arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1504.01744astro-ph.SRastro-ph.GA
收藏

七个邻近星系中$\sim300,000$星的Spitzer点源星表

Spitzer Point Source Catalogs of $\sim300,000$ Stars in Seven Nearby Galaxies

Rubab Khan, C. S. Kochanek, K. Z. Stanek, G. Sonneborn

摘要:

给出了NGC $6822$,M $33$,NGC $300$,NGC $2403$,M $81$,NGC $0247$,NGC $7793$七个星系的Spitzer IRAC $3.6-8$ um和MIPS $24$ um点源星表。该目录包含总共$\sim300,000$源,并通过双波段选择在$3.6$ um和$4.5$ um都有$>3σ$检测的源创建。源列表在$m_{3.6}=m_{4.5}\simeq18$附近变得非常不完整。我们补充$3.6$ um和$4.5$ um通量与$5.8$ um,$8.0$ um和$24$ um通量或$3σ$上限使用PSF和孔径测光的组合。这个目录是一个资源,作为研究中红外瞬变和计划与詹姆斯韦伯太空望远镜观测存档。

英文摘要:

We present Spitzer IRAC $3.6-8$um and MIPS $24$um point-source catalogs for seven galaxies: NGC$6822$, M$33$, NGC$300$, NGC$2403$, M$81$, NGC$0247$, and NGC$7793$. The catalogs contain a total of $\sim300,000$ sources and were created by dual-band selection of sources with $>3σ$ detections at both $3.6$um and $4.5$um. The source lists become significantly incomplete near $m_{3.6}=m_{4.5}\simeq18$. We complement the $3.6$um and $4.5$um fluxes with $5.8$um, $8.0$um and $24$um fluxes or $3σ$ upper limits using a combination of PSF and aperture photometry. This catalog is a resource as an archive for studying mid-infrared transients and for planning observations with the James Webb Space Telescope.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑