CONCURRENT FORMATION of CARBON and SILICATE DUST in NOVA V1280 SCO

Itsuki Sakon, Shigeyuki Sako, Takashi Onaka, Takaya Nozawa, Yuki Kimura, Takuya Fujiyoshi, Takashi Shimonishi, Fumihiko Usui, Hidenori Takahashi, Ryou Ohsawa, Akira Arai, Makoto Uemura, Takahiro Nagayama, Bon Chul Koo, Takashi Kozasa

研究成果: Article査読

20 被引用数 (Scopus)

抄録

We present infrared multi-epoch observations of the dust-forming nova V1280 Sco over ∼2000 days from the outburst. The temporal evolution of the infrared spectral energy distributions at 1272, 1616, and 1947 days can be explained by the emissions produced by amorphous carbon dust of mass (6.6-8.7) 10-8 Mo with a representative grain size of 0.01 μm and astronomical silicate dust of mass (3.4-4.3) 10-7 Mo with a representative grain size of 0.3-0.5 μm. Both of these dust species travel farther away from the white dwarf without apparent mass evolution throughout those later epochs. The dust formation scenario around V1280 Sco suggested from our analyses is that the amorphous carbon dust is formed in the nova ejecta followed by the formation of silicate dust either in the expanding nova ejecta or as a result of the interaction between the nova wind and the circumstellar medium.

本文言語English
論文番号145
ジャーナルAstrophysical Journal
817
2
DOI
出版ステータスPublished - 2016 2月 1

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 宇宙惑星科学

フィンガープリント

「CONCURRENT FORMATION of CARBON and SILICATE DUST in NOVA V1280 SCO」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル