[vsolj-alert 816] VSNET Weekly Campaign Summary

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

From owner-vsnet-campaign@kusastro.kyoto-u.ac.jp Tue Sep 12 03:32 JST 2000
To: vsnet-campaign
cc: uemura
Date: Tue, 12 Sep 2000 03:32:01 +0900
From: Makoto Uemura <uemura@kusastro.kyoto-u.ac.jp>
X-Distribute: distribute [version 2.1 (Alpha) patchlevel=24]
Subject: [vsnet-campaign 485] VSNET Weekly Campaign Summary
Content-Type: text
Content-Length: 7368

VSNET Weekly Campaign Summary
 
*** Last week news ***

(new targets)
  SN 2000dj		(RA = 01h56m40s.63, Dec = +34d10'12".4)

    The Lick KAIT team has discovered a mag 17 SN, SN 2000dj.  
  The position is about 32" east and 24" south of the nucleus of the tilted 
  spiral (Sb) galaxy NGC 735.  The reported brightness indicate that this 
  SN is in the rising phase. H. Yamaoka commented in [vsnet-campaign-sn 69] 
  that NGC 735 has produced another SN 1972L, and it is quite close to the 
  reported position of SN 2000dj.  H. Yamaoka further wrote in 
  [vnset-campaign-sn 72] that comparing SN 2000dj image by G. Sostero, he 
  could not get the firm impression whether the positions are identical 
  or not, though he felt that SN 2000dj is slightly eastward than SN 1972L.
  D. Bishop informed he obtained a SN 2000dj image from M. Armstrong and 
  the URL (http://vsnet.ggw.org/asras/sn2000/n735s2.jpg)(vsnet-campaign-sn 73).
    More accurate astrometry and spectral confirmations are strongly urged.

 
  RS Oph		(RA = 17h50m13s.56, Dec = -06d42'30".6)

    The recurrent nova RS Oph was reported slightly brighter than usual 
  (vsnet-campaign-nova 82).  Confirmations are urged.
  

  V730 Sgr              (RA = 19h23m00s.79, Dec = -28d29'29".2)

    V730 Sgr whose rare outburst was observed in early August 2000 
  again showed another outburst on September 5 (vsnet-campaign-dn 138).
    Observations are encouraged.


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

    As reported in IAUC 7487, the RXTE all-sky monitor detected an X-ray
  outburst of V635 Cas = 4U 0115+63.  The rise of X-ray on August 27
  coincides with, but may slightly precede the optical outburst, reported
  by G. Poyner in [vsnet-alert 5223] (vsnet-campaign-xray 48). 
  B. Sumner presented a sequence for observations in [vsnet-campaign 481].
  The fading was observed in the end of the last week (vsnet-campaign-xray 52).
 

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

    The object became slightly fainter from the bright state (14.3mag on 
  September 7 by M. Reszelski, vsnet-campaign 483).


  AO Oct		(RA = 21h04m59s.07, Dec = -75d21'22".5)
 
    T. Kato wrote in [vsnet-campaign 477] that the fade of 0.8 mag 
  in three days may look rapid for typical superoutbursts of SU UMa stars, 
  which may suggest that AO Oct is an SS Cyg type dwarf nova, or may belong 
  to large-amplitude rapid faders among SU UMa-type systems, like V592 Her.


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

    The data observed by L. Kral on August 27 can be available in 
  [vsnet-campaign-data 44].  The long superoutburst may be enter the 
  final fading stage on September 7 (at 14.8mag, vsnet-campaign-dn 142).


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

    Although a fading trend from the long outburst was observed in the 
  end of August, V1062 Cyg is still bright, furthermore, even brighter.  
  T. Kato commented the behavior looks unlike that of a dwarf nova 
  (vsnet-campaign 474).  The magnitudes in the early September far exceed 
  the GCVS maximum (15.5p) (vsnet-campaign 475).
    It is confirmed that the object was still bright on September 7 
  (at 14.8mag, vsnet-campaign 482).  Observations (including spectroscopy) 
  are encouraged to reveal the nature of the object.  


  V405 Vul		(RA = 19h53m05s.0, Dec = +21d14'50")

    T. Vanmunster reported the outburst still continues on September 6, 
  which means the outburst lasts at least 14 days (vsnet-campaign 479).
    Observations are strongly encouraged.


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

    The object is still in the fading state at around 5.0-5.3mag 
  (vsnet-campaign-rhocas 8). 
    Close monitorings are encouraged.


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

    S. Otero reports Delta Sco has recently seemed to be fading a little 
  faster (vsnet-campaign-be 50).  B. Fraser reported the magnitude on 
  September 6 to be V=2.13 (vsnet-campaign-be 51).
    Close monitorings are encouraged.


  SN 2000cx		(RA = 01h24m46s.15, Dec = +09o30'30".9)

    According to the mail forwarded by H. Yamaoka, we can see a new 
  light curve of SN 2000cx presented by O. Trondal (see, below 'General 
  Information', or vsnet-campaign-sn 68).  The fading continues, and   
  the current magnitude is about 16mag (vsnet-campaign-sn 66).


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

    B. Sumner presented a sequence for observations in [vsnet-campaign 480].


  AQ Eri		(RA = 05h06m12s.99, Dec = -04d08'01".6)
  
    The superoutburst was terminated on September 5.  Close monitorings 
  to detect a possible rebrightenings are encouraged (vsnet-campaign-dn 139).


  IK Nor		(RA = 16h25m29s.71, Dec = -55d20'07".6)

    The outburst started fading from September 5 (vsnet-campaign-dn 140).


  NSV 26158             (RA = 23h53m51.02s and Dec = +23d09'19.5")

    The fading from the possible outburst was still ongoing in the last 
  week.  The current magnitude is about 15.5mag (vsnet-campaign 484).


*** 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 
  (http://ftp.nofs.navy.mil/pub/outgoing/aah/sequence/sumner/eferi.seq)
  in [vsnet-campaign 467].
    For more detailed information, please contact with D. Nogami 
  (daisaku@uni-sw.gwdg.de).

 
  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
   "http://alpha.uni-sw.gwdg.de/~mschrei/v446her/light.gif";.

   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 ***

  V446 Her
    Sequence presented by B. Sumner, see [vsnet-campaign 480]

  V635 Cas
    Sequence presented by B. Sumner, see [vsnet-campaign 481]

  O. Trondal's new SN web page
    H. Yamaoka forwarded a mail from O. Trondal which inform a new SN web 
  page:
	http://vsnet.geocities.com/SiliconValley/Garage/9531/curves.htm
				[vsnet-campaign-sn 64]

  SN 2000cx
    New light curve presented by O. Trondal:
	http://vsnet.geocities.com/SiliconValley/Garage/9531/curves.htm
				[vsnet-campaign-sn 68]

  SN 2000dj
    Image by M. Armstrong
	http://vsnet.ggw.org/asras/sn2000/n735s2.jpg
				[vsnet-campaign-sn 73]

(This summary is reproduction free.)

Regards,
Makoto Uemura

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp