Zobrazeno 1 - 10
of 5 211
pro vyhledávání: '"Harris William"'
Autor:
Cournoyer-Cloutier, Claude, Sills, Alison, Harris, William E., Polak, Brooke, Rieder, Steven, Andersson, Eric P., Appel, Sabrina M., Mac Low, Mordecai-Mark, McMillan, Stephen, Zwart, Simon Portegies
We study the evolution of populations of binary stars within massive cluster-forming regions. We simulate the formation of young massive star clusters within giant molecular clouds with masses ranging from 2 x 10$^{4}$ to 3.2 x 10$^{5}$ M$_{\odot}$.
Externí odkaz:
http://arxiv.org/abs/2410.07433
Autor:
Janssens, Steven R., Forbes, Duncan A., Romanowsky, Aaron J., Gannon, Jonah, Pfeffer, Joel, Couch, Warrick J., Brodie, Jean P., Harris, William E., Durrell, Patrick R., Bekki, Kenji
We present Hubble Space Telescope ACS/WFC and WFC3/UVIS imaging for a sample of 50 low surface brightness (LSB) galaxies in the $\sim$10$^{15}$ M$_{\odot}$ Perseus cluster, which were originally identified in ground-based imaging. We measure the stru
Externí odkaz:
http://arxiv.org/abs/2409.07518
Autor:
Li, Dayi, Eadie, Gwendolyn, Brown, Patrick, Harris, William, Abraham, Roberto, van Dokkum, Pieter, Janssens, Steven, Berek, Samantha, Danieli, Shany, Romanowsky, Aaron, Speagle, Joshua
We present \textsc{Mathpop}, a novel method to infer the globular cluster (GC) counts in ultra-diffuse galaxies (UDGs) and low-surface brightness galaxies (LSBGs). Many known UDGs have a surprisingly high ratio of GC number to surface brightness. How
Externí odkaz:
http://arxiv.org/abs/2409.06040
Autor:
Hartman, Kate, Harris, William E.
The photometric colors of globular clusters (GCs) act as effective proxies for metallicity, since all normally used optical/IR color indices exhibit a nonlinear but monotonic relation between their integrated color and their metallicity. One color in
Externí odkaz:
http://arxiv.org/abs/2406.09596
Autor:
Dornan, Veronika, Harris, William E.
We have developed a novel method of determining 2D radial density profiles for astronomical systems of discrete objects using Voronoi tessellations. This Voronoi-based method was tested against the standard annulus-based method on 5 simulated systems
Externí odkaz:
http://arxiv.org/abs/2406.02390
Autor:
Harris, William E., Speagle, Joshua S.
In almost any study involving optical/NIR photometry, understanding the completeness of detection and recovery is an essential part of the work. The recovery fraction is, in general, a function of several variables including magnitude, color, backgro
Externí odkaz:
http://arxiv.org/abs/2405.19135
Autor:
van Dokkum, Pieter, Li, Dayi David, Abraham, Roberto, Danieli, Shany, Eadie, Gwendolyn M., Harris, William E., Romanowsky, Aaron J.
Publikováno v:
Res. Notes AAS, 8, 135 (2024)
CDG-1 is a tight grouping of four likely globular clusters in the Perseus cluster, and a candidate dark galaxy with little or no diffuse light. Here we provide new constraints on the luminosity of any underlying stellar emission, using HST/UVIS F200L
Externí odkaz:
http://arxiv.org/abs/2405.12907
Autor:
Sakib, Mashnoon Alam, Triplett, Brandon, Harris, William, Hussain, Naveed, Senichev, Alexander, Momenzadeh, Melika, Bocanegra, Joshua, Wu, Ruqian, Boltasseva, Alexandra, Shalaev, Vladimir M., Shcherbakov, Maxim R.
Single photon emitters (SPEs) hosted in hexagonal boron nitride (hBN) are essential elementary building blocks for enabling future on-chip quantum photonic technologies that operate at room temperature. However, fundamental challenges, such as managi
Externí odkaz:
http://arxiv.org/abs/2405.02516
Deep JWST imaging of the giant galaxy cluster Abell 2744, at redshift $z=0.308$, is used to explore the features of its rich population of globular clusters (GCs), building on our initial survey of the system (Harris & Reina-Campos 2023). We use the
Externí odkaz:
http://arxiv.org/abs/2404.10813
Autor:
Diego, J. M., Li, Sung Kei, Amruth, Alfred, Meena, Ashish K., Broadhurst, Tom J., Kelly, Patrick L., Filippenko, Alexei V., Williams, Liliya L. R., Zitrin, Adi, Harris, William E., Reina-Campos, Marta, Giocoli, Carlo, Dai, Liang, Struble, Mitchell F., Treu, Tommaso, Fudamoto, Yoshinobu, Gilman, Daniel, Koekemoer, Anton M., Lim, Jeremy, Palencia, J. M., Sun, Fengwu, Windhorst, Rogier A.
Publikováno v:
A&A 689, A167 (2024)
Observations of caustic-crossing galaxies at redshift $0.7
Externí odkaz:
http://arxiv.org/abs/2404.08033