VSNET Weekly Campaign Summary *** Last week news *** (new targets) SN 2001fh (RA = 21h20m42s.50, Dec = +44d23'53".2) IAUC 7744 tells the discovery of SN 2001fh at r=17.87 by the KAIT team on November 3.2 and 5.2. H. Yamaoka reported that PGC 66592, the host galaxy of SN 2001fh, is a spiral galaxy enbedded on the Galactic plane. The expected maximum of SN Ia on the distance of this galaxy is mag about 15.2, but there is a large obsecuration by the interstellar medium in our Galaxy (vsnet-campaign-sn 272). The Asiago team and the CfA team has taken the spectrum around Nov. 7.0. It was revealed that it was of type Ia slightly before maximum (vsnet-campaign-sn 274). SN 2001fu (RA = 08h52m16s.58, Dec = -17d44'29".8) The discovery of SN 2001fu was made on Nov. 5.5 at mag about 15.1. The position is about 25" west and 11" north of the nucleus of the spiral galaxy MCG -03-23-11 (vsnet-campaign-sn 273). The CfA team also observed SN 2001fu and revealed that it was of type Ia a few weeks past maximum. They measured the recession velocity of the host galaxy as 1730 +/- 30 km/s. The expected maximum for typical unreddened SN Ia in this galaxy is mag about 13.5, which occured probably on some date in 2001 September or October (vsnet-campaign-sn 274). 4U 1608-522 = QX Nor (RA = 16h12m42s.6, Dec = -52d25'21") According to ATEL #77 (Rutledge), this X-ray transient (neutron star transient) is in outburst, based on RXTE/ASM observations (vsnet-campaign-xray 95). EY Cyg (RA = 19h54m36s.77, Dec = +32d21'54".7) The object is now in a rare outburst as reported by H. McGee on November 8 (vsnet-campaign-dn 1862). The outburst is still ongoing, and the current magnitude is about 12.6mag (vsnet-campaign-dn 1867, 1881). SAX J2043.6+7717 (RA = 20h43m42s.48, Dec = +77d17'34".8) Heise et al. reported in GCN 1138 that this X-ray rich and weak gamma-ray transient is a totally new class of transient phenomena. X-ray emissions during its eruption is non-thermal and the ourburst duration is less than a few thousand seconds. The optical and infrared counterpart of this object have not been significantly detected (vsnet-campaign-xray 96). SN 2001fv (RA = 11h04m01s.66, Dec = +28d01'55".7) IAUC 7750 tells the discovery of SN 2001fv at 16.8mag by M. Armstrong on November 3. H. Yamaoka reported that NGC 3512, the host face-on spiral galaxy of SN 2001fv, has nearly the same distance as the Virgo Cluster. The expected maximum for typical SN Ia is mag about 13. The maximum, however, was possibly missed during the solar conjunction (vsnet-campaign-sn 275). CC Cnc (RA = 08h36m19s.17, Dec = +21d21'05".4) As reported by M. Simonsen on November 10, the SU UMa-type dwarf nova CC Cnc is undergoing a bright outburst (13.2mag). The present outburst may be a superoutburst. Since the superhump period has not been precisely determined yet, we would encourage time-series observations to precisely determine the superhump period, superhump excess and the period change (vsnet-campaign 1221). AK Cnc (RA = 08h55m21s.21, Dec = +11d18'14".7) As reported by M. Simonsen on November 10, the SU UMa-type dwarf nova AK Cnc is undergoing an outburst (13.2mag). The brightness may suggest a superoutburst, though there was already one in this April (vsnet-campaign 1222). The outburst is still ongoing (vsnet-campaign-dn 1872). (continuous targets) CI UMa (RA = 10h18m13s.01, Dec = +71d55'42".8) The analysis of the Kyoto Oct. 31 - Nov. 4 data has yielded a superhump period of 0.0628 d. The amplitude of superhumps has decreased during this interval (vsnet-campaign-dn 1846). 1RXS J232953.9+062814 (RA = 23h29m54s.30, Dec = +06d28'10".9) The short periodicity of superhumps were confirmed by T. Vanmunster on November 5/6. This object is now a new SU UMa star below the period minimum (vsnet-campaign 1211, 1212, 1213). The observational campaign has become extensive. The VSNET collaboration team has obtained time-series observations from the Kyoto team (vsnet-campaign-dn 1853, 1875), D. Starkey (vsnet-campaign-dn 1843), J. Pietz (vsnet-campaign-dn 1847), S. Kiyota (vsnet-campaign-dn 1850, 1858), T. Vanmunster (vsnet-campaign-dn 1863), K. Torii (vsnet-campaign 1220), T. Tanabe and K. Matsumoto (vsnet-campaign 1220), T. Krajci (vsnet-campaign 1224), and A. Giambersio. According to Jingyao et al (1998), The outburst spectrum resembles that of an A-star. The quiescent spectrum was dominated by Balmer and He I emission lines, indicating that the object is not hydrogen-poor (vsnet-campaign-dn 1844). Time-resolved spectroscopy during quiescence had been performed by Zharikov and Tovmassian. They reported that a possible orbital period of 0.0446 d, indicating the superhump excess of 3.7% (vsnet-campaign-dn 1852). During this outburst, spectroscopy and infrared photometry were taken by Dr. David Barrado y Navascues at Calar Alto (vsnet-campaign-dn 1860). The Gunma team also performed spectroscopy and reported a spectra with weak absorption lines of H-beta, H-gamma and H-delta, and the H-alpha emission (vsnet-campaign-dn 1861). B. Skiff reported a proper motion of this object to be 0".049/yer using USNO-A2.0 and GSC-2.2 catalogues (vsnet-campaign-dn 1851). H. Yamaoka also reported to be 0".05 - 0".06 /yr using the Kyoto images (vsnet-campaign-dn 1857). The superhump period was calculated to be 0.046330(10) d (vsnet-campaign-dn 1845, 1847, 1854). T. Kato reported a period increase of superhumps. The mean period derivative is dot{P}/P = 6x10^(-5) (vsnet-campaign-dn 1859). The amplitude of humps became smaller with time, and on November 7, the object rapidly faded (vsnet-campaign 1218, 1219). The fading rate became gradual on November 9 (vsnet-campaign-dn 1864). On late November 9, the object experienced a rebrightening reaching 13.0mag (vsnet-campaign 1220). During this rebrightening, T. Vanmunster detected superhumps as in the plateau phase (vsnet-campaign 1223, 1225). It has faded with the duration of about 1 day (vsnet-campaign-dn 1876, 1877, 1878). T. Kato wrote in [vsnet-campaign-dn 1879] that the persistence of superhumps is similar to ER UMa stars (vsnet-campaign-dn 1879). The D. Starkey's data on the fading phase show a slightly shorter periodicity of 0.04608(4) d, indicating a possible orbital modulations (vsnet-campaign-dn 1880). T Leo (RA = 11h38m26s.96, Dec = +03d22'08".1) The superoutburst seems to finish around November 6 (vsnet-campaign-dn 1855, 1871). AM Cas (RA = 02h26m23s.40, Dec = +71d18'32".3) The outburst is still ongoing. The current magnitude is about 12.8mag (vsnet-campaign-dn 1868). U Gem (RA = 07h55m05s.55, Dec = +22d00'09".2) The outburst is fading now (vsnet-campaign-dn 1856, 1869). SDSSp J173008.38+624754.7 (RA = 17h30m08s.38, Dec = +62d47'54".7) The observation on November 6 by the Kyoto team showed the object brightened again. This brightening may be a post-superoutburst rebrightening, or may represent the start of the phase of recurring normal outbursts. In the latter case, the recurrence time is expected to be short as inferred by the observation (vsnet-campaign-dn 1849). Nova Cen 2001 (RA = 13h55m41s.27, Dec = -64d15'57".9) The object was further fading under 12.5mag (vsnet-campaign-nova 654). MV Lyr (RA = 19h07m15s.93, Dec = +44d01'10".7) The object is rather steady at around 13.4mag (vsnet-campaign-nl 51). WZ Sge (RA = 20h07m36s.53, Dec = +17d42'15".3) The slow fading still continues. The object is now about 14.9mag (vsnet-campaign-dn 1870, 1882). BL Lac (RA = 22h02m42.86s, Dec = +42d16'37.6") The object was slightly brighter (vsnet-campaign-blazar 231). RU Peg (RA = 22h14m02s.58, Dec = +12d42'11".4) The object is rather active around about 12.2mag (vsnet-campaign-dn 1873). DW Cnc (RA = 07h58m56s.80, Dec = +16d16'48".2) The object is still acrive (vsnet-campaign-dn 1874, vsnet-campaign-nl 52). *** 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] Blazar meeting at Tuorla: June 17-21, 2002 for more information, see http://vsnet.astro.utu.fi/blazar02 [vsnet-campaign-blazar 232] *** General information *** 1RXS J232953.9+062814 Superhump light curve by the Kyoto team: http://ftp.kusastro.kyoto-u.ac.jp/pub/vsnet/DNe/J2329/hump.gif [vsnet-campaign 1214] Image during the outburst by the Kyoto team: http://ftp.kusastro.kyoto-u.ac.jp/pub/vsnet/DNe/J2329/im.gif [vsnet-campaign 1215] VSNET web page: http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/J2329.html [vsnet-campaign 1216] ROSAT CVs in Jingyao, H. et al., 1998, Ann. Shanghai Obs., Acad. Sin., 19, 235 1RXS_J012750.5+380830 012750.60 +380812.0 R=16.8 (UG:) 1RXS_J062518.2+733433 062516.23 +733438.9 R=14.5 (UG:) 1RXP_J113123+4322.5 113122.40 +432238.0 R=14.9 (UG:) 1RXS_J230949.6+213523 230949.28 +213519.0 R=15.6 (*) [vsnet-campaign 1217] TK4 revised chart presented by A. Henden: http://ftp.nofs.navy.mil/pub/outgoing/aah/temp/tk4v.jpg [vsnet-campaign-dn 1865, 1866] WZ Sge eclipse ephemeris, see [vsnet-campaign-dn 1883] (This summary can be cited.) Regards, Makoto Uemura