논문 투고 하시는 분들을 위하여… 학회지(JASS) 논문 투고 샘플파일입니다. 최종 출판은 2단편집 형태이지만 투고 하실 때는 1단 편집 형태로 보내 주세요. 가능하면 MS워드를 사용하시면 좋지만 어려우시면 이전처럼 HWP, Tex 등으로 제출하셔도 됩니다. 논문의 언어는 한글, 영어 모두 가능합니다. 그러나 한글로 제출할 경우에도 제목, 저자명, 소속, 표 설명, 그림 설명, 참고문헌 등은 모두 영어로 기록해 주시기 바랍니다. 그림파일은 워드에 들어 있는 파일 외에 별도의 그림 파일을 보내 주세요. 크기가 너무 커서 안올려 질 경우 그림파일은 별도로 메일로 보내 주시기 바랍니다. ([email protected]) 감사합니다. 한국우주과학회 편집위원회 Properties of the Variation of the Infrared Emission of OH/IR Stars Mee-Ju Kim1, Yun-Deuk Jeong2, Pyung-Kil Min2† 1 Department of Astronomy and Space Science, Hankook University, Seoul 120-763, Korea Department of Astronomy and Space Science, Seoul University, Seoul 170-293, Korea 2 † Corresponding Author E-mail: [email protected] Tel: +82-2-2123-2300 Fax: +82-2-2123-2302 Received Nov 1, 2010 Revised Nov 21, 2010 Accepted Dec 3, 2010 Heading Title: Mee-Ju Kim et al. The M band Light Curves of OH/IR stars article type: Research Paper ABSTRACT To study properties of the pulsation in the infrared emission for long period variables, we have collected and analyzed the infrared observational data at M band for 12 OH/IR stars. We present the light curves using the data that cover about 30 years including …… Keywords: asymptotic giant branch and post-asymptotic giant branch, infrared: stars 1. INTRODUCTION Stars with low and intermediate mass evolve into the asymptotic giant branch (AGB) before the evolutionary stage of planetary nebulae. The OH/IR stars are generally believed to be the last evolutionary phase of an …. The Infrared Space Observatory (ISO, Kessler et al. 1996) with improved sensitivity and angular resolution had performed …. 2. SAMPLE STARS For this paper, we choose 12 OH/IR stars which have a wide range of pulsation periods (400 - 1,800 days). The sample stars are same as those used in paper II. We present the OH name of sample stars, the general catalogue of variable stars (GCVS) name, … 3. RESULTS AND DISCUSSION In Fig. 1, we plot the light curves for 12 OH/IR stars using the observation data (presented by symbols) at M band with the best fitting sinusoidal curve (presented by a solid line). The sinusoidal curve, which is a function of time (t), is in the form y0 + Asin (2π t / P + q), (1) where y0 is the mean-brightness, A and P are … We neglect the long-term trends caused by a secondary period within the time range of observation data. The data points that do not follow the general trend are not used for determination of the pulsation parameters. These unused data points are marked by parenthesis in Table 2 and the light curves (Fig. 1). In Table 3, we list the new pulsation …. …. OH maser observations by Herman & Habing (1985). The period of IK Tau from Hale et al. (1997) was based on variations in 11 μm flux. 4. CONCLUSIONS We have made the light curves at M band for 12 OH/IR stars. We have determined the pulsation parameters of the sample stars and compared them with previous results of the infrared and radio ….. ACKNOWLEDGMENTS This work was supported by the ….. REFERENCES Clarkson WI, Charles PA, Coe MJ, Laycock S, Tout MD, et al., Long-term properties of accretion discs in X-ray binaries - I. The variable third period in SMC X-1, MNRAS, 339, 447-454 (2003). http://dx.doi.org/10.1046/j.1365-8711.2003.06176.x Gruber DE, Rothschild RE, SMC X-1 variability observed from HEAO 1, ApJ, 283, 546-551 (1984). http://dx.doi.org/10.1086/162338 Huang NE, Shen Z, Long SR, Wu MC, Shih HH, et al., The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis, Proc. R. Soc. Lond. 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M band light curves of OH/IR stars. 3.5 3.0 AmplitudeM [mag] 2.5 2.0 1.5 OH 42.3-0.1 1.0 1.0 1.5 2.0 2.5 AmplitudeL [mag] Fig. 2. Amplitudes at L and M bands. 3.0 3.5 Lepine et al. 1995 ISO SWS01 ) 4.0 9000 10000 11000 Table 1. Sample stars. OH name GCVS 26.2-0.6 26.4-1.9 26.5+0.6 28.7-0.6 30.1-0.2 30.7+0.4 32.8-0.3 39.9+0.0 42.3-0.1 45.5+0.1 127.8+0.0 178.0-31.4 V0438 Sct V0440 Sct V0437 Sct V0439 Sct V1361 Aql V1360 Aql V1365 Aql V1367 Aql V1368 Aql V1369 Aql V669 Cas IK Tau l. (degree) 26.2092 26.4221 26.5434 28.7192 30.1369 30.7171 32.8271 39.9162 42.3081 45.4722 127.8147 177.9544 b. Dist. (degree) (kpc) 4.1 -00.5893 3.4 -01.9346 +00.6178 1.4 2.8 -00.5787 3.3 -00.2322 +00.4278 5.2 3.9 -00.3155 +00.0182 5.6 6.5 -00.1330 +00.0749 2.5 1.6 -00.0208 0.3 -31.4119 GCVS: general catalogue of variable stars. Table 2. New pulsation parameters. Period (day) This work Previous Radio 26.2-0.6 1,193±9.8 1330±50 1,181±13 26.4-1.9 493±4.8 540±20 652±26 26.5+0.6 1,564±9.6 1,630±100 1,566±16 28.7-0.6 641±6.3 640±10 627±17 30.1-0.2 923±8.5 970±40 853±21 30.7+0.4 1,158±54.2 1,140±30 1,039±27 32.8-0.3 1,729±15.5 1,750±130 1,536±10 39.9+0.0 771±7.1 770±20 823±45 42.3-0.1 1,723±24.9 1,650±150 1,945±83 45.5+0.1 721±5.8 720±20 760±31 127.8+0.0 1,506±13.8 1,537±18a) 1,994±130 IK Tau 466±0.8 470±72) 455.6±57 a) Suh & Kim (2002), b) Hale et al. (1997). Objects Amplitude (mag) <m> (mag) This work Previous 1.80±0.22 1.77 2.57±0.18 1.45±0.17 1.37 2.18±0.14 2.25±0.13 1.97 -0.36±0.09 2.00±0.23 1.30 1.67±0.18 1.55±0.14 1.52 2.10±0.10 2.55±0.27 1.61 2.80±0.20 2.90±0.20 2.68 2.70±0.15 2.00±0.27 1.49 3.02±0.19 1.05±0.17 0.72 4.44±0.13 1.50±0.19 1.45 3.12±0.13 2.00±0.18 2.00a) 0.74±0.30 1.15±0.08 -2.70±0.05
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