Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Omar Lopez-Cruz"'
We construct from first principles a general relativistic approach to study Schwarzschild black hole (BH) rotation curves and estimate the mass-to-distance ratio of the active galactic nucleus of NGC 4258 in terms of astrophysical observable quantiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::943d83002694f40251dd5aa023e0762a
http://arxiv.org/abs/2012.05487
http://arxiv.org/abs/2012.05487
Publikováno v:
International Journal of Theoretical Physics. 56:1558-1564
Diverse measurements indicate that entropy grows as the universe evolves, we analyze from a quantum point of view plausible scenarios that allow such increase.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bc0a04ca04b6a8d91ff5e5350185f83
https://doi.org/10.1007/s10773-017-3295-9
https://doi.org/10.1007/s10773-017-3295-9
Autor:
Wayne A. Barkhouse, Sandanuwan P. Kalawila Vithanage, Gihan L. Ipita Kaduwa Gamage, Omar Lopez-Cruz, Nathan L. Carlson, Cody Rude, Madina Sultanova
We present the first measurement of the globular cluster population surrounding the elliptical galaxy J07173724+3744224 (z=0.1546). This galaxy is located in the foreground in the field-of-view of the Hubble Space Telescope (HST) Frontier Fields obse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ed78d2e9a79626700f7c30746258d5e
Autor:
Juan Pablo Torres-Papaqui, Hector Ibarra-Medel, Mark Birkinshaw, Wayne A. Barkhouse, Omar Lopez-Cruz, Diana M Worrall, C. Añorve, Veronica Motta
Publikováno v:
López-Cruz, O, Añorve, C, Birkinshaw, M, Worrall, D M, Ibarra-Medel, H J, Barkhouse, W A, Torres-Papaqui, J P & Motta, V 2014, ' The Brightest Cluster Galaxy in Abell 85 : The Largest Core Known so far ', Astrophysical Journal Letters, vol. 795, no. 2, L31 . https://doi.org/10.1088/2041-8205/795/2/L31
We have found that the brightest cluster galaxy (BCG) in Abell~85, Holm 15A, displays the largest core so far known. Its cusp radius, $r_{\gamma} = 4.57 \pm 0.06$ kpc ($4.26^{\prime\prime}\pm 0.06^{\prime\prime}$), is more than 18 times larger than t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15b480246b3300bd8e69b6dab3b6ccde
http://arxiv.org/abs/1405.7758
http://arxiv.org/abs/1405.7758
Publikováno v:
The Astrophysical Journal. 477:L17-L20
Two-dimensional surface photometry derived from Hubble Space Telescope imaging is presented for a sample of 225 early-type galaxies (assumed to be cluster members) in the fields of nine clusters at redshifts 0.17 < z < 1.21. The 94 luminous elliptica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20b554f90e517a3dea3ca2d905fac661
https://doi.org/10.1086/310508
https://doi.org/10.1086/310508
Publikováno v:
The Astrophysical Journal. 475:L97-L101
From a total sample of 45 Abell clusters observed by the Einstein X-ray observatory, we present the results on the galaxy luminosity function (LF) for a group of seven clusters that were identified by the morphology of their LFs. The LFs were derived
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b632b50a3f5b1b2975d32dea17e0539
https://doi.org/10.1086/310474
https://doi.org/10.1086/310474
Publikováno v:
The Astrophysical Journal. 465:L103-L106
Two-dimensional surface photometry is presented for a sample of 351 late-type galaxies with 0.12 < z < 0.65. These objects are drawn from the Canadian Network for Observational Cosmology (CNOC) cluster survey and are either spectroscopically confirme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3139101c2bb4c49c49de2a7f97f669f7
https://doi.org/10.1086/310144
https://doi.org/10.1086/310144
Publikováno v:
The Astrophysical Journal. 464:L63-L66
Two-dimensional surface photometry has been done for 166 early-type galaxies (bulge/total luminosity B/T > 0.6) in three fields of the Canadian Network for Observational Cosmology (CNOC) cluster survey. These galaxies are either spectroscopically con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af817a8524afb2caf81a6293445ba2db
https://doi.org/10.1086/310091
https://doi.org/10.1086/310091
Publikováno v:
Universidad Nacional Autónoma de México
UNAM
Redalyc-UNAM
Revista Mexicana de Astronomía y Astrofísica (México) Vol.39
UNAM
Redalyc-UNAM
Revista Mexicana de Astronomía y Astrofísica (México) Vol.39
"We present a critical review on the paper ¿Densities, Potentials and related functions for a spherical reduced galaxy¿ by A. Poveda, R. Iturriaga, and I. Orozco published in 1960 in the Bolet´¿n de los Observatorios de Tonantzintla y Tacubaya (B
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6c532580f06bb78517479f3850d6f24d
http://www.redalyc.org/articulo.oa?id=57120832025
http://www.redalyc.org/articulo.oa?id=57120832025
Publikováno v:
Proceedings of the International Astronomical Union. 11:5-5
We investigate the alignment effect of red-sequence dwarf galaxies using a sample of 121 low-redshift galaxy clusters and cluster galaxies selected from the HST Frontier Fields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee26c79328a5497b80264f000112f515
https://doi.org/10.1017/s174392131501008x
https://doi.org/10.1017/s174392131501008x