No evidence of intrinsic linear polarization in Nova Vel 2025 (V572 Vel)
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866916929734705152 |
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| author | Lima, Isabel J. Mello, Marina M. C. Rodrigues, Claudia V. Luna, G. Juan M. Jablonski, Francisco Falkenberg, Fernando |
| author_facet | Lima, Isabel J. Mello, Marina M. C. Rodrigues, Claudia V. Luna, G. Juan M. Jablonski, Francisco Falkenberg, Fernando |
| contents | We report on polarimetric observations of V572 Vel (Nova Vel 2025) conducted on June 26th and July 21st, 2025, shortly after its nova eruption was discovered. Our measurements in the I$_C$ band revealed an average linear polarization of 1.60$\pm$0.03\% at position angle of 132.2\degr. To distinguish between intrinsic and interstellar polarization, we also measured 86 field stars in the nova's vicinity, finding an average polarization of 1.25$\pm$0.61\% at a nearly identical position angle of 132\degr. The strong consistency between the nova's polarization and that of the surrounding field stars suggests that the observed polarization is predominantly interstellar in origin. We found no significant evidence of an intrinsic polarization component, which would typically arise from an asymmetric distribution of ejected material. Further multi-band observations are recommended to confirm these findings. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_01489 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | No evidence of intrinsic linear polarization in Nova Vel 2025 (V572 Vel) Lima, Isabel J. Mello, Marina M. C. Rodrigues, Claudia V. Luna, G. Juan M. Jablonski, Francisco Falkenberg, Fernando Solar and Stellar Astrophysics Astrophysics of Galaxies We report on polarimetric observations of V572 Vel (Nova Vel 2025) conducted on June 26th and July 21st, 2025, shortly after its nova eruption was discovered. Our measurements in the I$_C$ band revealed an average linear polarization of 1.60$\pm$0.03\% at position angle of 132.2\degr. To distinguish between intrinsic and interstellar polarization, we also measured 86 field stars in the nova's vicinity, finding an average polarization of 1.25$\pm$0.61\% at a nearly identical position angle of 132\degr. The strong consistency between the nova's polarization and that of the surrounding field stars suggests that the observed polarization is predominantly interstellar in origin. We found no significant evidence of an intrinsic polarization component, which would typically arise from an asymmetric distribution of ejected material. Further multi-band observations are recommended to confirm these findings. |
| title | No evidence of intrinsic linear polarization in Nova Vel 2025 (V572 Vel) |
| topic | Solar and Stellar Astrophysics Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2509.01489 |