Kavli Affiliate: Eric Peng | First 5 Authors: Eric Emsellem, Remco F. J. van der Burg, Jeremy Fensch, Tereza Jerabkova, Anita Zanella | Summary: The so-called ultra-diffuse galaxy NGC~1052-DF2 was announced to be a galaxy lacking dark matter based on a spectroscopic study of its constituent globular clusters. Here we present the first spectroscopic analysis […]
Kavli Affiliate: Lile Wang | First 5 Authors: Lile Wang, Xue-Ning Bai, Jeremy Goodman, , | Summary: Magnetized winds may be important in dispersing protoplanetary disks and influencing planet formation. We carry out global full magnetohydrodynamic simulations in axisymmetry, coupled with ray-tracing radiative transfer, consistent thermochemistry, and non-ideal MHD diffusivities. Magnetized models lacking EUV photons […]
Fangzhou Jiang, Frank C. van den Bosch, , , | Summary: [[{“value”:”We use a semi-analytical model for the substructure of dark matter haloes to assess the too-big-to-fail (TBTF) problem. The model accurately reproduces the average subhalo mass and velocity functions, as well as their halo-to-halo variance, in N-body simulations. We construct thousands of realizations of […]
Kavli Affiliate: Subo Dong | First 5 Authors: Warren Skidmore, Bob Kirshner, David Andersen, Gelys Trancho, Scot Kleinman | Summary: The Thirty Meter Telescope (TMT) International Observatory (TIO) will be a revolutionary leap forward in astronomical observing capabilities, enabling us to address some of the most profound questions about the universe. From unraveling the mysteries […]
Kavli Affiliate: Subo Dong | First 5 Authors: Warren Skidmore, Bob Kirshner, David Andersen, Gelys Trancho, Scot Kleinman | Summary: The Thirty Meter Telescope (TMT) International Observatory (TIO) will be a revolutionary leap forward in astronomical observing capabilities, enabling us to address some of the most profound questions about the universe. From unraveling the mysteries […]
Kavli Affiliate: Subo Dong | First 5 Authors: Warren Skidmore, Bob Kirshner, David Andersen, Gelys Trancho, Scot Kleinman | Summary: The Thirty Meter Telescope (TMT) International Observatory (TIO) will be a revolutionary leap forward in astronomical observing capabilities, enabling us to address some of the most profound questions about the universe. From unraveling the mysteries […]
Frank C. van den Bosch, Fangzhou Jiang, , , | Summary: [[{“value”:”We compare subhalo mass and velocity functions obtained from different simulations with different subhalo finders among each other, and with predictions from the new semi-analytical model of Jiang & van den Bosch (2014). We find that subhalo mass functions (SHMFs) obtained using different subhalo […]
Fangzhou Jiang, Song Huang, Qiusheng Gu, , | Summary: [[{“value”:”We make use of the images from the Sloan Digital Sky Survey Stripe 82 to present an analysis of r band surface brightness profiles and radial color gradients (g – r, u – r) in 111 nearby early-type galaxies (ETGs). With Stripe 82 images, we are […]