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arXiv 2407.10656astro-ph.GA
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暗晕与Tully-Fisher关系检验修正引力

Dark halos and Tully-Fisher relation testing modified gravity

A. Amekhyan, S. Sargsyan

AI总结:

本研究利用15个Hi VLA超旋涡星系的暗晕数据和Tully-Fisher关系,检验含宇宙学常数的弱场广义相对论,结果与先前旋涡星系结果及晕标度关系一致,证实了该方法检验修正引力模型的有效性。

摘要:

我们利用星系晕的观测数据来检验包含宇宙学常数的弱场广义相对论。利用15个氢(Hi)VLA超旋涡星系的数据以及Tully-Fisher关系,我们获得了对每个星系的约束。结果与先前对旋涡星系的结果一致,也与晕的标度关系一致,从而证实了利用暗晕数据和Tully-Fisher关系(包括重子Tully-Fisher指数(BTFR))检验修正引力模型的有效性。

英文摘要:

We involve the galactic halo observational data to test the weak field General Relativity involving the cosmological constant. Using the data for 15 hydrogen (Hi) VLA super spirals and the Tully-Fisher relation we obtain constraints for each galaxy. The results are consistent with previous results for spiral galaxies, as well as with the scaling relations for the halos, thus confirming the efficiency of the use of dark halo data and Tully-Fisher relation, including the baryonic Tully{Fisher index (BTFR), for testing modified gravity models.

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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