March 2023 - vsnet-alert - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-alert 27535] ASASSN-16dc most likely superoutburst
by Taichi Kato 24 Mar '23

24 Mar '23

ASASSN-16dc most likely superoutburst Type from ATLAS data. YYYYMMDD(UT) mag observer 20230310.9206 18.640o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.8490 18.819c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.8542 18.839c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.8581 19.054c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.8795 19.529c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230316.0827 18.815o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230316.0859 18.646o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230316.0917 18.499o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230316.1025 18.485o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.8483 15.160c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.8515 15.144c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.8569 15.112c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.8671 15.069c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.0901 14.676o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.0933 14.694o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.1038 14.721o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.1092 14.747o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.7993 14.724c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.8020 14.746c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.8025 14.704c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.8061 14.719c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.8109 14.710c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.8132 14.691c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.8214 14.568c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.8237 14.545c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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[vsnet-alert 27534] TCPJ06461075+2502415: starting to show superhumps?
by Taichi Kato 23 Mar '23

23 Mar '23

TCPJ06461075+2502415: starting to show superhumps? The most recent data by Itoh-san (Mar. 22) showed brightening and a possible sign of emerging superhumps. Ordinary superhumps appear to be emerging now.

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[vsnet-alert 27533] AS Pav possible superoutburst
by Taichi Kato 23 Mar '23

23 Mar '23

AS Pav possible superoutburst (SU UMa star almost certain from the ATLAS data) YYYYMMDD(UT) mag observer 20230322.603 148 (Rod Stubbings)

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[vsnet-alert 27532] MGAB-V320 likely superoutburst
by Taichi Kato 21 Mar '23

21 Mar '23

MGAB-V320 likely superoutburst (Frequent superoutbursts in ZTF data) YYYYMMDD(UT) mag observer 20230319.2576 15.47cG (Masao Funada)

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[vsnet-alert 27531] RX Vol superoutburst
by Taichi Kato 21 Mar '23

21 Mar '23

RX Vol superoutburst Josch Hambsch indeed detected superhumps.

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[vsnet-alert 27530] ASASSN-23bl: new SU UMa-type dwarf nova (now faded)
by Taichi Kato 21 Mar '23

21 Mar '23

ASASSN-23bl: new SU UMa-type dwarf nova (now faded) Josch Hambsch has reported observations (and some from Itoh-san). The object faded to 19.5 on Mar. 18. The light curve suggests that the superoutburst plateau stage B-C was likely observed (when superhump amplitude becomes small). A PDM analysis of the superoutburst plateau yielded the most likely period of 0.06348(5) d and an amplitude of 0.07 mag (Due to the low sampling rate, the waveform became apparent only after the period analysis). The object is likely a WZ Sge star based on the amplitude. The period may suggest multiple rebrightenings if it is the case.

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[vsnet-alert 27529] MASTER OT J051529.15+560532.0 superoutburst
by Taichi Kato 20 Mar '23

20 Mar '23

MASTER OT J051529.15+560532.0 superoutburst YYYYMMDD(UT) mag observer 20230313.500 <178C (Mitsutaka Hiraga) 20230313.5395 <159c (Yutaka Maeda) 20230314.5100 <164c (Yutaka Maeda) 20230314.6089 170C (Masayuki Moriyama) 20230315.5258 <159c (Yutaka Maeda) 20230316.5502 132c (Yutaka Maeda) 20230316.5502 132c (Yutaka Maeda) 20230318.6351 138C (Masayuki Moriyama)

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[vsnet-alert 27528] DV Sco likely superoutburst
by Taichi Kato 20 Mar '23

20 Mar '23

DV Sco likely superoutburst YYYYMMDD(UT) mag observer 20230317.612 146 (Rod Stubbings) 20230318.8346 15.32C (Masayuki Moriyama)

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[vsnet-alert 27527] ASASSN-23bn superhump period
by Taichi Kato 19 Mar '23

19 Mar '23

ASASSN-23bn superhump period Using Peter Starr's new data, the superhump period (stages A+B combined) is determined to be 0.05977(2) d.

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[vsnet-alert 27526] Standstill-like behavior in MGAB-V306
by Taichi Kato 19 Mar '23

19 Mar '23

Standstill-like behavior in MGAB-V306 (Not UGSU:) YYYYMMDD(UT) mag observer 20230308.8255 18.898o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230308.8287 18.752o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230308.8410 18.450o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230309.8426 18.219o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230309.8526 18.144o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230309.8558 18.277o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230309.8657 18.181o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230310.0800 18.276o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230310.0830 17.997o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230310.0835 18.219o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230310.0958 18.260o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230310.1116 18.070o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230310.1121 18.133o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230311.1003 17.975o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230311.1035 18.353o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230311.1141 18.071o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230311.1191 18.161o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230311.1278 17.897o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.8219 18.020c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.8247 17.982c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.8276 18.185c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.8304 18.021c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230313.7965 18.236c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230313.7996 18.213c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230313.8064 18.073c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230313.8164 18.063c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.0663 18.329o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.0694 18.291o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.0863 18.107o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.1031 18.239o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230315.0440 18.477o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230315.0476 18.500o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230315.0544 18.310o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230315.0647 18.188o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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vsnet-alert March 2023