NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-19 T23:06:54 PDT
Help | Comment | NED Home

For refcode 1995IAUC.6135A...1B:
Retrieve 2 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Reproduced by permission
1995IAUC.6135A...1B Circular No. 6135 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION SUPERNOVA 1995D IN NGC 2962 S. Benetti, C. Mendes de Oliveira, European Southern Observa- tory (ESO); and A. Manchado, Instituto de Astrofisica de Canarias, report that inspection of a fully-reduced CCD spectrogram (range 350-100 nm, resolution 1 nm) obtained on Feb. 13.18 UT with ESO 1.5-m telescope (+ Boller & Chivens spectrograph), confirms that SN 1995D is a type-Ia supernova, about 1 week before maximum light. The spectrum is dominated by P-Cyg lines of intermediate-mass elements superimposed on a very blue continuum. Visible lines include Ca II (H and K; infrared triplet); Si II (635.5 nm), S II (546.8, 561.2, 565.4 nm) and faint O I (777.3 nm). Strong lines of Si III (456.0, 574.0 nm) are also present, as in spectra of similar phase of SN 1990N. Si II (597.2 nm) is unusual weak, if present at all. The expansion velocities deduced from the minimum of Si II 635.5-nm and Ca II H and K lines, corrected by the redshift (0.00655) of the parent galaxy, are about 10900 and 18200 km/s, respectively. 1995 February 15 (6135) Daniel W. E. Green
Retrieve 2 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home