Central Bureau for Astronomical Telegrams
IAUC 4928: 1989e1; NEW EXTRAGALACTIC OH DETECTIONS; N Sct 1989
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Circular No. 4928
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 or GREEN@CFA.BITNET MARSDEN or GREEN@CFAPS2.SPAN
COMET GEORGE (1989e1)
The following additional precise positions have been reported:
1989 UT R.A. (1950) Decl. m1 Observer
Dec. 20.39410 19 56 40.43 +25 45 09.1 11.0 Hayakawa
21.06597 19 57 55.46 +25 49 48.9 11.5 Skiff
21.09375 19 57 58.49 +25 50 00.1 "
S. Hayakawa (YGCO Nagano Station). 0.25-m f/4.0 reflector. Communicated
by T. Kobayashi.
B. Skiff (Lowell Observatory, Anderson Mesa Station). Communicated by
E. Bowell.
Visual magnitude estimate by R. Keen, Mt. Thorodin, CO:
Dec. 20.08 UT, 9.8 (0.15-m reflector).
NEW EXTRAGALACTIC OH DETECTIONS
L. Bottinelli, L. Gouguenheim, A. M. Le Squeren, Observatoire
de Paris, Section de Meudon; M. Dennefeld, Institut d'Astrophysique
de Paris; J. M. Martin, European Southern Observatory; and G.
Paturel, Observatoire de Lyon, report: "Four new OH megamasers and
two extragalactic OH absorptions have been discovered with the
Nancay radiotelescope in the following IRAS sources: 01364-1042,
08071+0509, 15179+3956, 20491+1846 (emission); and 05368+4940 and
22359-2606 (absorption). Their far-infrared luminosities are 60,
57, 41, 13, 7.6, and 11 x 10E10 solar units, respectively. The
OH 1667-MHz isotropic luminosities of the 4 megamasers are 105,
155, 70, and 12 solar units, respectively. IRAS 01364-1042 exhibits
two components in the 1667-MHz OH main line with a velocity
separation of about 200 km/s. The intensity ratio of the two
absorption lines at 1667 and 1665 MHz in the last two galaxies is
compatible with thermal equilibrium."
NOVA SCUTI 1989
Visual magnitude estimates (cf. IAUC 4910): Nov. 21.73, 11.5
(O. Skjaeraasen, Oslo, Norway); 27.77, 11.8 (M. Verdenet,
Bourbon-Lancy, France); 29.72, 11.9 (A. Boattini, Piazzano, Italy);
Dec. 3.72, 11.7 (B. H. Granslo, Blindern, Norway); 6.71, 11.7 (H.
Dahle, Oslo, Norway); 11.70, 12.1 (O. Midtskogen, Tranby, Norway).
1989 December 21 (4928) Daniel W. E. Green
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