Zobrazeno 1 - 10
of 12 952
pro vyhledávání: '"Martin, G P"'
Autor:
Yuan, Yuxuan, Martin-Alvarez, Sergio, Haehnelt, Martin G., Garel, Thibault, Keating, Laura, Witstok, Joris, Sijacki, Debora
The visibility of the Lyman-$\alpha$ (Ly$\alpha$) emission from reionization-epoch galaxies depends sensitively on the extent of the intrinsic \lya emission redwards of 1215.67~\AA. The prominent red peak resulting from resonant radiative transfer in
Externí odkaz:
http://arxiv.org/abs/2412.07970
Autor:
Asthana, Shikhar, Kulkarni, Girish, Haehnelt, Martin G., Bolton, James S., Keating, Laura C., Simmonds, Charlotte
Recent JWST observations have allowed for the first time to obtain comprehensive measurements of the ionizing photon production efficiency $\xi_\text{ion} $ for a wide range of reionization-epoch galaxies. We explore implications for the inferred UV
Externí odkaz:
http://arxiv.org/abs/2412.01906
Autor:
Qin, Yuxiang, Mesinger, Andrei, Prelogović, David, Becker, George, Bischetti, Manuela, Bosman, Sarah E. I., Davies, Frederick B., D'Odorico, Valentina, Gaikwad, Prakash, Haehnelt, Martin G., Keating, Laura, Lai, Samuel, Ryan-Weber, Emma, Satyavolu, Sindhu, Walter, Fabian, Zhu, Yongda
The Lyman alpha (Lya) forest in the spectra of z>5 quasars provides a powerful probe of the late stages of the Epoch of Reionization (EoR). With the recent advent of exquisite datasets such as XQR-30, many models have struggled to reproduce the obser
Externí odkaz:
http://arxiv.org/abs/2412.00799
Autor:
Uzeirbegovic, E., Martin, G., Kaviraj, S., Jackson, R. A., Kraljic, K., Dubois, Y., Pichon, C., Devriendt, J., Peirani, S., Silk, J., Yi, S. K.
We introduce a new concept -- termed "planarity" -- which aims to quantify planar structure in galaxy satellite systems without recourse to the number or thickness of planes. We use positions and velocities from the Gaia EDR3 to measure planarity in
Externí odkaz:
http://arxiv.org/abs/2411.17813
Optoacoustic tomography image reconstruction has been a problem of interest in recent years. By exploiting the exceptional generative power of the recently proposed diffusion models we consider a scheme which is based on a conditional diffusion proce
Externí odkaz:
http://arxiv.org/abs/2411.15156
We initiate the study of the following general clustering problem. We seek to partition a given set $P$ of data points into $k$ clusters by finding a set $X$ of $k$ centers and assigning each data point to one of the centers. The cost of a cluster, r
Externí odkaz:
http://arxiv.org/abs/2410.24104
Autor:
Yeung, Michael C. H., Ponti, Gabriele, Freyberg, Michael J., Dennerl, Konrad, Liu, Teng, Locatelli, Nicola, Mayer, Martin G. F., Sanders, Jeremy S., Sasaki, Manami, Strong, Andy, Zhang, Yi, Zheng, Xueying, Gatuzz, Efrain
Publikováno v:
A&A (2024), 690, A399
The SRG/eROSITA All-Sky Surveys (eRASSs) combine the advantages of complete sky coverage and the energy resolution provided by the charge couple device and offer the most holistic and detailed view of the diffuse soft X-ray background (SXRB) to date.
Externí odkaz:
http://arxiv.org/abs/2410.23345
The stellar stripping of satellites in cluster haloes is understood to play an important role in the production of intracluster light. Increasingly, cosmological simulations have been utilised to investigate its origin and assembly. However, such sim
Externí odkaz:
http://arxiv.org/abs/2410.19292
Autor:
Nowak, Katarzyna, Krause, Martin G. H., Siegert, Thomas, Forbrich, Jan, Yates, Robert M., Ramírez-Galeano, Laura, Charbonnel, Corinne, Gieles, Mark
Self-enrichment is one of the leading explanations for chemical anomalies in globular clusters. In this scenario, various candidate polluter stars have been proposed to eject gas with altered chemical composition during the self-enrichment process. M
Externí odkaz:
http://arxiv.org/abs/2409.16362
Autor:
Asthana, Shikhar, Haehnelt, Martin G., Kulkarni, Girish, Bolton, James S., Gaikwad, Prakash, Keating, Laura C., Puchwein, Ewald
The relative contribution of emission from stellar sources and accretion onto supermassive black holes to reionization has been brought into focus again by the apparent high abundance of faint AGN at $4\lesssim z\lesssim11$ uncovered by JWST. We inve
Externí odkaz:
http://arxiv.org/abs/2409.15453