Results 31 to 40 of about 213,762 (290)

Galaxy-galaxy weak-lensing measurement from SDSS: II. host halo properties of galaxy groups [PDF]

, 2017
As the second paper of a series on studying galaxy-galaxy lensing signals using the Sloan Digital Sky Survey Data Release 7 (SDSS DR7), we present our measurement and modelling of the lensing signals around groups of galaxies.
Fu, Liping, Li, Nan, Lu, Tianhuan, Luo, Wentao, Mo, H. J., Radovich, Mario, Shi, Feng, Shu, Chenggang, Sunayama, Tomomi, Wang, Lei, Yang, Xiaohu, Zhang, Jiajun, Zhang, Jun   +12 more
core   +2 more sources

Modeling the dispersion measure—redshift relation for fast radio bursts

Frontiers in Astronomy and Space Sciences
This theoretical work investigates different models to predict the redshift of fast radio bursts (FRBs) from their observed dispersion measure (DM) and other reported properties.
Eduard Fernando Piratova-Moreno, Luz Ángela García   +1 more
doaj   +1 more source

The host galaxies of Compact Steep Spectrum and Gigahertz-Peaked Spectrum radio sources

, 2008
I will review some of the developments in studies of the host galaxy properties of Compact Steep Spectrum (CSS) and GigaHertz-Peaked Spectrum (GPS) radio sources.
Axon, Batcheldor, Best, de Vries, de Vries, de Vries, de Vries, de Vries, Dickson, Fabian, Fanti, Fanti, Fanti, Gelderman, Heckman, Holt, Holt, Holt, Holt, Inskip, Labiano, Labiano, Lily, Morganti, Morganti, Morganti, Murgia, O'Dea, O'Dea, O'Dea, Orienti, Owsianik, Privon, Rodríguez Zaurín, Siemiginowska, Silk, Smith, Snellen, Snellen, Snellen, Stanghellini, Stanghellini, Tadhunter, Tadhunter, Tadhunter, Wills   +45 more
core   +1 more source

A new (2+1)D cluster finding algorithm based on photometric redshifts: large scale structure in the Chandra Deep Field South [PDF]

, 2006
Aims: We study galaxy clustering and explore the dependence of galaxy properties on the the environment up to a redshift z~1, on the basis of a deep multi-band survey in the Chandra Deep Field South.
A. Fontana, Abell, Arimoto, Arnaud, Bahcall, Balogh, Bell, Blakeslee, Botzler, Bower, Carlberg, Cimatti, Cimatti, Connolly, D. Trevese, De Propris, Dressler, Dressler, E. Giallongo, Fontana, Giacconi, Giallongo, Giallongo, Gilli, Girardi, Gladders, Gomez, Goto, Grazian, Heisler, Huchra, Kauffmann, Kodama, Lanzetta, Ledlow, Lumsden, M. Castellano, Menci, Mullis, Poggianti, Poli, Postman, Rosati, Schechter, Strateva, Tanaka, York   +46 more
core   +3 more sources

The dependence of galaxy assembly bias on the selection criteria, number density, and redshift of galaxy samples

Astronomy & Astrophysics
One of the key factors influencing galaxy clustering in the nonlinear regime is galaxy assembly bias, which describes the dependence of galaxy clustering on halo properties beyond halo mass.
García-Moreno S., Chaves-Montero J.
doaj   +1 more source

Properties of the Dwarf Galaxy Population in Galaxy Clusters

, 2008
We present the observational properties of the dwarf galaxy population (Mr > M*+1) corresponding to one of the largest samples of spectroscopically confirmed galaxy cluster members reported in the literature. We have observed that red dwarf galaxies (u-r
Aguerri, Aguerri, Aguerri, Allam, Arnaboldi, Biviano, Blanton, Böhringer, C. Muñoz-Tuñón, Carlberg, Conselice, Davies, Hogg, J. Alfonso L. Aguerri, Lisker, McIntosh, Phillipps, R. Sánchez-Janssen, Rakos, Stott, Strateva, Trujillo, van Dokkum, Voges, White, York, Zwicky   +26 more
core   +1 more source

Properties of Galaxy Groups in the SDSS: I.-- The Dependence of Colour, Star Formation, and Morphology on Halo Mass [PDF]

, 2005
Using a large galaxy group catalogue constructed from the SDSS, we investigate the correlation between various galaxy properties and halo mass. We split the population of galaxies in early types, late types, and intermediate types, based on their colour ...
Bosch, Frank C. van den, Mo, H. J., Weinmann, Simone M., Yang, Xiaohu   +3 more
core   +2 more sources

Interpreting galaxy properties with improved modelling [PDF]

Proceedings of the International Astronomical Union, 2019
AbstractObservations of star-forming galaxies in the distant Universe have confirmed the importance of massive stars in shaping galaxy emission and evolution. Distant stellar populations are unresolved, and the limited data available must be interpreted in the context of stellar population models.
E. R. Stanway, J. J. Eldridge
openaire   +2 more sources

An Over-Massive Black Hole in the Compact Lenticular Galaxy NGC1277 [PDF]

, 2012
All massive galaxies likely have supermassive black holes at their centers, and the masses of the black holes are known to correlate with properties of the host galaxy bulge component.
A van der Wel, AC Fabian, AE Reines, Arjen van der Wel, CY Peng, D Merritt, DJ Croton, E Sani, GJ Hill, Glenn van de Ven, J Kormendy, J Magorrian, JE Greene, JF Navarro, Jonelle L. Walsh, K Gültekin, K Jahnke, Karl Gebhardt, Kayhan Gültekin, M Cappellari, M Schwarzschild, MA Pahre, N Häring, N Nowak, NJ McConnell, PG van Dokkum, PG van Dokkum, R Cid Fernandes, RCE van den Bosch, RCE van den Bosch, Remco C. E. van den Bosch, RP van der Marel, RS Somerville, TH Jarrett   +33 more
core   +2 more sources

Revealing the Galaxy–Halo Connection through Machine Learning

The Astrophysical Journal, 2023
Understanding the connections between galaxy stellar mass, star formation rate, and dark matter halo mass represents a key goal of the theory of galaxy formation. Cosmological simulations that include hydrodynamics, physical treatments of star formation,
Ryan Hausen, Brant E. Robertson, Hanjue Zhu, Nickolay Y. Gnedin, Piero Madau, Evan E. Schneider, Bruno Villasenor, Nicole E. Drakos   +7 more
doaj   +1 more source