Near-infrared studies of nova V5584 Sgr in the pre-maximum and early decline phase

作     者：Ashish Raj D.P.K.Banerjee N.M.Ashok Sang Chul KIM 

作者机构：Korea Astronomy and Space Science Institute (KASI) Physical Research Laboratory Korea University of Science and Technology (UST) 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2015年第15卷第7期

页      面：993-1004页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：funded by the Department of Space  Government of India 

主　　题：line: identification    techniques: spectroscopic    stars: individual(V5584 Sgr)    novae cataclysmic variables 

摘      要：We present near-infrared spectroscopic and photometric observations of nova V5584 Sgr taken during the first 12 d following its discovery on Oct. 26.439 UT2009. The evolution of the spectra is shown from the initial P Cygni phase to an emission line phase. The prominent carbon lines seen in the JHK spectra closely match those observed in an Fe II class nova outburst. The spectra show first-overtone CO bands in emission between 2.29-2.40 μm. By examining WISE and other publicly available data, we show that the nova underwent a pronounced dust formation phase between February- April 2010.