Observations across nearby spiral bulges by Sansom, A, Loubser, S, Sánchez-Blázquez, P, Söchting, I

“…New Gemini long-slit observations will be used to derive stellar population ages and histories across 30 bulges. …”

Anisotropic mass segregation in rotating globular clusters by Szolgyen, A, Meiron, Y, Kocsis, B

“…We investigate the internal dynamics of anisotropic, rotating globular clusters with a multimass stellar population by performing new direct N-body simulations. …”

Old elliptical galaxies at z similar to 1.5 and the Kormendy relation by Waddington, I, Windhorst, R, Cohen, S, Dunlop, J, Peacock, J, Jimenez, R, McLure, R, Bunker, A, Spinrad, H, Dey, A, Stern, D

“…We find a rest-frame U - B colour gradient that is significantly larger than that observed in field ellipticals at z ≤ 1, implying a stellar population of mixed metallicity (1-3 Z⊙) that formed in a high-redshift rapid burst. …”

Neutral hydrogen in nearby elliptical and lenticular galaxies: the continuing formation of early-type galaxies by Morganti, R, de Zeeuw, P, Oosterloo, T, McDermid, R, Krajnovic, D, Cappellari, M, Kenn, F, Weijmans, A, Sarzi, M

“…We do not find a clear trend between the presence of H I and the global age of the stellar population or the global dynamical characteristics of the galaxies. …”

Absorption-line strengths of 18 late-type spiral galaxies observed with SAURON by Ganda, K, Peletier, R, McDermid, R, Falcon-Barroso, J, de Zeeuw, P, Bacon, R, Cappellari, M, Davies, R, Emsellem, E, Krajnovic, D, Kuntschner, H, Sarzi, M, van de Ven, G

“…The SAURON spectral range allows the measurement of the Lick/IDS indices Hβ, Fe5015 and Mgb, which can be used to estimate the stellar population parameters. We present here the two-dimensional line strength maps for each galaxy. …”

Early-type galaxies in different environments: an H I view by Oosterloo, T, Morganti, R, Crocker, A, Jutte, E, Cappellari, M, de Zeeuw, T, Krajnovic, D, McDermid, R, Kuntschner, H, Sarzi, M, Weijmans, A

“…The relation between H-i and stellar population is complex. The few galaxies with a significant young sub-population all have inner gas discs, but for the remaining galaxies there is no trend between stellar population and H-i properties. …”

Modeling the Radial Color Profile of M31 by Semionov D., Stonkutė R., Vansevičius V.

“…We present a preliminary study of a fragment of the radial color profile of the spiral galaxy M 31 in terms of 2-D model accounting for internal extinction in the disk. The two stellar population disk model was assumed. The old dust-free disk population is represented by the double exponential law, and the young disk population, well mixed with the dust, resides in spiral arms of various scale-heights. …”
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Astrophysical Information from Objective Prism Digitized Images: Classification with an Artificial Neural Network by Bratsolis Emmanuel

“…<p/> <p>Stellar spectral classification is not only a tool for labeling individual stars but is also useful in studies of stellar population synthesis. Extracting the physical quantities from the digitized spectral plates involves three main stages: detection, extraction, and classification of spectra. …”
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Looking for tidal streams around Galactic globular clusters by Martínez-Delgado D., Carballo-Bello J.A.

“…If this hypothesis is true, these systems might be surrounded by a distinct and still detectable stellar population. We have carried out a systematic observation of Galactic globulars covering the galactocentric distance range 10 < RGC< 40 kpc in both hemispheres. …”
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Origins of the thick disk of the galaxy as traced by metal-poor stars selected from RAVE by Ruchti G.R.

“…Models of the formation of the thick disk of the Milky Way Galaxy make specific predictions about the chemical abundance properties of the metal-weak (and oldest) stellar population in the thick disk. We have undertaken the study of the elemental abundances and kinematic properties of a sample of 319 candidate metal-poor thick-disk stars selected from the RAVE spectroscopic survey of bright stars. …”
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Study photometric properties of spiral galaxy NGC 4448 using CCD camera with multiband filters by Sinan H. Ali

“…The structure and composition of the stellar population in the surface brightness galaxy NGC 4448 was studied using BVR CCD photometry. …”
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BVR CCD Photometric observation analysis of spiral galaxy Ic 467 by Sinan H. Ali

“… The structure and composition of the stellar population in the surface brightness galaxy Ic 467 is studied using BVR CCD photometry. …”
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Origin and structure of the Galactic disc(s) by Schoenrich, R, Binney, J

“…Although the simulation's star formation rate declines monotonically from its unique peak and no merger or tidal event ever takes place, the model replicates all known properties of a thick disc, as well as matching special features of the local stellar population such as a metal-poor extension of the thin disc that has high rotational velocity. …”

Origin and structure of the Galactic disc(s) by Schoenrich, R, Binney, J

“…Although the simulation's star-formation rate declines monotonically from its unique peak and no merger or tidal event ever takes place, the model replicates all known properties of a thick disc, as well as matching special features of the local stellar population such as a metal-poor extension of the thin disc that has high rotational velocity. …”

HST UV Spectroscopy of the Dwarf Starburst Galaxy Pox 186 by Noah S. J. Rogers, Claudia M. Scarlata, Evan D. Skillman, Nathan R. Eggen, Anne E. Jaskot, Vihang Mehta, John M. Cannon

“…We present deep ultraviolet (UV) spectroscopy of Pox 186 to study its stellar population and ionization conditions and to compare these conditions to other local starburst galaxies. …”
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Current Star Formation in the Outer Rings among Early-type Disk Galaxies by Kostiuk I. P., Sil’chenko O. K.

“…We found that current star formation, with the mean age of the young stellar population of less than 200 Myr, is present in about a half of all ‘pure’ rings; and within the pseudorings it is observed almost in all cases.…”
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Submillimeter Galaxies as Tracers of Mass Assembly at Large M by Genzel, R, Baker, A, Ivison, R, Bertoldi, F, Blain, A, Chapman, S, Cox, P, Davies, R, Eisenhauer, F, Frayer, D, Greve, T, Lehnert, MD, Lutz, D, Nesvadba, N, Neri, R, Omont, A, Seitz, S, Smail, I, Tacconi, L, Tecza, M, Thatte, N, Bender, R

“…Here we present results from (a) a survey of SMGs' molecular line emission, which has confirmed Keck optical redshifts and revealed their high gas and dynamical masses; and (b) a detailed case study of the rest-frame optical emission from one SMG, which has revealed its high metallicity and old stellar population. We infer a high z~2.7 comoving number density of galaxies with baryonic masses greater than 10^11 solar masses; this is not accounted for in current semi-analytic models of galaxy evolution.…”

The Shapes and Ages of Elliptical Galaxies by Jong, R, Davies, R

“…We find that disky galaxies have higher H beta indices. Stellar population synthesis models show that the H beta line is a good age indicator, hence disky galaxies tend to have younger mean ages than boxy galaxies. …”

THE STELLAR LUMINOSITY FUNCTION IN THE BULGE OF M31 by Davies, R, Frogel, J, Terndrup, D

“…There is no compelling reason to invoke a stellar population for the bulge of M31 that differs from that of the bulge of our own Galaxy.…”

The shapes and ages of elliptical galaxies by deJong, R, Davies, R

“…We find that discy galaxies have higher Hβ indices. Stellar population synthesis models show that the Hβ line is a good age indicator, hence discy galaxies tend to have lower mean ages than boxy galaxies. …”