April 2022 - vsnet-newvar - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-newvar 9221] Gaia20ecp: likely WZ Sge star with multiple rebrightenings
by Taichi Kato 09 Apr '22

09 Apr '22

Gaia20ecp: likely WZ Sge star with multiple rebrightenings From ZTF data. At least five rebrightenings.

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[vsnet-newvar 9220] Gaia20eio: polar
by Taichi Kato 09 Apr '22

09 Apr '22

Gaia20eio: polar From ZTF data. Porb=0.0621926(1) d. Double-peaked maximum. X-ray: 190051.4 +405008 (2000.0) 1RXS-F_J190051.5+405009 0.028 -0.67 0.81

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[vsnet-newvar 9219] ASASSN-22eb: new SU UMa-type dwarf nova
by Taichi Kato 09 Apr '22

09 Apr '22

ASASSN-22eb: new SU UMa-type dwarf nova Josch Hambsch and Itoh-san have reported observations. Hambsch's data on Apr. 7 showed clear superhumps. The period was about 0.055 d. This object could be a WZ Sge star.

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[vsnet-newvar 9216] ASASSN-22ff
by Naoto Kojiguchi 07 Apr '22

07 Apr '22

ASASSN-22ff Large outburst amplitude of 7 mag. ASASSN-22ff --- ------- 19:2:40.48 18:17:22 2022-04-5.4 15.14 SDSS DSS VIZIER ------- CV candidate, matches to PS1 g=22.5, g>18.3 on 2022-04-03.37, g=15.6 on 2022-04-05.40 ASAS-SN Sky Patrol (contaminated): https://asas-sn.osu.edu/sky-patrol/coordinate/26425847-1978-4d76-9407-dc02f… IDs: 190240.408 +181722.540 PS1_DR1_129942856683518080 g=22.5092(0.1801) r=21.8079(0.0718) i=21.3872(0.0728) z=21.011(0.1756) y=--(--) 190240.408 +181722.680 PS1_DR2_129942856683518080 g=23.1678(0.118422) r=21.898(0.053925) i=21.3788(0.04597) z=21.4571(0.104511) y=21.4205(0.197335) 190240.417 +181722.675 SDSSJ190240.41+181722.6 ObsDate=2004.7096 u=23.937(23.937) g=22.608(0.415) r=21.688(0.251) i=20.849(0.186) z=20.385(0.353) ASASSN-22ff 20220403.37 <183g ASN ASASSN-22ff 20220405.40 156g ASN

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[vsnet-newvar 9215] Gaia21asy: likely AM CVn star with multiple rebrightenings
by Taichi Kato 07 Apr '22

07 Apr '22

Gaia21asy: likely AM CVn star with multiple rebrightenings From ZTF data. Short initial outburst and multiple rebrightenings.

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[vsnet-newvar 9214] Gaia21djk: likely SU UMa star with multiple rebrightenings
by Taichi Kato 07 Apr '22

07 Apr '22

Gaia21djk: likely SU UMa star with multiple rebrightenings From ZTF data. Two rebrightenings in 2018. At least one in 2020. Interval too short for a WZ Sge star. May be similar to ASASSN-14ho.

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[vsnet-newvar 9213] Gaia21cxh: possible AM CVn-type dwarf nova
by Taichi Kato 07 Apr '22

07 Apr '22

Gaia21cxh: possible AM CVn-type dwarf nova From ZTF data. Long fading tail and likely short rebrightening.

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[vsnet-newvar 9212] Gaia21cqc UGSS+E
by Taichi Kato 07 Apr '22

07 Apr '22

Gaia21cqc UGSS+E From ZTF data. Porb=0.1705437(6) d. Eclipse 1.0 mag.

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[vsnet-newvar 9211] BraTS-SON-T2-024: likely AM CVn-type dwarf nova
by Taichi Kato 07 Apr '22

07 Apr '22

BraTS-SON-T2-024: likely AM CVn-type dwarf nova From ZTF data. Short superoutburst, multiple short reberightenings on long long fading tail.

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[vsnet-newvar 9210] MGAB-V3453: period
by Taichi Kato 06 Apr '22

06 Apr '22

MGAB-V3453: period From ZTF data. Porb=0.0998379(2) d. Polar.

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vsnet-newvar April 2022