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

[vsnet-newvar 9146] RomanovV48: object below the period minimum with a hot secondary?
by Taichi Kato 30 Mar '22

30 Mar '22

RomanovV48: object below the period minimum with a hot secondary? I have confirmed the period. P=0.0420991(1) d. Double-wave modulation with a marked hot spot? M_K = +4.5 suggests an evolved, luminous secondary (at least it's not an ordinary secondary of a polar). No apparent long-term modulation of the mean brightness. First non-DN EI Psc-type CV? Spectroscopy is strongly encouraged. 2MASS 201116.822 +600428.59 (2000.0) 16.600 16.289 15.386 201116.826 +600428.05 (2000.0) Gaia_DR2_2236896418906579072 plx=0.692(0.093) dismod=10.8 pmra=-4.787(0.228) pmdec=-7.973(0.240) G=17.369 BP=17.400 RP=17.007 201116.825 +600428.04 (2000.0) Gaia_EDR3_2236896418906579072 plx=0.693(0.065) dismod=10.8 pmra=-4.804(0.090) pmdec=-7.953(0.081) G=17.303 BP=17.407 RP=17.000 201116.892 +600428.18 (2000.0) GALEX_DR5_6372569504726126036 NUV=18.267(0.057) FUV=18.467(0.098)

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[vsnet-newvar 9145] SDSS J074037.67+254109.4: IW And star
by Taichi Kato 30 Mar '22

30 Mar '22

SDSS J074037.67+254109.4: IW And star From ZTF data. Heartbeat + dips in late 2020-early 2021.

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[vsnet-newvar 9144] Wils SDSSJ074500.58+332859.6: period
by Taichi Kato 30 Mar '22

30 Mar '22

Wils SDSSJ074500.58+332859.6: period P=0.0693237(1) d from ZTF data. Two-pole accretor (polar).

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[vsnet-newvar 9143] SDSS J162608.16+332827.8: period
by Taichi Kato 30 Mar '22

30 Mar '22

SDSS J162608.16+332827.8: period P=0.0660891(4) d from ZTF data. Single maximum per period.

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[vsnet-newvar 9142] ZTF18abmpkbj: likely ER UMa + Z Cam
by Taichi Kato 30 Mar '22

30 Mar '22

ZTF18abmpkbj: likely ER UMa + Z Cam From ZTF data. Entered a standstill in 2021 Sep.

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[vsnet-newvar 9141] DDE 37: polar
by Taichi Kato 30 Mar '22

30 Mar '22

DDE 37: polar From ZTF data. Porb = 0.0731854(4) d. Low and high states. Stronger and weaker poles.

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[vsnet-newvar 9140] 1RXS J234500.2+342913: eclipsing polar
by Taichi Kato 30 Mar '22

30 Mar '22

1RXS J234500.2+342913: eclipsing polar From ZTF data. Porb = 0.1300449(4) d. Eclipses are more than 2 mag deep.

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[vsnet-newvar 9139] RX J2133.7+5107: VY Scl star
by Taichi Kato 30 Mar '22

30 Mar '22

RX J2133.7+5107: VY Scl star From ZTF data. Faint states in 2020 Apr. and 2021 Apr. Small outbursts late in 2020 (suggestion of an IW And star?).

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[vsnet-newvar 9138] ASASSN-22eb
by Taichi Kato 30 Mar '22

30 Mar '22

ASASSN-22eb Large outburst amplitude. ASASSN-22eb --- ------- 16:11:24.82 -22:45:57.6 2022-03-27.35 13.93 SDSS DSS VIZIER ------- CV candidate, matches to PS1 g=21.0, g>18.5 on 2022-03-26.25, g=14.3 on 2022-03-27.36, g=14.5 on 2022-03-28.18. ASASSN-22eb 20220326.25 <185g ASN ASASSN-22eb 20220327.36 143g ASN ASASSN-22eb 20220328.18 145g ASN

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[vsnet-newvar 9137] ASASSN-22ea
by Taichi Kato 30 Mar '22

30 Mar '22

ASASSN-22ea Large outburst amplitude. ASASSN-22ea --- ------- 3:38:28.06 -45:54:23.8 2022-03-26.04 14.28 SDSS DSS VIZIER ------- CV candidate, matches to DES DR2 g=21,4, g>17.5 on 2022-03-23.05, g=14.5 on 2022-03-26.04, g=14.6 on 2022-03-27.03. ASASSN-22ea 20220323.05 <175g ASN ASASSN-22ea 20220326.05 145g ASN ASASSN-22ea 20220327.03 146g ASN

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