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

[vsnet-newvar 9089] ASASSN-16de outburst
by Taichi Kato 28 Feb '22

28 Feb '22

ASASSN-16de outburst Known SU UMa star. Superoutburst? YYYYMMDD(UT) mag observer 20220220.8053 <145c (Yutaka Maeda) 20220223.7947 <146c (Yutaka Maeda) 20220224.8154 <150c (Yutaka Maeda) 20220226.8491 <150c (Yutaka Maeda) 20220227.8247 155:c (Yutaka Maeda) 20220227.8247 155:c (Yutaka Maeda)

1 0

[vsnet-newvar 9088] ASASSN-15pc outburst
by Taichi Kato 28 Feb '22

28 Feb '22

ASASSN-15pc outburst Relatively rare outburst. YYYYMMDD(UT) mag observer 20220211.4497 <161c (Yutaka Maeda) 20220214.4503 <154c (Yutaka Maeda) 20220223.4428 159:c (Yutaka Maeda) 20220224.4408 155c (Yutaka Maeda) 20220224.4408 155c (Yutaka Maeda) 20220225.4413 156:cG (Yutaka Maeda) 20220227.4482 <160c (Yutaka Maeda) 20220227.5625 159C (Masayuki Moriyama)

1 0

[vsnet-newvar 9087] DDE201 most likely superoutburst
by Taichi Kato 28 Feb '22

28 Feb '22

DDE201 most likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20220227.5100 17.104zg (Zwicky Transient Facility Lasair (Masci+ 2019))

1 0

[vsnet-newvar 9086] CRTS J044216.0-002334 likely superoutburst
by Taichi Kato 28 Feb '22

28 Feb '22

CRTS J044216.0-002334 likely superoutburst YYYYMMDD(UT) mag observer 20220226.1374 16.852zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220228.1523 16.985zg (Zwicky Transient Facility Lasair (Masci+ 2019))

1 0

[vsnet-newvar 9085] ASASSN-19ms possible superoutburst
by Taichi Kato 28 Feb '22

28 Feb '22

ASASSN-19ms possible superoutburst (Suspected type from tge ZTF data) YYYYMMDD(UT) mag observer 20220212.2323 19.451zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220219.2138 19.879zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220226.1663 16.073zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220228.1685 15.659zg (Zwicky Transient Facility Lasair (Masci+ 2019))

1 0

[vsnet-newvar 9084] ASASSN-22ce: superhump period
by Taichi Kato 28 Feb '22

28 Feb '22

ASASSN-22ce: superhump period Itoh-san and Josch Hambsch have reported observations. The superhump period is 0.07134(2) d. Itoh-san's initial observations were apparently obtained during the final phase of stage A.

1 0

[vsnet-newvar 9083] CRTS J044636.9+083033 superoutburst
by Taichi Kato 27 Feb '22

27 Feb '22

CRTS J044636.9+083033 superoutburst YYYYMMDD(UT) mag observer 20220214.5119 <157c (Yutaka Maeda) 20220215.5260 <154c (Yutaka Maeda) 20220223.4904 153:cG (Yutaka Maeda) 20220223.4905 153:cG (Yutaka Maeda) 20220224.4883 151:cG (Yutaka Maeda) 20220225.4887 153c (Yutaka Maeda) 20220226.024 15.40C (Gary Poyner) 20220226.0254 15.29C (Masao Funada) 20220226.4972 154:c (Yutaka Maeda)

1 0

[vsnet-newvar 9081] ASASSN-22ce: new SU UMa-type dwarf nova
by Taichi Kato 24 Feb '22

24 Feb '22

ASASSN-22ce: new SU UMa-type dwarf nova Itoh-san detected superhumps (0.3 mag) on Feb. 23. The period is slightly longer than 0.06 d.

2 1

[vsnet-newvar 9080] ZTF18abunevo outburst (since Feb. 17)
by Patrick Schmeer 23 Feb '22

23 Feb '22

ZTF18abunevo (UGSS:) https://www.aavso.org/vsx/index.php?view=detail.top&oid=2225736 SS Cyg-type outbursts (slow rise etc.) according to ZTF data: https://lasair.roe.ac.uk/object/ZTF18abunevo/ Gaia (Photometric) Science Alerts data: http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22ast/ Complete ASAS-SN Sky Patrol light curve and data (contaminated): https://asas-sn.osu.edu/sky-patrol/coordinate/1cb1fc56-0f43-4fd1-88ea-69dad… Clear skies, Patrick ------- References: All-Sky Automated Survey for Supernovae (ASAS-SN) Sky Patrol: - Shappee et al., 2014ApJ...788...48S - Kochanek et al., 2017PASP..129j4502K Lasair: - Smith et al., 2019RNAAS...3...26S Zwicky Transient Facility (ZTF): - Masci et al., 2019PASP..131a8003M

1 0

[vsnet-newvar 9078] CRTS J172515.5+073249 Gaia detection
by Taichi Kato 21 Feb '22

21 Feb '22

CRTS J172515.5+073249 Gaia detection http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22arr/ Gaia22arr AT2022cut 2022-02-18 18:04:41 261.31483 7.54699 16.29 20.86 0.11 unknown 2022-02-20 09:58:04 candidate CV CSS100706:172516+073249 in 4.5 mag blue outburst

1 0