April 2023 - vsnet-campaign-dn - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-campaign-dn 17132] EY Cyg outburst
by Taichi Kato 08 Apr '23

08 Apr '23

EY Cyg outburst (Long-Porb SS Cyg star) YYYYMMDD(UT) mag observer 20230329.8293 148C (Masayuki Moriyama) 20230401.846 148C (Mitsutaka Hiraga) 20230402.7948 144:cG (Yutaka Maeda) 20230407.7522 11.21V (Kenji Hirosawa) 20230407.7805 112c (Tadashi Kojima)

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[vsnet-campaign-dn 17131] V391 Cam outburst but faded rapidly
by Taichi Kato 07 Apr '23

07 Apr '23

V391 Cam outburst but faded rapidly YYYYMMDD(UT) mag observer 20230329.5516 157C (Masayuki Moriyama) 20230329.8563 <142 (Eddy Muyllaert) 20230331.4954 120cG (Yutaka Maeda) 20230401.5791 139C (Masayuki Moriyama) 20230402.2794 14.804o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230402.2866 14.832o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230402.849 146 (Gary Poyner) 20230402.8604 <142 (Eddy Muyllaert) 20230403.469 154C (Mitsutaka Hiraga) 20230403.850 <150 (Gary Poyner) 20230403.8632 <142 (Eddy Muyllaert) 20230404.8569 <142 (Eddy Muyllaert)

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[vsnet-campaign-dn 17130] AT Cnc rising from standstill
by Taichi Kato 07 Apr '23

07 Apr '23

AT Cnc rising from standstill YYYYMMDD(UT) mag observer 20230318.803 137CV (Klaus Wenzel) 20230318.8826 136 (Eddy Muyllaert) 20230319.019 138 (Gary Poyner) 20230319.058 14.15C (Gary Poyner) 20230319.0596 13.79cG (Masao Funada) 20230319.5951 138C (Masayuki Moriyama) 20230321.8167 137 (Eddy Muyllaert) 20230322.516 <126 (Tsuneo Horie) 20230323.015 139 (Gary Poyner) 20230324.014 138 (Gary Poyner) 20230324.785 136CV (Klaus Wenzel) 20230326.5809 133cG (Yutaka Maeda) 20230326.6217 137C (Masayuki Moriyama) 20230327.6235 137C (Masayuki Moriyama) 20230327.794 135 (Klaus Wenzel) 20230327.8361 136 (Eddy Muyllaert) 20230328.6193 134cG (Yutaka Maeda) 20230328.6193 134cG (Yutaka Maeda) 20230329.5673 136C (Masayuki Moriyama) 20230329.8576 135 (Eddy Muyllaert) 20230331.5831 132cG (Yutaka Maeda) 20230331.5831 132cG (Yutaka Maeda) 20230401.6648 134C (Masayuki Moriyama) 20230402.4952 129cG (Yutaka Maeda) 20230402.8701 130 (Eddy Muyllaert) 20230402.871 130 (Gary Poyner) 20230403.876 129 (Gary Poyner) 20230403.8771 130 (Eddy Muyllaert) 20230404.8694 129 (Eddy Muyllaert) 20230405.810 128CV (Klaus Wenzel)

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[vsnet-campaign-dn 17129] ASASSN-14dm superoutburst
by Taichi Kato 07 Apr '23

07 Apr '23

ASASSN-14dm superoutburst 20230328.2272 19.642o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230330.9737 14.874c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230330.9760 14.883c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230330.9791 14.894c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230330.9863 14.921c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230402.0353 15.305o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230402.0391 15.277o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230402.0458 15.246o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230402.0756 15.238o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.2035 15.462o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.2058 15.420o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.2090 15.386o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.2154 15.318o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230404.9333 15.597o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230404.9351 15.584o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230404.9393 15.653o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230405.2507 15.27cG (Masao Funada)

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[vsnet-campaign-dn 17128] V418 Ser outburst
by Taichi Kato 06 Apr '23

06 Apr '23

V418 Ser outburst Too faint for a superoutburst? Superoutburst in 2022 June. YYYYMMDD(UT) mag observer 20230402.6208 <156c (Yutaka Maeda) 20230403.1695 <175C (Masao Funada) 20230404.4165 16.615o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230405.1972 16.447o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230405.1999 16.407o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230405.2054 16.404o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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[vsnet-campaign-dn 17127] Re: TCP J17233734+1902555 early superhumps?
by Taichi Kato 04 Apr '23

04 Apr '23

Re: TCP J17233734+1902555 early superhumps? After inclusion of Josch Hambsch's new data, the period of 0.05440(3) d (alias of the previous report) has become more likely. The current profile is that of early superhumps (double maxima with the brighter secondary peak).

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[vsnet-campaign-dn 17126] ASASSN-23cc outburst continues
by Taichi Kato 04 Apr '23

04 Apr '23

ASASSN-23cc outburst continues YYYYMMDD(UT) mag observer 20230319.6298 14.459o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230319.6341 14.415o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230319.6393 14.381o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230319.6507 14.359o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230329.8096 160:C (Masayuki Moriyama) 20230330.6206 16.155o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230330.6245 16.151o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230330.6313 16.119o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.8559 <155C (Masayuki Moriyama) 20230401.8338 161C (Masayuki Moriyama) 20230402.4645 16.223zr (ZTF Alert DC mag (Masci+ 2019)) 20230402.8148 161C (Masayuki Moriyama)

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[vsnet-campaign-dn 17125] TCP J17233734+1902555 early superhumps?
by Taichi Kato 04 Apr '23

04 Apr '23

TCP J17233734+1902555 early superhumps? Kiyota-san. Itoh-san, Tonny Vanmunster and Sano-san have reported observations. Although there were irregularities, a period of 0.06067(3) d was obtained (amplitude 0.09 mag). The profile is not inconsistent with early superhumps. Further observations will establish the nature of variations and period.

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[vsnet-campaign-dn 17124] ASASSN-23cl ATLAS detection
by Taichi Kato 04 Apr '23

04 Apr '23

ASASSN-23cl ATLAS detection YYYYMMDD(UT) mag observer 20230401.1327 15.485c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.1391 15.442c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.1433 15.574c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.1562 16.105c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.3214 16.461o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.3245 16.683o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.3311 16.551o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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[vsnet-campaign-dn 17123] ASASSN-23cj ATLAS detection
by Taichi Kato 04 Apr '23

04 Apr '23

ASASSN-23cj ATLAS detection Likely SU UMa (WZ Sge). YYYYMMDD(UT) mag observer 20230328.1333 17.096c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230328.1448 16.964c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230328.1516 16.986c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230328.1538 17.030c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230329.3475 17.433o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230329.3679 17.568o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230329.3711 17.546o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230329.3854 17.393o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.2758 17.872o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.2976 17.970o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.3110 17.769o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.1228 18.100o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.1261 17.978o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.1376 17.968o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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vsnet-campaign-dn April 2023