Results 111 to 120 of about 92,502 (190)

Bulgeless Evolution And the Rise of Discs (BEARD)

Astronomy & Astrophysics
We study the formation and evolution of bulgeless galaxies within the Milky Way-Andromeda analogue sample of the TNG50 simulation. Through kinematic decomposition with MORDOR, we identified bulgeless galaxies with a bulge-to-disc mass ratio of B/D ≤ 0.08,
Rosas-Guevara Yetli, Méndez-Abreu Jairo, de Lorenzo-Cáceres Adriana, Cardona-Barrero Salvador, Arjona-Gálvez Elena, Chamorro Cazorla Mario, Corsini Enrico Maria, Costantin Luca, Cuomo Virginia, Di Cintio Arianna, Fernandez David, Gasparri Daniele, Marrero-de la Rosa Carlos, Mayya Divakara, Morelli Lorenzo, Muñoz-Tuñón Casiana, Pinna Francesca, Pizzella Alessandro, Román Javier, Rosa Gonzalez Daniel, Sánchez-Janssen Rubén, Vega Olga, Zarattini Stefano   +22 more
doaj   +1 more source

Milky Way disk formation

, 2007
This thesis work has focused on the Galactic disk kinematics to put some constraints on the scenarios of the thin and thick disk formation. It takes part of the RAVE project which has the goal to spectrocpically measure the radial velocities and the stellar parameters of one million stars in the South celestial hemisphere.
openaire   +1 more source

Galaxias Enanas del Grupo Local

Momento, 2009
The satellite galaxies of the Milky Way are very important both for the studies of the formation and evolution of galaxies and for the research on the dark matter problem. In the present review paper some structural properties of the Local Group, as well
A Casallas Lagos, D J Cubillos, R A Casas Miranda   +2 more
doaj  

Measurement of Dependence of Microlensing Planet Frequency on the Host Star Mass and Galactocentric Distance by Using a Galactic Model

The Astrophysical Journal
We measure the dependence of planet frequency on host star mass, M _L , and distance from the Galactic center, R _L , using a sample of planets discovered by gravitational microlensing.
Kansuke Nunota, Naoki Koshimoto, Daisuke Suzuki, Takahiro Sumi, David P. Bennett, Aparna Bhattacharya, Yuki Hirao, Sean K. Terry, Aikaterini Vandorou   +8 more
doaj   +1 more source

Bar formation in the Milky Way type galaxies

, 2017
8 pages, 5 ...
Polyachenko, E. V., Berczik, P., Just, A.   +2 more
openaire   +2 more sources

Rising from the Ashes. II. The Bar-driven Abundance Bimodality of the Milky Way

The Astrophysical Journal
The Milky Way hosts at least two modes in its present-day distribution of Fe and α -elements. The exact cause of this bimodality is disputed, but one class of explanations involves the merger between the Milky Way and a relatively massive satellite (Gaia-
Angus Beane, James W. Johnson, Vadim A. Semenov, Lars Hernquist, Vedant Chandra, Charlie Conroy   +5 more
doaj   +1 more source

The accretion history of the Milky Way

Astronomy & Astrophysics
Dwarf spheroidal galaxies are known to be dominated by old stellar populations. This has led to the assumption that their gas-rich progenitors lost their gas during their infall in the Milky Way (MW) halo at distant look-back times. Here, we report a discovery of a tiny but robustly detected population of possibly young (∼1 Gyr old) and intermediate ...
Yanbin Yang, Elisabetta Caffau, Piercarlo Bonifacio, François Hammer, Jianling Wang, Gary A. Mamon   +5 more
openaire   +2 more sources

Formation of Galactic Disks. I. Why Did the Milky Way’s Disk Form Unusually Early?

The Astrophysical Journal
Recent results from spectroscopic and astrometric surveys of nearby stars suggest that the stellar disk of our Milky Way (MW) was formed quite early, within the first few billion years of its evolution.
Vadim A. Semenov, Charlie Conroy, Vedant Chandra, Lars Hernquist, Dylan Nelson   +4 more
doaj   +1 more source

Simulations of the formation of a Milky Way like galaxy [PDF]

, 2012
Die numerische Modellierung der Entstehung einer Milchstraßen ähnlichen Scheibengalaxien ist selbst heute, trotz des Einsatzes modernster Simulationstechniken und leistungsfähiger Großrechner, immer noch nicht zufriedenstellend möglich. Ziel dieser Arbeit ist es, verschiedene Modelle für unterschiedliche Aspekte thermischen sowie kinetischen Feedbacks ...
openaire   +1 more source

Non-Laplacian air-gap electrostatics for high-field oil-water nanoemulsion separation. [PDF]

Sci Adv
Panat S, Rufer S, Lee WH, Jayaprakash V, Agarwal S, Varanasi KK.   +5 more
europepmc   +1 more source