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[vsolj-alert 815] VSNET Weekly Campaign Summary

From owner-vsnet-campaign@kusastro.kyoto-u.ac.jp Tue Sep  5 04:19 JST 2000
To: vsnet-campaign
cc: uemura
Date: Tue, 05 Sep 2000 04:12:28 +0900
From: Makoto Uemura <uemura@kusastro.kyoto-u.ac.jp>
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Subject: [vsnet-campaign 472] VSNET Weekly Campaign Summary
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VSNET Weekly Campaign Summary
*** Last week news ***

(new targets)
  KK Tel		(RA = 20h28m37s.27, Dec = -52d18'25".1)

    The suspected SU UMa-type object KK Tel started its (faint) outburst
  detected by R. Stubbings at 14.8mag on August 30 (vsnet-campaign-dn 127).
    Time-series observations are encouraged to clarify its nature.

  V635 Cas		(RA = 01h18m32s.05, Dec = +63d44'22".3)

    As reported by G. Poyner on August 29, the Be X-ray transient 
  V635 Cas started its optical outburst (14.7mag)(vsnet-campaign-xray 45).
  The observation on September 1 by T. Kinnunen shows it to be fainter 
  (15.1mag) (vsnet-campaign-xray 46).
    Close monitorings are encouraged.

  MV Lyr		(RA = 19h07m15s.93, Dec = +44d01'10".7)

    The VY Scl-type novalike variable MV Lyr has rapidly brightened, 
  which was detected on August 28 by G. Poyner.  T. Kato commented 
  the present brightening may have been dwarf nova-type.  Time-series 
  photometry is strongly encouraged to clarify the present state 
  (vsnet-campaign 463).
    Time-series observations are encouraged.

  60 Cyg		(RA = 20h59m26s, Dec = +45d57m.5)

    E. Pollmann reported the H_alpha line of this Be-star became 
  an absorption line, which imply the star became a normal B-star 
  (vsnet-campaign-be 45).

  V767 Cyg		(RA = 20h16m51s.95, Dec = +53d11'21".1)

    As reported by T. Kinnunen, the poorly known dwarf nova V767 Cyg
  experienced an outburst (15.2mag on August 28) (vsnet-campaign 464).

  AO 0235+164		(RA = 02h38m39s.0, Dec = 16d37'05")

    Upon notification from L. Takalo, Nyrola team observed this blazer 
  and confirmed its brightening.  The magnitude on August 26 is V=17.56 
  and R=17.02 (vsnet-campaign-blazer 56).

  AO Oct		(RA = 21h04m59s.07, Dec = -75d21'22".5)

    The large-amplitude dwarf nova AO Oct started its rare outburst
  as reported by R. Stubbings on September 2 (14.4mag).  T. Kato commented 
  The large amplitude (the object is reported to be mag 21 at minimum)
  suggests an SU UMa-type dwarf nova, which may undergo a superoutburst
  (vsnet-campaign 468).
    Time-resolved photometry is very strongly encouraged. 

  LY Hya		(RA = 13h31m54s.30, Dec = -29d41'01".0)

    The SU UMa-type candidate LY Hya started its relatively rare
  outburst as reported by R. Stubbings on September 2 (14.0mag).
    Though it will be difficult to get time-series data, nightly snapshots to
  follow the outburst are still highly encouraged.

  V825 Her		(RA = 17h18m37s.03, Dec = +41d15'50".5)

    The NL-type cataclysmic variable V825 Her was reported bright (13.3mag 
  on September 2).  More observations are needed to confirm the nature 
  of the brightening (vsnet-campaign 470).

  HadV27		(RA = 04h48m24s.53, Dec = +41d49'45".1)

    T. Kinnunen reported the brightening of this object.  The magnitude 
  was 14.2mag on September 3 although the object was mostly at mv=14.7 
  in the 1999 season.  T. Kato reported the object apparently coincides 
  with a 2MASS star, and the object is not particularly red compared to USNO
  (vsnet-campaign 471).

(continuous targets)
  V368 Peg		(RA = 22h58m43s.5, Dec = +11d09'13")

    N. Butterworth posted the time-series photometry on August 29 and 30 to 
  [vsnet-campaign-data 36 and 37], respectively.  M. Moilanen and A. Oksanen 
  posted the time-series data on August 27/28 to [vsnet-campaign-data 38].
    The superoutburst is now ongoing.  More time-series observations 
  are strongly encouraged.

  V1062 Cyg		(RA = 21h08m12s.60, Dec = +36d49'16".6)

    The fading from the outburst was observed in the last week 
  (vsnet-campaign-dn 128).  It is now at quiescence.

  V405 Vul		(RA = 19h53m05s.0, Dec = +21d14'50")
    T. Vaunmunster reported the fully grown superhumps with the amplitude 
  of 0.4mag observed on August 29/30 (vsnet-campaign 459).  
  J. Pietz reported his CCD observations before the current outburst 
  including an outburst in 1999 July/August (vsnet-campaign 466).
    The final stage of the superoutburst should be observed closely.

  V1141 Aql		(RA = 19h37m10s.01, Dec = +02d35'59".2)

    The outburst is still ongoing.  The observation by M. Reszelski 
  shows the magnitude on September 2 to be 15.4: mag (vsnet-campaign-dn 132).

  Rho Cas		(RA = 23h54m22s.99, Dec = +57d29'58".7)

    The fading is still ongoing.  The observation by J. Ripero shows 
  the magnitude on August 31 to be 5.4mag (vsnet-campaign-rhocas 7).

  V550 Cyg		(RA = 20h05m05s.21, Dec = +32d21'21".0)

    The fading from the superoutburst was observed during the last week.  
  The observation by T. Kinnunen shows the magnitude on August 28 to be 
  16.2mag (vsnet-campaign-dn 129).

  Delta Sco		(RA = 16h00m19s.9, Dec = -22d37'17")

    The slowly fading continues (vsnet-campaign-be 48).  B. Fraser reported 
  the observation on September 1 yielding V=2.12 (vsnet-campaign-be 47).

  SN 2000cx		(RA = 01h24m46s.15, Dec = +09o30'30".9)
    The fading continues.  The current magnitude is about 15.0mag 
  (vsnet-campaign-sn 61).

  XTE J1118+480         (RA = 11h18m10s.9, Dec = +48d02'12".9)

    M. Uemura reported the fading trend continues during the last week.  
  The magnitude is near that of quiescence (18.8mag) (vsnet-campaign-xray 44).

  V446 Her		(RA = 18h57m21s.51, Dec = +13d14'27".3)

    A new outburst of this object was detected by L. T. Jensen.  
  The outburst magnitude is V~15.5.  It is quite important to reveal
  the whole outburst shape and the recurrence pattern in V446 Her
  in order to understand the physics of the accretion disk in
  post novae (vsnet-campaign 460).

  CI Aql		(RA = 18h52m03s.6, Dec = -01d28m38.9s)

    The time-series photometry observed by S. Kiyota on August 25, 28, and 29 
  can be seen in [vsnet-campaign-data 39, 40, and 41], respectively.

  PKS2005-489		(RA = 20h05m47s.4, -48d58'45".0)

    This blazer was reported to be bright again (12.8mag on August 31) 
  (vsnet-campaign-blazer 55).

*** Future schedule ***

  EF Eri (HST observation)

    Researchers at Goettingen have a plan to observe this AM Her star 
  with HST in near future, and strongly want to know the current state 
  of this star.  D. Nogami provides the location (RA: 03h 14m 13.21s, 
  Dec: -22o 35' 42.7'' (J2000)) and the sequence 
  in [vsnet-campaign 467].
    For more detailed information, please contact with D. Nogami 

  V446 Her campaign (throughout this summer)

    Boris T. Gaensicke organize a campaign on the post nova V446 Her (V~18). 
  Their aim is to obtain a *good* contiguous light curve of V446 Her that
  covers 2-3 dwarf nova-like outbursts of the system, in order to compare 
  its outburst characteristics to those of ``normal'' dwarf novae. 
  They invite those of you equipped with a CCD camera to obtain a couple 
  of images of V446 Her per night throughout the next three months, say, 
  until the end of September.
    For more information, please see [vsnet-campaign 325] or contact 
  with Boris T. Gaensicke (boris@uni-sw.gwdg.de).
    In [vsnet-campaign 446].....    
  "Now, one and a half month later, we present a preliminary lightcurve
   which you can find at

   The light curve is very interesting, ......
   Hence we again invite those of you equipped with a CCD camera to
   obtain a couple of images of V446Her per night at least until the
   end of September. Together we can rewrite the post nova scenario !!!"

*** General information ***

    T. Vanmunster submitted a paper on this object to IBVS.
    The preprint can be seen in [vsnet-preprint 10]
					[vsnet-campaign 458]

  SN 1999em
    D. Bishop informed an image taken by T. Puckett can be seen at:
					[vsnet-campaign-sn 59]

  EF Eri
    The location and the sequence, see [vsnet-campaign 467]

(This summary is reproduction free.)

Makoto Uemura

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