OPTICAL MORPHOLOGY, INCLINATION, AND EXPANSION VELOCITY OF THE EJECTED SHELL OF NOVA MONOCEROTIS 2012
OPTICAL MORPHOLOGY, INCLINATION, AND EXPANSION VELOCITY OF THE EJECTED SHELL OF NOVA MONOCEROTIS 2012
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2012年麒麟新星弹射壳的光学形态、倾角和膨胀速度
DOI：
10.1088/0004-637x/768/1/49
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
P. Valisa
中科院分区：
文献类型：
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作者：
V. Ribeiro;U. Munari;P. Valisa
对 2012 年 He/N 新星麒麟座爆发的喷射壳的形态进行了详细研究。将合成线轮廓光谱与 [O iii] 4959、5007 Å 发射线轮廓进行比较，以找到弹出壳的最佳拟合形态、倾斜角和最大膨胀速度。最简单的形态被发现是双极结构，倾角为82°±6°，最大膨胀速度为2400 km s−1（爆发后第130天）。对于具有主序星的系统来说，如此高度的整形是出乎意料的（从系统颜色中可以看出）。成形的程度可以与分辨光学成像分开。此外，这些结果可以通过射电成像得到证实，预计射电成像将遵循与光带相同的爆发的总体特征，并且这里暗示的高倾角可以用 7.1 小时的周期来证实，该周期被认为是由吸积盘边缘的扩展发射的偏食引起的。
The morphology of the ejected shell of the He/N Nova Monocerotis 2012 outburst was studied in detail. Synthetic line profile spectra were compared to the [O iii] 4959, 5007 Å emission line profiles in order to find the best-fit morphology, an inclination angle, and a maximum expansion velocity of the ejected shell. The simplest morphology was found to be that of a bipolar structure with an inclination angle of 82°± 6° and a maximum expansion velocity of 2400 km s−1 (at day 130 after outburst). Such a high degree of shaping is unexpected for a system with a main-sequence star (as suspected from the systems colors). The degree of shaping may be disentangled with resolved optical imaging. Furthermore, these results may be confirmed with radio imaging which is expected to follow the same gross features of the outburst as the optical band and the high inclination implied here can be corroborated with a 7.1 hr period which has been suggested to arise from partial eclipses of extended emission by an accretion disk rim.