GCN Circular 19315

Liu Jinzhong (XAO), Zhang, Yu (XAO); Zhang, Xuan (XAO); Niu, Hubiao (XAO); Pu, guangxin (XAO); Ma, shuguo (XAO); Yang, taozhi (XAO); Song, fangfang(XAO), on behalf of the NOWT group report:

This is a time-dominant survey follow-up report of Liu et al. (GCN19208
Not found
 
 
). Each FOV of NOWT was monitored 3 days using standard BVR bands, and it was marked as EWE001, EWE002, EWE003 and EWE004. Note that the calibrated magnitude value of 15 is an assumption as a up-limited magnitude in our caculation. This would imply that EM-trigger of GW sources could not correspond with the brightness targets. Meanwhile all the targets had the value of SNR>10. We reported the photometric variable information during the time-dominant survey as below.

1)Detailed information about the observation of EWE001 (time range: 2016:03:06:13:14:05 to 2016:03:06:23:37:35, 2016:03:08:13:42:24 to 2016:03:08:23:42:55, 2016:03:09:13:15:58 to 2016:03:09:23:27:43)

RA               DEC         Mag(V)       M_err     Variability-type
137.531483       55.002369   15.265       0.0295    eruptive with irregularity
138.630270       55.123970   15.823       0.0950    periodicity
138.598282       54.811173   16.544       0.1485    eruptive with a dip
136.399169       54.822750   16.208       0.1301    cataclysmic with regularity

2)Detailed information about the observation of EWE002 (time range: 2016:03:10:13:16:56 to 2016:03:10:23:06:05, 2016:03:12:13:17:50 to 2016:03:12:23:34:34, 2016:03:13:13:39:14 to 2016:03:13:23:25:10)

RA               DEC         Mag(V)       M_err     Variability-type
149.856039       50.518744   15.258       0.0215    eruptive with a dip
149.570337       49.430700   15.976       0.0590    periodicity
149.823531       50.014876   16.249       0.0566    eruptive with a dip
149.281069       50.077445   17.436       0.1037    fast oscillation
149.828243       50.145567   17.894       0.1390    eruptive with a dip
149.831656       50.168234   16.148       0.0402    eruptive with double dips
150.894291       50.252967   16.218       0.1062    pulsating
149.269826       50.234558   16.994       0.1039    eruptive with double dips

3)Detailed information about the observation of EWE003 (time range: 2016:03:21:14:07:32 to 2016:03:21:23:17:36, 2016:03:22:13:28:44 to 2016:03:22:22:57:18, 2016:03:23:13:38:56 to 2016:03:23:22:30:22)

RA               DEC         Mag(V)       M_err     Variability-type
151.734041       49.563742   15.804       0.1241    eruptive with double dips
151.413957       49.553095   15.107       0.1846    periodicity

4)Detailed information about the observation of EWE004 (time range: 2016:03:24:13:30:26 to 2016:03:24:22:41:01, 2016:03:27:15:12:19 to 2016:03:27:23:05:59, 2016:03:28:16:09:54 to 2016:03:28:23:05:07)

RA               DEC         Mag(V)       M_err     Variability-type
152.055858       48.805903   15.183       0.1058    periodicity
152.626914       48.925828   15.193       0.0503    fast oscillation
152.917431       48.942816   15.131       0.0606    eruptive with a tuber
151.415220       49.552819   15.237       0.0741    eclipsing
151.142881       49.586450   15.450       0.0488    eruptive with three dips
151.936807       48.837133   15.695       0.0494    fast oscillation
152.207676       48.715853   17.186       0.1914    periodicity

Note: 21 targets can be found as the photometric variability, and the follow-up of spectrograph observation should be important next. Analysis is ongoing.


--
N: Jinzhong Liu, PhD
O: Main building, 213
P: 150, Science 1-Street, Urumqi, Xinjiang 830011, China
T: 86 991 3689027
D: 2012-07-14
E: optics@xao.ac.cn