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arXiv 0812.0760astro-ph
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超亮红外星系IRAS 23365+3604和IRAS 07251-0248的EVN观测

EVN observations of the Ultra Luminous Infrared Galaxies IRAS 23365+3604 and IRAS 07251-0248

Cristina Romero-Cañizales, Miguel Ángel Pérez-Torres, Antxon Alberdi

摘要:

我们目前的高灵敏度,高分辨率图像的超铝红外线Galerkin(ULIRG; L $_{\mathrm{FIR}} > 10^{12}$ L $_\odot$)IRAS 23365+3604和IRAS 07251-0248,采取与EVN在6和18厘米。这些图像显示了大量的致密成分,其光度是典型的IIL型和IIn型射电超新星(RSNe)。对这些ULIRG的进一步观察将使我们能够确认或排除它们的性质。目前的观测结果是一个项目的一部分,该项目应导致大量的SN探测,提供了对核心坍塌超新星(CCSN)速率的直接测量,并使我们能够估计ULIRG样本中的恒星形成速率(SFR)。

英文摘要:

We present high-sensitivity, high-resolution images of the Ultraluminous Infrared Galaxies (ULIRG; L$_{\mathrm{FIR}} > 10^{12}$ L$_\odot$) IRAS 23365+3604 and IRAS 07251-0248, taken with the EVN at 6 and 18 cm. The images show a large number of compact components, whose luminosities are typical of Type IIL and Type IIn Radio Supernovae (RSNe). Further observations of these ULIRGs will allow us to confirm, or to rule out, their nature. The present observations are part of a project that should result in a significant number of SN detections, providing a direct measurement of the Core Collapse Superova (CCSN) rate and allowing us to estimate the Star Formation Rate (SFR) in our sample of ULIRGs .

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。

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