- vsnet-campaign-dn - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-campaign-dn 16207] ASASSN-22as
by Taichi Kato 15 Jan '22

15 Jan '22

ASASSN-22as ASASSN-22as --- ------- 15:17:56.64 45:38:33.1 2022-01-13.62 14.52 SDSS DSS VIZIER ------- CV candidate, matches to PS1 g=22.1, g>18.6 on 2022-01-07.59, g=14.1 on 2022-01-10.62, g=14.8 on 2022-01-13.62 ASASSN-22as 20220107.59 <186g ASN ASASSN-22as 20220110.62 141g ASN ASASSN-22as 20220113.62 148g ASN 151756.233 +453832.77 (2000.0) GALEX_DR5_6374962000150138599 NUV=22.280(0.412) FUV=-(-)

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[vsnet-campaign-dn 16206] RZ Leo: early superhumps
by Taichi Kato 15 Jan '22

15 Jan '22

RZ Leo: early superhumps Kiyota-san and Itoh-san have reported observations. The object now clearly show 0.09-mag early superhumps. The period was 0.07578(4) d, not positive superhumps. Porb=0.076038 d. WZ Sge stars with this Porb are very rare.

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[vsnet-campaign-dn 16204] Re: ASASSN-22an is a dwarf nova
by Taichi Kato 14 Jan '22

14 Jan '22

Re: ASASSN-22an is a dwarf nova Interesting result. The object was bright in 2021 Oct. and it would be difficult to imagine that a dwarf nova outburst last nearly three months (unless they were separate outbursts), and it is still disk-dominated.

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[vsnet-campaign-dn 16203] RZ Leo: short-term variations
by Taichi Kato 14 Jan '22

14 Jan '22

RZ Leo: short-term variations Itoh-san reported observations. The object showed variations and they may have been early superhumps. Observation are encouraged.

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[vsnet-campaign-dn 16202] Re: RZ Leo outburst
by Patrick Schmeer 14 Jan '22

14 Jan '22

RZ Leonis (UGWZ) https://www.aavso.org/vsx/index.php?view=detail.top&oid=17049 Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) light curve and data: https://asas-sn.osu.edu/sky-patrol/coordinate/d20d5eca-56b8-4595-a806-63244… LEORZ 20220111.5274 <17.78g ASN Latest ATLAS (Tonry et al., 2018PASP..130f4505T) data: LEORZ 20220111.6380 18.43cy ATLAS (forced photometry) Time-resolved photometry is urgently required. Clear skies, Patrick ------- Hiroyuki Maehara wrote on Thursday, 13 January 2022 at 00:42:03 UTC: According to Kojima-san, RZ Leo is in outburst. object YYYYMMDD(UT) mag code LEORZ 20220112.791 136c TKo Observer: Tadashi Kojima (Gunma, Japan) Instruments: f.l.=200mm lens + Canon EOS 6D

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[vsnet-campaign-dn 16201] ASASSN-22ao
by Taichi Kato 11 Jan '22

11 Jan '22

ASASSN-22ao ASASSN-22ao --- ------- 23:16:36.34 50:1:52.2 2022-01-9.11 15.42 SDSS DSS VIZIER ------- CV candidate, matches to PS1 g=20.0, g>17.4 on 2021-12-14.16, g=17.1 on 2022-01-07.21, g=15.8 on 2022-01-09.11 ASASSN-22ao 20211214.16 <174g ASN ASASSN-22ao 20220107.21 171g ASN ASASSN-22ao 20220109.11 158g ASN 2MASS 231636.315 +500152.31 (2000.0) 16.293 15.671 16.463 231636.274 +500152.27 (2000.0) Gaia_DR2_1990859453575783680 plx=0.274(0.385) dismod=12.8 pmra=-11.457(0.599) pmdec=-11.396(0.534) G=19.625 BP=19.780 RP=19.140 231636.273 +500152.27 (2000.0) Gaia_EDR3_1990859453575783680 plx=0.566(0.298) dismod=11.2 pmra=-11.471(0.288) pmdec=-10.445(0.254) G=19.612 BP=19.880 RP=19.152 Double outburst in 2018 June-July in ZTF data.

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[vsnet-campaign-dn 16200] IP Peg outburst (since Jan. 6)
by Patrick Schmeer 10 Jan '22

10 Jan '22

IP Pegasi (UGSS+E) Orbital period: 0.15820609 d (3.796946 h) https://www.aavso.org/vsx/index.php?view=detail.top&oid=25356 From "activity at a glance (Jan 10)" (T. Kato, vsnet-outburst 28207): 20220103.4910 150c (Yutaka Maeda) 20220103.5465 153C (Masayuki Moriyama) 20220104.397 <139 (Tsuneo Horie) 20220104.4433 <150c (Yutaka Maeda) 20220104.5567 <138C (Masayuki Moriyama) 20220105.375 <130 (Tsuneo Horie) 20220106.4926 135cG (Yutaka Maeda) 20220106.5498 136C (Masayuki Moriyama) 20220107.401 127 (Tsuneo Horie) 20220107.4631 122cG (Yutaka Maeda) 20220107.4631 122cG (Yutaka Maeda) 20220107.7861 124 (Jose Ripero) A short outburst was observed from 2021 September 16 to 21 according to AAVSO and ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) data: https://app.aavso.org/webobs/results/?star=000-BCR-486 https://asas-sn.osu.edu/sky-patrol/coordinate/559cd954-4a4e-4da5-888e-17dbe… Clear skies, Patrick

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[vsnet-campaign-dn 16198] ASASSN-15rj possible superoutburst
by Taichi Kato 09 Jan '22

09 Jan '22

ASASSN-15rj possible superoutburst Relatively rare outburst. YYYYMMDD(UT) mag observer 20211231.5565 <166c (Yutaka Maeda) 20220102.5479 <138c (Yutaka Maeda) 20220103.5609 <165c (Yutaka Maeda) 20220104.5130 <158c (Yutaka Maeda) 20220106.5626 <165c (Yutaka Maeda) 20220107.5363 155:c (Yutaka Maeda)

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[vsnet-campaign-dn 16199] RX Vol possible superoutburst
by Taichi Kato 09 Jan '22

09 Jan '22

RX Vol possible superoutburst YYYYMMDD(UT) mag observer 20220107.3229 15.09C (Eddy Muyllaert) 20220107.3231 15.17C (Masao Funada) 20220107.521 153 (Rod Stubbings)

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[vsnet-campaign-dn 16197] TU Tri superoutburst
by Taichi Kato 09 Jan '22

09 Jan '22

TU Tri superoutburst YYYYMMDD(UT) mag observer 20211231.5329 <165c (Yutaka Maeda) 20220102.6834 <154C (Masayuki Moriyama) 20220102.805 <149 (Gary Poyner) 20220103.5374 <165c (Yutaka Maeda) 20220104.4894 145:cG (Yutaka Maeda) 20220104.4894 145:cG (Yutaka Maeda) 20220104.833 147 (Gary Poyner) 20220105.817 148 (Gary Poyner) 20220106.5390 149cG (Yutaka Maeda) 20220107.5108 <144c (Yutaka Maeda) 20220107.921 151: (Gary Poyner)

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