Photometric variability of five candidates for protoplanetary nebulae

被引：14
作者：
Arkhipova, V. P. [1 ]
Ikonnikova, N. P. [1 ]
Komissarova, G. V. [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 | 2011年 / 37卷 / 09期
关键词：
post-AGB supergiants; photometric observations; variable stars; protoplanetary nebulae; POST-AGB STARS; POINT-SOURCE CATALOG; PLANETARY-NEBULAE; INFRARED EXCESS; IRAS 22223+4327; LONG-TERM; OBJECTS; EMISSION; COLORS; MICRON;
D O I：
10.1134/S0320010811090014
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We analyze long-term UBV observations and ASAS-3 photometry for five candidates for protoplanetary nebulae-F and G supergiants with infrared excesses at highG alactic latitudes-V340 Ser, IRAS 05113+1347, V552 Pup, V448 Lac, and RV Col. These stars exhibit quasi-periodic multifrequency light variations caused by pulsations with characteristic time scales from 83 to 139 days, depending on the stellar temperature. Cooler stars undergo variations with larger amplitudes and periods. The variations at close frequencies with a period ratio of 1.03-1.09 are responsible for the amplitude modulation revealed for most program stars.
引用
收藏
页码：635 / 648
页数：14
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  • [1] [Anonymous], AN
  • [2] [Anonymous], IAU S
  • [3] Photometric variability and evolutionary status of the supergiant with an infrared excess HD 179821=V1427 aquilae
    Arkhipova, V. P.
    Esipov, V. F.
    Ikonnikova, N. P.
    Komissarova, G. V.
    Tatarnikov, A. M.
    Yudin, B. F.
    [J]. ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS, 2009, 35 (11): : 764 - 779
  • [4] The candidate protoplanetary object IRAS 22223+4327 is a pulsating variable star
    Arkhipova, VP
    Noskova, RI
    Ikonnikova, NP
    Komissarova, GV
    [J]. ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS, 2003, 29 (07): : 480 - 485
  • [5] ARKHIPOVA VP, 2009, VARIABLE STARS
  • [6] Parameters of the local warp of the stellar-gaseous galactic disk from the kinematics of Tycho-2 nearby red giant clump stars
    Bobylev, V. V.
    [J]. ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS, 2010, 36 (09): : 634 - 644
  • [7] BOGAERT E, 1994, THESIS K U LEUVEN
  • [8] Color transformations for the 2MASS Second Incremental Data Release
    Carpenter, JM
    [J]. ASTRONOMICAL JOURNAL, 2001, 121 (05) : 2851 - 2871
  • [9] Cutri R. M., 2003, CDS ADC COLLECTION E, P2246
  • [10] Keplerian discs around post-AGB stars: a common phenomenon?
    De Ruyter, S
    Van Winckel, H
    Maas, T
    Evans, TL
    Waters, LBFM
    Dejonghe, H
    [J]. ASTRONOMY & ASTROPHYSICS, 2006, 448 (02) : 641 - U100
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