From: Tony Spadafora (ALSpadafora@lbl.gov)
Date: Tue Oct 15 2002 - 18:06:47 PDT
SCP collaborators:
The three circulars from last spring's campaign have now all been
released - Thanks to Naoki, Julien, and Rob! Table below correlates IAU
with SCP names. Circulars are below.
SN 2002 UT R.A. (2000.0) Decl. i' z Type IAUC
S02-049 2002fc Apr. 9.4 14 00 23.29 + 5 45 41.9 24.2 0.88 Ia 7971
S02-000 2002fd 9.5 14 03 54.08 + 4 59 49.0 23.4 0.278 Ia 7971
S02-002 2002fe 9.5 14 04 18.16 + 5 19 25.6 24.7 1.086 Ia 7971
S02-032 2002ff 9.6 14 03 39.82 + 5 46 50.6 24.0 1.1 Ia? 7971
S02-075 2002fg May 7.5 13 24 25.92 +27 44 33.9 23.7 0.79 Ia? 7971
S02-064 2002fh May 9.3 13 25 46.62 +27 34 21.1 22.4 0.33 Ic? 7971
SN 2002 UT R.A. (2000.0) Decl. I z Type IAUC
C02-000 2002fl Mar. 16 14 01 52.33 + 4 39 23.2 21.9 0.26 Ia 7977
C02-028 2002fm 20 14 00 29.75 + 4 46 50.1 22.5 0.448 ? 7977
C02-010 2002fn Apr. 12 14 00 07.95 + 4 54 45.4 24.1 0.677 I 7977
C02-015 2002fo 12 14 01 29.83 + 5 14 20.7 24.7 ? ? 7977
C02-030 2002fp 12 14 02 18.40 + 4 47 05.9 24.0 0.352 ? 7977
C02-036 2002fq 16 14 00 51.20 + 4 33 26.2 22.7 ? ? 7977
C02-016 2002fr 17 14 00 46.40 + 4 33 41.4 22.4 0.31 I? 7977
SN 2002 UT R.A. (2000.0) Decl. Mag. z Type IAUC
T02-015 2002gi May 7 13 57 12.3 + 4 33 17 24.1 I 0.912 Ia 7993
T02-028 2002gj 7 15 36 25.5 + 9 28 18 22.9 R 0.44 I 7993
T02-029 2002gk 7 15 37 07.5 + 9 36 19 21.3 R 0.21 Ia 7993
T02-030 2002gl 7 15 43 24.4 + 7 53 58 23.3 R 0.511 Ia 7993
T02-037 2002gm 8 15 46 57.0 + 8 12 37 22.3 R 0.49 Ia 7993
Subject: IAUC 7971: Poss. N IN Sgr; 2002fc, 2002fd, 2002fe, 2002ff,
2002fg, 2002fh
Resent-Date: Mon, 16 Sep 2002 11:03:13 -0700 (PDT)
Resent-From: iaucirc@lbl.gov
Date: Mon, 16 Sep 2002 14:03:08 -0400 (EDT)
From: IAUC mailing list <quai@cfa.harvard.edu>
To: iaucirc@lbl.gov
Circular No. 7971
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138,
U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)
POSSIBLE NOVA IN SAGITTARIUS
W. Liller, Vina del Mar, Chile, reports his discovery of a
possible nova (mag approximately 8.5) on three Technical Pan films
taken with an 80-mm f/1.4 camera lens (+ orange filter) on Sept.
15.110-15.124 UT. A CCD image by Liller taken on Sept. 16.007
yields broadband-V mag 8.13 and the following position: R.A. =
18h02m22s.07 +/- 0s.15, Decl. = -25o20'30".4 +/- 1".5 (equinox
2000.0); nothing appears at this location to mag 11.5 on two
photographs taken on Sept. 11.12. Visual magnitude estimates (some
forwarded by T. Kato, University of Kyoto, and E. Waagen, AAVSO):
Sept. 16.082, 8.0 (B. King, Duluth, MN); 16.177, 8.1 (C. Puig,
Santa Clara, CA); 16.303, 8.0 (J. Bedient, Honolulu, HI); 16.391,
7.9 (M. Linnolt, Honolulu, HI).
SUPERNOVAE 2002fc, 2002fd, 2002fe, 2002ff, 2002fg, 2002fh
N. Yasuda, National Astronomical Observatory of Japan, on
behalf of the Supernova Cosmology Project (cf. IAUC 7763 and 7764,
plus V. Prasad, G. Sainton, E. Smith, and A. Spadafora) and the
Subaru high-redshift supernova search group (M. Doi, K. Nariai, M.
Watanabe, Y. Urata, Y. Komiyama, N. Kashikawa, T. Yamada, M.
Ouchi, T. Murayama, K. Shimasaku, H. Furusawa), reports the
discovery of six supernovae found with the Subaru telescope (+
prime-focus Suprime-Cam). Nothing was visible at the respective
positions to limiting magnitude i' about 26.0 on images taken on
Apr. 9 (SN 2002fh), 12 (SN 2002fg), and Mar. 19 (the rest).
SN 2002 UT R.A. (2000.0) Decl. i' z Type
2002fc Apr. 9.4 14 00 23.29 + 5 45 41.9 24.2 0.88 Ia
2002fd 9.5 14 03 54.08 + 4 59 49.0 23.4 0.278 Ia
2002fe 9.5 14 04 18.16 + 5 19 25.6 24.7 1.086 Ia
2002ff 9.6 14 03 39.82 + 5 46 50.6 24.0 1.1 Ia?
2002fg May 7.5 13 24 25.92 +27 44 33.9 23.7 0.79 Ia?
2002fh May 9.3 13 25 46.62 +27 34 21.1 22.4 0.33 Ic?
The supernova spectra were obtained at the Very Large Telescope on
Apr. 11 and June 5; at the Gemini telescope on Apr. 16, May 11, and
June 5; and at the Subaru telescope on Apr. 16. The redshifts were
determined from host-galaxy emission and absorption lines, and all
the supernovae were found to be within 2" of their host-galaxies'
centers. Photometry was also obtained with the Hubble Space
Telescope during Apr. 23-July 3 for SNe 2002fc, 2002fe, 2002ff, and
2002fg.
(C) Copyright 2002 CBAT
2002 September 16 (7971) Daniel W. E. Green
Subject: IAUC 7977: 2002fl, 2002fm, 2002fn, 2002fo, 2002fp, 2002fq, 2002fr
Resent-Date: Wed, 25 Sep 2002 11:41:09 -0700 (PDT)
Resent-From: iaucirc@lbl.gov
Date: Wed, 25 Sep 2002 14:41:04 -0400 (EDT)
From: IAUC mailing list <quai@cfa.harvard.edu>
To: iaucirc@lbl.gov
Circular No. 7977
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138,
U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)
SUPERNOVAE 2002fl, 2002fm, 2002fn, 2002fo, 2002fp, 2002fq, 2002fr
Further to IAUC 7971, J. Raux, Laboratoire de Physique
Nucleaire et de Hautes Energies, University of Paris VI, reports
the discovery of seven apparent supernovae by the Supernova
Cosmology Project. The supernovae were found with the Canada-
France-Hawaii Telescope (CFHT) during a 'rolling search' spanning
Mar. 16-May 20, with reference images having been obtained at CFHT
during Mar.-Apr. 2001 (limiting mag 25.6, S/N = 5). Each field was
observed approximately every third night (except for a few weather
gaps), making it possible to construct lightcurves with at least
seven nights' data for each supernova. Spectral types and
redshifts (given to 0.001 for host-galaxy redshifts, to 0.01 for
supernovae redshifts) were obtained using the following telescopes
(and instruments) listed: Keck (+ ESI), 2002fl; Very Large
Telescope (VLT) UT1 Antu (+ FORS1), 2002fp; VLT UT2 Kuyen (+
FORS2), 2002fm and 2002fr; Gemini (+ GMOS), 2002fn. Objects
without spectroscopy were identified as supernovae using their
lightcurves (cf. Dahlen and Goobar 2002, PASP 114, 284); these
lightcurves exhibited clear brightening over about 2 weeks for each
object, and each showed a 'kink' in the fading portion of the curve
that is characteristic of type-Ia supernovae in the I band. Some
two dozen active galactic nuclei were also observed in these same
fields, but they were all within 0".01 of their galaxy cores, and
they exhibited sudden brightening/fading in their lightcurves. SN
2002fl was 4".0 from its galaxy's core, and SN 2002fo was 3".4 from
the center of its apparent host galaxy. SN 2002fn was only 0".01
from its galaxy's center. The other supernovae were in the range
0".3-0".6 from their host galaxies' centers.
SN 2002 UT R.A. (2000.0) Decl. I z Type
2002fl Mar. 16 14 01 52.33 + 4 39 23.2 21.9 0.26 Ia
2002fm 20 14 00 29.75 + 4 46 50.1 22.5 0.448 ?
2002fn Apr. 12 14 00 07.95 + 4 54 45.4 24.1 0.677 I
2002fo 12 14 01 29.83 + 5 14 20.7 24.7 ? ?
2002fp 12 14 02 18.40 + 4 47 05.9 24.0 0.352 ?
2002fq 16 14 00 51.20 + 4 33 26.2 22.7 ? ?
2002fr 17 14 00 46.40 + 4 33 41.4 22.4 0.31 I?
(C) Copyright 2002 CBAT
2002 September 25 (7977) Daniel W. E. Green
Subject: IAUC 7993: 2002gi, 2002gj, 2002gk, 2002gl, 2002gm; SAX J1808.4-3658
Resent-Date: Tue, 15 Oct 2002 14:38:51 -0700 (PDT)
Resent-From: iaucirc@lbl.gov
Date: Tue, 15 Oct 2002 17:38:46 -0400 (EDT)
From: IAUC mailing list <quai@cfa.harvard.edu>
To: iaucirc@lbl.gov
Circular No. 7993
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138,
U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)
SUPERNOVAE 2002gi, 2002gj, 2002gk, 2002gl, 2002gm
Further to IAUC} 7977, on behalf of the Supernova Cosmology
Project, R. Knop, Vanderbilt University, reports the discovery of
five supernovae at the Cerro Tololo 4-m telescope (+ Mosaic camera)
during May 6-8, via subtraction of reference images taken Apr.
15-17 (when the 3-sigma limit on each magnitude was R = 24.0,
except limiting mag I = 24.6 for 2002gi). Spectroscopy and
redshifts (given to 0.001 for host galaxies, to 0.01 for
supernovae) were obtained during May 8-15 with Gemini North (+
GMOS) on Mauna Kea (2002gm) and with the Very Large Telescope (+
FORS1, FORS2) at Paranal (remaining objects). Photometry of 2002gi
was obtained with the Hubble Space Telescope (+ ACS); the other
supernovae were followed in R and I bands with the WIYN 3.5-m
telescope at Kitt Peak and the 3.5-m Telescopio Nazionale Galileo
and 4.2-m William Herschel Telescope at La Palma. Each supernova
is within 1" of its host galaxy's center, except for 2002gj (1".5
distant).
SN 2002 UT R.A. (2000.0) Decl. Mag. z Type
2002gi May 7 13 57 12.3 + 4 33 17 24.1 I 0.912 Ia
2002gj 7 15 36 25.5 + 9 28 18 22.9 R 0.44 I
2002gk 7 15 37 07.5 + 9 36 19 21.3 R 0.21 Ia
2002gl 7 15 43 24.4 + 7 53 58 23.3 R 0.511 Ia
2002gm 8 15 46 57.0 + 8 12 37 22.3 R 0.49 Ia
SAX J1808.4-3658
C. B. Markwardt, University of Maryland and Goddard Space
Flight Center; J. M. Miller, Harvard-Smithsonian Center for
Astrophysics; and R. Wijnands, University of St. Andrews, report a
new outburst of the millisecond accreting pulsar SAX J1808.4-3658
(cf. IAUC} 7369). In RXTE PCA scans of the Galactic center on Oct.
13.279 UT, an x-ray source whose position is consistent with SAX
J1808.4-3658 was detected with a flux of 65 mCrab (2-10 keV). On
Oct. 9.5, the PCA flux was < 0.5 mCrab. Two minutes of pointed
data detected x-ray pulsations at the frequency 400.953 +/- 0.008
Hz (barycentered). This frequency is consistent with the known
pulsar spin frequency and orbital Doppler modulation. The RXTE ASM
instrument detected the source on Oct. 14.30 and 14.37 at fluxes of
105 and 76 mCrab, respectively. In its 1998 outburst, the source
also exhibited fast radio and optical transients, so
multiwavelength observing is encouraged.
(C) Copyright 2002 CBAT
2002 October 15 (7993) Daniel W. E. Green
-- Tony Spadafora ALSpadafora@lbl.gov Physics Division Tel: (510) 495-2316 Lawrence Berkeley National Lab FAX: (510) 486-6738 1 Cyclotron Road BLDG 50R5032 Berkeley, CA 94720-8160
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