From owner-vsnet-alert@kusastro.kyoto-u.ac.jp Tue Dec 28 01:34 JST 1999 To: isn_chat@supernovae.net, vsnet-alert@kusastro.kyoto-u.ac.jp Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Date: Tue, 28 Dec 1999 01:05:25 +0900 (JST) From: AYANI Kazuya <ayani@bao.go.jp> X-Dispatcher: imput version 990905(IM130) X-Distribute: distribute [version 2.1 (Alpha) patchlevel=24] Subject: [vsnet-alert 3862] Spectroscopy of SN 1999gq Content-Type: Text/Plain; charset=us-ascii Content-Length: 834 Spectroscopy of SN 1999gq Dear colleagues, I have posted the following report to CBAT. --------- SUPERNOVA 1999gq IN NGC 4523 K. Ayani, Bisei Astronomical Observatory (BAO), and H. Yamaoka, Kyushu University, report: "We obtained a wide-band spectrum (range 400-800 nm; resolution 0.6 nm) of SN 1999gq with the BAO 1.01-m reflecter on Dec. 26.84 UT. It shows that the supernova is of type-II in the early phase, with a broad P-Cyg H-alpha profile and H-beta absorption on a blue continuum. Adopting the NED recession velocity for NGC 4523 (260 km/s), the expansion velocity of the supernova, derived from H-alpha absorption minimum, is 7800 km/s. Other broad absorption features are seen at 580, 559, 510, 495 nm on the rest frame of the host galaxy." ---------- Best regards, Kazuya Ayani Bisei Astronomical Observatory