[vsnet-alert 11191] Re: OT_J144341.9-175550 = Catalina transient

Hiroyuki Maehara maehara at kwasan.kyoto-u.ac.jp
Sat Apr 18 19:36:12 JST 2009


 According to ASAS-3 data, previous outbursts have been recorded in
June 2002, July 2005, and May 2007.

# 2002 June
   2443.56709 29.999 29.999 29.999 29.999 29.999    0.023 0.026 0.018 0.017 0.019  C 8642
   2452.53385 13.656 13.551 13.456 13.492 13.589    0.027 0.030 0.024 0.027 0.024  A 9416
   2453.54971 29.999 29.999 29.999 29.999 29.999    0.082 0.079 0.079 0.088 0.097  D 9594
   2454.55270 29.999 29.999 29.999 29.999 29.999    0.034 0.035 0.028 0.031 0.030  C 9815
   2456.53260 29.999 29.999 29.999 29.999 29.999    0.025 0.026 0.020 0.022 0.022  C 10031
   2459.52570 29.999 29.999 29.999 29.999 29.999    0.030 0.034 0.026 0.026 0.027  C 10078
   2463.52693 15.085 15.138 15.107 14.907 14.574    0.036 0.030 0.024 0.026 0.029  A 10571
   2464.52761 14.996 15.108 15.985 99.999 99.999    0.026 0.029 0.021 0.024 0.020  C 10791
   2466.50754 29.999 29.999 29.999 29.999 29.999    0.025 0.030 0.020 0.020 0.019  C 11220

# 2005 July
# Superoutburst?
   3574.63003 29.999 29.999 29.999 29.999 29.999    0.036 0.032 0.027 0.031 0.036  C 151282
   3576.64530 13.676 13.652 13.701 13.769 13.812    0.056 0.034 0.029 0.032 0.037  A 151647
   3578.64774 14.011 14.097 14.225 14.403 15.019    0.057 0.037 0.031 0.033 0.036  A 151980
   3583.48547 14.678 14.792 14.713 14.626 14.744    0.084 0.048 0.041 0.043 0.046  A 152781
   3585.53637 14.516 14.374 14.351 14.529 14.667    0.043 0.026 0.024 0.027 0.030  A 153147
   3587.54960 29.999 29.999 29.999 29.999 29.999    0.036 0.027 0.023 0.025 0.028  C 153493

# 2007 May
   4238.77706 29.999 29.999 29.999 29.999 29.999    0.082 0.083 0.091 0.104 0.114  D 225060
   4246.64506 13.962 14.011 14.147 14.368 14.694    0.052 0.040 0.033 0.034 0.037  A 226221
   4253.62753 29.999 29.999 29.999 29.999 29.999    0.054 0.049 0.049 0.055 0.060  C 226843
   4255.66121 14.464 14.445 14.517 14.599 14.642    0.036 0.045 0.052 0.062 0.069  B 227082
   4257.65923 29.999 29.999 29.999 29.999 29.999    0.038 0.040 0.040 0.047 0.054  C 227427


On Sat, Apr 18, 2009 at 06:47:38PM +0900, Hiroyuki Maehara wrote:
>  The Catalina Sky Survey detected an optical transient at 
> R.A. 14:43:41.92, Decl. -17:55:50.0.
> 
> 904180180764143130 2009-04-18T09:16:04 2009-04-18T09:12:22 14 43 41.92 -17 55 50.0 4.320 13.61 13.60 13.60 13.55  http://nesssi.cacr.caltech.edu/catalina/20090418/904180180764143130.html
> 
> There is a faint blue counterpart in USNO B1.0 catalog. The object 
> is likely a dwarf nova in outburst.
> Follow-up observations are encouraged.
> 
> 1	 0.569	14 43 41.90	-17 55 49.5	0720-0373336	220.924581	-17.930420	110	245	1975.6 	8 	-42	5	18.51	17.70	20.01	20.06	18.58


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