Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Koopmans LVE"'
Autor:
Ghosh, A, Mertens, F, Bernardi, G, Santos, MG, Kern, NS, Carilli, CL, Grobler, TL, Koopmans, LVE, Jacobs, DC, Liu, A, Parsons, AR, Morales, MF, Aguirre, JE, Dillon, JS, Hazelton, BJ, Smirnov, OM, Gehlot, BK, Matika, S, Alexander, P, Ali, ZS, Beardsley, AP, Benefo, RK, Billings, TS, Bowman, JD, Bradley, RF, Cheng, C, Chichura, PM, Deboer, DR, Acedo, EDL, Ewall-Wice, A, Fadana, G, Fagnoni, N, Fortino, AF, Fritz, R, Furlanetto, SR, Gallardo, S, Glendenning, B, Gorthi, D, Greig, B, Grobbelaar, J, Hickish, J, Josaitis, A, Julius, A, Igarashi, AS, Kariseb, M, Kohn, SA, Kolopanis, M, Lekalake, T, Loots, A, MacMahon, D, Malan, L, Malgas, C, Maree, M, Martinot, ZE, Mathison, N, Matsetela, E, Mesinger, A, Neben, AR, Nikolic, B, Nunhokee, CD, Patra, N, Pieterse, S, Razavi-Ghods, N, Ringuette, J, Robnett, J, Rosie, K, Sell, R, Smith, C, Syce, A, Tegmark, M, Thyagarajan, N, Williams, PKG, Zheng, H
Publikováno v:
Monthly Notices of the Royal Astronomical Society, vol 495, iss 3
The key challenge in the observation of the redshifted 21-cm signal from cosmic reionization is its separation from the much brighter foreground emission. Such separation relies on the different spectral properties of the two components, although, in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::efff53d71fef6e834d6ce41bd0c6b90d
https://www.repository.cam.ac.uk/handle/1810/305940
https://www.repository.cam.ac.uk/handle/1810/305940
Autor:
Bonvin, V, Courbin, F, Suyu, SH, Marshall, PJ, Rusu, CE, Sluse, D, Tewes, M, Wong, KC, Collett, T, Fassnacht, CD, Treu, T, Auger, MW, Hilbert, S, Koopmans, LVE, Meylan, G, Rumbaugh, N, Sonnenfeld, A, Spiniello, C
We present a new measurement of the Hubble Constant H0 and other cosmological parameters based on the joint analysis of three multiply imaged quasar systems with measured gravitational time delays. First, we measure the time delay of HE 0435-1223 fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______109::f10735c47c1e5666e48d67931aa622a5
https://www.repository.cam.ac.uk/handle/1810/296643
https://www.repository.cam.ac.uk/handle/1810/296643
Autor:
Koopmans, LVE, Pritchard, J, Mellema, G, Abdalla, F, Aguirre, J, Ahn, K, Barkana, R, Van Bemmel, I, Bernardi, G, Bonaldi, A, Others
Publikováno v:
Proceedings of Sciencec
Concerted effort is currently ongoing to open up the Epoch of Reionization (EoR) (z∼15-6) for studies with IR and radio telescopes. Whereas IR detections have been made of sources (Lyman-α emitters, quasars and drop-outs) in this redshift regime i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1032::fbbcb833814074397fc7c1355a34b550
http://hdl.handle.net/10044/1/90715
http://hdl.handle.net/10044/1/90715
Autor:
Stern, D, Van Dokkum, PG, Nugent, P, Sand, DJ, Ellis, RS, Sullivan, M, Bloom, JS, Frail, DA, Kneib, JP, Koopmans, LVE, Treu, T
Publikováno v:
Stern, D; Van Dokkum, PG; Nugent, P; Sand, DJ; Ellis, RS; Sullivan, M; et al.(2004). Discovery of a transient U-band dropout in a Lyman break survey: A tidally disrupted star at z = 3.3?. Astrophysical Journal, 612(2 I), 690-697. doi: 10.1086/422744. UCLA: Retrieved from: http://www.escholarship.org/uc/item/5757j746
Astrophysical Journal, 612(2), 690-697. IOP PUBLISHING LTD
Astrophysical Journal, vol 612, iss 2 I
Astrophysical Journal, 612(2), 690-697. IOP PUBLISHING LTD
Astrophysical Journal, vol 612, iss 2 I
We report the discovery of a transient source in the central regions of galaxy cluster A267. The object, which we call "PALS-1,'' was found in a survey aimed at identifying highly magnified Lyman break galaxies in the fields of intervening rich clust
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::761badc9d063b658d729c593ecba8d3f
http://www.escholarship.org/uc/item/5757j746
http://www.escholarship.org/uc/item/5757j746
Autor:
Stern, Daniel, van Dokkum, PG, Nugent, Peter, Sand, DJ, Ellis, RS, Sullivan, Mark, Bloom, JS, Frail, DA, Kneib, J-P, Koopmans, LVE, Treu, Tommaso
Publikováno v:
The Astrophysical Journal, vol 612, iss 2
We report the discovery of a transient source in the central regions of galaxy cluster A267. The object, which we call "PALS-1," was found in a survey aimed at identifying highly magnified Lyman break galaxies in the fields of intervening rich cluste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::f3e9bcaa4e22708bf13e3a980fa92a7e
https://escholarship.org/uc/item/5757j746
https://escholarship.org/uc/item/5757j746
Autor:
Koopmans, LVE, Blandford, RD
Publikováno v:
Physics today, 57(6), 45-51
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::1f73fe9e584cf58497c1e5845ba40563
https://research.rug.nl/en/publications/7e7e3c23-7fd0-4bcf-9cbd-cb4eee8bd8a4
https://research.rug.nl/en/publications/7e7e3c23-7fd0-4bcf-9cbd-cb4eee8bd8a4
Publikováno v:
GRAVITATIONAL LENSING: RECENT PROGRESS AND FUTURE GOALS, 193-196
STARTPAGE=193;ENDPAGE=196;TITLE=GRAVITATIONAL LENSING: RECENT PROGRESS AND FUTURE GOALS
STARTPAGE=193;ENDPAGE=196;TITLE=GRAVITATIONAL LENSING: RECENT PROGRESS AND FUTURE GOALS
We present the first unambiguous case of external variability of an extra-galactic radio source, the CLASS gravitational lens B1600+434, consisting of two images lensed by an edge-on disk galaxy. The VLA 8.5-GHz difference light curve of the lens ima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::68a28f399de720cd8e42394925701e6f
https://research.rug.nl/en/publications/fdd7ed2f-4fae-4f09-bcc9-5bc59203dd7b
https://research.rug.nl/en/publications/fdd7ed2f-4fae-4f09-bcc9-5bc59203dd7b
Autor:
Koopmans, LVE, de Bruyn, AG
Publikováno v:
Astronomy & astrophysics, 358(3), 793-811. EDP Sciences
We present the first unambiguous case of external variability of a radio gravitational lens, CLASS B1600+434. The Very Lai-ge Array (VLA) 8.5-GHz difference light curve of the lensed images, taking the proper time-delay into account, shows the presen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::0ecfebc8dc2a432a54671d47c3f53f18
https://research.rug.nl/en/publications/5b8471da-ee59-40dd-b1b5-b37456c1ee48
https://research.rug.nl/en/publications/5b8471da-ee59-40dd-b1b5-b37456c1ee48
Publikováno v:
Astronomy & astrophysics, 356(2), 391-402. EDP Sciences
We present Very Large Array (VLA) 8.5-GHz light curves of the two lens images of the Cosmic Lens All Sky Survey (CLASS) gravitational lens B1600+434. We find a nearly linear decrease of 18-19% in the flux densities of both lens images over a period o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ab2a912a08912427f932680b0721007
Autor:
Koopmans, LVE, Fassnacht, CD
Publikováno v:
Astrophysical Journal, 527(2), 513-524. IOP PUBLISHING LTD
We present mass models of the four-image gravitational lens system B1608 + 656, based on information obtained through VLBA imaging, VLA monitoring, and Hubble Space Telescope (HST) WFPC2 and NICMOS imaging. We have determined a mass model for the len
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::5e73a56655a00c536cf90c7bbfbeb62e
https://research.rug.nl/en/publications/df285a86-563d-4983-84e6-19fb6572d3a6
https://research.rug.nl/en/publications/df285a86-563d-4983-84e6-19fb6572d3a6