arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2402.14014astro-ph.SRastro-ph.HE
收藏

JWST MIRI成像仪对超新星SN 1987A的观测

JWST MIRI Imager Observations of Supernova SN 1987A

P. Bouchet, R. Gastaud, A. Coulais, M. J. Barlow, C. Fransson, P. J. Kavanagh, J. Larsson, T. Temim, O. C. Jones, A. S. Hirschauer, T. Tikkanen, J. A. D. L. Blo… 展开作者

P. Bouchet, R. Gastaud, A. Coulais, M. J. Barlow, C. Fransson, P. J. Kavanagh, J. Larsson, T. Temim, O. C. Jones, A. S. Hirschauer, T. Tikkanen, J. A. D. L. Blommaert, O. D. Fox, A. Glasse, N. Habel, J. Hjorth, J. Jaspers, O. Krause, R. M. Lau, L. Lenkić, M. Meixner, O. Nayak, A. Rest, B. Sargent, R. Wesson, G. S. Wright, L. Colina, E. F. Van Dishoeck, M. Güdel, Th. Henning, P. -O. Lagage, G. Östlin, T. P. Ray, B. Vandenbussche

AI总结:

本文利用JWST MIRI首次对SN 1987A进行中红外成像,发现赤道环温度不均匀且红外发射已超出该环,表明激波已影响更大尺度星周介质,但未发现致密遗迹证据。

摘要:

目前对超新星(SNe)的中红外(IR)观测总体上非常少。因此,SN 1987A作为400年来距离最近的可见超新星,为我们提供了探索超新星中红外性质、其抛射物和周围介质中尘埃的机会,并见证超新星遗迹(SNR)的诞生。詹姆斯·韦布空间望远镜(JWST)凭借其高空间分辨率和极高的灵敏度,为这些问题提供了新的视角。我们报告了利用中红外仪器(MIRI)获得的首次成像观测结果。我们构建了温度图并讨论了 nascent SNR 的形态。我们的结果表明,赤道环(ER)中的温度非常不均匀。这可能是因为环的某些部分发生了尘埃破坏,正如一些先前工作所假设的那样。我们表明红外发射延伸到了赤道环之外,说明激波现在已经穿过该环,在更大尺度上影响星周介质。最后,虽然亚毫米波阿塔卡马大型毫米/亚毫米波阵列(ALMA)观测曾暗示SN 1987A致密遗迹的位置,但我们注意到我们的MIRI数据没有发现这样的证据。

英文摘要:

There exist very few mid-infrared (IR) observations of supernovae (SNe) in general. Therefore, SN 1987A, the closest visible SN in 400 years, gives us the opportunity to explore the mid-IR properties of SNe, the dust in their ejecta and surrounding medium, and to witness the birth of a SN remnant (SNR). The James Webb Space Telescope (JWST), with its high spatial resolution and extreme sensitivity, gives a new view on these issues. We report on the first imaging observations obtained with the Mid-InfraRed Instrument (MIRI). We build temperature maps and discuss the morphology of the nascent SNR. Our results show that the temperatures in the equatorial ring (ER) are quite non-uniform. This could be due to dust destruction in some parts of the ring, as had been assumed in some previous works. We show that the IR emission extends beyond the ER, illustrating the fact that the shock wave has now passed through this ring to affect the circumstellar medium on a larger scale. Finally, while sub-mm Atacama Large Millimeter Array (ALMA) observations have hinted at the location of the compact remnant of SN 1987A, we note that our MIRI data have found no such evidence.

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。

↑