Zobrazeno 1 - 10
of 318
pro vyhledávání: '"Aracil B"'
Autor:
Pablo-Marcos, D., Siller, M., Agüero, J., Álvarez-Justel, A., García-Fernández, S., de la Fuente, S. Velasco, Goicoechea, P., Rodríguez-Lozano, J., Ocampo-Sosa, A., Lucas-Fernández, J., Fariñas, M.C., Fernández, J., Fraile-Ribot, P.A., Aracil, B., Oteo-Iglesias, J., Calvo-Montes, J.
Publikováno v:
In Journal of Microbiological Methods April 2023 207
Publikováno v:
Astron.Astrophys. 446 (2006) 791-804
We investigated abundance ratios along the profiles of six high-redshift Damped Lyman-alpha systems, three of them associated with H2 absorption, and derived optical depths in each velocity pixel. The variations of the pixel abundance ratios were fou
Externí odkaz:
http://arxiv.org/abs/astro-ph/0601664
Autor:
Ivanchik, A., Petitjean, P., Varshalovich, D., Aracil, B., Srianand, R., Chand, H., Ledoux, C., Boisse, P.
Publikováno v:
Astron.Astrophys.440:45-52,2005
A new limit on the possible cosmological variation of the proton-to-electron mass ratio \mu=m_p/m_e is estimated by measuring wavelengths of H_2 lines of Lyman and Werner bands from two absorption systems at z_abs = 2.5947 and 3.0249 in the spectra o
Externí odkaz:
http://arxiv.org/abs/astro-ph/0507174
Autor:
Scannapieco, E., Pichon, C., Aracil, B., Petitjean, P., Thacker, R. J., Pogosyan, D., Bergeron, J., Couchman, H. M. P.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 365 (2006) 615-637; Erratum-ibid. 366 (2006) 1118
We study the clustering properties of metals in the intergalactic medium (IGM) as traced by 619 CIV, 81 SiIV, N >= 10^12 cm^-2 and 316 MgII, and 82 FeII N >= 10^11.5 cm^-2 absorption components in 19 high signal-to-noise (60-100 per pixel), high reso
Externí odkaz:
http://arxiv.org/abs/astro-ph/0503001
Publikováno v:
Astron.Astrophys. 417 (2004) 853
Development of fundamental physics relies on the constancy of various fundamental quantities such as the fine structure constant. Detecting or constraining the possible time variations of these fundamental physical quantities is an important step tow
Externí odkaz:
http://arxiv.org/abs/astro-ph/0401094
Autor:
Omont, A., Gilmore, G., Alard, C., Aracil, B., August, T., Baliyan, K., Blommaert, J., Borsenberger, J., Burgdorf, M., Cesarsky, C., de Batz, B., Egan, M., Egret, D., Epchtein, N., Felli, M., Fouque, P., Ganesh, S., Glass, I., Gredel, R., Groenewegen, M., Habing, H. J., Hennebelle, P., Jiang, B., Joshi, U., Messineo, M., Miville-Deschenes, M. A., Moneti, A., Ojha, D., Ortiz, R., Ott, S., Perault, M., Price, S., Robin, A., Schultheis, M., Schuller, F., Simon, G., Testi, L., Teyssier, D., van Loon, J., Wyse, R.
Publikováno v:
Astron.Astrophys. 403 (2003) 975-992
The ISOGAL project is an infrared survey of specific regions sampling the Galactic Plane selected to provide information on Galactic structure,stellar populations,stellar mass-loss and the recent star formation history of the inner disk and Bulge of
Externí odkaz:
http://arxiv.org/abs/astro-ph/0304383
Autor:
Schuller, F., Ganesh, S., Messineo, M., Moneti, A., Blommaert, J. A. D. L., Alard, C., Aracil, B., Miville-Deschenes, M. -A., Omont, A., Schultheis, M., Simon, G., Soive, A., Testi, L.
Publikováno v:
Astron.Astrophys. 403 (2003) 955-974
We present version 1.0 of the ISOGAL-DENIS Point Source Catalogue (PSC), containing more than 100,000 point sources detected at 7 and/or 15 micron in the ISOGAL survey of the inner Galaxy with the ISOCAM instrument on board the Infrared Space Observa
Externí odkaz:
http://arxiv.org/abs/astro-ph/0304309
Autor:
Rollinde, E., Petitjean, P., Pichon, C., Colombi, S., Aracil, B., D'Odorico, V., Haehnelt, M. G.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 341 (2003) 1279
We study the clustering of matter in the intergalactic medium from the Lyman-alpha forests seen in the spectra of pairs or groups of z ~ 2 quasars observed with FORS2 and UVES at the VLT-UT2 Kueyen ESO telescope. The sample consists of five pairs wit
Externí odkaz:
http://arxiv.org/abs/astro-ph/0302145
Publikováno v:
Mon.Not.Roy.Astron.Soc. 343 (2003) L41
Motivated by the relative lack of neutral hydrogen around Lyman Break Galaxies deduced from recent observations, we investigate the properties of the Lyalpha forest around high redshift galaxies. The study is based on improved numerical SPH simulatio
Externí odkaz:
http://arxiv.org/abs/astro-ph/0212126
We present HST STIS observations of four quasar pairs with redshifts 0.84
Externí odkaz:
http://arxiv.org/abs/astro-ph/0205352