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

[vsnet-alert 27287] PNVJ06245297+0208207: no apparent superhumps yet
by Taichi Kato 07 Jan '23

07 Jan '23

PNVJ06245297+0208207: no apparent superhumps yet Tamas Tordai has reported observations. No large-amplitude superhumps were present and this object is likely a helium WZ Sge star with a low inclination.

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[vsnet-alert 27286] ATLAS17kol likely superoutburst
by Taichi Kato 07 Jan '23

07 Jan '23

ATLAS17kol likely superoutburst Type from ZTF data. http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia23acc/ Gaia23acc AT2023au 2023-01-03 09:45:23 15.52831 1.27574 16.93 CV 2023-01-05 07:21:51 Outburst in confirmed CV

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[vsnet-alert 27285] ASASSN-15cl likely superoutburst
by Taichi Kato 07 Jan '23

07 Jan '23

ASASSN-15cl likely superoutburst Known SU UMa star. Last superoutburst in 2022 Jan. YYYYMMDD(UT) mag observer 20221231.6265 <152c (Yutaka Maeda) 20230102.5990 <153c (Yutaka Maeda) 20230103.5885 <154c (Yutaka Maeda) 20230104.5834 <140c (Yutaka Maeda) 20230106.508 138 (Rod Stubbings)

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[vsnet-alert 27284] Standstill in CR Boo
by Taichi Kato 06 Jan '23

06 Jan '23

Standstill in CR Boo Using ATLAS forced photometry (Tonry et al. 2018; Shingles et al. 2021) and observations reported to VSNET, I found that CR Boo was almost constant between 2022 May and early July. A faint state without a dwarf nova outburst (around 17 mag) followed. The former appears to be a true standstill without low-amplitude oscillations. The latter may have reflected a lower mass-transfer rate, but the duration was too short to be recognized as a VY Scl-type fading episode. The object currently appears to show dwarf nova outbursts.

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[vsnet-alert 27283] Very low state of AG Aps
by Taichi Kato 06 Jan '23

06 Jan '23

Very low state of AG Aps Accoring to ATLAS forced photometry (Tonry et al. 2018; Shingles et al. 2021), this object was near the limit of detection (near 20.0 mag) in 2022. Outbursts were also present, but very faint (17 mag).

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[vsnet-alert 27282] PNVJ06245297+0208207
by Taichi Kato 06 Jan '23

06 Jan '23

PNVJ06245297+0208207 http://cbat.eps.harvard.edu/unconf/followups/J06245297+0208207.html Gaia ID: 062452.898 +020818.04 (2000.0) Gaia_DR2_3124112584945910912 plx=2.987(0.354) dismod=7.6 pmra=-18.782(0.630) pmdec=24.627(0.670) G=19.266 BP=19.186 RP=19.118 062452.897 +020818.06 (2000.0) Gaia_EDR3_3124112584945910912 plx=2.994(0.313) dismod=7.6 pmra=-19.292(0.354) pmdec=24.766(0.318) G=19.226 BP=19.295 RP=19.222 Brightening was recorded by ATLAS prior to the outburst. YYYYMMDD(UT) mag observer 20221218.2000 19.386c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221222.2929 19.388c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221226.1704 19.237c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221226.2057 19.105c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221226.2271 19.384c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221227.9054 18.688o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221227.9085 18.458o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221227.9140 18.550o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221227.9361 18.465o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221230.1596 18.586o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221230.1637 18.215o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221230.1892 18.900o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221230.1946 18.746o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221231.9034 18.797o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221231.9115 18.821o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221231.9183 18.974o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230103.1303 18.350o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230103.1335 18.380o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)

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[vsnet-alert 27281] ASASSN-14gg outburst
by Taichi Kato 06 Jan '23

06 Jan '23

ASASSN-14gg outburst Known SU UMa star. Possible superoutburst. YYYYMMDD(UT) mag observer 20221119.5250 <170C (Masayuki Moriyama) 20221121.5399 <166C (Masayuki Moriyama) 20221124.5001 <168C (Masayuki Moriyama) 20221205.5413 <148C (Masayuki Moriyama) 20221227.4307 <164C (Masayuki Moriyama) 20230104.4282 14.81C (Masayuki Moriyama)

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[vsnet-alert 27280] TCPJ15355028-2127114 still bright
by Taichi Kato 06 Jan '23

06 Jan '23

TCPJ15355028-2127114 still bright YYYYMMDD(UT) mag observer 20230104.847 14.24C (Hiroshi Itoh) 20230104.8755 145:C (Masayuki Moriyama)

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[vsnet-alert 27279] V1024 Per likely superoutburst
by Taichi Kato 06 Jan '23

06 Jan '23

V1024 Per likely superoutburst (Known SU UMa star) YYYYMMDD(UT) mag observer 20230102.549 157C (Mitsutaka Hiraga) 20230102.5874 <157c (Yutaka Maeda) 20230102.821 <147 (Gary Poyner) 20230102.8542 <141 (Eddy Muyllaert) 20230103.544 164C (Mitsutaka Hiraga) 20230103.5769 153:c (Yutaka Maeda) 20230104.5719 117cG (Yutaka Maeda) 20230104.6940 125C (Masayuki Moriyama)

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[vsnet-alert 27278] CSSJ062450.1+503114 possible superoutburst
by Taichi Kato 05 Jan '23

05 Jan '23

CSSJ062450.1+503114 possible superoutburst (UGSU) YYYYMMDD(UT) mag observer 20221227.6959 <176C (Masayuki Moriyama) 20221227.7670 <152c (Yutaka Maeda) 20221228.733 154C (Mitsutaka Hiraga) 20221229.478 157C (Mitsutaka Hiraga) 20221231.7586 <156c (Yutaka Maeda) 20230102.7322 <156c (Yutaka Maeda) 20230103.7199 143:cG (Yutaka Maeda) 20230103.7199 143:cG (Yutaka Maeda)

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