[vsnet-alert 11694] Re: Bright eruptive object in Eridanus
Hiroyuki Maehara
maehara at kwasan.kyoto-u.ac.jp
Fri Nov 27 00:55:49 JST 2009
M. Fujii (Okayama, Japan) obtained a low-resolution spectrum
of the object. He reports that the spectrum shows the Balmer
(FWHM of H_alpha emission is 3200 km/s), He I (447.1, 501.6,
587.6, 667.8, 706.5 nm), N III (464.0 nm), Na I D (589.2 nm),
O I(777.3, 844.6 nm), and Mg II (823.2 nm) emission lines.
http://otobs.org/FBO/fko/nova/pn_eri_20091126.gif
I also obtained a spectrum of the object which shows broad Balmer,
He I, and N III emission lines. The FWHM of H_alpha emission is 3400km/s.
http://www.kwasan.kyoto-u.ac.jp/~maehara/novae/ERInova2009_20091126.gif
These features suggest that this object is a He/N nova.
On Thu, Nov 26, 2009 at 02:21:57PM +0900, Taichi Kato wrote:
> According to CBET 2050, Itagaki-san has discovered a bright (8.1 mag)
> eruptive object in Eridanus (position 044754.21 -101043.1).
> Although this object has been suggested to be a possible nova,
> the object might also be a WZ Sge-type dwarf nova.
> Spectroscopic and time-resolved photometric observations are urged.
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