Circular No. 4626 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Postal Address: Central Bureau for Astronomical Telegrams Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. TWX 710-320-6842 ASTROGRAM CAM Telephone 617-495-7244/7440/7444 MARSDEN or GREEN@CFA.BITNET MARSDEN or GREEN@CFAPS2.SPAN SUPERNOVA 1988Q IN ANONYMOUS GALAXY C. M. Gaskell, University of Michigan, writes: "Spectra taken with the McGraw-Hill Observatory 2.4-m telescope on July 13.5 UT show that SN 1988Q (cf. IAUC 4623, 4625) is a type-II supernova, probably 3 or 4 weeks past maximum light. The redshift is 6600 km/s, the FWHM of H-alpha is 9400 km/s, and the wings extend to +/- 11 000 km/s. The continuum magnitude was 19.1 at 550 nm." 3C 279 F. Makino and the Ginga Team, Institute of Space and Astronautical Science, telex: "Ginga observed the quasar 3C 279 on July 6. The x-ray energy flux was 12.7 +/- 0.2 erg s-1 cm-2 in the energy range 2-30 keV with photon index of 1.57 +/- 0.05. The energy flux and index on 1987 June 24 were 2.0 +/- 0.2 erg s-1 cm-2 and 1.7 +/- 0.1, respectively. The flux errors are due to the confusion limit." NOTICE TO SUBSCRIBERS In response to various requests, arrangements have now been made to e-mail (at no extra charge) the Computer Service (CS) versions of these Circulars to CS subscribers who have SPAN or BITNET addresses (or other e-mail addresses that can appropriately be reached via SPAN or BITNET). Each CS account is eligible to receive a single e-mail copy of each Circular, but we cannot arrange to retransmit issues that are not delivered: to get missing issues subscribers will need to log in to the CS in the usual way (or await delivery of the printed copy). During the past week we have sent experimental e-mail copies of the Circulars to those CS subscribers whose e-mail addresses we had on file. If other CS subscribers wish to avail themselves of this new service (or if the e-mail addresses we have selected need to be changed), they should request this by e-mail toMARSDEN@CFA.BITNET
orMARSDEN@CFAPS2.SPAN
. Non-CS subscribers who wish now to subscribe to the CS are advised that the monthly charge for the CS is $7.50 at the regular (invoiced) rate or $4.50 at the special (non-invoiced) rate; this charge is in addition to that (also $7.50 regular rate, $4.50 special rate) for the printed Circulars, although subscribers may opt to receive the printed MPCs instead (monthly charge $15.00 regular rate, $9.00 special rate). 1988 July 14 (4626) Daniel W. E. Green
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