Zobrazeno 1 - 10
of 673
pro vyhledávání: '"Kaviraj, S."'
Autor:
Bichang'a, B., Kaviraj, S., Lazar, I., Jackson, R. A., Das, S., Smith, D. J. B., Watkins, A. E., Martin, G.
Given their dominance of the galaxy number density, dwarf galaxies are central to our understanding of galaxy formation. While the incidence of AGN and their impact on galaxy evolution has been extensively studied in massive galaxies, much less is kn
Externí odkaz:
http://arxiv.org/abs/2406.11962
Autor:
Watkins, A. E., Kaviraj, S., Collins, C. C., Knapen, J. H., Kelvin, L. S., Duc, P. -A., Román, J., Mihos, J. C.
The low surface brightness (LSB) regime ($\mu_{g} \gtrsim 26$ mag arcsec$^{-2}$) comprises a vast, mostly unexplored discovery space, from dwarf galaxies to the diffuse interstellar medium. Accessing this regime requires precisely removing instrument
Externí odkaz:
http://arxiv.org/abs/2401.12297
Autor:
Jackson, R. A., Kaviraj, S., Yi, S. K., Peirani, S., Dubois, Y., Martin, G., Devriendt, J. E. G., Slyz, A., Pichon, C., Volonteri, M., Kimm, T., Kraljic, K.
The `core-cusp' problem is considered a key challenge to the LCDM paradigm. Halos in dark matter only simulations exhibit `cuspy' profiles, where density continuously increases towards the centre. However, the dark matter profiles of many observed ga
Externí odkaz:
http://arxiv.org/abs/2310.13055
Dwarf galaxies are excellent cosmological probes, because their shallow potential wells make them very sensitive to the key processes that drive galaxy evolution, including baryonic feedback, tidal interactions, and ram pressure stripping. However, s
Externí odkaz:
http://arxiv.org/abs/2302.13733
Autor:
Beckmann, R. S., Dubois, Y., Volonteri, M., Dong-Páez, C. A., Trebitsch, M., Devriendt, J., Kaviraj, S., Kimm, T., Peirani, S.
While it is well established that supermassive black holes (SMBHs) co-evolve with their host galaxy, it is currently less clear how lower mass black holes, so-called intermediate mass black holes (IMBHs), evolve within their dwarf galaxy hosts. In th
Externí odkaz:
http://arxiv.org/abs/2211.13301
Autor:
Martin, G., Bazkiaei, A. E., Spavone, M., Iodice, E., Mihos, J. C., Montes, M., Benavides, J. A., Brough, S., Carlin, J. L., Collins, C. A., Duc, P. A., Gómez, F. A., Galaz, G., Hernández-Toledo, H. M., Jackson, R. A., Kaviraj, S., Knapen, J. H., Martínez-Lombilla, C., McGee, S., O'Ryan, D., Prole, D. J., Rich, R. M., Román, J., Shah, E. A., Starkenburg, T. K., Watkins, A. E., Zaritsky, D., Laigle, C., Pichon, C., Armus, L., Bianconi, M., Buitrago, F., Busá, I., Davis, F., Demarco, R., Desmons, A., García, P., Graham, A. W., Holwerda, B., Hon, D. S. -H., Khalid, A., Klehammer, J., Klutse, D. Y., Lazar, I., Nair, P., Noakes-Kettel, E. A., Rutkowski, M., Saha, K., Sahu, N., Sola, E., Vázquez-Mata, J. A., Vera-Casanova, A., Yoon, I.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 513, Issue 1, June 2022, Pages 1459-1487
Tidal features in the outskirts of galaxies yield unique information about their past interactions and are a key prediction of the hierarchical structure formation paradigm. The Vera C. Rubin Observatory is poised to deliver deep observations for pot
Externí odkaz:
http://arxiv.org/abs/2203.07675
Autor:
Davis, F., Kaviraj, S., Hardcastle, M. J., Martin, G., Jackson, R. A., Kraljic, K., Malek, K., Peirani, S., Smith, D. J. B., Volonteri, M., Wang, L.
We combine deep optical and radio data, from the Hyper Suprime-Cam and the Low-Frequency Array (LOFAR) respectively, to study 78 radio AGN in nearby (z<0.5) dwarf galaxies. Comparison to a control sample, matched in stellar mass and redshift, indicat
Externí odkaz:
http://arxiv.org/abs/2201.09903
Autor:
Jackson, R. A., Kaviraj, S., Martin, G., Devriendt, J. E. G., Noakes-Kettel, E. A., Silk, J., Ogle, P., Dubois, Y.
In our hierarchical structure-formation paradigm, the observed morphological evolution of massive galaxies -- from rotationally-supported discs to dispersion-dominated spheroids -- is largely explained via galaxy merging. However, since mergers are l
Externí odkaz:
http://arxiv.org/abs/2201.08855
Autor:
Jackson, R. A., Kaviraj, S., Martin, G., Devriendt, J. E. G., Slyz, A., Silk, J., Dubois, Y., Yi, S. K., Pichon, C., Volonteri, M., Choi, H., Kimm, T., Kraljic, K., Peirani, S.
In the standard Lambda-CDM paradigm, dwarf galaxies are expected to be dark-matter-rich, as baryonic feedback is thought to quickly drive gas out of their shallow potential wells and quench star formation at early epochs. Recent observations of local
Externí odkaz:
http://arxiv.org/abs/2010.02219
Autor:
Martin, G., Jackson, R. A., Kaviraj, S., Choi, H., Devriendt, J. E. G., Dubois, Y., Kimm, T., Kraljic, K., Peirani, S., Pichon, C., Volonteri, M., Yi, S. K.
Dwarf galaxies (M*<10^9 Msun) are key drivers of mass assembly in high mass galaxies, but relatively little is understood about the assembly of dwarf galaxies themselves. Using the \textsc{NewHorizon} cosmological simulation (40 pc spatial resolution
Externí odkaz:
http://arxiv.org/abs/2007.07913