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

[vsnet-newvar 9006] MASTER OT J030227.28+191754.5: period of early superhumps
by Taichi Kato 02 Dec '21

02 Dec '21

MASTER OT J030227.28+191754.5: period of early superhumps Kyoto U team, Itoh-san, Kiyota-san, Tamas Tordai, Osaka Kyoiku U team, Josch Hambsch and Tonny Vanmunster have reported observations. The period of early superhumps is 0.05985(3) d (full amplitude 0.03 mag). During the rising phase, this period was not detected.

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[vsnet-newvar 9005] TCP J20441708-2037591: new SU UMa-type dwarf nova
by Taichi Kato 02 Dec '21

02 Dec '21

TCP J20441708-2037591: new SU UMa-type dwarf nova Josch Hambsch, Itoh-san and Kiyota-san have reported observations. According to the data by Hambsch, this object started to show superhumps on Nov. 30. Due to the short visibility in the evening sky, the superhump period has not been yet determined.

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[vsnet-newvar 9004] MLSJ034713.8+161108: VY Scl star
by Taichi Kato 01 Dec '21

01 Dec '21

MLSJ034713.8+161108: VY Scl star = ASASSN-VJ034713.87+161108.9 = ATOJ056.8078+16.1856 = ZTFJ034713.88+161108.1 = LAMOST J072304.77+020437.4 https://arxiv.org/abs/2111.13049 Deep fading in late 2019 to 2020 in ZTF data.

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[vsnet-newvar 9003] ATOJ110.7699+02.0770: NL
by Taichi Kato 01 Dec '21

01 Dec '21

ATOJ110.7699+02.0770: NL = LAMOST J072304.77+020437.4 https://arxiv.org/abs/2111.13049 2MASS 072304.781 +020437.55 (2000.0) 15.021 14.850 14.858 072304.7 +020437 (2000.0) ATOJ110.7699+02.0770 dubious c=15.143 o=15.220 P(LS)=0.606047 rms=0.07 072304.7 +020437 (2000.0) ZTFJ072304.78+020437.3 g=15.507 (15.309-15.711) P=0.0070 072304.780 +020437.25 (2000.0) Gaia_DR2_3135760162593729792 plx=0.615(0.047) dismod=11.1 pmra=2.421(0.085) pmdec=-4.871(0.068) G=15.136 BP=15.107 RP=14.917 072304.781 +020437.24 (2000.0) Gaia_EDR3_3135760162593729792 plx=0.692(0.032) dismod=10.8 pmra=2.383(0.036) pmdec=-4.847(0.031) G=15.131 BP=15.152 RP=14.947 Flickering in ZTF data.

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[vsnet-newvar 9002] BMAM-V708: AM:
by Taichi Kato 01 Dec '21

01 Dec '21

BMAM-V708: AM: = LAMOST J021633.89+251346.5 https://arxiv.org/abs/2111.13049 Strong He II. The ZTF light curve doesn't look like a dwarf nova.

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[vsnet-newvar 9001] PS1-3PIJ211249.93+374225.9: CV:
by Taichi Kato 01 Dec '21

01 Dec '21

ATOJ305.7515+06.5284: NL = LAMOST J202300.37+063142.4 https://arxiv.org/abs/2111.13049 202300.380 +063142.41 (2000.0) Gaia_DR2_4249755657041989376 plx=0.568(0.048) dismod=11.2 pmra=-2.391(0.074) pmdec=-4.284(0.066) G=15.341 BP=15.292 RP=15.264 202300.380 +063142.40 (2000.0) Gaia_EDR3_4249755657041989376 plx=0.487(0.039) dismod=11.6 pmra=-2.371(0.050) pmdec=-4.228(0.033) G=15.310 BP=15.303 RP=15.243 202300.370 +063142.38 (2000.0) GALEX_DR5_6379360087465531119 NUV=15.566(0.009) FUV=15.666(0.025)

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[vsnet-newvar 9000] ATOJ305.7515+06.5284: NL
by Taichi Kato 01 Dec '21

01 Dec '21

ATOJ305.7515+06.5284: NL = LAMOST J202300.37+063142.4 https://arxiv.org/abs/2111.13049 202300.380 +063142.41 (2000.0) Gaia_DR2_4249755657041989376 plx=0.568(0.048) dismod=11.2 pmra=-2.391(0.074) pmdec=-4.284(0.066) G=15.341 BP=15.292 RP=15.264 202300.380 +063142.40 (2000.0) Gaia_EDR3_4249755657041989376 plx=0.487(0.039) dismod=11.6 pmra=-2.371(0.050) pmdec=-4.228(0.033) G=15.310 BP=15.303 RP=15.243 202300.370 +063142.38 (2000.0) GALEX_DR5_6379360087465531119 NUV=15.566(0.009) FUV=15.666(0.025)

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[vsnet-newvar 8999] CSSJ032034.5+203607: AM
by Taichi Kato 01 Dec '21

01 Dec '21

CSSJ032034.5+203607: AM = LAMOST J032034.51+203607.2 https://arxiv.org/abs/2111.13049 Strong He II. Classified as a polar in this paper. The orbital period would be half of 0.320948 d (CSS). 032034.545 +203607.02 (2000.0) Gaia_DR2_61121202850354048 plx=0.979(0.099) dismod=10.0 pmra=13.134(0.205) pmdec=3.557(0.139) G=16.790 BP=17.271 RP=16.077 032034.546 +203607.02 (2000.0) Gaia_EDR3_61121202850354048 plx=1.092(0.077) dismod=9.8 pmra=13.266(0.093) pmdec=3.458(0.068) G=16.791 BP=17.302 RP=16.062

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[vsnet-newvar 8998] ASASSN-V J040901.83+323955.6: likely CV
by Taichi Kato 01 Dec '21

01 Dec '21

ASASSN-V J040901.83+323955.6: likely CV = LAMOST J040901.83+323955.6 https://arxiv.org/abs/2111.13049 Strong He II and cannot be YSO. 040901.836 +323955.73 (2000.0) Gaia_DR2_169806552869700224 plx=0.289(0.042) dismod=12.7 pmra=1.557(0.089) pmdec=-2.252(0.041) G=14.615 BP=14.749 RP=14.291 040901.836 +323955.73 (2000.0) Gaia_EDR3_169806552869700224 plx=0.359(0.026) dismod=12.2 pmra=1.631(0.030) pmdec=-2.202(0.017) G=14.583 BP=14.739 RP=14.272 Too bright M_V for an ordinary NL?

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[vsnet-newvar 8997] Gaia21fik
by Taichi Kato 30 Nov '21

30 Nov '21

Gaia21fik http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia21fik/ Gaia21fik AT2021afrn 2021-11-15 09:19:56 197.40356 -70.83968 14.85 unknown 2021-11-29 11:52:30 bright blue hostless transient

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