[vsnet-chat 7889] Intermediate polar: V1323 Her: Return to High Luminosity State

[Ivan Andronov]

Intermediate polar: V1323 Her: Return to High Luminosity State

I.L.Andronov (ONMU, Ukraine), P.Dubovsky (VAO, Slovakia), Joh-Na Yoon (CBNU, Korea), Yonggi Kim (CBNU, Korea)

The intermediate polar V1323 Her = RXS J180340.0+401214 returned from its faint state 19.4-20.5 mag (mean brightness during the run, the instrumental system close to R or clear filter) <a href="http://ooruri.kusastro.kyoto-u.ac.jp/mailarchive/vsnet-alert/16958">(vsnet-alert 16958).</a> On March 1, 2014, the brightness was 17.50 (clear filter) and next night 17.8 (R). During previous observations on January 24, the object was 19.6. 

The characteristics of the runs obtained before/after a switch between the high and low states are:
Max BJD 24.....      Semi-amplitude "mag"  Obs. state (Max-T0)/P
56424.45189+-0.00042  0.129+-0.020  17.44 VAO  high  103449.954+-0.024
56477                               20.63 VAO  low
56597.25412+-0.00211  0.101+-0.074  19.75 VAO  low   113269.945+-0.120
56681                               19.57 VAO  low
56718.60621+-0.00034  0.216+-0.028  17.50 VAO  high  120166.131+-0.019
56719.31009+-0.00104  0.250+-0.091  17.81 CBNU high  120206.131+-0.057
The phases are computed according to the recent ephemeris :
Tmax= 2454604.04449(14)+0.017596986(3).E 
<a href="http://adsabs.harvard.edu/abs/2012arXiv1212.6712B">(Breus et al., 2012).</a>. Our previous study of the object had shown minor switches of the mean brightness between 17.2 to 17.8 <a href="http://adsabs.harvard.edu/abs/2011JKAS...44...89K">(Kim et al., 2012).</a>

The <a href="http://uavso.org.ua/ila/RXJ1803_high_low.gif"> light curves</a> along with their sinusoidal approximations (and tends and harmonics, when statistically significant) and +1 1sigma,+-2sigma error corridors are shown. The software <a href="http://uavso.org.ua/mcv">MCV</a> (I.L.Andronov and A.V.Baklanov, 2004) was used.