May 2023 - vsnet-campaign-polar - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-campaign-polar 157]Re: QS Tel low state (polar)
by Taichi Kato 13 May '23

13 May '23

Re: QS Tel low state (polar) There was apparently a problem with upper limits of ASAS-SN Sky Patrol Photom. DB. Not so faint in ATLAS (not in low state).

1 0

[vsnet-campaign-polar 156]QS Tel low state (polar)
by Taichi Kato 12 May '23

12 May '23

QS Tel low state (polar) YYYYMMDD(UT) mag observer 20230323.3672 <18.321g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230328.3258 <18.528g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230329.3433 <18.004g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230330.1017 16.373g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230403.4127 <17.871g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230406.3018 <17.166g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230414.2952 <17.962g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230416.3240 <18.335g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230418.0318 15.757g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230426.2552 <18.222g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230429.0194 15.952g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230430.2412 <17.719g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230503.2269 <17.241g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230504.2295 <17.143g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230504.2295 <17.589g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230505.2908 <17.056g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230506.9500 16.467g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230506.9500 16.588g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230509.2116 <16.830g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230509.2116 <17.051g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014))

1 0

[vsnet-campaign-polar 153]AR UMa short-term variations
by Taichi Kato 06 May '23

06 May '23

AR UMa short-term variations Josch Hambsch reported time-resolved observations. In addition to the expected orbital modulation (0.7 mag), QPO-like variations were also recorded, which are often observed in polars.

3 2

[vsnet-campaign-polar 152]Re: AR UMa bright state (polar)
by Taichi Kato 03 May '23

03 May '23

Re: AR UMa bright state (polar) Still bright. YYYYMMDD(UT) mag observer 20230426.2591 14.269o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230426.2609 14.298o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230426.2827 14.136o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230426.2868 14.300o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.3378 14.192o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.3409 13.951o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.3464 13.908o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) See (historical) references: https://ui.adsabs.harvard.edu/abs/1996ApJ...473..483S/abstract https://ui.adsabs.harvard.edu/abs/1994ApJ...426..288R/abstract https://ui.adsabs.harvard.edu/abs/1993IBVS.3890....1W/abstract

1 0

[vsnet-campaign-polar 151]AR UMa bright state (polar)
by Taichi Kato 03 May '23

03 May '23

AR UMa bright state (polar) Long bright state probably first time since the 1990s. (Short brightening in 2021 May). Orbital modulations (as a polar) are very apparent and would be an interesting target. YYYYMMDD(UT) mag observer 20230221.7088 141cG (Yutaka Maeda) 20230226.5112 14.230g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230304.5086 14.143g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230305.1381 14.373g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230317.3885 14.041g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230318.3331 14.296g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230323.2519 14.278g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230325.4920 14.325g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230405.2185 14.356g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230410.3923 14.290g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230411.1975 14.519g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230412.4029 13.997g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230414.4357 14.272g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230415.8972 <146 (Jose Ripero) 20230416.3169 14.171g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230416.9056 <146 (Jose Ripero) 20230417.3071 14.178g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230419.2210 13.974g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230422.3850 14.095g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230425.2669 14.273g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230426.2239 13.946g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014))

1 0

2024

2023

2022

2021

vsnet-campaign-polar May 2023