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

[vsnet-newvar 10032] ASASSN-23df ATLAS detection
by Taichi Kato 28 Apr '23

28 Apr '23

ASASSN-23df ATLAS detection Fainter outburst in 2019 Jan. in ATLAS? YYYYMMDD(UT) mag observer 20230426.7416 16.815o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230426.7447 16.796o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230426.7504 16.893o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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[vsnet-newvar 10031] MASTER OT J172758.09+380021.5 likely superoutburst
by Taichi Kato 28 Apr '23

28 Apr '23

MASTER OT J172758.09+380021.5 likely superoutburst Unusual ER UMa-like object. See also https://arxiv.org/abs/2304.07695 YYYYMMDD(UT) mag observer 20230416.6745 <149c (Yutaka Maeda) 20230416.8091 <145C (Masayuki Moriyama) 20230417.4991 17.983g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230417.6905 <154c (Yutaka Maeda) 20230421.7121 <157c (Yutaka Maeda) 20230422.6860 <160c (Yutaka Maeda) 20230426.6738 145cG (Yutaka Maeda) 20230426.7837 147C (Masayuki Moriyama)

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[vsnet-newvar 10030] TCP J21032164+1823342 ATLAS detection
by Taichi Kato 27 Apr '23

27 Apr '23

TCP J21032164+1823342 ATLAS detection http://cbat.eps.harvard.edu/unconf/followups/J21032164+1823342.html YYYYMMDD(UT) mag observer 20230425.6022 14.457c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230425.6133 14.418c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230425.6233 14.377c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230425.6266 14.360c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 210321.579 +182331.13 (2000.0) Gaia_DR2_1765097658756842496 plx=1.939(0.699) dismod=8.6 pmra=8.626(1.215) pmdec=6.960(1.325) G=20.116 BP=20.364 RP=19.773 210321.580 +182331.13 (2000.0) Gaia_EDR3_1765097658756842496 plx=2.345(0.522) dismod=8.1 pmra=8.359(0.509) pmdec=5.870(0.502) G=20.078 BP=20.391 RP=19.840 210321.585 +182330.93 (2000.0) GALEX_DR5_6376510164063749933 NUV=21.075(0.277) FUV=21.265(0.410)

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[vsnet-newvar 10029] Inight et al.'s SDSS CV paper
by Taichi Kato 27 Apr '23

27 Apr '23

Dear Sebastian and all, Regarding the recent SDSS CVs, Inight, K.; Gaensicke, B.; Breedt, E.; et al., 2023, A catalogue of cataclysmic variables from 20 years of the Sloan Digital Sky Survey with new classifications, periods, trends and oddities 2023arXiv230406749I is very noisy in classification of dwarf novae. They give too many "WZ Sge:" (there are only few "SU UMa:"). Some objects were given "WZ Sge:" even though there have been multiple outbursts in recent years. They probably classified almost short-Porb objects as WZ Sge: I would recommend you to check past activities in adopting their classifications.

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[vsnet-newvar 10028] CRTSJ105550.1+095621 superhump?
by Taichi Kato 26 Apr '23

26 Apr '23

CRTSJ105550.1+095621 superhump? Josch Hambsch reported observations for three hours. Variations compatible with superhumps were detected. Further observations are needed for confirmation.

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[vsnet-newvar 10027] ATLAS23hxn recent data
by Taichi Kato 26 Apr '23

26 Apr '23

ATLAS23hxn recent data SU UMa or WZ Sge? YYYYMMDD(UT) mag observer 20230415.3771 15.802o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230415.3800 15.793o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230415.3877 15.788o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230415.4005 15.800o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230417.1048 16.123o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230417.1222 16.130o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230417.1251 16.116o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230417.1304 16.098o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230417.1649 16.113o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230418.3513 16.035c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230418.3541 16.042c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230418.3673 16.042c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230418.3729 16.020c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230420.1370 16.525o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230420.1499 16.599o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230420.1552 16.691o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230420.1630 16.606o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230424.3267 16.694c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230424.3299 16.722c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230424.3351 16.730c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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[vsnet-newvar 10026] ASASSN-23da likely superoutburst
by Taichi Kato 26 Apr '23

26 Apr '23

ASASSN-23da likely superoutburst ATLAS apparently detected superhumps. YYYYMMDD(UT) mag observer 20230417.9655 14.998o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230417.9673 15.025o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230417.9703 14.993o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230418.0018 14.996o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230419.1933 15.261c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230419.1961 15.282c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230419.1989 15.266c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230419.2041 15.243c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230419.4206 15.302c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230425.3746 16.373c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230425.3773 16.426c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230425.3835 16.438c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230425.3946 16.417c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230425.4011 16.258c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230425.4043 16.267c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230425.4075 16.297c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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[vsnet-newvar 10025] CRTS J094327.3-272039 superoutburst
by Taichi Kato 25 Apr '23

25 Apr '23

CRTS J094327.3-272039 superoutburst YYYYMMDD(UT) mag observer 20230408.5526 <163C (Masayuki Moriyama) 20230410.5879 <162C (Masayuki Moriyama) 20230413.5294 <156C (Masayuki Moriyama) 20230416.5510 <157C (Masayuki Moriyama) 20230424.599 129 (Rod Stubbings) 20230425.531 129 (Rod Stubbings)

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[vsnet-newvar 10024] ASASSN-19hr superoutburst
by Taichi Kato 25 Apr '23

25 Apr '23

ASASSN-19hr superoutburst Precursor + superoutburst? YYYYMMDD(UT) mag observer 20230416.7384 <154c (Yutaka Maeda) 20230417.7544 <151c (Yutaka Maeda) 20230421.7763 154:c (Yutaka Maeda) 20230421.7763 154:c (Yutaka Maeda) 20230422.7504 <158c (Yutaka Maeda) 20230423.1943 14.10C (Masao Funada)

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[vsnet-newvar 10023] ZTF18aczazlw: AM CVn star with multiple rebrightenings?
by Taichi Kato 25 Apr '23

25 Apr '23

ZTF18aczazlw: AM CVn star with multiple rebrightenings? From ZTF data. Supercycle about a year and with multiple rebrightenings.

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