- vsnet-alert - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-alert 27589] 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-alert 27588] 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-alert 27587] 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-alert 27586] ASASSN-23ci ATLAS detection
by Taichi Kato 04 Apr '23

04 Apr '23

ASASSN-23ci ATLAS detection YYYYMMDD(UT) mag observer 20230401.3003 14.328o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.3041 15.971o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.3120 15.310o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.3257 15.225o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.1366 15.639o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.1380 15.685o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.1408 15.609o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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[vsnet-alert 27585] MGAB-V3593 likely superoutburst
by Taichi Kato 02 Apr '23

02 Apr '23

MGAB-V3593 likely superoutburst Supercycle about 110 d. YYYYMMDD(UT) mag observer 20230328.7515 150C (Masayuki Moriyama) 20230329.8188 15.14C (Masayuki Moriyama) 20230331.8535 152C (Masayuki Moriyama)

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[vsnet-alert 27584] ASASSN-20en superoutburst
by Taichi Kato 02 Apr '23

02 Apr '23

ASASSN-20en superoutburst YYYYMMDD(UT) mag observer 20230323.3857 16.638o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230323.3898 16.739o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230323.3996 16.723o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230323.4097 16.842o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.3907 17.194o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.3949 17.211o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.4023 16.940o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.4074 17.066o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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[vsnet-alert 27583] ASASSN-20er most likely superoutburst (almost faded)
by Taichi Kato 02 Apr '23

02 Apr '23

ASASSN-20er most likely superoutburst (almost faded) Superoutburst + rebrightening in 2020 May (ATLAS data). YYYYMMDD(UT) mag observer 20230327.2091 16.435o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.2109 16.531o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.2169 16.464o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.2363 16.555o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230330.0080 19.594c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.2363 18.916o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.2400 18.780o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.2529 19.048o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.2561 19.103o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.0006 19.007o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.0025 19.189o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.0043 18.753o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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[vsnet-alert 27582] SU Tau started fading?
by Taichi Kato 02 Apr '23

02 Apr '23

SU Tau started fading? Sato-san has pointed out the gradual fading. YYYYMMDD(UT) mag observer 20230318.8813 100 (Eddy Muyllaert) 20230319.439 105 (Takuichiro Onishi) 20230319.4497 10.13V (Minoru Sato) 20230319.549 101 (Yoshiyasu Sato) 20230319.8153 99 (Jose Ripero) 20230320.4490 10.18V (Minoru Sato) 20230321.8132 101 (Eddy Muyllaert) 20230325.4272 10.35V (Minoru Sato) 20230326.5031 103cG (Yutaka Maeda) 20230326.5736 104V (Masayuki Moriyama) 20230327.4096 10.52V (Minoru Sato) 20230327.8340 100 (Eddy Muyllaert) 20230328.4183 10.55V (Minoru Sato) 20230328.5680 105V (Masayuki Moriyama) 20230329.4157 10.59V (Minoru Sato) 20230329.8438 100 (Eddy Muyllaert) 20230330.4337 10.66V (Minoru Sato) 20230330.451 104 (Tsuneo Horie) 20230331.437 104 (Tsuneo Horie) 20230331.465 107 (Hiroyuki Maehara) 20230331.5062 106cG (Yutaka Maeda) 20230331.5983 107V (Masayuki Moriyama) 20230401.542 111 (Takuichiro Onishi)

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[vsnet-alert 27581] ASASSN-23bx superhump period
by Taichi Kato 01 Apr '23

01 Apr '23

ASASSN-23bx superhump period The superhump period is either 0.05932(5) d or 0.05624(4) d. Observers: Josch Hambsch and Tonny Vanmunster.

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[vsnet-alert 27580] TCPJ17233734+1902555 ATLAS data
by Taichi Kato 01 Apr '23

01 Apr '23

TCPJ17233734+1902555 ATLAS data ATLAS may have recorded the object still on the rise. http://cbat.eps.harvard.edu/unconf/followups/J17233734+1902555.html YYYYMMDD(UT) mag observer 20230330.3072 17.882o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.5724 15.554o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.5742 15.572o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.5789 15.450o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.5843 15.531o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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