Results 31 to 40 of about 53,348 (269)

Fundamental Plane of Elliptical Galaxies in f(R) Gravity: The Role of Luminosity

Atoms, 2018
The global properties of elliptical galaxies are connected through the so-called fundamental plane of ellipticals, which is an empirical relation between their parameters: effective radius, central velocity dispersion and mean surface brightness within ...
Vesna Borka Jovanović, Predrag Jovanović, Duško Borka, Salvatore Capozziello   +3 more
doaj   +1 more source

Evolution of the Color-Magnitude Relation in Galaxy Clusters at z ~1 from the ACS Intermediate Redshift Cluster Survey [PDF]

, 2008
We apply detailed observations of the Color-Magnitude Relation (CMR) with the ACS/HST to study galaxy evolution in eight clusters at z~1. The early-type red sequence is well defined and elliptical and lenticular galaxies lie on similar CMRs.
Arjen Van der Wel, Baldry, Balogh, Bell, Benítez, Bernardi, Blakeslee, Blakeslee, Blakeslee, Bower, Brad P. Holden, Buser, Carlberg, Couch, De Lucia ., Demarco, Desai, Dressler ., Ellis, Ettori, Faber, Ford, Gal, Gal, Gal, Garth D. Illingworth, Giavalisco, Goto, Hogg, Holden, Holden, Holden, Holden, Holland C. Ford, Homeier, Häussler ., Högbom, James G. Bartlett, Jee, Jee, Jee, John P. Blakeslee, Kelson, Kelson, Kocevski, Kodama, Lubin, López-Cruz, Marc Postman, Marijn Franx, Marleau, Maughan, Maíz Apellániz, McIntosh, McIntosh, Mei, Mei, Menci, Moran, Moran, Myungkook J. Jee, Nicole L. Homeier, Overzier, Peng, Pentericci, Peter, Piero Rosati, Poggianti, Poggianti, Postman, Press, Roderik Overzier, Rosati, Rosati ., Schlegel, Scodeggio, Simona Mei, Smith, Spergel, Stanford, Stanford, Stanford, Steidel, Steidel, Tanaka, Thomas, Tran, Tran, van der Wel, van Dokkum, van Dokkum, van Dokkum, van Dokkum, Venemans, Wake ., Willmer, Wu ., York, Zirm   +98 more
core   +4 more sources

The habitability of large elliptical galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT Based on numbers of stars, supernova rates, and metallicity, a prior study concluded that large elliptical galaxies contain up to 10 000 times more habitable planets than the Milky Way and are thus the ‘cradles of life’. Using the results of their model and taking into account galactic number distributions and supernova rates, I
openaire   +2 more sources

The Hβ Index and the Ages of Old Stellar Systems [PDF]

Journal of Astronomy and Space Sciences, 1998
The Hβ and some metal line indices, such as Mg2, Fe52, Fe53 of single-age and single-metallicity populations are computed based on the method of evolutionary population synthesis, with careful consideration of the variation of the horizontal-branch ...
Seok-Jin Yoon, Hyun-Chul Lee, Young-Wook Lee   +2 more
doaj  

Cosmicflows-4

The Astrophysical Journal, 2023
With Cosmicflows- 4, distances are compiled for 55,877 galaxies gathered into 38,065 groups. Eight methodologies are employed, with the largest numbers coming from the correlations between the photometric and kinematic properties of spiral galaxies (TF ...
R. Brent Tully, Ehsan Kourkchi, Hélène M. Courtois, Gagandeep S. Anand, John P. Blakeslee, Dillon Brout, Thomas de Jaeger, Alexandra Dupuy, Daniel Guinet, Cullan Howlett, Joseph B. Jensen, Daniel Pomarède, Luca Rizzi, David Rubin, Khaled Said, Daniel Scolnic, Benjamin E. Stahl   +16 more
doaj   +1 more source

Alignment of galaxies relative to their local environment in SDSS-DR8

, 2016
We study the alignment of galaxies relative to their local environment in SDSS-DR8 and, using these data, we discuss evolution scenarios for different types of galaxies. We defined a vector field of the direction of anisotropy of the local environment of
Einasto, M., Hirv, A., Pelt, J., Saar, E., Tago, E., Tamm, A., Tempel, E.   +6 more
core   +1 more source

On the relation between circular velocity and central velocity dispersion in high and low surface brightness galaxies [PDF]

, 2005
In order to investigate the correlation between the circular velocity Vc and the central velocity dispersion of the spheroidal component sigma_c, we analyzed these quantities for a sample of 40 high surface brightness disc galaxies (hereafter HSB), 8 ...
A. Pizzella, Beijersbergen M., Carollo C. M., Corsini E. M., de Blok W. J. G., E. Dalla Bonta, E. M. Corsini, F. Bertola, Guthrie B. N. G., Jorgensen I., L. Coccato, M. Sarzi, Persic M., Sandage A.   +13 more
core   +4 more sources

The ‘Photometric Plane’ of elliptical galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
To appear in MNRAS.
openaire   +3 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

Dust in Hot Plasma of Nearby Dusty Elliptical Galaxies Observed with the Spitzer Space Telescope [PDF]

, 2006
We report on mid- and far-IR Spitzer observations of 7 nearby dusty elliptical galaxies by using the Multiband Imaging Photometer (MIPS) and Infrared Spectrograph (IRS).
Kaneda, H., Kitayama, T., Okada, Y., Onaka, T., Sakon, I.   +4 more
core   +2 more sources