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IAUC 5958: GRS 1915+105; 1994F, 1994G, 1994H; 1994D; N Aql 1993

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                                                  Circular No. 5958
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


GRS 1915+105
    E. Gerard, Observatoire de Paris-Meudon; L. F. Rodriguez,
National Radio Astronomy Observatory and Universidad Nacional
Autonoma de Mexico; and I. F. Mirabel, Service d'Astrophysique,
Centre d'Etudes de Saclay, report:  "A new radio outburst was
detected from the hard x-transient in Aquila on Mar. 24 and 25.
The source was observed with the Nancay Radiotelescope and the Very
Large Array.  The Nancay radio flux was 1.5 and 1.4 Jy at 21 cm and
0.8 and 0.6 Jy at 9 cm, respectively, around Mar. 24.28 and 25.28
UT.  Using the VLA around Mar. 24.58, fluxes of 1.10 Jy at 6 cm,
0.81 Jy at 3.6 cm, and 0.55 Jy at 2 cm were measured.  This
outburst is comparable in intensity to that recorded by Rodriguez
and Mirabel in early Dec. 1993 (IAUC 5900).  No evidence for linear
polarization is found in the radio emission at 21 and 9 cm.  The
source has an infrared counterpart (Mirabel et al. 1994, A.Ap. 282,
L17), and multiwavelength observations are strongly encouraged to
follow up the outburst and help understand the nature of GRS
1915+105".


SUPERNOVAE 1994F, 1994G, 1994H
     Corrigenda to IAUC 5956:  line 6, add  H. Pack and M. Cronin,
Mt. Herman School, Northfield, MA; line 13, for  R = 22.0  read  R
= 22; line 14, for  1".1 west  read  2".7 west; line 17, for  1993
Dec. 20  read  1993 Dec. 21; line 18, for  J. B. Oke  read  J. B.
Oke, J. Cohen, and T. Bida; line 28, for  M. Turrato  read  M.
Turatto; line 30, for  redshift of about 0.32  read  redshift of
0.373 [the cluster being Abell 0370].


SUPERNOVA 1994D IN NGC 4526
     H. Mikuz, Ljubljana, Slovenia, reports the following
(comparison stars from Kilkenny and Malcolm 1984, MNRAS 209,
169):  Mar. 19.15 UT, V = 11.86 +/- 0.02, B-V = +0.12 +/-
 0.03, V-R = +0.13 +/- 0.03, V-I = -0.10 +/- 0.04.


NOVA AQUILAE 1993
     Further photometry by Mikuz (cf. IAUC 5794, 5802, 5907):  Mar.
19.17 UT, V = 13.43 +/- 0.02, B-V = +0.90 +/- 0.03.


1994 March 25                  (5958)            Daniel W. E. Green

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