MIGHTEE-H I : possible interactions with the galaxy NGC 895
- Author
- B. Namumba, J. Román, J. Falcón-Barroso, J. H. Knapen, R. Ianjamasimanana, E. Naluminsa, G. I. G. Józsa, M. Korsaga, N. Maddox, B. Frank, S. Sikhosana, S. Legodi, C. Carignan, A. A. Ponomareva, T. Jarrett, D. Lucero, O. M. Smirnov, J. M. van der Hulst, D. J. Pisano, K Malek, L. Marchetti, M. Vaccari, M. Jarvis, Maarten Baes (UGent) , M. Meyer, E. A. K. Adams, H. Chen, J. Delhaize, S. H. A. Rajohnson, S. Kurapati, I. Heywood and L. Verdes-Montenegro
- Organization
- Project
- Abstract
- The transformation and evolution of a galaxy is strongly influenced by interactions with its environment. Neutral hydrogen (H I) is an excellent way to trace these interactions. Here, we present H I observations of the spiral galaxy NGC 895, which was previously thought to be isolated. High-sensitivity H I observations from the MeerKAT large survey project MIGHTEE reveal possible interaction features, such as extended spiral arms and the two newly discovered H I companions, that drive us to change the narrative that it is an isolated galaxy. We combine these observations with deep optical images from the Hyper Suprime Camera to show an absence of tidal debris between NGC 895 and its companions. We do find an excess of light in the outer parts of the companion galaxy MGTH _ J022138.1-052631, which could be an indication of external perturbation and thus possible sign of interactions. Our analysis shows that NGC 895 is an actively star-forming galaxy with a SFR of 1.75 ± 0.09[M⊙/yr], a value typical for high-stellar mass galaxies on the star-forming main sequence. It is reasonable to state that different mechanisms may have contributed to the observed features in NGC 895, and this emphasizes the need to revisit the target with more detailed observations. Our work shows the high potential and synergy of using state-of-the-art data in both H I and optical to reveal a more complete picture of galaxy environments.
- Keywords
- Astronomy and Astrophysics, galaxies: evolution, galaxies: individual: NGC 895, galaxies: interactions, STAR-FORMATION RATES, NEUTRAL HYDROGEN, DISK GALAXIES, SKY SURVEY, M81 GROUP, MU-M, EVOLUTION, EMISSION, PROJECT, ALPHA
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01H50RXZ92EDKQ3MEBHKHG1MH6
- MLA
- Namumba, B., et al. “MIGHTEE-H I : Possible Interactions with the Galaxy NGC 895.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 521, no. 4, 2023, pp. 5177–90, doi:10.1093/mnras/stad857.
- APA
- Namumba, B., Román, J., Falcón-Barroso, J., Knapen, J. H., Ianjamasimanana, R., Naluminsa, E., … Verdes-Montenegro, L. (2023). MIGHTEE-H I : possible interactions with the galaxy NGC 895. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 521(4), 5177–5190. https://doi.org/10.1093/mnras/stad857
- Chicago author-date
- Namumba, B., J. Román, J. Falcón-Barroso, J. H. Knapen, R. Ianjamasimanana, E. Naluminsa, G. I. G. Józsa, et al. 2023. “MIGHTEE-H I : Possible Interactions with the Galaxy NGC 895.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 521 (4): 5177–90. https://doi.org/10.1093/mnras/stad857.
- Chicago author-date (all authors)
- Namumba, B., J. Román, J. Falcón-Barroso, J. H. Knapen, R. Ianjamasimanana, E. Naluminsa, G. I. G. Józsa, M. Korsaga, N. Maddox, B. Frank, S. Sikhosana, S. Legodi, C. Carignan, A. A. Ponomareva, T. Jarrett, D. Lucero, O. M. Smirnov, J. M. van der Hulst, D. J. Pisano, K Malek, L. Marchetti, M. Vaccari, M. Jarvis, Maarten Baes, M. Meyer, E. A. K. Adams, H. Chen, J. Delhaize, S. H. A. Rajohnson, S. Kurapati, I. Heywood, and L. Verdes-Montenegro. 2023. “MIGHTEE-H I : Possible Interactions with the Galaxy NGC 895.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 521 (4): 5177–5190. doi:10.1093/mnras/stad857.
- Vancouver
- 1.Namumba B, Román J, Falcón-Barroso J, Knapen JH, Ianjamasimanana R, Naluminsa E, et al. MIGHTEE-H I : possible interactions with the galaxy NGC 895. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 2023;521(4):5177–90.
- IEEE
- [1]B. Namumba et al., “MIGHTEE-H I : possible interactions with the galaxy NGC 895,” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 521, no. 4, pp. 5177–5190, 2023.
@article{01H50RXZ92EDKQ3MEBHKHG1MH6, abstract = {{The transformation and evolution of a galaxy is strongly influenced by interactions with its environment. Neutral hydrogen (H I) is an excellent way to trace these interactions. Here, we present H I observations of the spiral galaxy NGC 895, which was previously thought to be isolated. High-sensitivity H I observations from the MeerKAT large survey project MIGHTEE reveal possible interaction features, such as extended spiral arms and the two newly discovered H I companions, that drive us to change the narrative that it is an isolated galaxy. We combine these observations with deep optical images from the Hyper Suprime Camera to show an absence of tidal debris between NGC 895 and its companions. We do find an excess of light in the outer parts of the companion galaxy MGTH _ J022138.1-052631, which could be an indication of external perturbation and thus possible sign of interactions. Our analysis shows that NGC 895 is an actively star-forming galaxy with a SFR of 1.75 ± 0.09[M⊙/yr], a value typical for high-stellar mass galaxies on the star-forming main sequence. It is reasonable to state that different mechanisms may have contributed to the observed features in NGC 895, and this emphasizes the need to revisit the target with more detailed observations. Our work shows the high potential and synergy of using state-of-the-art data in both H I and optical to reveal a more complete picture of galaxy environments.}}, author = {{Namumba, B. and Román, J. and Falcón-Barroso, J. and Knapen, J. H. and Ianjamasimanana, R. and Naluminsa, E. and Józsa, G. I. G. and Korsaga, M. and Maddox, N. and Frank, B. and Sikhosana, S. and Legodi, S. and Carignan, C. and Ponomareva, A. A. and Jarrett, T. and Lucero, D. and Smirnov, O. M. and van der Hulst, J. M. and Pisano, D. J. and Malek, K and Marchetti, L. and Vaccari, M. and Jarvis, M. and Baes, Maarten and Meyer, M. and Adams, E. A. K. and Chen, H. and Delhaize, J. and Rajohnson, S. H. A. and Kurapati, S. and Heywood, I. and Verdes-Montenegro, L.}}, issn = {{0035-8711}}, journal = {{MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY}}, keywords = {{Astronomy and Astrophysics,galaxies: evolution,galaxies: individual: NGC 895,galaxies: interactions,STAR-FORMATION RATES,NEUTRAL HYDROGEN,DISK GALAXIES,SKY SURVEY,M81 GROUP,MU-M,EVOLUTION,EMISSION,PROJECT,ALPHA}}, language = {{eng}}, number = {{4}}, pages = {{5177--5190}}, title = {{MIGHTEE-H I : possible interactions with the galaxy NGC 895}}, url = {{http://doi.org/10.1093/mnras/stad857}}, volume = {{521}}, year = {{2023}}, }
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