[vsolj-alert 958] VSNET Weekly Campaign Summary

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

From owner-vsnet-campaign@kusastro.kyoto-u.ac.jp Tue Nov  6 06:41 JST 2001
To: vsnet-campaign
Date: Tue, 06 Nov 2001 06:41:26 +0900
From: Makoto Uemura <uemura@kusastro.kyoto-u.ac.jp>
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Subject: [vsnet-campaign 1210] VSNET Weekly Campaign Summary
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VSNET Weekly Campaign Summary

*** Last week news ***

(new targets)
  CI UMa		(RA = 10h18m13s.01, Dec = +71d55'42".8)

    As reported by T. Kinnunen on October 29, the SU UMa-type dwarf 
  nova CI UMa is undergoing a superoutburst.  It was 13.8mag on 
  October 29.  The supercycle of this system has not been yet firmly 
  established; there is even a possibility that the system does not 
  have a firm supercycle what could be unexpected (vsnet-campaign-dn 1202).  
  The Kyoto team performed time-series observations on October 30 
  and 31 (vsnet-campaign-dn 1817), and detected 0.3mag superhumps 
  with a period about 0.0630(9) d.  This observation confirmed the 
  short-period nature of CI UMa (vsnet-campaign-dn 1820).
  The superoutburst is still ongoing (vsnet-campaign-dn 1840).

  
  1RXS J232953.9+062814 (RA = 23h29m54s.30, Dec = +06d28'10".9)

    P. Schmeer reported an outburst of 12.5mag on November 3 
  (vsnet-campaign 1205).  The Kyoto team performed time-series 
  observation on November 4 (vsnet-campaign 1206), and detected 
  strong humps with a short period of 0.043 day 
  (vsnet-campaign 1208, 1209).


  SN 2001fc		(RA = 21h08m26s.69, Dec = +18d11'17".0)

    IAUC 7741 reported the discovery of SN 2001fc on October 28.  
  H. Yamaoka reported that the host galaxy UGC 11683 is a eastern 
  component of a pair KPG 553.  The expected maximum for typical 
  SN Ia is about mag 15.8 (vsnet-campaign-sn 270).
 
 
  SN 2001fd		(RA = 22h14m29s.64, Dec = +05d01'37".6)

    IAUC 7742 reported the discovery of SN 2001fd in UGC 11957 
  on November 1 and 2.  H. Yamaoka reported that the expected 
  maximum for typical SN Ia in UGC 11957 is about 17mag 
  (vsnet-campaign-sn 271).


  SN 2001fe		(RA = 09h37m57s.10, Dec = +25d29'41".3)

    IAUC 7742 reported the discovery of SN 2001fe in UGC 5129 on 
  November 2 and 3.  H. Yamaoka reported that the expected maximum 
  for typical SN Ia in UGC 5129 is mag about 15.3 (vsnet-campaign-sn 271).


  SN 2001ff		(RA = 08h57m00s.97, Dec = +13d11'59".5)

    IAUC 7743 reported the discovery of SN 2001ff in UGC 4685 on 
  November 2 and 3.  H. Yamaoka reported that the expected maximum 
  for typical SN Ia in UGC 4685 is about 15.3mag (vsnet-campaign-sn 271).


  T Leo			(RA = 11h38m26s.96, Dec = +03d22'08".1)

    As reported by J. Gunther on October 30, this dwarf nova 
  experienced an outburst.  The bright magnitude of 10mag and 
  the duration indicate that it is a superoutburst 
  (vsnet-campaign-dn 1799, 1813).  The possible superoutburst 
  continues.  It is now about 10.5mag (vsnet-campaign-dn 1822, 1828).

  
  SU UMa		(RA = 08h12m28s.20, Dec = +62d36'22".6)

    An outburst was reported on October 23 by T. Kinnunen at 13.7mag.  
  The object further brightened to 11.3mag as reported by J. Gunther 
  on October 30 (vsnet-campaign-dn 1800).


  TK4			(RA = 19h13m58s.47, Dec = +40d44'09".1)

    An outburst of 14mag was reported on October 31 (vsnet-campaign 
  1203, vsnet-campaign-dn 1814, 1827), however it seems to be 
  mis-identified (vsnet-campaign-dn 1830, 1832, 1833, 1836).


(continuous targets) 
  AM  Cas		(RA = 02h26m23s.40, Dec = +71d18'32".3)

    The strong activity is still ongoing (vsnet-campaign-dn 
  1798, 1835).


  Possible Nova in SMC	(RA = 00h46m27s.56, Dec = -73d29'46".21)

    B. Liller performed low-resolution spectroscopy and detected 
  a strong narrow H-alpha emission line whose FWHM is 1525 (75) km/s 
  (vsnet-campaign-nova 648, 651).  B. Liller reported a revised 
  position of the nova as shown above (vsnet-campaign-nova 652).

 
  TV Col		(RA = 05h29m25s.5, Dec = -32d49'05".2)

    M. Uemura reported that the object again experienced an outburst 
  of 13.2mag on October 31.  The last outburst was reported eight 
  days before this outburst (vsnet-campaign-ip 65).

 
  AM Her		(RA = 18h16m13s.4, Dec = +49d52'03".1)

    The fading continues and the current magnitude is about 14.2mag 
  (vsnet-campaign 1204).


  U Gem                 (RA = 07h55m05s.55, Dec = +22d00'09".2)

    The outburst passed the peak of this outburst, and then, 
  started gradual fading.  The object is now about 9.5mag 
  (vsnet-campaign-dn 1796, 1802, 1807, 1815, 1824, 1829, 1834).


  SDSSp J173008.38+624754.7	(RA = 17h30m08s.38, Dec = +62d47'54".7)

    The rapid fading from the outburst was reported on October 29 
  (vsnet-campaign-dn 1801, 1804, 1806).  T. Vanmunster performed 
  time-series observations on October 28/29 and reported the revised 
  superhump period to be 0.07933(4)d (vsnet-campaign-dn 1803).  His 
  data showed rapid decline with a rate of 3mag/d.  M. Uemura reported 
  the humps were still visible in the light curve on October 28 and 29.  
  In October 28 light curve, we can see the sudden growth of a late 
  superhump.  On October 29, the phase of humps was apparently shifted 
  (vsnet-campaign-dn 1810).  The gradual fading continued at least 
  until October 30 when the Kyoto team detected a possible humps in the 
  light curve (vsnet-campaign-dn 1819).  The light curve on October 31 
  shows sinusoidal variations (vsnet-campaign-dn 1831).


  IP Peg		(RA = 23h23m08s.7, Dec = +18d24'59".1)

    The outburst finished (vsnet-campaign-dn 1823).


  Nova Cen 2001		(RA = 13h55m41s.27, Dec = -64d15'57".9)

    It is fading from the second maximum.  The object now seems 
  to be fainter than about 12.0mag  (vsnet-campaign-nova 649, 653).


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

    The object became slightly fainter (vsnet-campaign-nl 50).


  V2275 Cyg	        (RA = 21h03m02s.00, Dec = +48d45'52".9)

    The nova is smoothly fading (vsnet-campaign-nova 650).


  WZ Sge		(RA = 20h07m36s.53, Dec = +17d42'15".3)

    The slow fading continues (vsnet-campaign-dn 1797, 1805, 1821, 
  1826, 1837).  On October 31, it was noticed that the object 
  became slightly brighter (vsnet-campaign-dn 1808, 1811, 1812), 
  but no major rebrightening has been detected (vsnet-campaign-dn 
  1816, 1818).  On October 30, the hump amplitude was 0.35 mag, 
  with a general profile resembling singly humped superhump-like 
  one (vsnet-campaign-dn 1816).

      
*** Future schedule ***

  WZ Sge campaign 
    D. Steeghs wrote:
	"Several of us are organizing a campaign on the current outburst 
  of WZ Sge, using a large variety of ground based facilities as well as 
  space observatories.  A web-page has been setup listing the scheduled 
  observations so far which we intend to keep up to date at:

	http://vsnet.astro.soton.ac.uk/~ds/wzsge.html
  "
  For more information, see [vsnet-campaign 1039]


  Supernova campaign: A great opportunity for amateurs by M. Schwartz.
    For more detailed information, see [vsnet-campaign-sn 233]
    announce on the HST observations, see [vsnet-campaign-sn 240, 246]
 

  International Conference on Classical Nova Explosions
	 Sitges (Barcelona), Spain: 20-24 May 2002
    For more detailed information, see http://vsnet.ieec.fcr.es/novaconf
					[vsnet-campaign-nova 643]


*** General information ***

  WZ Sge
    eclipse ephemeris, see [vsnet-campaign-dn 1825].

  TK4
    image by A. Henden:
	http://ftp.nofs.navy.mil/pub/outgoing/aah/temp/tk4v.jpg
					[vsnet-campaign-dn 1838, 1839,
							1841, 1842]


(This summary can be cited.)	

Regards,
Makoto Uemura

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