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

[vsnet-alert 26700] Re: PKS 2258-022 = MGAB-V1095: short-period variation
by Taichi Kato 06 Apr '22

06 Apr '22

Re: PKS 2258-022 = MGAB-V1095: short-period variation Please disregard this message. I analyzed the data of MGAB-V1081.

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[vsnet-alert 26699] PKS 2258-022 = MGAB-V1095: short-period variation
by Taichi Kato 06 Apr '22

06 Apr '22

PKS 2258-022 = MGAB-V1095: short-period variation This object is identified with a radio-loud QSO (z=0.778). However, the ZTF data show short-term variations. The data were well expressed by a period of 0.1417938(2) d. The profile resembles that of a polar. There is no indication of z=0 feature in the SDSS spectrum. Very strange object!

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[vsnet-alert 26698] NGCA-V19: polar
by Taichi Kato 05 Apr '22

05 Apr '22

NGCA-V19: polar From ZTF data. Porb=0.0557435(1) d. Broad single maximum per cycle.

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[vsnet-alert 26697] V803 Cen likely superoutburst
by Taichi Kato 05 Apr '22

05 Apr '22

V803 Cen likely superoutburst YYYYMMDD(UT) mag observer 20220323.440 154 (Rod Stubbings) 20220323.7501 <140C (Masayuki Moriyama) 20220331.458 135 (Rod Stubbings) 20220403.0973 12.95C (Masao Funada)

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[vsnet-alert 26696] ASASSN-18jc superoutburst
by Taichi Kato 05 Apr '22

05 Apr '22

ASASSN-18jc superoutburst YYYYMMDD(UT) mag observer 20220315.8198 <147c (Yutaka Maeda) 20220316.7929 <135c (Yutaka Maeda) 20220401.7444 142c (Yutaka Maeda) 20220401.7444 142c (Yutaka Maeda) 20220403.7470 142cG (Yutaka Maeda) 20220403.7470 142cG (Yutaka Maeda) Gaia22bhj AT2022gjk 2022-03-25 16:19:00 260.08954 -15.15801 13.44 19.23 0.15 CV 2022-04-04 08:06:21 6 mag outburst in confirmed CV ASASSN-18jc http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22bhj/

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[vsnet-alert 26695] Gaia21fgn faded and brightened
by Taichi Kato 04 Apr '22

04 Apr '22

Gaia21fgn faded and brightened According to observations by Itoh-san and Tonny Vanmunster, this object once haded to 17.0 but has brightened to 16.2. Vanmunster's observations showed large-amplitude (0.3 mag) variations.

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[vsnet-alert 26694] ATLAS22jee = Gaia22bfc: likely CV outburst
by Taichi Kato 02 Apr '22

02 Apr '22

ATLAS22jee = Gaia22bfc: likely CV outburst --- AT2022evo (= ATLAS22jee) ------- 17:0:26.44 9:45:12.6 2022-03-26.35 15.81 SDSS DSS VIZIER ------- known SN candidate, z unkown, discovered 2022/03/16.621, Type unknown http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22bfc/ Gaia22bfc AT2022evo 2022-03-22 03:54:25 255.11003 9.75379 15.83 unknown 2022-04-01 07:36:17 GALEX: 170026.451 +094513.27 (2000.0) GALEX_DR5_6375524993053230574 NUV=21.793(0.406) FUV=-(-)

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[vsnet-alert 26693] GQ CVn outburst
by Taichi Kato 02 Apr '22

02 Apr '22

GQ CVn outburst Rapidly fading in Gaia data? Last superoutburst was in 2021 Apr.-May. Gaia22bfh AT2021lfd 2022-03-21 20:53:05 190.80018 43.53315 15.13 18.21 1.57 CV 2022-04-01 07:36:45 6 mag outburst in confirmed CV ASASSN-13ao = GQ CVn http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22bfh/

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[vsnet-alert 26692] Gaia22bfp
by Taichi Kato 02 Apr '22

02 Apr '22

Gaia22bfp Bright transient (15.2) without a counterpart. Likely large-amplitude dwarf nova. http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22bfp/ Gaia22bfp AT2022fpe 2022-03-22 16:55:55 307.70282 -35.85026 15.16 unknown 2022-04-01 18:33:08 bright blue hostless transient

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[vsnet-alert 26691] ASASSN-22el: UXOR star with very rare fading?
by Taichi Kato 02 Apr '22

02 Apr '22

ASASSN-22el: UXOR star with very rare fading? ASASSN-22el --- ------- 7:37:35.79 -4:31:17.1 2022-04-1.2 13.6 SDSS DSS VIZIER ------- Deep eclipse event, matches to PS1 g=13.3, The full ASAS-SN light curve and the last 100 days. 073735.745 -043117.54 (2000.0) Gaia_EDR3_3057084127033805824 plx=0.251(0.019) dismod=13.0 pmra=-1.772(0.017) pmdec=0.616(0.013) G=12.964 BP=13.255 RP=12.503 2MASS 073735.744 -043117.53 (2000.0) 11.866 11.489 11.384 Short fading in 2017 Sep.

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