[vsnet-outburst 8372] AQ Eri in superoutburst

Ohshima ohshima at kusastro.kyoto-u.ac.jp
Fri Dec 28 15:33:25 JST 2007


AQ Eri in superoutburst

 The UGSU type dwarf nova AQ Eri is probably undergoing a superoutburst.
 This star underwent a normal outburst only 16 days ago, and this normal
outburst might be a precursor of this superoutburst.
 AQ Eri also underwent a superoutburst in 2006 Dec., while this star showed
 a precursor a few days before that superoutburst. AQ Eri may be a system
which often shows precursors from any cause, orbital period for instance.

Recent observations; 
  20070907.814  <142  (Yutaka Maeda)
  20071023.203  <138  (Eddy Muyllaert)
  20071113.705  <138  (Tomohito Ohshima)
  20071117.994  <142  (Eddy Muyllaert)
  20071122.676  <142  (Yutaka Maeda)
  20071129.665  <153C  (Masayuki Moriyama)
  20071129.867  <138  (Eddy Muyllaert)
  20071203.558  <121  (Takuichiro Onishi)
  20071205.510  <110  (Tomohito Ohshima)
  20071205.594  <121  (Takuichiro Onishi)
  20071205.694  <153C  (Masayuki Moriyama)
  20071207.656  <121  (Takuichiro Onishi)
  20071207.772  167C  (Hiroyuki Maehara)
  20071208.770  <174C  (Hiroyuki Maehara)
  20071209.569  <121  (Takuichiro Onishi)
  20071210.507   140  (Rod Stubbings)
  20071211.478   149  (Rod Stubbings)
  20071212.506   158  (Rod Stubbings)
  20071214.605  <121  (Takuichiro Onishi)
  20071215.597  <120  (Takuichiro Onishi)
  20071216.573  <121  (Takuichiro Onishi)
  20071216.895  <138  (Eddy Muyllaert)
  20071217.601  <142  (Yutaka Maeda)
  20071225.469   140  (Rod Stubbings)
  20071226.581  140C  (Hiroyuki Maehara)
  20071226.612  142C  (Masayuki Moriyama)
  20071226.649   140  (Yutaka Maeda)
  20071226.660  142C  (Masayuki Moriyama)
  20071227.465   138  (Rod Stubbings)

Past outbursts;
 2006 Feb. 25   128  (Eddy Muyllaert)
 2006 Nov. 24   132  (Rod Stubbings) precursor?
 2006 Nov. 27  131  (Rod Stubbings) superoutburst
 2007 Dec 10 140  (Rod Stubbings)


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