SIMBAD references

2008CBET.1359....1B - Central Bureau Electronic Telegrams, 1359, 1 (2008/April-0)

Supernova 2008bx in MCG +07-31-4.

BENTZ M.C., WALSH J.L., SILVERMAN J.M., STEELE T.N., FILIPPENKO A.V., BLONDIN S. and BERLIND P.

Abstract (from CDS):

M. C. Bentz and J. L. Walsh, University of California, Irvine; and J. M. Silverman, T. N. Steele, and A. V. Filippenko, University of California, Berkeley, report that inspection of CCD spectra (range 330-1050 nm), obtained on Apr. 28 UT with the Shane 3-m telescope at Lick Observatory, reveals that 2008bx (CBET 1348) is a type-II supernova. Several weak, broad spectral features are present on top of a relatively featureless continuum and appear mostly in absorption. Removing a host-galaxy recession velocity of 2800 km/s (from a narrow emission lines), the minimum of the H-beta absorption is blueshifted by about 10000 km/s. S. Blondin, Harvard-Smithsonian Center for Astrophysics (CfA), on behalf of the CfA Supernova Group, reports that a spectrum (range 350-740 nm) of 2008bx, obtained on Apr. 29.32 UT by P. Berlind with the F. L. Whipple Observatory 1.5-m telescope (+ FAST), shows it to be a young type-II supernova. The spectrum consists of a blue continuum with shallow P-Cyg profiles of the Balmer series and He I (587.6 nm). Adopting a recession velocity of 2518 km/s for the host galaxy (from de Vaucouleurs et al. 1991, Third Ref. Cat. of Bright Galaxies), the maximum absorption in the H_beta line (rest 486.1 nm) is blueshifted by roughly 9000 km/s.

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