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Re: possible nova in Sct 次の２本の情報が入っています。確かに典型的な新星にしては輝線幅が狭く、 continuum も多少変な様子ではあります。（V445 Pup みたいに "Possible nova" のままで GCVS 命名になったりして...）。個人的には、これまで（特にこのよう な段階での）こういう時期観測があまりなかったために、こういう変わった"新星" も実は結構あるのかも知れない、という印象を持っていますが、V838 Mon も 一時期 Fe II lines がみられたように、まだ正体はよくわかりません。 Subject: [vsnet-alert 7840] Spectral classification of the possible nova in Scutum The following report has been submitted to IAU Circulairs "We have observed the possible nova in Scutum that was announced on IAUC 8190 with the 1.22 m telescope + B&C spectrograph + CCD in Asiago on Aug 31.97 UT, at 0.23 nm/pix dispersion over the range 372 - 491 nm in cloudy sky conditions. The Balmer series is weakly in emission down to H-epsilon, and the line width is not appreciably larger than the instrumental profile (300 km/sec). The Balmer line profiles show a weak absorption component blushifted by 500 km/sec and a second emission peak red shifted by 650 km/sec with respect to the main emission line. The well developed absorption spectrum closely match that of a normal F2 supergiant, with normal intensity for s-element lines of 455.4 BaII and 407.8, 421.6 SrII." Corrado Boeche and Ulisse Munari, Asiago Observatory, Italy === Date: Mon, 01 Sep 2003 11:49:47 +0000 From: Maurice Gavin <m.gavin@astroman.fsnet.co.uk> Subject: Re: [vsnet-discovery-nova Nova Sct 2003 spectrum My recent spectrum of Nova Sct posted at http://home.freeuk.com/m.gavin/nsct03.htm The 'nova' does not display the classic nova spectrum but resembles V838Mon = Pec Nova Mon 2002 about 2002 Feb 3/4. regards Maurice Gavin www.astroman.fsnet.co.uk
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