Results 61 to 70 of about 32,916 (218)

The Complex Structure of the Bulge of M31

The Astrophysical Journal Supplement Series, 2023
The bulge of M31 is of interest regarding the nature of galactic bulges and how their structure relates to bulge formation mechanisms and their subsequent evolution.
Denis Leahy, Traian Craiciu, Joseph Postma   +2 more
doaj   +1 more source

Structures in Galaxy Clusters [PDF]

The Astrophysical Journal, 1994
(16 pages in LATEX, 4 tables in LATEX are at the end of the file, the figures not included are available upon request), REF SISSA 158/93 ...
Escalera, E., Biviano, A., Girardi, M., Giuricin, G., Mardirossian, F., Mazure, A., Mezzetti, M.   +6 more
openaire   +3 more sources

The clustering of dark matter, haloes & galaxies [PDF]

, 2008
In this thesis I study the spatial distribution of galaxies, haloes and dark matter particles using a suite of state-of-art cosmological N-body simulations of the growth structure in the Universe.
Angulo de la Fuente, Raúl Esteban
core  

A large-scale galaxy structure at z = 2.02 associated with the radio galaxy MRC 0156-252 [PDF]

, 2013
We present the spectroscopic confirmation of a structure of galaxies surrounding the radio galaxy MRC 0156-252 at z = 2.02. The structure was initially discovered as an overdensity of both near-infrared selected z > 1.6 and mid-infrared selected z > 1.2 ...
Rettura, A., Overzier, R., Galametz, Audrey, Joël Vernet, Nick Seymour, Galametz, A., Pentericci, L., Overzier, Roderik, Pentericcil, Laura, Daniel Stern, Rettura, Alessandro, Carlos De Breuck, Hatch, N., Kurk, Jaron, Wylezalek, Dominika, Jaron Kurk, Dominika Wylezalek, Wylezalek, D., Vernet, Joël, Hatch, Nina, Rene Fassbender, Nina Hatch, Stern, D., Fassbender, R., Kurk, J., Stern, Daniel, De Breuck, Carlos, Alessandro Rettura, Roderik Overzier, Seymour, Nick, Pentericci, Laura, Audrey Galametz, Seymour, N., Fassbender, Rene, De Breuck, C., Laura Pentericci, Vernet, J.   +36 more
core   +1 more source

The edge of the Milky Way’s star-forming disc: Evidence from a ’U-shaped’ stellar age profile

Astronomy & Astrophysics
We leveraged reliable age and distance estimates from LAMOST-DR3 and APOGEE-DR17+AstroNN combined with Gaia data to perform a detailed analysis of the stellar age distribution in the Milky Way’s (MW) outer disc using giant stars. Selecting stars near the
Fiteni Karl, Anderson Stuart Robert, Debattista Victor. P., Caruana Joseph, Amarante João A. S., Gough-Kelly Steven, Eyer Laurent, Beraldo e Silva Leandro, Khachaturyants Tigran, Cuomo Virginia   +9 more
doaj   +1 more source

THE ROLE OF POOR GALAXY CLUSTERS FOR STUDYING SUPERCLUSTER STRUCTURE

Odessa Astronomical Publications, 2008
The distribution of galaxy clusters is analyzed in regions of 6 galaxy superclusters with both measured and estimated redshifts. The positions of ACO and APM galaxy clusters in the regions are compared with the positions of galaxy clusters and groups ...
E. A. Panko
doaj   +1 more source

Simulating molecular cloud regulated star formation in Galaxies [PDF]

, 2007
This thesis is primarily concerned with understanding the process of galaxy formation via the simulation of the interstellar medium, star formation and supernova feedback.
Booth, Craig Martin
core  

Early assembly of the most massive galaxies [PDF]

, 2009
The current consensus is that galaxies begin as small density fluctuations in the early Universe and grow by in situ star formation and hierarchical merging(1).
Chris A. Collins, Scott T Kay (16045382), Nicola Mehrtens (16047884), Ed Lloyd-Davies, Hoyle, Ben, Hosmer, Mark, Christopher J. Miller, Ben Hoyle, Mehrtens, Nicola, Robert G. Mann, Pedro T. P. Viana, Martin Sahlén (267044), S Adam Stanford (16061237), Mark Hosmer (16070585), Robert C Nichol (16067396), John P Stott (16070582), Martin Sahlén, Sahlen, Martin, John P. Stott, Kathy Romer (4460893), Matt Hilton (6956609), Viana, Pedro T. P., Mann, Robert G., Ben Hoyle (6914513), Stott, John P., Matt Hilton, Robert G Mann (7965452), Andrew Liddle, Stanford, S. Adam, Christopher J Miller (16070591), A. Kathy Romer, Davidson, Michael, Ed Lloyd-Davies (16075100), Romer, A. Kathy, Robert C. Nichol, Andrew Liddle (16042793), Pedro T P Viana (16045379), Nichol, Robert C., Kay, Scott T., Michael J. West, Chris A Collins (16061234), Scott T. Kay, Collins, Chris A., Michael Davidson, Mark Hosmer, West, Michael J., Michael Davidson (699678), S. Adam Stanford, Michael J West (5524436), Liddle, Andrew, Nicola Mehrtens, Miller, Christopher J., Hilton, Matt, Lloyd-Davies, Ed   +53 more
core   +1 more source

Line-of-Sight Structure Toward Strong Lensing Galaxy Clusters

Spectroscopic and photometric catalogs of galaxies analyzed in Bayliss et al. study of line of sight structure toward strong lensing galaxy clusters. There are two types of ASCII tables, one containing the photometric and redshift data for each galaxy ...
Matthew B Bayliss
core   +1 more source

MHD numerical simulations in a cosmological context [PDF]

, 2011
Magnetic fields in the Universe are found in almost all studied environments. In particular, their presence in the inter-galactic medium and in the intra-cluster medium is confirmed by diffuse radio emission as well as by observations of Faraday ...
Stasyszyn, Federico Andrés, Stasyszyn, F.   +1 more
core