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

[vsnet-newvar 9351] ASASSN-22hw: likely a Galactic nova (mag. 9, in Musca)
by Patrick Schmeer 11 Jun '22

11 Jun '22

ASASSN-22hw = AT 2022mmp (N:) https://www.aavso.org/vsx/index.php?view=detail.top&oid=2227493 Transient Name Server (TNS): https://www.wis-tns.org/object/2022mmp 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/5e2d668b-e59c-4b33-b0c7-5e4f1… Spectroscopy and multiband photometry are urgently required. Clear skies, Patrick

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[vsnet-newvar 9350] ASASSN-21fd likely superoutburst
by Taichi Kato 10 Jun '22

10 Jun '22

ASASSN-21fd likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20220526.4121 16.054zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220528.3994 15.856zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220528.4407 15.756zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220601.3829 16.298zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220601.4241 16.463zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220603.3533 16.714zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220603.4420 16.654zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220605.3965 16.891zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220607.3085 16.880zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220607.4155 16.770zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-newvar 9349] ASASSN-19rg outburst (AM CVn)
by Taichi Kato 07 Jun '22

07 Jun '22

ASASSN-19rg outburst (AM CVn) YYYYMMDD(UT) mag observer 20220517.4999 <148c (Yutaka Maeda) 20220518.5029 <153c (Yutaka Maeda) 20220521.4793 <151c (Yutaka Maeda) 20220527.4671 <147c (Yutaka Maeda) 20220602.4703 <148c (Yutaka Maeda) 20220603.4672 137:c (Yutaka Maeda)

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[vsnet-newvar 9348] ASASSN-22hc: new SU UMa-type dwarf nova
by Taichi Kato 07 Jun '22

07 Jun '22

ASASSN-22hc: new SU UMa-type dwarf nova Berto Monard and Josch Hambsch have reported observations. The object started to show superhumps on May 31 and the period is 0.05633(2) d (amplitude 0.22 mag).

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[vsnet-newvar 9346] ASASSN-16eg: outburst or noise?
by Taichi Kato 03 Jun '22

03 Jun '22

ASASSN-16eg: outburst or noise? YYYYMMDD(UT) mag observer 20220521.5911 <163c (Yutaka Maeda) 20220522.6073 <154c (Yutaka Maeda) 20220527.6262 <159c (Yutaka Maeda) 20220601.6274 128c (Yutaka Maeda)

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[vsnet-newvar 9345] ASASSN-22ha: new most likely WZ Sge-type dwarf nova
by Taichi Kato 03 Jun '22

03 Jun '22

ASASSN-22ha: new most likely WZ Sge-type dwarf nova According to observations by Itoh-san on June 2, this object showed 0.15-mag superhumps (period around 0.06 d or slightly shorter). Considering the long-waiting time and large amplitude, this object is most likely a WZ Sge-type dwarf nova.

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vsnet-newvar June 2022