Optical Photometric Observations of M31N 2008-12a: Pre- and Post-maximum of the 2016 Eruption
ATel #9891; H. Naito, F. Watanabe (Nayoro Observatory), Y. Sano, K. Kuramoto (Hokkaido University), K. Itagaki (Itagaki Observatory), S. Kiyota (VSOLJ), A. Arai (Kyoto Sangyo University), K. Matsumoto, N. Kojiguchi, Y. Sugiura (Osaka Kyoiku University), H. Maehara (NAOJ), K. Nishiyama, F. Kabashima (Miyaki-Argenteus Observatory), M. Henze (IEEC/CSIC), M. J. Darnley (LJMU), A. W. Shafter (SDSU), M. Kato (Keio University), for a larger collaboration
on 22 Dec 2016; 05:17 UT
Credential Certification: Hiroyuki Maehara (h.maehara@oao.nao.ac.jp)
Subjects: Optical, Cataclysmic Variable, Nova, Transient, Variables
We report additional multicolor photometry of the 2016 outburst of the
remarkable recurrent nova M31N 2008-12a (ATel #9848, #9852, #9853, #9857,
#9861, #9864, #9865, #9872, #9874, #9881 see Darnley et al. 2014,
2015,
2016
and Henze et al.
2014,
2015a,
2015b
for comprehensive multi-wavelength light curves of previous eruptions).
The magnitudes and upper limits for the nova are given in the table below.
We performed a reanalysis of the data taken on Dec 12.459 and found that
the nova was detected at the magnitude of 18.4 +/- 0.2.
Date UT Filter Magnitude Site
2016 Dec 11.34 none > 19.0 Nayoro Observatory, Japan (*1)
2016 Dec 11.37115 V > 19.1 Kiso Observatory, Japan (*2)
2016 Dec 11.38238 Rc > 18.0 Okayama Astrophysical Observatory, Japan (*3)
2016 Dec 11.389 Rc > 18.8 Osaka Kyoiku University, Japan (*4)
2016 Dec 11.47962 none > 19.0 Miyaki-Argenteus Observatory, Japan (*5)
2016 Dec 12.0909 C > 18.3 New Mexico Skies, USA (*6)
2016 Dec 12.459 none 18.4 +/- 0.2 Itagaki Observatory (Yamagata station), Japan (*7)
2016 Dec 12.7822 C 17.85 +/- 0.10 AstroCamp Observatory, Spain (*8-1)
2016 Dec 12.9782 C 17.91 +/- 0.14 AstroCamp Observatory, Spain (*8-2)
2016 Dec 13.1092 C 18.06 +/- 0.07 New Mexico Skies, USA
2016 Dec 13.7976 C 18.79 +/- 0.23 AstroCamp Observatory, Spain (*8-1)
2016 Dec 14.1390 C 19.11 +/- 0.10 New Mexico Skies, USA
2016 Dec 14.378 none 19.3 +/- 0.2 Itagaki Observatory (Okayama station), Japan (*9)
2016 Dec 14.38311 Rc > 16.3 Okayama Astrophysical Observatory, Japan
2016 Dec 14.43503 V > 18.2 Kiso Observatory, Japan
2016 Dec 14.47 Rc 19.1 +/- 0.1 Osaka Kyoiku University, Japan
2016 Dec 15.36662 V > 20.0 Kiso Observatory, Japan
2016 Dec 15.37 R > 20.2 Nayoro Observatory, Japan
2016 Dec 15.44 Ic > 21.0 Nayoro Observatory, Hokkaido University, Japan (*10)
2016 Dec 15.50447 Rc > 18.0 Okayama Astrophysical Observatory, Japan
2016 Dec 16.44862 none > 20.2 Miyaki-Argenteus Observatory, Japan
2016 Dec 16.50 Rc > 18.7 Osaka Kyoiku University, Japan
2016 Dec 17.467 none > 20.5 Itagaki Observatory (Okayama station), Japan
2016 Dec 17.52 Rc > 19.3 Osaka Kyoiku University, Japan
2016 Dec 18.46 Rc > 20.6 Nayoro Observatory, Hokkaido University, Japan
2016 Dec 19.42 none > 20.5 Nayoro Observatory, Japan
2016 Dec 19.44 Rc > 20.5 Nayoro Observatory, Hokkaido University, Japan
2016 Dec 19.458 Ic > 21.8 Nayoro Observatory, Hokkaido University, Japan
Filter "C" magnitudes are obtained from the observations with a luminescent (IR cut) filter.
Telescopes and instruments:
1. 0.4-m f/10 Meili telescope + SBIG STL-1001E CCD
2. 1.05-m Schmidt telescope + KWFC (Sako et al. 2012, SPIE, 8446, 84466L)
3. 0.5-m f/6.5 MITSuME telescope + Apogee Alta U6 (Kotani et al. 2005, Il Nuovo Cimento C, 58, 755)
4. 0.51-m f/12 + Andor DW936N-BV
5. 0.5-m f/6.8 + FLI 1001E CCD
6. 0.5-m f/4.5 CDK astrograph + FLI-PL11002M CCD
7. 0.6-m f/5.7 + CCD
8-1. 0.43-m f/6.8 CDK astrograph + SBIG STL-11000M CCD
8-2. 0.32-m f/8.0 CDK astrograph + SBIG STXL-6303E CCD
9. 0.5-m f/6.8 + CCD
10. 1.6-m f/12 Pirka telescope + MSI (Watanabe et al. 2012, SPIE, 8446, 2O)
