Photometric variability of the protoplanetary nebula LSIV-12°111

被引：13

作者：

Arkhipova, VP ^{[1
]}

Ikonnikova, NP ^{[1
]}

Noskova, RI ^{[1
]}

Komissarova, GV ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119991, Russia

来源：

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2002年 / 28卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

protoplanetary objects; photometric observations; evolutionary status;

D O I：

10.1134/1.1467261

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present our photometric observations of an early B supergiant with an infrared excess, the protoplanetary object LSIV-12degrees111, and the previously suspected variable star NSV 24971. We confirm its photometric variability. During two observing seasons (2000-2001), the star exhibited rapid irregular light variations with amplitudes DeltaV similar to 0.(m)3, DeltaB similar to 0.(m)3, and DeltaU similar to 0.(m)4 and a time scale of similar to1(d). There is no correlation between the colors and magnitudes of the star. The variability patterns of LSIV- 12degrees111 and two other hot post-AGB stars, V886 Her and V 1853 Cyg, are shown to be similar. (C) 2002 MAIK ''Nauka/Interperiodica''.

引用

页码：257 / 260

页数：4

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