Reply to Comment on "A slightly oblate dark matter halo revealed by a retrograde precessing Galactic disk warp"
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866929486303330304 |
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| author | Huang, Yang Feng, Qikang Khachaturyants, Tigran Zhang, Huawei Liu, Jifeng Shen, Juntai Beers, Timothy C. Lu, Youjun Wang, Song Yuan, Haibo |
| author_facet | Huang, Yang Feng, Qikang Khachaturyants, Tigran Zhang, Huawei Liu, Jifeng Shen, Juntai Beers, Timothy C. Lu, Youjun Wang, Song Yuan, Haibo |
| contents | In this reply, we present a comprehensive analysis addressing the concerns raised by Dehnen et al. (2024) regarding our recent measurement of the disk warp precession using the `motion-picture' method (Huang et al. 2024). We carefully examine the impact of ignoring the twist of the disk warp and the so-called $R$-$τ$ correlation on the estimation of the precession rate. The results indicate that the effect is minor and does not exceed the systematic and statistical uncertainties. Using N-body+SPH simulation data, we confirm that the `motion-picture' technique is effective in measuring retrograde precession of disk warp in stellar populations younger than 170 Myr, similar to classical Cepheids. Therefore, the overall conclusions of Huang et al. (2024) remain robust. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2409_02734 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Reply to Comment on "A slightly oblate dark matter halo revealed by a retrograde precessing Galactic disk warp" Huang, Yang Feng, Qikang Khachaturyants, Tigran Zhang, Huawei Liu, Jifeng Shen, Juntai Beers, Timothy C. Lu, Youjun Wang, Song Yuan, Haibo Astrophysics of Galaxies In this reply, we present a comprehensive analysis addressing the concerns raised by Dehnen et al. (2024) regarding our recent measurement of the disk warp precession using the `motion-picture' method (Huang et al. 2024). We carefully examine the impact of ignoring the twist of the disk warp and the so-called $R$-$τ$ correlation on the estimation of the precession rate. The results indicate that the effect is minor and does not exceed the systematic and statistical uncertainties. Using N-body+SPH simulation data, we confirm that the `motion-picture' technique is effective in measuring retrograde precession of disk warp in stellar populations younger than 170 Myr, similar to classical Cepheids. Therefore, the overall conclusions of Huang et al. (2024) remain robust. |
| title | Reply to Comment on "A slightly oblate dark matter halo revealed by a retrograde precessing Galactic disk warp" |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2409.02734 |