Gas-rich and gas-poor structures through the stream velocity effect by Popa, Cristina, Naoz, Smadar, Marinacci, Federico, Vogelsberger, Mark

“…We further identify and study the formation, in the context of a non-zero stream velocity, of moderately long lived gas-dominated structures at intermediate redshifts 10 < z < 20, which Naoz and Narayan have recently proposed as potential progenitors of globular clusters.…”
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Subhalo Spreading of Thin Tidal Star Streams by Raymond G. Carlberg, Hayley Agler

“…We measure the average widths and velocity dispersions of stream populations in three Milky Way–like cold dark matter cosmology simulations containing star particle globular clusters and galactic disks of 0, 1, and 2 times a baseline model. …”
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Multi-Messenger Astrophysics of a Millisecond Pulsar Orbiting around a Massive Black Hole by Kinwah Wu

“…Extreme-mass-ratio and intermediate-mass-ratio binaries with a millisecond pulsar will help to resolve the astrophysical problems, concerning the applicability of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="script">M</mi></semantics></math></inline-formula>-<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>σ</mi></semantics></math></inline-formula> relation for galactic spheroids extending to the very low-mass galaxies and whether or not low-mass dwarf galaxies and globular clusters would harbour a nuclear intermediate-mass black hole. …”
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Kinematics of the diffuse intragroup and intracluster light in groups and clusters of galaxies in the local universe within 100 Mpc distance by Magda Arnaboldi, Ortwin Gerhard

“…Kinematic–information on these very low surface brightness structures mostly comes from discrete tracers such as planetary nebulae and globular clusters, showing highly unrelaxed velocity distributions. …”
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Transient Stellar Collisions as Multimessenger Probes: Nonthermal, Gravitational-wave Emission and the Cosmic Ladder Argument by Pau Amaro Seoane

“…In dense stellar clusters like galactic nuclei and globular clusters, stellar densities are so high that stars might physically collide with each other. …”
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Chemical tagging with APOGEE: discovery of a large population of N-rich stars in the inner Galaxy by Schiavon, RP, Zamora, O, Carrera, R, Lucatello, S, Robin, AC, Ness, M, Martell, SL, Smith, VV, García-Hernández, DA, Manchado, A, Schönrich, R, Bastian, N, Chiappini, C, Shetrone, M, Mackereth, JT, Williams, RA, Mészáros, S, Prieto, C, Anders, F, Bizyaev, D, Beers, TC, Chojnowski, SD, Cunha, K, Epstein, C, Frinchaboy, PM, Pérez, AE, Hearty, FR, Holtzman, JA, Johnson, JA, Kinemuchi, K, Majewski, SR, Muna, D, Nidever, DL, Nguyen, DC, O'Connell, RW, Oravetz, D, Pan, K, Pinsonneault, M, Schneider, DP, Schultheis, M, Simmons, A, Skrutskie, MF, Sobeck, J, Wilson, JC, Zasowski, G

“…Formation of globular clusters (GCs), the Galactic bulge, or galaxy bulges in general is an important unsolved problem in Galactic astronomy. …”

Measurement accuracy of inspiraling eccentric neutron star and black hole binaries using gravitational waves by Gondan, L, Kocsis, B

“…The identification of eccentric sources may give information on their astrophysical origin; it would indicate merging binaries in triple or higher multiplicity systems or dynamically formed binaries in dense stellar systems such as globular clusters or galactic nuclei.…”

Signatures of hierarchical mergers in black hole spin and mass distribution by Tagawa, H, Haiman, Z, Bartos, I, Kocsis, B, Omukai, K

“…A Bayesian analysis using the χeff, χp, and mchirp distributions suggests that 1g BHs have the maximum mass of ∼15–30M⊙ if the majority of mergers are of high-generation BHs (not among 1g–1g BHs), which is consistent with mergers in active galactic nucleus discs and/or nuclear star clusters, while if mergers mainly originate from globular clusters, 1g BHs are favoured to have non-zero spin magnitudes of ∼0.3. …”

A new class of high-mass X-ray binaries: Implications for core collapse and neutron-star recoil by Pfahl, E, Rappaport, S, Podsiadlowski, P, Spruit, H

“…Our model has important implications for the dynamics of stellar core collapse, the retention of neutron stars in globular clusters, and the formation of double neutron star systems in the Galaxy.…”

Enhancing Pulsar Candidate Identification with Self-tuning Pseudolabeling Semisupervised Learning by Yi Liu, Jing Jin, Hongyang Zhao, Zhenyi Wang

“…The utility of the semisupervised learning approach is evident even with minimal labeled data, which is a common scenario in the search for pulsars, including in environments like globular clusters. What stands out is the method’s capacity to detect pulsar candidates effectively with only a limited number of labeled examples. …”
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Microgalaxies in LCDM by Raphaël Errani, Rodrigo Ibata, Julio F. Navarro, Jorge Peñarrubia, Matthew G. Walker

“…Microgalaxies are therefore best distinguished from globular clusters by the presence of dark matter; either directly, by measuring their velocity dispersion, or indirectly, by examining their tidal resilience. …”
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A Study of the Pulsation Properties of 57 Non-Blazhko Ab-type RR Lyrae Stars with Homogeneous Metallicities from the LAMOST–Kepler/K2 Survey by Peng Zong, Jian-Ning Fu, Jiaxin Wang, Tian-Qi Cang, HaoTian Wang, Xiao-Yu Ma, Weikai Zong

“…The calculated amplitude ratios of R _21 , R _31 and the phase differences of ϕ _21 , ϕ _31 are consistent with the parameters of RRab stars in both globular clusters and the Large Magellanic Cloud. We find a linear relationship between the phase differences ϕ _21 and ϕ _31 , which is in good agreement with the results in the literature. …”
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First Evidence of Multi-iron Subpopulations in the Bulge Fossil Fragment Candidate Liller 1 by Chiara Crociati, Elena Valenti, Francesco R. Ferraro, Cristina Pallanca, Barbara Lanzoni, Mario Cadelano, Cristiano Fanelli, Livia Origlia, Silvia Leanza, Emanuele Dalessandro, Alessio Mucciarelli, R. Michael Rich

“…To test the validity of the adopted calibration in the metal-rich regime, the procedure was first applied to three reference bulge globular clusters (NGC 6569, NGC 6440, and NGC 6528). In all the three cases, we found single-component iron distributions, with abundance values fully in agreement with those reported in the literature. …”
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Metallicity Mapping of the Ionized Diffuse Gas at the Milky Way Disk–Halo Interface by Bo-Eun Choi, Jessica K. Werk, Kirill Tchernyshyov, J. Xavier Prochaska, Yong Zheng, Mary E. Putman, Drummond B. Fielding, Jay Strader

“…In this work, we constrain ionization corrections to neutral hydrogen column densities using precisely measured electron column densities from the dispersion measures of pulsars that lie in the same globular clusters as UV-bright targets with high-resolution absorption spectroscopy. …”
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All Puffed Up: Exploring Ultra-diffuse Galaxy Origins Through Galaxy Interactions by Catherine Fielder, Michael G. Jones, David J. Sand, Paul Bennet, Denija Crnojević, Ananthan Karunakaran, Burçin Mutlu-Pakdil, Kristine Spekkens

“…Using Hubble Space Telescope Advanced Camera for Surveys F555W and F814W imaging, we identify 8 ± 2 globular clusters in KUG 0203-Dw1 and 6 ± 2 in KDG 013, abundances typical for normal dwarf galaxies of similar stellar mass. …”
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The R-Process Alliance: Chemodynamically Tagged Groups. II. An Extended Sample of Halo r-process-enhanced Stars by Derek Shank, Timothy C. Beers, Vinicius M. Placco, Dmitrii Gudin, Thomas Catapano, Erika M. Holmbeck, Rana Ezzeddine, Ian U. Roederer, Charli M. Sakari, Anna Frebel, Terese T. Hansen

“…Associations with MW globular clusters are determined for seven CDTGs; no recognized MW dwarf galaxy satellites were associated with any of our CDTGs. …”
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A Comprehensive Catalog of UVIT Observations. I. Catalog Description and First Release of Source Catalog (UVIT DR1) by Sonika Piridi, Ranjan Kumar, Divya Pandey, Ananta C. Pradhan

“…In the final UVIT DR1 catalog, we have point sources, extended sources, clumps from nearby galaxies, globular clusters, open clusters, planetary nebulae, and gaseous nebulae. …”
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Iron-rich Metal-poor Stars and the Astrophysics of Thermonuclear Events Observationally Classified as Type Ia Supernovae. I. Establishing the Connection by Henrique Reggiani, Kevin C. Schlaufman, Andrew R. Casey

“…If our interpretation of IRMP stars is accurate, then they should be very rare in globular clusters and more common in the Magellanic Clouds and dwarf spheroidal galaxies than in the Milky Way’s halo. …”
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The GMOX science case: resolving galaxies through cosmic time by Gennaro, Mario, Robberto, Massimo, Heckman, Timothy, Smee, Stephen A., Barkhouser, Robert, Ninkov, Zoran, Adamo, Angela, Becker, George, Bellini, Andrea, Bianchi, Luciana, Bik, Arjan, Calamida, Annalisa, Calzetti, Daniela, De Rosa, Gisella, Deustua, Susana, Kalirai, Jason, Lotz, Jennifer, MacKenty, John, Manara, Carlo Felice, Meixner, Margaret, Pacifici, Camilla, Sabbi, Elena, Sahu, Kailash, Tumlinson, Jason, Bordoloi, Rongmon

“…GMOXs multi-object capability and high angular resolution enable efficient studies of crowded fields, such as globular clusters, the Milky Way bulge, the Magellanic Clouds, Local Group galaxies and galaxy clusters. …”
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A Young Super Star Cluster Powering a Nebula of Retained Massive Star Ejecta by Massimo Pascale, Liang Dai

“…The inferred O and He enhancement may have implications for the formation of multiple stellar populations in globular clusters, as stars formed from this gas would contradict the observed abundances of second-population stars.…”
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