February 2023 - vsnet-campaign-dn - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-campaign-dn 16958] Re: CX137 = CXO GBSJ175553.2-281633 = OGLE BLG-ELL-12042 outburst
by Taichi Kato 18 Feb '23

18 Feb '23

Re: CX137 = CXO GBSJ175553.2-281633 = OGLE BLG-ELL-12042 outburst Itoh-san provided astrometry: RA:17 55 53.13 DEC:-28 16 35.4 The location is a few arcseconds different from that of CX137. The outbursting object may not be CX137 and could be a different type of outbursting object (such as a nova). CX137: 175553.262 -281633.96 (2000.0) Gaia_EDR3_4062657359687091584 plx=1.130(0.049) dismod=9.7 pmra=1.164(0.052) pmdec=-6.889(0.035) G=16.223 BP=16.755 RP=15.373

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[vsnet-campaign-dn 16957] CX137 = CXO GBSJ175553.2-281633 = OGLE BLG-ELL-12042 outburst
by Taichi Kato 17 Feb '23

17 Feb '23

CX137 = CXO GBSJ175553.2-281633 = OGLE BLG-ELL-12042 outburst Yamamoto-san detected an outburst, which can be identified with the above source (identified by Yamamoto-san; crowded fielded and still waiting for accurate astrometry). This object has a CV spectrum with ELL variation. Likely an outburst from a long-Porb, low mass-transfer CV. YYYYMMDD(UT) mag observer 20221018.0161 16.052g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221018.0174 16.155g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221018.0186 16.760c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221018.0186 15.968g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221018.0218 16.741c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221018.0272 16.734c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221018.0372 16.765c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221020.0186 16.040g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221020.0199 15.903g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221020.0212 15.908g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221021.0128 15.862g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221021.0141 15.938g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221021.0153 <16.106g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221021.0377 16.792c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221021.0409 16.820c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221021.0468 16.768c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221021.0573 16.778c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221022.0122 15.867g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221022.0134 16.057g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221022.0146 15.908g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221023.0191 16.105g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221023.0203 16.137g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221023.0216 15.889g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221023.7673 16.035o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221023.7877 15.912o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221025.7776 <15.434g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221025.7788 <15.575g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221025.7800 <15.748g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221026.0056 16.517c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.0088 16.494c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.0142 16.608c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.0255 16.516c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.0367 15.821g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221026.0380 15.883g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221026.0393 <16.159g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221026.7961 16.371o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.7993 16.387o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.8072 16.468o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.8173 16.499o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221027.7476 <15.552g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221027.7488 <15.604g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221027.7501 <15.734g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221031.7564 16.280o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221031.7601 16.176o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221031.7657 16.213o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221031.7758 15.736o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221106.0088 16.644o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221106.0179 16.836o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221106.0283 16.626o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221108.7632 15.572o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221111.0100 15.853o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221111.0150 16.018o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221111.0245 15.974o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230204.3841 <15.478g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230204.3854 <15.678g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230205.3822 <15.174g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230205.3835 <15.340g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230206.3789 <15.374g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230206.3802 <15.469g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230206.3816 15.569g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230207.3745 15.477g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230207.3758 <15.692g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230207.3771 <15.589g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230209.3731 <15.670g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230209.3744 <15.633g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230209.3757 <15.738g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230210.3835 15.388g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230210.3847 <15.552g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230210.3860 <15.538g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230212.3423 14.911o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230212.3455 14.821o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230212.3586 14.807o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230212.3666 14.705g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230212.3679 14.665g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230212.3691 14.862g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230216.837 130c (Minoru Yamamoto)

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[vsnet-campaign-dn 16956] DV UMa likely superoutburst
by Taichi Kato 17 Feb '23

17 Feb '23

DV UMa likely superoutburst YYYYMMDD(UT) mag observer 20230202.6352 <156c (Yutaka Maeda) 20230204.6272 <152c (Yutaka Maeda) 20230205.6435 <147c (Yutaka Maeda) 20230207.6782 <146c (Yutaka Maeda) 20230210.7280 <152c (Yutaka Maeda) 20230211.701 <178C (Mitsutaka Hiraga) 20230211.8030 <174C (Masayuki Moriyama) 20230213.994 <147 (Gary Poyner) 20230215.7107 143cG (Yutaka Maeda)

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[vsnet-campaign-dn 16955] GO Com unusually short superoutburst
by Taichi Kato 16 Feb '23

16 Feb '23

GO Com unusually short superoutburst Already faded. YYYYMMDD(UT) mag observer 20230121.7559 <152c (Yutaka Maeda) 20230123.4261 18.045zr (ZTF Alert DC mag (Masci+ 2019)) 20230125.3831 18.705zg (ZTF Alert DC mag (Masci+ 2019)) 20230127.4149 18.036zr (ZTF Alert DC mag (Masci+ 2019)) 20230130.7041 <157c (Yutaka Maeda) 20230130.9972 <142 (Eddy Muyllaert) 20230202.3882 14.367zr (ZTF Alert DC mag (Masci+ 2019)) 20230204.6995 131cG (Yutaka Maeda) 20230205.112 134 (Gary Poyner) 20230207.6675 132:cG (Yutaka Maeda) 20230208.051 136 (Gary Poyner) 20230210.7140 138cG (Yutaka Maeda) 20230210.7140 138cG (Yutaka Maeda) 20230213.066 14.79C (Gary Poyner) 20230214.032 <148 (Gary Poyner) 20230214.6976 <156c (Yutaka Maeda)

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[vsnet-campaign-dn 16954] MASTER OT J051415.56+671120.3 rare outburst
by Taichi Kato 16 Feb '23

16 Feb '23

MASTER OT J051415.56+671120.3 rare outburst Known SU UMa star, but not well observed in the past. YYYYMMDD(UT) mag observer 20230130.5810 <164c (Yutaka Maeda) 20230202.5808 <155c (Yutaka Maeda) 20230204.572 <174C (Mitsutaka Hiraga) 20230205.5890 <155c (Yutaka Maeda) 20230207.567 <175C (Mitsutaka Hiraga) 20230208.5565 <143c (Yutaka Maeda) 20230210.5810 <161c (Yutaka Maeda) 20230214.5718 145c (Yutaka Maeda)

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[vsnet-campaign-dn 16953] MASTER OT J034045.31+471632.2 likely superoutburst
by Taichi Kato 16 Feb '23

16 Feb '23

MASTER OT J034045.31+471632.2 likely superoutburst Known SU UMa star. YYYYMMDD(UT) mag observer 20230202.5421 <161c (Yutaka Maeda) 20230204.5175 <158c (Yutaka Maeda) 20230205.4875 <160c (Yutaka Maeda) 20230207.4999 <156c (Yutaka Maeda) 20230208.5181 <142c (Yutaka Maeda) 20230210.5418 <158c (Yutaka Maeda) 20230214.5328 152c (Yutaka Maeda) 20230214.5328 152c (Yutaka Maeda)

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[vsnet-campaign-dn 16952] DM Dra superoutburst
by Taichi Kato 16 Feb '23

16 Feb '23

DM Dra superoutburst Known SU UMa star. YYYYMMDD(UT) mag observer 20230130.8024 <161c (Yutaka Maeda) 20230204.8014 <155c (Yutaka Maeda) 20230210.8075 <147c (Yutaka Maeda) 20230210.8227 149C (Masayuki Moriyama) 20230211.8282 150C (Masayuki Moriyama) 20230214.7785 148cG (Yutaka Maeda)

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[vsnet-campaign-dn 16951] CRTS J174033.4+414756 bright superoutburst continues
by Taichi Kato 16 Feb '23

16 Feb '23

CRTS J174033.4+414756 bright superoutburst continues YYYYMMDD(UT) mag observer 20230128.5155 19.929zr (ZTF Alert DC mag (Masci+ 2019)) 20230130.8567 <159c (Yutaka Maeda) 20230204.8568 123cG (Yutaka Maeda) 20230204.8568 123cG (Yutaka Maeda) 20230207.149 13.15CV (Klaus Wenzel) 20230207.160 131 (Klaus Wenzel) 20230209.137 132CV (Klaus Wenzel) 20230213.201 136CV (Klaus Wenzel) 20230214.8331 134cG (Yutaka Maeda)

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[vsnet-campaign-dn 16950] CRTS J164950.4+035835 superoutburst
by Taichi Kato 16 Feb '23

16 Feb '23

CRTS J164950.4+035835 superoutburst Known SU UMa star. YYYYMMDD(UT) mag observer 20230130.8296 <154c (Yutaka Maeda) 20230204.8293 <150c (Yutaka Maeda) 20230214.8059 137cG (Yutaka Maeda) 20230214.8059 137cG (Yutaka Maeda)

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[vsnet-campaign-dn 16949] HT Cam rapidly fading outburst
by Taichi Kato 16 Feb '23

16 Feb '23

HT Cam rapidly fading outburst YYYYMMDD(UT) mag observer 20230209.8917 <137 (Eddy Muyllaert) 20230210.053 <148 (Gary Poyner) 20230210.6339 <160c (Yutaka Maeda) 20230211.7293 169C (Masayuki Moriyama) 20230211.8403 <137 (Jose Ripero) 20230213.8549 132 (Eddy Muyllaert) 20230213.951 131 (Gary Poyner) 20230214.6233 137:c (Yutaka Maeda) 20230214.949 155 (Gary Poyner)

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