Extreme UV Ceti stars

This page is addendum to ATel #12699 Flaring Red Dwarf with 8-mag Amplitude in Ursa Major by H. Sielewicz and D. Denisenko

Sielewicz 1


Light curve of 2019 Apr. 22 outburst of Sielewicz 1 = SDSS J140411.62+533505.0 = AllWISE J140411.66+533505.2.
Magnitudes at quiescence are g=25.81+/-0.22, r=23.66+/-0.06, i=20.92+/-0.01.
Discovery image on 2019-04-22.869 UT.

OT 110215


VSX entry for OT 110215 = 2MASS J00264184+8324093 .

Table of Extreme UV Ceti flares


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Variable star     Coordinates      Ampl.   Range       Date     Reference
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ASASSN-21ml  J025706.31-080644.5   10.4  13.9-24.3:  20210710  ATel 14778
ASASSN-16ae  J053341.40+001432.7   10.0  13.5-23.5:  20160110  ATel  8553
GWAC 181229A J013333.08+003223.0    9.5  13.5-23.0   20181219  arXiv:2012.14126
OT 110215    J002641.60+832407.9    9.0  12.7-21.7   20110215  GCN  11739
ASASSN-13cb  J022116.92+194019.9    9.0  13.0-22.0:  20130814  ATel  5276
ASASSN-14lc  J120229.60+241210.2    8.9  14.9-23.8   20141128  ATel  6771
MGAB-V274    J120059.97+463506.6    8.5  12.9-21.4   20181224  AAVSO VSX
ASASSN-16hq  J160516.50+000704.9    7.9  13.5-21.4   20160726  ATel  9382
Sielewicz 1  J140411.62+533505.0    7.9  15.8-23.7   20190422  ATel 12699
MASTER OT J133017.28+780951.8       7.5  14.5-22.0:  20170202  ATel 10049
CSS_J022359.0+241016                7.2  13.0-20.2   20171213
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Comments, corrections, additions are welcome.

References

GCN 11739 I. Sergey, D. Denisenko, 2011
ATel 5276 K. Z. Stanek, B. J. Shappee, C. S. Kochanek et al., 2013
ATel 6771 G. Simonian, K. Z. Stanek, A. B. Davis et al., 2014
ATel 8553 B. J. Shappee, K. Z. Stanek, S. Schmidt et al., 2016
ATel 10049 P. Balanutsa, V. Lipunov, R. Rebolo et al., 2017
ATel 12699 H. Sielewicz, D. Denisenko, 2019
VSX entry for MGAB-V274 G. Murawski, 2019
arXiv:2012.14126 L. P. Xin, H. L. Li, J. Wang et al., 2020
ATel 14778 M. Rizzo Smith, K. Z. Stanek, C. S. Kochanek et al., 2021

Denis Denisenko (d.v.denisenko@gmail.com)

Page created: 2019 Apr. 27th, 09:50 +0300
Last updated: 2021 July 13th, 13:55 +0300