Results 121 to 130 of about 507,375 (292)

A SuperMassive Black Hole Fundamental Plane for Ellipticals [PDF]

, 2007
We obtain the coefficients of a new fundamental plane for supermassive black holes at the centers of elliptical galaxies, involving measured central black hole mass and photometric parameters which define the light distribution.
Ajit Kembhavi, Ferrarese L., Jorgensen I., Kormendy J., Shapiro K. L., Silk J., Sudhanshu Barway   +6 more
core   +2 more sources

Evidence for spin alignment of spiral and elliptical/S0 galaxies in filaments [PDF]

, 2012
Galaxies are not distributed randomly in the cosmic web but are instead arranged infilaments and sheets surrounding cosmic voids. Observationally there is still no con-vincing evidence of a link between the properties of galaxies and their host structures.
E. Tempel, E. Tempel, R. Stoica, E. Saar, E. Saar   +4 more
semanticscholar   +1 more source

Volume measurement of microparticles using SEM photogrammetry and 3‐D reconstruction

Meteoritics &Planetary Science, Volume 60, Issue 5, Page 1227-1235, May 2025.
Abstract In this paper, we introduce a method for volume measurement of microparticles that includes scanning electron microscope photogrammetry with 3‐D model construction. Our results show that our method limits the volume uncertainty to ±10%, which is a significant improvement compared to previous methods (which likely overestimated volume by 100 ...
Y. Zheng, X. Yang, M. Valdes, A. M. Davis, P. R. Heck   +4 more
wiley   +1 more source

The V_c-sigma_c relation in high and low surface brightness galaxies

, 2004
We investigate the relation between the asymptotic circular velocity, V_c, and the central stellar velocity dispersion, sigma_c, in galaxies. We consider a new sample of high surface brightness spiral galaxies (HSB), low surface brightness spiral ...
Bertola, F., Bonta`, E. Dalla, Coccato, L., Corsini, E. M., Pizzella, A., Sarzi, M.   +5 more
core   +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

Spectroscopy and photometry of elliptical galaxies. I: a new distance estimator

, 1987
On presente des donnees cinematiques et photometriques concernant 97 galaxies elliptiques, membres de six amas ...
A. Dressler, D. Lynden-Bell, D. Burstein, R. Davies, S. Faber, R. Terlevich, G. Wegner   +6 more
semanticscholar   +1 more source

Polytropic dark haloes of elliptical galaxies [PDF]

, 2010
The kinematics of stars and planetary nebulae in early-type galaxies provide vital clues to the enigmatic physics of their dark matter haloes. We fit published data for 14 such galaxies using a spherical, self-gravitating model with two components: (i) a
C. Saxton, Ignacio Ferreras Mullard Space Science Laboratory, U. London   +2 more
semanticscholar   +1 more source

Genomic Insights into Post‐Domestication Expansion and Selection of Body Size in Ponies

Advanced Science, Volume 12, Issue 16, April 24, 2025.
The authors’ research delves into the history of ponies by assembling a pony genome and integrating horse genomes. This unveils genetic connections between Asian and European pony breeds. Cis‐regulatory elements of key genes impacting body size are also identified.
Xingzheng Li, Zihao Wang, Min Zhu, Binhu Wang, Shaohua Teng, Jing Yan, Haoyu Wang, Pengxiang Yuan, Shuwei Cao, Xiaolu Qu, Zhen Wang, Kai Zhan, Md. Panir Choudhury, Xintong Yang, Qi Bao, Sang He, Lei Liu, Pengju Zhao, Jicai Jiang, Hai Xiang, Lingzhao Fang, Zhonglin Tang, Yuying Liao, Guoqiang Yi   +23 more
wiley   +1 more source

Galaxy Formation from the Primordial Black Holes

EPJ Web of Conferences, 2017
Supermassive black hole (SMBH) of size MBH = 106-10M⊙ is common in the Universe and it defines the center of the galaxy. A galaxy and the SMBH are generally thought to have co-evolved.
Morikawa Masahiro
doaj   +1 more source

Giant Halos in Dwarf Irregular Galaxies vs. Dwarf Elliptical Galaxies

, 2005
We present a discovery of a giant stellar halo in NGC 6822, a dwarf irregular galaxy in the Local Group. This halo is mostly made of old red giants, showing striking features: 1) it is several times larger than the main body of the galaxy seen in the ...
Hwang, Narae, Lee, Myung Gyoon
core   +1 more source