Results 81 to 90 of about 168 (138)

The Extended Baryonic Halo of NGC 3923

Galaxies, 2017
Galaxy halos and their globular cluster systems build up over time by the accretion of small satellites. We can learn about this process in detail by observing systems with ongoing accretion events and comparing the data with simulations.
Bryan W. Miller, Tomás Ahumada, Thomas H. Puzia, Graeme N. Candlish, Stacy S. McGaugh, J. Christopher Mihos, Robyn E. Sanderson, Mischa Schirmer, Rory Smith, Matthew A. Taylor   +9 more
doaj   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

Planetary nebulae as tracers of accreted stellar populations in massive galaxies in groups and clusters

Frontiers in Astronomy and Space Sciences
Planetary nebulae (PNe) are valuable spatial and kinematic tracers of nearby galaxies. In this mini-review, I focus on their role in tracing the halo and intra-cluster/intra-group light assembly in groups and clusters of galaxies within 100 Mpc and, in ...
Johanna Hartke, Johanna Hartke, Johanna Hartke   +2 more
doaj   +1 more source

Creating S0s with Major Mergers: A 3D View

Galaxies, 2015
A number of simulators have argued that major mergers can sometimes preserve discs, but the possibility that they could explain the emergence of lenticular galaxies (S0s) has been generally neglected.
Miguel Querejeta, M. Carmen Eliche-Moral, Trinidad Tapia, Alejandro Borlaff, Glenn van de Ven, Mariya Lyubenova, Marie Martig, Jesús Falcón-Barroso, Jairo Méndez-Abreu, Jaime Zamorano, Jesús Gallego   +10 more
doaj   +1 more source

Exponential bulges and antitruncated disks in lenticular galaxies [PDF]

Proceedings of the International Astronomical Union, 2008
AbstractThe presence of exponential bulges and anti-truncated disks has been noticed in many lenticular galaxies. In fact, it could be expected because the very formation of S0 galaxies includes various processes of secular evolution. We discuss how to distinguish between a pseudobulge and an anti-truncated disk, and also what particular mechanisms may
openaire   +2 more sources

Multi-spin stellar velocity maps of the most massive galaxies

Astronomy & Astrophysics
We present stellar kinematics of the MUSE Most Massive Galaxies (M3G) Survey, comprising 25 galaxies brighter than −25.7 mag in the Ks band and stellar masses above ≈6 × 1011 M⊙.
Krajnović Davor, Emsellem Eric, Bacon Roland, Boogaard Leindert A., Weilbacher Peter M., Wisotzki Lutz   +5 more
doaj   +1 more source

Learning the Universe: GalactISM Simulations of Resolved Star Formation and Galactic Outflows across Main-sequence and Quenched Galactic Environments

The Astrophysical Journal
We present a suite of six high-resolution chemodynamical simulations of isolated galaxies, spanning observed disk-dominated environments on the star-forming main sequence, as well as quenched, bulge-dominated environments.
Sarah M. R. Jeffreson, Eve C. Ostriker, Chang-Goo Kim, Jindra Gensior, Greg L. Bryan, Timothy A. Davis, Lars Hernquist, Sultan Hassan   +7 more
doaj   +1 more source

Modelling the photometric and morphological evolution of disc galaxies in the cluster environment

Astronomy & Astrophysics
Compelling observational evidence indicates that the disc population in galaxy clusters has undergone rapid evolution, transitioning from a dominance of blue spirals to red lenticular galaxies (S0s) over the past ∼7 Gyr.
Marasco A., Poggianti B. M., Vulcani B., Moretti A., Gullieuszik M., Fritz J.   +5 more
doaj   +1 more source

Dynamical properties and star formation history of a low-mass quenched galaxy at cosmic noon

Astronomy & Astrophysics
We present the spectroscopic confirmation and in-depth analysis of AURORA-LQG1, a low-mass quiescent galaxy at zspec = 2.0834 with log(M★/M⊙) = 9.6, observed with medium-resolution JWST/NIRSpec spectroscopy.
Ito K., Valentino F., Baker W. M., Brammer G., Gottumukkala R., Kakimoto T., Lagos C. D. P., Onodera M., Pensabene A., Scarpe G., Tanaka M., Whitaker K. E., Reddy N. A., Sanders R. L., Shapley A. E.   +14 more
doaj   +1 more source

Toward Understanding the Evolutionary Role of Star-forming Lenticular Galaxies: New H i Detections and Comparison with Quiescent S0s and Red Spirals

The Astrophysical Journal
As one type of blue early-type galaxy, the evolutionary history and fate of star-forming lenticular galaxies (S0s) remain elusive. We selected 134 star-forming S0s from the Sloan Digital Sky Survey IV MaNGA survey and found that they have steep and ...
Pei-Bin Chen, Junfeng Wang, Tian-Wen Cao, Mengting Shen, Xiaoyu Xu   +4 more
doaj   +1 more source