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IAUC 8155: NOVAE IN M31; XTE J1814-338; 2003ge; V4745 Sgr

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IAUC number

                                                  Circular No. 8155
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)

     Further to IAUC 7709, M. Fiaschi, F. Di Mille, and D. Tiveron,
report the discovery of two apparent novae in M31 (= NGC 224) from
H_alpha CCD images.  One new object is located at R.A. =
0h42m58s.34, Decl. = +41o16'07".8 (equinox 2000.0), which is 158"
east and 1" south of the center of M31; available H_alpha
magnitudes:  Jan. 19, [18; June 19.034 UT, 16.5; 20.035, 16.6.  The
second new object is located at R.A. = 0h42m52s.22, Decl. =
+41o13'54".2, which is 89" east and 134" south of the center of
M31; available H_alpha magnitudes:  Jan. 19, [18; June 19.034,
15.6; 20.035, 15.7.  The reference stars for the H_alpha photometry
are from Ciardullo et al. (1987, Ap.J. 318, 520).  Generally, after
maximum, the nova color index R-[H_alpha] = +2 and remains
approximately constant; V-[H_alpha] tends to change from +2 to +3
with time.

XTE J1814-338
     D. Steeghs, Harvard-Smithsonian Center for Astrophysics,
reports on optical spectroscopy of XTE J1814-338 (cf. IAUC 8144) on
June 22.2 UT with the 6.5-m Magellan/Clay telescope (+ Boller &
Chivens spectrograph) at Las Campanas:  "Prominent hydrogen and
helium emission lines were detected in the spectrum of the optical-
counterpart candidate reported by Krauss et al. (IAUC 8154).  The
classic hallmarks of an interacting binary spectrum firmly
establishes the optical counterpart of the accreting pulsar.  The
strongest spectral feature was double-peaked H_alpha emission with
FWHM = 800 km/s and equivalent width 0.6 nm."

SUPERNOVA 2003ge IN NGC 6122
     T. Matheson, P. Challis, and R. Kirshner, Harvard-Smithsonian
Center for Astrophysics, report that a spectrum (range 370-750 nm)
of SN 2003ge (cf. IAUC 8154), obtained by P. Berlind on June 24.23
UT with the F. L. Whipple Observatory 1.5-m telescope (+ FAST
spectrograph), shows it to be a type-Ia supernova about two weeks
past maximum.

     G. Pojmanski, Warsaw University Astronomical Observatory,
reports that 'All Sky Automated Survey' images obtained at Las
Campanas show that V4745 Sgr brightened from V = 11.1 on June
22.108 UT to V = 10.1 on June 23.417.  This appears to be the third
secondary brightness maximum since Apr. 18; a 2.1-mag increase in V
occurred on May 31.

                      (C) Copyright 2003 CBAT
2003 June 24                   (8155)            Daniel W. E. Green

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