Bright Nova (mag 7) in southern hemisphere

[Francois Teyssier]

From VSNET alert list:

PNV J11261220-6531086 (N)

RA 11h26m15.30s, DEC -65°31'26.3" (J2000.0; Daniel Bamberger)
2018 Jan. 14.4861 UT, V= 7.0 mag
Discoverer: Rob Kaufman, Bright, Victoria, Australia

Follow-up reports:
http://www.cbat.eps.harvard.edu/unconf/ ... 31086.html

[Paolo Berardi]

Discovered and confirmed as a classical nova (with an SA100 grating) by an amateur astronomer, fantastic!

Paolo

[Francois Teyssier]

Terry Bohlsen has got a nice spectrum of H alpha line
with mean velocities of the two absorptions = -700 and -1500 km/s. Max velocity ~ 2000 km/s

asdb_novamus2018_20180116_475.png (16.37 KiB) Viewed 7496 times

ARAS Eruptive stars database : http://www.astrosurf.com/aras/Aras_Data ... us2018.htm

[Francois Teyssier]

And the ATel:
http://www.astronomerstelegram.org/?read=11183


ATEL #11183 ATEL #11183

Title: High resolution optical spectroscopy of nova Mus 2018 = PNV
J11261220-6531086
Author: Terry C. Bohlsen (ARAS group, Mirranook Armidale,
Queries: shore@df.unipi.it
Posted: 17 Jan 2018; 11:52 UT
Subjects:Optical, Nova

Nova Muscae 2018 (PNV J11261220-6531086), discovered o 2018 Jan. 14.5
(V=7.0) was observed spectroscopically on 2018 Jan. 16.46 (MJD 58134.982),
with a LHIRES spectrograph mounted on a C11 reflector (35micron slit, 2400
lines/mm, R > 11000) with a total exposure time of 1200 sec in the interval
6520-6690A. At the time, the AAVSO reported V ~ 7. The spectrum at Halpha
shows a broad, optically thick emission profile with absorption components
at -1540 and -650 km/s (the higher velocity is the broader component).
Some residual emission is also visible beyond -1700 km/s. The redward
emission wing extends to at least +2500 km/s, S/N is about 100 in the continuum,
the emission being redward extended (skewed) and with peak intensity of
about 10 (emission EW ~ 360 A). The He I 6678A line is not detected. The
line profile and velocities are typical of the post-maximum stage of expansion,
its brightness suggests this classical nova may also be detected at high
energy, especially with Fermi. The nova is clearly still in its declining
optically thick stage, the low resolution spectrum from Jan. 14 reported
by Kaufman (AAVSO Alert 609) shows Balmer emission lines of comparable
with to that described here. Further observations are encouraged.

ARAS Nova Database: http://www.astrosur ... /Novae.htm

Congratulations, Terry!

François

[Ken Harrison]

Managed to get an Ha spectrum of Nova Musca 2018 last night.
Similar to Terry's result.

NovaMusca170118.png (28.43 KiB) Viewed 7457 times

[etienne bertrand]

Congratulations.

[Ken Harrison]

Thanks.
No spectra tonight, the ambient temperature is still around 30 deg......