Results 71 to 80 of about 438,137 (232)

Evolution of Star Clusters within Galaxies Using Self-consistent Hybrid Hydro/N-body Simulations

The Astrophysical Journal
We introduce a GPU-accelerated hybrid hydro/ N -body code ( Enzo-N ) designed to address the challenges of concurrently simulating star clusters and their parent galaxies.
Yongseok Jo, Seoyoung Kim, Ji-hoon Kim, Greg L. Bryan   +3 more
doaj   +1 more source

Star Cluster Candidates in M81

, 2010
We present a catalog of extended objects in the vicinity of M81 based a set of 24 Hubble Space Telescope Advanced Camera for Surveys (ACS) Wide Field Camera (WFC) F814W (I-band) images. We have found 233 good globular cluster candidates; 92 candidate HII
Brian McLeod, Chandar, Chandar, Chandar, de Vaucouleurs, Driver, Freedman, Jay Strader, Jean P. Brodie, John P. Huchra, Julie B. Nantais, Okoń, Riess, Schröder   +13 more
core   +1 more source

Is Earendel a Star Cluster?: Metal-poor Globular Cluster Progenitors at z ∼ 6

The Astrophysical Journal Letters
The strongly lensed z  ∼ 6 Sunrise galaxy offers an incredible opportunity to investigate star formation in the early Universe on parsec or smaller scales.
Massimo Pascale, Liang Dai, Brenda L. Frye, Aliza G. Beverage   +3 more
doaj   +1 more source

NGC 2401: A template of the Norma-Cygnus Arm's young population in the Third Galactic Quadrant

, 2005
Based on a deep optical CCD (UBV(RI)_C) photometric survey and on the Two-Micron All-Sky-Survey (2MASS) data we derived the main parameters of the open cluster NGC 2401. We found this cluster is placed at 6.3 $\pm$ 0.5 kpc (V_O - M_V = 14.0 \pm 0.2) from
A. Moitinho, Barbier, Baume, Baume, Carraro, Carraro, Carraro, Chalonge, Chalonge, Cidale, Cousins, Cousins, Dean, Dias, Fabregat, G. Baume, G. Carraro, G. Solivella, Georgelin, Giorgi, Giorgi, Girardi, Høg, Jaschek, Kaltcheva, Koornneef, Lyngå, Martin, May, Mermilliod, Meynet, Moitinho, Moitinho, Moitinho, Moitinho, Momany, R. A. Vázquez, Russeil, S. Villanova, Scalo, Scalo, Scalo, Schmidt-Kaler, Stephenson, Sujatha, Vogt, Zacharias, Zorec, Zorec   +48 more
core   +3 more sources

The star cluster - field star connection in nearby spiral galaxies. II. Field star and cluster formation histories and their relation

, 2011
Recent studies have started to cast doubt on the assumption that most stars are formed in clusters. Observational studies of field stars and star cluster systems in nearby galaxies can lead to better constraints on the fraction of stars forming in ...
Larsen, Soeren, Silva-Villa, Esteban
core   +2 more sources

Truncated Star Formation and Ram Pressure Stripping in the Coma Cluster

The Astrophysical Journal
We use 45 galaxies from the Mapping Nearby Galaxies at Apache Point Observatory survey to study the physical drivers of star formation quenching in the Coma Cluster.
Ariel O. Broderick, Ian D. Roberts, Michael J. Hudson   +2 more
doaj   +1 more source

Three Concurrent Phases of Massive-Star Evolution in a Pulsar-Wind Nebula [PDF]

, 2010
The nebular material associated the the SNR G54.1+0.3 (hereafter G54) contains the the first reported instance of triggered star formation in the immediate vicinity of a Pulsar and its Wind Nebula (PWN). With 2MASS and Spitzer colors and followup near-IR
Hillier, D. John, Lang, Cornelia, Mauerhan, Jon, Morris, Patrick, Van Dyk, Schuyler   +4 more
core  

The Tully-Fisher relation of intermediate redshift field and cluster galaxies from Subaru spectroscopy

, 2005
We have carried out spectroscopic observations in 4 cluster fields using Subaru's FOCAS multi-slit spectrograph and obtained spectra for 103 bright disk field and cluster galaxies at $0.06 \le z \le 1.20$.
A. Aragon-Salamanca, B. Milvang-Jensen, C. Ikuta, N. Arimoto, O. Nakamura, Quilis, S. P. Bamford   +6 more
core   +1 more source

SPYGLASS. VI. Feedback-driven Star Formation in the Circinus Complex

The Astrophysical Journal
Young associations provide a record that traces the star formation process, and the youngest populations connect progenitor gas dynamics to the resulting stellar populations.
Ronan Kerr, Juan P. Farias, Lisa Prato, Travis A. Rector, Joshua S. Speagle, Adam L. Kraus   +5 more
doaj   +1 more source

Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping

Galaxies, 2016
Previous works have shown that a dense cluster environment affects satellite galaxy properties and accelerates or truncates their evolutionary processes.
Paulina Troncoso Iribarren, Nelson Padilla, Sergio Contreras, Silvio Rodriguez, Diego García-Lambas, Claudia del P. Lagos   +5 more
doaj   +1 more source