Optical spectroscopy of nova LMC 1988 No 2 during its early decline stage.
Abstract
This paper presents the results obtained from optical spectroscopy of Nova LMC 1988 No. 2 made at the SAAO. It was a very fast nova (t_2_=5d) of large amplitude ({DELTA}m>11.2 mag) and the visual maximum reached m_V_=10.3 on 1988 October 13.75 UT. A spectrogram taken 1.34d after the maximum showed strong Balmer, He I and Fe II lines with P Cyg profiles. The broad (FWZI>4000 km s^-1^) emission features extend to +3000 km s^-1^. Two principle absorption systems at ~-1700 km s^-1^ and ~-2500 km s^-1^ and higher velocity diffuse-enhanced absorption systems extending to -4000 km s^-1^ were seen. By 1988 December 2 (50d after the maximum) the nova had developed into the early nebular phase and showed very strong [Ne III] emissions. The characteristics of the nova closely resemble those of V1500 Cyg and V1370 Aql.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- December 1989
- DOI:
- 10.1093/mnras/241.4.827
- Bibcode:
- 1989MNRAS.241..827S
- Keywords:
-
- Magellanic Clouds;
- Novae;
- Stellar Spectra;
- Visible Spectrum;
- Astronomical Spectroscopy;
- Light Curve;
- Line Spectra;
- Radial Velocity;
- Astrophysics