Zobrazeno 1 - 10
of 1 734
pro vyhledávání: '"Pichon, C"'
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
Autor:
Beckmann, R. S., Smethurst, R. J., Simmons, B. D., Coil, A., Dubois, Y., Garland, I. L., Lintott, C. J., Martin, G., Peirani, S., Pichon, C.
Here we use the Horizon-AGN simulation to test whether the spins of SMBHs in merger-free galaxies are higher. We select samples using an observationally motivated bulge-to-total mass ratio of < 0.1, along with two simulation motivated thresholds sele
Externí odkaz:
http://arxiv.org/abs/2211.13614
Autor:
Peirani, S., Prunet, S., Colombi, S., Pichon, C., Weinberg, D. H., Laigle, C., Lavaux, G., Dubois, Y., Devriendt, J.
We present LyMAS2, an improved version of the "Lyman-{\alpha} Mass Association Scheme" aiming at predicting the large-scale 3d clustering statistics of the Lyman-{\alpha} forest (Ly-{\alpha}) from moderate resolution simulations of the dark matter (D
Externí odkaz:
http://arxiv.org/abs/2204.06365
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:
Reddish, J., Kraljic, K., Petersen, M. S., Tep, K., Dubois, Y., Pichon, C., Peirani, S., Bournaud, F., Choi, H., Devriendt, J., Jackson, R., Martin, G., Park, M. J., Volonteri, M., Yi, S. K.
We use the NewHorizon simulation to study the redshift evolution of bar properties and fractions within galaxies in the stellar masses range $M_{\star} = 10^{7.25} - 10^{11.4} \ \rm{M}_{\odot}$ over the redshift range $z = 0.25 - 1.3$. We select disc
Externí odkaz:
http://arxiv.org/abs/2106.02622
Autor:
Rosito, M. S., Pedrosa, S. E., Tissera, P. B., Chisari, N. E., Dominguez-Tenreiro, R., Dubois, Y., Peirani, S., Devriendt, J., Pichon, C., Slyz, A.
Publikováno v:
A&A 652, A44 (2021)
Feedback processes play a fundamental role in the regulation of the star formation (SF) activity in galaxies and, in particular, in the quenching of early-type galaxies (ETGs) as has been inferred by observational and numerical studies of Lambda CDM
Externí odkaz:
http://arxiv.org/abs/2012.10182
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
Autor:
Jackson, R. A., Martin, G., Kaviraj, S., Ramsøy, M., Devriendt, J. E. G., Sedgwick, T., Laigle, C., Choi, H., Beckmann, R. S., Volonteri, M., Dubois, Y., Pichon, C., Yi, S. K., Slyz, A., Kraljic, K., Kimm, T., Peirani, S., Baldry, I.
Low-surface-brightness galaxies (LSBGs) -- defined as systems that are fainter than the surface-brightness limits of past wide-area surveys -- form the overwhelming majority of galaxies in the dwarf regime (M* < 10^9 MSun). Using NewHorizon, a high-r
Externí odkaz:
http://arxiv.org/abs/2007.06581
Autor:
Shuntov, Marko, Pasquet, J., Arnouts, S., Ilbert, O., Treyer, M., Bertin, E., de la Torre, S., Dubois, Y., Fouchez, D., Kraljic, K., Laigle, C., Pichon, C., Vibert, D.
Publikováno v:
A&A 636, A90 (2020)
Improving distance measurements in large imaging surveys is a major challenge to better reveal the distribution of galaxies on a large scale and to link galaxy properties with their environments. Photometric redshifts can be efficiently combined with
Externí odkaz:
http://arxiv.org/abs/2003.10766