.62 ± 0.04stat ± 0.22syst 0.07 ± 0.02stat ± 0.02syst 8973.8
             
4FGL J0426.5+5434 (1.24 ± 0.06stat ± 0.07syst) × 10−11 2.48 ± 0.08stat ± 0.10syst 0.41 ± 0.08stat ± 0.11syst 651.2
             
G150.3+4.5 - Disk (6.58 ± 0.40stat ± 1.20syst) × 10−14 1.68 ± 0.04stat ± 0.21syst 0.06 ± 0.02stat ± 0.03syst 8973.8
             
4FGL J0426.5+5434 (1.22 ± 0.06stat ± 0.06syst) × 10−11 2.47 ± 0.08stat ± 0.11syst 0.41 ± 0.08stat ± 0.12syst 651.2

Notes. The first two and lasttwo lines are the parameters obtained when describing the emission from G150.3+4.5 with a Gaussian and a disk respectively. Φ and F are the integral flux and energy flux from 300 MeV to 3 TeV in units of 10−9 cm−2 s−1 and 10−11 erg cm−2 s−1, respectively.

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