Remarkable changes in the near-infrared spectrum of the nova-like variable V4332 Sgr

نویسندگان

  • Dipankar P.K. Banerjee
  • Olli Launila
چکیده

We report on recent near-IR observations of V4332 Sgr the nova-like variable that erupted in 1994. Its rapid, post-outburst evolution to a cool M type giant/supergiant, soon after its outburst, had showed that it was an unusual object differing from other eruptive variables like classical/symbiotic novae or born-again AGB stars. The present study of V4332 Sgr was motivated by the keen interest in the recent eruption of V838 Mon an object with a spectacular light-echo and which, along with V4332 Sgr, is believed to belong to a new class of objects (we propose they may be called “quasi-novae”). Our observations show new developments in the evolution of V4332 Sgr. The most striking feature is the detection of several molecular bands of AlO a rarely seen molecule

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تاریخ انتشار 2003