تقرير
FAST discovery of a fast neutral hydrogen outflow
| العنوان: | FAST discovery of a fast neutral hydrogen outflow |
|---|---|
| المؤلفون: | Su, Renzhi, Gu, Minfeng, Curran, S. J., Mahony, Elizabeth K., Tang, Ningyu, Allison, James R., Li, Di, Zhu, Ming, Aditya, J. N. H. S., Yoon, Hyein, Zheng, Zheng, Wu, Zhongzu |
| سنة النشر: | 2023 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Astrophysics of Galaxies |
| الوصف: | In this letter, we report the discovery of a fast neutral hydrogen outflow in SDSS J145239.38+062738.0, a merging radio galaxy containing an optical type I active galactic nuclei (AGN). This discovery was made through observations conducted by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) using redshifted 21-cm absorption. The outflow exhibits a blueshifted velocity likely up to $\sim-1000\,\rm km\,s^{-1}$ with respect to the systemic velocity of the host galaxy with an absorption strength of $\sim -0.6\,\rm mJy\,beam^{-1}$ corresponding to an optical depth of 0.002 at $v=-500\,\rm km\,s^{-1}$. The mass outflow rate ranges between $2.8\times10^{-2}$ and $3.6\, \rm M_\odot \, yr^{-1}$, implying an energy outflow rate ranging between $4.2\times10^{39}$ and $9.7\times10^{40}\rm\,erg\,s^{-1}$, assuming 100 K $ |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2309.01890 |
| رقم الأكسشن: | edsarx.2309.01890 |
| قاعدة البيانات: | arXiv |
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