Results 71 to 80 of about 3,286 (161)

Orbital decomposition of the nuclear regions in the early-type galaxy FCC 47: Unveiling the nuclear cluster origin

Astronomy & Astrophysics
Context. Nuclear star clusters (NSCs) are among the densest stellar systems in the Universe and often coexist with supermassive black holes (SMBHs) at galaxy centres.
Lamprecht J., Feldmeier-Krause A., Lyubenova M., Fahrion K., Thater S., Jethwa P., Reiter S., Falcón-Barroso J., Maindl T. I., Santucci G., Breda I.   +10 more
doaj   +1 more source

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

Boil-off of red supergiants: mass loss and type II-P supernovae

The Open Journal of Astrophysics
The mass loss mechanism of red supergiant stars is not well understood, even though it has crucial consequences for their stellar evolution and the appearance of supernovae that occur upon core-collapse.
Jim Fuller, Daichi Tsuna
doaj   +1 more source

The JWST-SUSPENSE Ultradeep Spectroscopic Program: Survey Overview and Star Formation Histories of Quiescent Galaxies at 1 < z < 3

The Astrophysical Journal
We present an overview and first results from the Spectroscopic Ultradeep Survey Probing Extragalactic Near-infrared Stellar Emission (SUSPENSE), executed with NIRSpec on JWST.
Martje Slob, Mariska Kriek, Aliza G. Beverage, Katherine A. Suess, Guillermo Barro, Rachel Bezanson, Gabriel Brammer, Chloe M. Cheng, Charlie Conroy, Anna de Graaff, Natascha M. Förster Schreiber, Marijn Franx, Brian Lorenz, Pavel E. Mancera Piña, Danilo Marchesini, Adam Muzzin, Andrew B. Newman, Sedona H. Price, Alice E. Shapley, Mauro Stefanon, Pieter van Dokkum, Daniel R. Weisz   +21 more
doaj   +1 more source

Critical Metallicity of Cool Supergiant Formation. II. Physical Origin

The Astrophysical Journal
This study investigates the physical origin of the critical metallicity required for the formation of cool supergiants, as revealed by stellar evolution models.
Po-Sheng Ou, Ke-Jung Chen
doaj   +1 more source

Massive clusters revealed in the near infrared : Constraining the early stages of stellar evolution [PDF]

, 2011
Stellar clusters can be considered as the building blocks of galaxies. Studying how clusters form and evolve is crucial in understanding the evolution of their host galaxies. Young massive stellar clusters, in particular, play a key role in placing constraints on the physics of star formation and evolution. The stellar population inside these extremely
openaire   +1 more source

Fallback-triggered Reconnection Drives Coronal Mass Ejections on II Pegasi

The Astrophysical Journal Letters
Stellar coronal mass ejections (CMEs) play key roles in stellar evolution and planetary habitability. On the Sun, CMEs typically originate from preexisting prominences or filaments, while materials condensed via the evaporation–condensation process have ...
Dongtao Cao, Shenghong Gu
doaj   +1 more source

Simulating the Early Evolution of the Hard X-Ray Properties of a Young Stellar Population

, 2003
Submitted to the Astrophysical Journal (40 pages, including 13 figures)
Sipior, M. S., Eracleous, M., Sigurdsson, S.   +2 more
openaire   +2 more sources

Early Contraction Phases of Stellar Evolution.

The Astronomical Journal, 1965
D. Ezer, A. G. W. Cameron
openaire   +1 more source

Overmassive black holes and little red dots naturally form in simulations. [PDF]

Nature
Chon S, Hirano S, Ishiyama T, Chang SJ, Springel V.   +4 more
europepmc   +1 more source