Results 71 to 80 of about 662,695 (314)

Abundance ratios in dwarf elliptical galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
We determine abundance ratios of 37 dwarf ellipticals (dEs) in the nearby Virgo cluster. This sample is representative of the early-type population of galaxies in the absolute magnitude range -19.0 < Mr < -16.0. We analyze their absorption line-strength indices by means of index-index diagrams and scaling relations and use the stellar population ...
Jesús Falcón-Barroso, Jesús Falcón-Barroso, S. Sen, S. Sen, Agnieszka Sybilska, Reynier Peletier, Alessandro Boselli, A. Vazdekis, A. Vazdekis, J. J. Mentz, Gerhard Hensler, Cahit Yeşilyaprak, M. den Brok, Joachim Janz, Joachim Janz, Joachim Janz, G. van de Ven, Heikki Salo, Thorsten Lisker, Sanjaya Paudel, Eija Laurikainen, E. Toloba   +21 more
openaire   +10 more sources

Structural properties of discs and bulges of early-type galaxies [PDF]

, 2004
We have used the EFAR sample of galaxies to study the light distributions of early-type galaxies. We decompose the 2D light distribution of the galaxies in a flattened spheroidal component with a Sersic radial light profile and an inclined disc component
Abell, Abell, Andredakis, Balcells, Balcells, Barnes, Bekki, Bekki, Bell, Bender, Bertin, Blanton, Burstein, Burstein, Burstein, Byrd, Caon, Chołoniewski, Cole, Colless, Colless, Combes, Courteau, Cross, D'Onofrio, Dalcanton, David Burstein, de Jong, de Jong, de Jong, de Jong, de Jong, de Vaucouleurs, de Vaucouleurs, Disney, Emsellem, Faber, Falcón-Barroso, Felten, Ferguson, Fish, Freeman, Gary Wegner, Graham, Graham, Gunn, Gutiérrez, Icke, Jørgensen, Kauffmann, Kent, Kormendy, Kormendy, Larson, Luc Simard, MacArthur, Matthew Colless, McGaugh, Mehlert, Metropolis, Mo, Moore, Pfenniger, Press, Quilis, R. P. Saglia, Ravindranath, Rix, Robert McMahan, Roelof S. de Jong, Roger L. Davies, Saglia, Saglia, Schechter, Schlegel, Schmidt, Scorza, Scorza, Shen, Simard, Stanford, Sérsic, Trujillo, Trujillo, Wegner, York   +85 more
core   +4 more sources

Equilibrium Figures inside the Dark-Matter Ring and the Shapes of Elliptical Galaxies

Open Astronomy, 2015
We solve the general problem of the theory of equilibrium figures and analyze two classes of liquid rotating gravitating figures residing inside a gravitating ring or torus.
Kondratyev B. P., Trubitsyna N. G., Kireeva E. N.   +2 more
doaj   +1 more source

Resolving the Extended Stellar Halos of Nearby Galaxies: The Wide-Field PISCeS Survey

Galaxies, 2017
The wide-field Panoramic Imaging Survey of Centaurus and Sculptor (PISCeS) investigates the resolved stellar halos of two nearby galaxies (the spiral NGC 253 and the elliptical Centaurus A, D ∼ 4 Mpc) out to a galactocentric radius of 150 kpc ...
Denija Crnojević
doaj   +1 more source

A binary model for the UV-upturn of elliptical galaxies (MNRAS version) [PDF]

, 2007
The discovery of a flux excess in the far-ultraviolet (UV) spectrum of elliptical galaxies was a major surprise in 1969. While it is now clear that this UV excess is caused by an old population of hot helium-burning stars without large hydrogen-rich ...
A. E. Lynas-Gray, Allard, Anders, Aznar Cuadrado, Boselli, Brassard, Bressan, Bressan, Brown, Brown, Brown, Brown, Brown, Brown, Brown, Bruzual, Bruzual, Burstein, Calzetti, Carraro, Carroll, Charpinet, Chen, Chiosi, Code, Curtis, D'Cruz, Deharveng, Dewi, Donas, Donas, Donas, Dorman, Dorman, Downes, Eggleton, Eggleton, Eggleton, Eggleton, Eggleton, Ferguson, Ferguson, Fukugita, Goldberg, Green, Gregg, Greggio, Gunn, Gunn, Halbwachs, Han, Han, Han, Han, Han, Han, Han, Han, Han, Han, Heacox, Heber, Heber, Heber, Hills, Hjellming, Hodge, Hurley, Hurley, Iben, Iben, Jeffery, Johnson, Kaviraj, Kilkenny, Kjaergaard, Koen, Kroupa, Kurucz, Lee, Lee, Lejeune, Lejeune, Lisker, Lisker, Martin, Maxted, Maxted, Maxted, Mazeh, Mengel, Miller, Mochkovitch, Morales-Rueda, Morales-Rueda, Moran, Napiwotzki, Nesci, O'Connell, Ohl, Oke, Orosz, Ostrov, Paczyński, Paczyński, Paczyński, Park, Ph. Podsiadlowski, Plavec, Podsiadlowski, Podsiadlowski, Pols, Pols, Pols, Pritchet, Rappaport, Ree, Reed, Reimers, Renzini, Rich, Saffer, Saffer, Salim, Sandage, Schawinski, Shatsky, Smith, Soberman, Sweigart, Tantalo, Terlevich, Thejll, Thomas, Tinsley, Tout, Tutukov, Ulla, Van Dyk, Verbunt, Waters, Webbink, Webbink, Williams, Wood, Worthey, Xu, Yi, Yi, Yi, Yi, Yi, Yi, Yi, Z. Han, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhou, Zoccali   +162 more
core   +4 more sources

Properties of Early-Type, Dry Galaxy Mergers and the Origin of Massive Elliptical Galaxies [PDF]

Astrophys.J.636:L81-L84,2006, 2005
The luminosity dependence of kinematical and isophotal properties of elliptical galaxies is investigated using numerical simulations of galaxy merging, combined with semi-analytical models of hierarchical structure formation. Mergers of spiral galaxies as the only formation mechanism for elliptical galaxies can neither reproduce the kinematical and ...
arxiv   +1 more source

The baryonic haloes of elliptical galaxies: radial distribution of globular clusters and diffuse hot gas [PDF]

, 2012
For a sample of nine well-studied giant ellipticals, we compare the projected radial distribution of their red and blue globular cluster (GC) subpopulations with their host galaxy stellar and X-ray surface brightness profiles.
D. Forbes, T. Ponman, E. O’Sullivan
semanticscholar   +1 more source

The Distribution Of Heavy Elements In Spiral And Elliptical Galaxies [PDF]

, 1999
This review recaps significant results as they apply to non-dwarf galaxies, including the Milky Way, spiral disks and bulges, and elliptical and lenticular galaxies. Conclusions that span the galaxy types treated here are as follows.
Arimoto N., Bender R., Bica E., Cameron L. M., Carollo C. M., Carollo C. M., Cuisinier F., Davies R. L., Edmunds M. G., Edvardsson B., Faber S. M., Ferguson A. M. N., Fitzsimmons A., Friel E. D., Gummersbach C. A., Gustafsson B., Gustafsson B., Guy Worthey, Henry R. B. C., Henry R. B. C., Henry R. B. C., Hesser J. E., Howard J. W., Ibata R. A., Kaufer A., Kilian-Montenbruck J., Kingsburgh R. L., Koppen J., Larson R. B., Maciel W. J., Maciel W. J., Maeder A., Matteucci F., Nissen P. E., Pagel B. E. J., Panagia N., Peimbert M., Prantzos N., R. B. C. Henry, Robin A. C., Shaver P. A., Stasinska G., Stasinska G., Thurston T. R., Tinsley B. M., Trimble V., Vila-Costas M. B., Vila-Costas M. B., Vilchez J. M., Weiss A., White S. D. M., Wielen R., Yoshii Y., Zepf S. E.   +53 more
core   +2 more sources

Binary Stellar Population Synthesis Study of Elliptical Galaxies [PDF]

Chin.J.Astron.Astrophys.6:669-679,2006, 2006
We determine relative stellar ages and metallicities mainly for about 80 elliptical galaxies in low and high density environments via the latest binary stellar population (BSP) synthesis model and test a latest hierarchical formation model of elliptical galaxies which adopted the new $\Lambda$CDM cosmology for the first time.
arxiv   +1 more source

On the distribution of galaxy ellipticity in clusters [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
14 pages, 11 figures, Accepted for publication in ...
Rebecca Davies, Ryan C. W. Houghton, Francesco D'Eugenio, Francesco D'Eugenio, E. Dalla Bontà   +4 more
openaire   +5 more sources