Results 31 to 40 of about 532,071 (203)

Simulating supernova feedback in galaxy disks [PDF]

, 2012
In this thesis I examine supernova feedback in hydrodynamical simulations of galaxy disks. Understanding this process entails the numerical evaluation of cooling in radiative shocks, and we present a set of simulations using two widely used numerical ...
CREASEY, PETER,EDWARD, Creasey, Peter Edward   +1 more
core  

Corvus A: A Low-mass, Isolated Galaxy at 3.5 Mpc

The Astrophysical Journal Letters
We report the discovery of Corvus A, a low-mass, gas-rich galaxy at a distance of approximately 3.5 Mpc, identified in DR10 of the Dark Energy Camera Legacy Imaging Survey during the initial phase of our ongoing SEmi-Automated Machine LEarning Search for
Michael G. Jones, David J. Sand, Burçin Mutlu-Pakdil, Catherine E. Fielder, Denija Crnojević, Paul Bennet, Kristine Spekkens, Richard Donnerstein, Amandine Doliva-Dolinsky, Ananthan Karunakaran, Jay Strader, Dennis Zaritsky   +11 more
doaj   +1 more source

photoD with Rubin’s Data Preview 1: First stellar photometric distances and faint blue star deficits

Astronomy & Astrophysics
Aims. We investigate the utility of Rubin’s Data Preview 1 (DP1) for estimating stellar number density profiles across the Milky Way halo. Methods.
Palaversa L., Donev E., Ivezić Ž., Mrakovčić K., Caplar N., Jurićc M., Jurkić T., Campos S., DeLucchi M., Jones D., Malanchev K., Malz A. I., McGuire S., Abel B., Girardi L., Pastorelli G., Trabucchi M., Zaggia S., Acosta E., Adair C. L., Andrew J., Aubourg É., Bauer A. E., Beebe W., Bellm E. C., Blum R. D., Booth M. T., Boucaud A., Branton D., Burke D. L., Calabrese D., Carlin J. L., Chiang H.-F., Choi Y., Connolly A. J., Dagoret-Campagne S., Daly P. N., Daruich F., Daubard G., Dennihy E., Drass H., Eiger O., Eisner A. M., Guy L. P., Hoblitt J., Ingraham P., Jammes F., Jannuzi B. T., Jee M. J., Jenness T., Jones R. L., Juramy-Gilles C., Kahn S. M., Kang Y., Kannawadi A., Kelvin L. S., Kotov I. V., Kovács G., Kurita N. R., Lange T., Laporte D., Lazarte J. C., Liang S., Lopez M., Lust N. B., Lutfi M., Lynn O., Mainetti G., Menanteau F., Miller M., Moniez M., Nourbakhsh E., Park H. Y., Peterson J. R., Plante R., Plazas Malagón A. A., Porter M. N., Reil K. A., Riot V. J., Roodman A., Rykoff E. S., Schindler R. H., Sebag J., Sedaghat N., Shaw R. A., Shugart A., Siruno K. B., Smith J. A., Swinbank J. D., Thayer J. G., Thomas S., Tighe R., Tucker D. L., Turri M., Urbach E. K., Van Klaveren B., van Reeven W., Waters C. Z., Willman B.   +98 more
doaj   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source

Clustering and redshift-space distortions in QSO and galaxy surveys [PDF]

, 2006
In this thesis, we exploit the potential of existing QSO and galaxy surveys for investigating the nature of the large scale structure in the Universe. A detailed analysis of clustering and redshift- space distortions allows us to constrain cosmological ...
Cruz da Angela, José Antonio, José Antonio Cruz da Angela   +1 more
core  

Semiresolved Stellar Populations as Distance Indicators

The Astrophysical Journal Letters
Galaxy distances are central to our understanding of the Universe. Despite the success of existing approaches, independent and complementary methods remain valuable for testing systematic effects and extending the applicability range of different ...
Ignacio Martín-Navarro, Patricia Iglesias Navarro, Francesco La Barbera, Alexandre Vazdekis, Michael A. Beasley, Marc Huertas-Company, ChangHoon Hahn, Luis Peralta de Arriba, Isaac Alonso Asensio, Eirini Angeloudi, Miguel Cerviño, Katja Fahrion, Tereza Jerabkova, Jesús Falcón-Barroso, Sebastián F. Sánchez, Prashin Jethwa   +15 more
doaj   +1 more source

From Flow to Function: Using Different Static Mixers to Fabricate Microarchitected Materials Via Chaotic Printing

Advanced Science, EarlyView.
Complex microarchitectures emerge from simple flow‐driven transformations as static mixers iteratively reorient and split material domains. Coupled with diverse deposition strategies, chaotic printing provides an accessible platform for fabricating architected materials that support biologically and chemically relevant processes. ABSTRACT Nature builds
Edna Johana Bolívar‐Monsalve, Carlos Fernando Ceballos‐González, Diego Alonso Quevedo‐Moreno, Irving Isaí Rendón‐Moreno, Ariel Cantoral‐Sánchez, Héctor Ambriz‐González, Mario Moisés Alvarez, Grissel Trujillo‐de Santiago   +7 more
wiley   +1 more source

Constraining dark energy using real and mock galaxy surveys [PDF]

, 2009
In this thesis, we study how dark energy may be constrained by measurements of large-scale clustering in future galaxy surveys, and through the imprint of a time-varying large-scale potential on the CMB (the integrated Sachs-Wolfe effect).
CAI, YANCHUAN
core  

The Geography of Success: A Spatial Analysis of Export Intensity in the Italian Wine Industry

Agribusiness, EarlyView.
ABSTRACT This paper investigates the paradox of how Italy's fragmented, SME‐dominated wine industry achieves global export success. Moving beyond purely firm‐centric explanations, we test whether export intensity is spatially dependent, clustering geographically in regional ecosystems.
Nicolas Depetris Chauvin, Jonas Di Vita
wiley   +1 more source

Principal Component‐Based Classification of Blazar Candidates of Uncertain Type in the 4FGL/LAT

Astronomische Nachrichten, EarlyView.
ABSTRACT We adopted principal component analysis (PCA), linear discriminant analysis (LDA), and support vector machines (SVM), to study classification for a sample of 2708 Fermi blazars: 1142 BL Lac objects (BLLs), 759 flat spectrum radio quasars (FSRQs), and 807 blazar candidates of uncertain type (BCUs).
Wen‐Xin Yang, Guo‐Hai Chen, Jing‐Tian Zhu, Hong‐Guang Wang, Denis Bastieri, Xu‐Hong Ye, Jing‐Chao Liang, De‐Xiang Wu, Jiang‐He Yang, Anton A. Strigachev, Rumen S. Bachev, Jun‐Jie Feng, Yi Liu, Jun‐Hui Fan   +13 more
wiley   +1 more source