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IAUC 8506: V378 Ser = Poss. N IN Ser; 2005be

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                                                  Circular No. 8506
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
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V378 SERPENTIS = POSSIBLE NOVA IN SERPENS
     E. Kazarovets and N. N. Samus, Institute of Astronomy, Russian
Academy of Sciences, inform us that the designation V378 Ser has
been given to the nova first announced on IAUC 8505.
     A. Ederoclite, E. Mason, and M. Stefanon, European Southern
Observatory, report that spectroscopic observations, made on
Apr. 5.38 UT at the La Silla 2.2-m telescope (+ FEROS; spectral
range 380-900 nm, resolution 48000), confirm that V378 Ser is a
'Fe II' nova in outburst, with the spectrum dominated by strong
H_alpha and O I (1) and (4) emission lines at 777.3 and 844.6 nm.
The low ionization emission lines from Fe II (multiplets 27, 28,
37, 42, 48, 49, and 74), Na I (21), and Ca II (1) are also present.
All the Balmer and the O I lines are flanked by strong, double
P-Cyg absorptions, which provide average expansion velocities of
1340 +/- 40 and 820 +/- 40 km/s.  The bluest P-Cyg absorption is
very broad and results from a blend of two distinct absorptions;
these two components are clearly resolved in the Fe II multiplet
42, providing expansion velocities of about 1350 and about 1200
km/s.  The interstellar extinction appears relatively high due to
the fact that the Na D absorption is saturated.
     H. Yamaoka, Kyushu University, communicates that M. Fujii
(Okayama, Japan) obtained a spectrogram of this nova on Apr. 4.80
UT with a 0.28-m telescope.  The spectrum shows strong and broad
Balmer emission lines (FWHM = 1100 km/s for H_alpha) with P-Cyg
profile and several Fe II and O I 777.3-nm emission lines, which
suggests that it is a Fe II-class nova somewhat after maximum light.
     A. Takao, Kitakyushu, Japan, reports the following magnitudes
for the nova from his unfiltered CCD patrol images taken with a
120-mm f/4 zoom telephoto lens:  Feb. 21.847 UT, [13.0; 27.866,
[13.0; Mar. 6.855, [13.0; 15.847, [13.0; 20.842, 12.8; 30.818, 12.8.


SUPERNOVA 2005be
     Further to IAUC 8504, T. Puckett and T. Orff report the
discovery of an apparent supernova (mag 17.7) on an unfiltered CCD
frame taken with the 0.60-m automated supernova patrol telescope on
Apr. 5.27 UT.  The new object was confirmed on CCD frames taken on
Apr. 6.21 (at mag 16.0).  SN 2005be is located at R.A. =
14h59m32s.72, Decl. = +16o40'11".6 (equinox 2000.0), which is 5"
west and 5" north of the center a galaxy that is near UGC 9640.
Nothing is visible at this location on images taken by Puckett on
2002 Apr. 19 and 2003 Mar. 23 (limiting mag about 20.0).

                      (C) Copyright 2005 CBAT
2005 April 6                   (8506)            Daniel W. E. Green

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