Spectroscopic observations of novae in 2018-Q3
Abstract
We present spectroscopic observations (R = 500 to 15000) of 4 novae during 2018, 3rd quarter. Nova Sct 2017: in nebular phase, shows quick and strong changes at a short time scale, noticeably high excitation lines such as He II or [Fe VII]. Nova Lup 2018: discovered on June, 3rd. Nova Sct 2018: discovered on June, 29th was identified as a nova by Umberto Sollecchia and Olivier Garde on June, 30 th (ATel#11802). The spectroscopic development is described using ATels#11802, 11826, 11859 written by Steve Shore for ARAS group. Nova Oph 2018c: By means of high cadency monitoring, the helium flash is precisely dated (2018-08-29) and an unexpected weakening of helium lines is detected on 2018-09-08.
- Publication:
-
Eruptive Stars Information Letter
- Pub Date:
- November 2018
- Bibcode:
- 2018ESIL...39....2T
- Keywords:
-
- Techniques: spectroscopic;
- Astronomical data bases;
- novae