September 2021 - vsnet-newvar - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-newvar 8755] ZTF J194703.11+510444.6: R
by Taichi Kato 10 Sep '21

10 Sep '21

ZTF J194703.11+510444.6: R From ZTF data. Sinusoidal, blue and faint (M_V= +7.3). 194703.1 +510444 (2000.0) ATOJ296.7629+51.0790 SINE c=16.947 o=17.191 P(LS)=0.080996 rms=0.18 194703.1 +510444 (2000.0) ZTFJ194703.11+510444.6 RSCVN g=16.881 r=17.227 amp=0.361 P=0.0810253 194703.1 +510444 (2000.0) ZTFJ194703.11+510444.7 r=17.222 (16.951-17.487) P=0.0810 194703.108 +510444.68 (2000.0) Gaia_DR2_2135442243331252608 plx=1.059(0.078) dismod=9.9 pmra=-5.330(0.143) pmdec=-17.873(0.132) G=16.941 BP=16.748 RP=16.987 194703.107 +510444.67 (2000.0) Gaia_EDR3_2135442243331252608 plx=1.190(0.048) dismod=9.6 pmra=-5.095(0.057) pmdec=-17.898(0.053) G=16.925 BP=16.839 RP=16.989

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[vsnet-newvar 8754] MGAB-V1215: NL
by Taichi Kato 10 Sep '21

10 Sep '21

MGAB-V1215: NL From ZTF data. Flickering in ZTF time-resolved data. 2MASS 222849.866 +501011.31 (2000.0) 16.037 15.945 15.493 222849.8 +501011 (2000.0) ATOJ337.2078+50.1698 dubious c=16.804 o=16.728 P(LS)=0.42829 rms=0.20 222849.8 +501011 (2000.0) Gaia_DR2_2000174314233682944 DR2_STS g=16.786(0.161) Mowlavi2020 222849.8 +501011 (2000.0) ZTFJ222849.88+501011.3 susp g=16.866 r=16.769 amp=0.290 P=0.7527900 logfalse=-6.472 222849.8 +501011 (2000.0) ZTFJ222849.89+501011.3 g=16.879 (16.485-17.356) P=0.7530 222849.8 +501011 (2000.0) Gaia_DR2_2000174314233682944 DR2_STS g=16.786(0.161) Mowlavi2020 222849.889 +501011.30 (2000.0) Gaia_DR2_2000174314233682816 plx=0.565(0.072) dismod=11.2 pmra=-4.486(0.122) pmdec=-8.634(0.110) G=16.786 BP=16.872 RP=16.505 222849.889 +501011.30 (2000.0) Gaia_EDR3_2000174314233682816 plx=0.565(0.049) dismod=11.2 pmra=-4.186(0.054) pmdec=-8.669(0.048) G=16.740 BP=16.840 RP=16.463

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[vsnet-newvar 8753] ATO J301.7597+49.8319: Z Cam star
by Taichi Kato 10 Sep '21

10 Sep '21

ATO J301.7597+49.8319: Z Cam star From ZTF data. Dwarf nova state in 2019 (cycle about 15 d). Standstill since 2020. 2MASS 200702.298 +494954.87 (2000.0) 16.105 16.031 15.290 200702.3 +494955 (2000.0) ATOJ301.7597+49.8319 dubious c=16.204 o=16.156 P(LS)=0.29352 rms=0.15 200702.3 +494955 (2000.0) ZTFJ200702.33+494955.2 g=16.543 (16.174-16.755) P=0.9363 200702.333 +494955.15 (2000.0) Gaia_DR2_2087842980517605248 plx=0.594(0.063) dismod=11.1 pmra=0.419(0.117) pmdec=-6.315(0.113) G=16.605 BP=16.625 RP=16.468 200702.333 +494955.14 (2000.0) Gaia_EDR3_2087842980517605248 plx=0.562(0.042) dismod=11.3 pmra=0.520(0.048) pmdec=-6.447(0.047) G=16.583 BP=16.656 RP=16.413

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[vsnet-newvar 8752] ZTF J183304.06+463705.2: R
by Taichi Kato 10 Sep '21

10 Sep '21

ZTF J183304.06+463705.2: R Almost purely sinusoidal (ZTF data), blue and faint (M_V = +6.4). The period has been confirmed. 183304.064 +463705.15 (2000.0) Gaia_DR2_2118607522015143936 plx=1.347(0.053) dismod=9.4 pmra=-7.238(0.112) pmdec=-14.468(0.123) G=15.753 BP=15.543 RP=15.912 183304.063 +463705.14 (2000.0) Gaia_EDR3_2118607522015143936 plx=1.433(0.030) dismod=9.2 pmra=-7.044(0.039) pmdec=-14.531(0.045) G=15.699 BP=15.572 RP=15.885

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[vsnet-newvar 8751] ATO J297.1584+46.3857: NL
by Taichi Kato 10 Sep '21

10 Sep '21

ATO J297.1584+46.3857: NL Type from ZTF data. Also flickering in ZTF time-resolved data.

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[vsnet-newvar 8750] DDE 139 outburst
by Taichi Kato 10 Sep '21

10 Sep '21

DDE 139 outburst YYYYMMDD(UT) mag observer 20210622.2109 20.197zr (Zwicky Transient Facility (Masci et al., 2019)) 20210628.1906 20.372zr (Zwicky Transient Facility (Masci et al., 2019)) 20210704.2402 16.218zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210704.2404 16.218zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210706.2116 17.563zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210706.2118 17.563zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-newvar 8749] AXJ1853.3-0128: bright outburst in 2019 Aug.
by Taichi Kato 10 Sep '21

10 Sep '21

AXJ1853.3-0128: bright outburst in 2019 Aug. ZTF data. Reached 12.9 mag. The duration is that of a normal outburst of this orbital period, not a short IP-type outburst. Should be reclassified as UG+DQ.

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[vsnet-newvar 8748] ATO J152.5043+16.0448: Z Cam (IW And) star
by Taichi Kato 10 Sep '21

10 Sep '21

ATO J152.5043+16.0448: Z Cam (IW And) star Standstill in 2021 Mar., terminated by brightening (ZTF data). Only one event, but the star is likely an IW And star.

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[vsnet-newvar 8747] MGAB-V305 possible superoutburst
by Taichi Kato 10 Sep '21

10 Sep '21

MGAB-V305 possible superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20210908.2028 16.555zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-newvar 8746] DDE169 outburst
by Taichi Kato 10 Sep '21

10 Sep '21

DDE169 outburst YYYYMMDD(UT) mag observer 20210729.626 <168C (Mitsutaka Hiraga) 20210731.3827 17.484zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210731.3828 17.484zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210731.4559 17.455zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210731.4559 17.494zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210802.4490 17.614zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210808.3674 18.082zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210808.3675 18.082zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210909.3836 15.073zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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vsnet-newvar September 2021