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Table 2
Spectral slope of the nucleus of 67P, according to the spectral slope definition of Delsanti et al. (2001), derived from the literature and the data presented here.
| Date | Slope (%/100nm) | Wavel. range (nm) | α [°] | Reference |
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| April 2004 | 12 ± 2 | 545−797 | 2.1 | Tubiana et al. (2008) |
| June 2004 | 5 ± 3 | 545−797 | 10.3 | Tubiana et al. (2008) |
| May 2006 | 11 ± 2 | 545−797 | 0.5−1.3 | Tubiana et al. (2008) |
| May 2006 | 11 ± 2 | 500−850 | 0.5−1.3 | Tubiana et al. (2008) |
| July 2007 | 10 ± 2 | 545−797 | 6.0 | Tubiana et al. (2011) |
| July 2007 | 11 ± 1 | 500−850 | 6.0 | Tubiana et al. (2011) |
| July 2007 | 10 ± 1 | 550−650 | 6.0 | Lowry et al. (2012) |
| 21 July 2014 | 11.2 ± 0.3 | 535−882 | 4.8−5.4 | This work |
| 25 July 2014 | 11.3 ± 0.3 | 535−882 | 2.2 | This work |
| 28−29 July 2014 | 11.5 ± 0.5 | 535−882 | 1.3 | This work |
| 1 Aug. 2014 | 12.2 ± 0.3 | 535−882 | 9.0−11.5 | This work |
| 3 Aug. 2014 | 14.7 ± 0.7 | 535−882 | 28−36 | This work |
| 3 Aug. 2014 | 15.6 ± 0.9 | 535−882 | 40−41 | This work |
| 6 Aug. 2014 | 15.8 ± 0.4 | 535−882 | 50−54 | This work |
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