THE MID-INFRARED PERIOD-LUMINOSITY RELATIONS FOR THE SMALL MAGELLANIC CLOUD CEPHEIDS DERIVED FROM SPITZER ARCHIVAL DATA

NCU Institutional Repository > 理學院 > 天文研究所 > 期刊論文 > Item 987654321/50799

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/50799

题名:	THE MID-INFRARED PERIOD-LUMINOSITY RELATIONS FOR THE SMALL MAGELLANIC CLOUD CEPHEIDS DERIVED FROM SPITZER ARCHIVAL DATA
作者:	Ngeow,CC;Kanbur,SM
贡献者:	天文研究所
关键词:	GRAVITATIONAL LENSING EXPERIMENT.;FUNDAMENTAL-MODE CEPHEIDS;AMPLITUDE-COLOR RELATIONS;OGLE-III CATALOG;CLASSICAL CEPHEIDS;HUBBLE CONSTANT;SPACE-TELESCOPE;DARK ENERGY;LEAVITT LAW;LMC DATA
日期:	2010
上传时间:	2012-03-27 18:10:22 (UTC+8)
出版者:	國立中央大學
摘要:	In this paper, we derive the Spitzer IRAC band period luminosity (P-L) relations for the Small Magellanic Cloud (SMC) Cepheids, by matching the Spitzer archival SAGE-SMC data with the OGLE-III SMC Cepheids. We find that the 3.6 mu m and 4.5 mu m band P L relations can be better described using two P-L relations with a break period at log(P) = 0.4: this is consistent with similar results at optical wavelengths for SMC P-L relations. The 5.8 mu m and 8.0 mu m band P-L relations do not extend to sufficiently short periods to enable a similar detection of a slope change at log(P) = 0.4. The slopes of the SMC P-L relations, for log(P) > 0.4, are consistent with their Large Magellanic Cloud counterparts that were derived from a similar data set. They are also in agreement with those obtained from a small sample of Galactic Cepheids with parallax measurements.
關聯:	ASTROPHYSICAL JOURNAL
显示于类别:	[天文研究所] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	332	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing