stellar content
Elliptical galaxies : structure, stellar content, and evolution
... Early–type galaxies form a homogeneous population both in their structure (luminous and dynamical) and stellar content. The bivariate correlations called the Fundamental Plane (Dressler et al. 1987; ...
355
Looking deep into the Rosette Nebula's heart : the (sub)stellar content of the massive young cluster NGC 2244
... The stellar content of NGC 2244 has been extensively studied from X-ray to mid-infrared ( MIR ) wavelengths. The most sensitive X-ray data to date are the Chandra observations published in Wang et al. ( ...
22
CCD photometry and the stellar content of the central region of IC 1805
... When the in the read noise example, if 16 bias frames an mean bias is bias frame is 1/16 subtracted from will choice of average V1-0625^ = mean or = 6, following: a single bias each pixe[r] ...
74
The VLT LEGA C spectroscopic survey : the physics of galaxies at a lookback time of 7 Gyr
... the stellar ages and metallicities is crucial to understand the star formation history, and stellar velocity dispersions are a crucial element in quantifying the dynamical scaling relations such as the ...
12
Surot Madrid, Francisco Ricardo (2018): On the age of the Milky Way bulge stellar population. Dissertation, LMU München: Fakultät für Physik
... The Milky Way (MW) is an ordinary spiral galaxy not much different from its nearest big neighbor, Andromeda, and much like uncountable other spiral galaxies in the Universe. However, it is only in the MW that we are able ...
133
Clues from stellar catastrophes
... ere is mounting observational evidence that most galactic nuclei host both super- massive black holes (SMBHs) and young populations of stars. With an abundance of massive stars, core-collapse supernovae are expected in ...
173
SPOTTED STARS AS CEPHEID IMPOSTORS OBSERVED WITH K2
... This star also exhibits several (at least six) flaring events during the 78 days of observations, the major ones of which seem to concentrate around the same phase ( ≈ 0.2), which is a fairly common phenomenon on flaring ...
5
Two new long-period giant planets from the McDonald Observatory planet search and two stars with long-period radial velocity signals related to stellar activity cycles
... on stellar parameter space was compared with that of stellar interior and evolutionary model ...measured stellar parameters and weighted by the observational ...
20
Extended Structures in Globular Clusters
... form protogalaxies, which themselves merge into larger systems, and so on. Stellar halos around large galaxies are thought to arise as a by-product of these processes (e.g., Bullock & Johnston 2005; Cooper et ...
148
Studies in stellar structure and evolution
... Further evolutionary stu d ies by Sweigart and Gross (1978) o f red -g ian t evolutionary sequences enabled C aloi, C astellan i and Tornambe (1978) to construct 'evolu tion a ry ' zero-age HB sequences, where M^ is ...
233
Stellar Feedback, AGN Feedback and Fluid Microphysics in Galaxy Evolution
... and stellar feedback from supernovae, stellar mass-loss, and radiation, enabling a truly “live” response of star formation and the multi-phase ISM to cooling flows; we used a hierarchical super-Lagrangian ...
199
The VIMOS Public Extragalactic Redshift Survey (VIPERS) : galaxy segregation inside filaments at z ≃ 0 7
... and stellar mass is observed (left column), with more massive galaxies being closer to filaments as indicated by the shift in the median values of the two PDFs (downward ...
7
Membership Determination of van den Bergh Open Clusters vdB92, vdB146 (NGC 7129) and vdB150
... the stellar density is applied to find the kinematic parameters and stellar membership in the region of the open clusters vdB92, vdB146 (NGC 7129) and ...
18
The stellar kinematics and populations of boxy bulges: cylindrical rotation and vertical gradients
... In our search of the literature, we found no observations of the absence of cylindrical rotation in a boxy bulge. One of the goals of the present targeted study of boxy bulges is to determine whether this is confirmation ...
10
Magnetohydrostatic modelling of stellar coronae
... In this paper, we have presented, analysed and demonstrated a MHS model for stellar coronae. The model extends the popular potential field model to allow for the magnetic field to contain current and couple to the ...
8
Stellar magnetic activity and exoplanets
... vective envelope would have been synchronised, but the interior radiative core of the star would still be rotating at a di ff erent rate. The shear created by di ff erent rotation rates between the radiative interior and ...
6
Simulating stellar winds in AMUSE
... which stellar wind ...the stellar dynamics to the hydrodynamics gravitationally, bridge (Fujii et ...The stellar properties on which the wind is based will generally be calculated using a stel- lar ...
15
Spectropolarimetry as a probe of stellar winds
... It has since been shown th a t pure ro ta tio n is generally insufficient to produce an e q u a to ria l envelope. In addition, S tru v e’s m odel cannot account for th e variability seen in m any Be sta rs. U ltraviolet ...
260
Reevaluating old stellar populations
... that stellar multiple systems are known to exist in such large numbers in the local Universe suggests that they should not be ignored while constructing ...metal content (in partic- ular the density of CO ...
21
Transits and starspots in the WASP 6 planetary system
... By determining λ and ψ of the planetary system, it is possible to begin to understand the primary process in the dynamical evolution of the system. The RM effect can be used to ascertain a value for λ . One limitation of ...
10