[IAUC] CBET 3287: 20121101 : NOVA AQUILAE 2012 = PNV J18523496-0018423

quai en eps.harvard.edu quai en eps.harvard.edu
Jue Nov 1 13:50:07 ART 2012


                                                  Electronic Telegram No. 3287
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau en eps.harvard.edu (alternate cbat en iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


NOVA AQUILAE 2012 = PNV J18523496-0018423
     R. J. Rudy, E. A. Laag, K. B. Crawford, and R. W. Russell, Aerospace
Corporation; R. C. Puetter, University of California at San Diego; and R. B.
Perry, Langley Research Center, NASA, report on 0.47- to 2.5-micron
spectroscopy of the possible nova in Aql reported on CBET 3273, using the
3-m Shane reflector of Lick Observatory and the Aerospace Corporation's
VNIRIS spectrograph on the nights of Oct. 27 and 28 UT.  The object is a
nova of the Fe II type but is extremely heavily reddened.  In addition to
Fe II and H I, the object displays a very strong Ca II infrared triplet
along with strong lines of C I, N I, and O I.  He I lines are weak but
present.  The O I lines suggest a reddening of E(B-V) around 2.5, implying
more than seven magnitudes of visual extinction.  This large value is
consistent with the steeply rising optical continuum.  The hydrogen lines
have FWMH between 900 and 1000 km/s.  P-Cyg components are seen on some of
the H I, C I, N I, and O I lines and extend out to 900 km/s from line
center.  Carbon monoxide emission is present, indicating that molecule
formation is ongoing, with dust formation likely to follow.  Magnitudes
derived from the spectroscopy for Oct. 28.05 are:  V(Bessell) = 14.1,
R(Bessell) = 12.0, J = 7.5, H = 6.5, K-short = 5.9.

     Further to CBET 3273, Gustav Holmberg (Lund, Sweden) reports
magnitude V = 14.11 for PNV J18523496-0018423 from a remote observation
using the Sierra Stars 0.37-m Cassegrain telescope located at the Winer
Observatory near Sonoita, AZ, U.S.A., on Oct. 29.065 UT.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2012 CBAT
2012 November 1                  (CBET 3287)              Daniel W. E. Green



Más información sobre la lista de distribución Iauc