Zobrazeno 1 - 10
of 247
pro vyhledávání: '"Koester, B."'
Autor:
Rykoff, E. S., Rozo, E., Busha, M. T., Cunha, C. E., Finoguenov, A., Evrard, A., Hao, J., Koester, B. P., Leauthaud, A., Nord, B., Pierre, M., Reddick, R., Sadibekova, T., Sheldon, E. S., Wechsler, R. H.
We describe redMaPPer, a new red-sequence cluster finder specifically designed to make optimal use of ongoing and near-future large photometric surveys. The algorithm has multiple attractive features: (1) It can iteratively self-train the red-sequenc
Externí odkaz:
http://arxiv.org/abs/1303.3562
Autor:
Dahle, H., Gladders, M. D., Sharon, K., Bayliss, M. B., Wuyts, E., Abramson, L. E., Koester, B. P., Groeneboom, N., Brinckmann, T. E., Kristensen, M. T., Lindholmer, M. O., Nielsen, A., Krogager, J. -K., Fynbo, J. P. U.
We report the discovery of a unique gravitational lens system, SDSSJ2222+2745, producing five spectroscopically confirmed images of a z_s=2.82 quasar lensed by a foreground galaxy cluster at z_l=0.49. We also present photometric and spectroscopic evi
Externí odkaz:
http://arxiv.org/abs/1211.1091
Autor:
Meyers, J., Aldering, G., Barbary, K., Barrientos, L. F., Brodwin, M., Dawson, K. S., Deustua, S., Doi, M., Eisenhardt, P., Faccioli, L., Fakhouri, H. K., Fruchter, A. S., Gilbank, D. G., Gladders, M. D., Goldhaber, G., Gonzalez, A. H., Hattori, T., Hsiao, E., Ihara, Y., Kashikawa, N., Koester, B., Konishi, K., Lidman, C., Lubin, L., Morokuma, T., Oda, T., Perlmutter, S., Postman, M., Ripoche, P., Rosati, P., Rubin, D., Rykoff, E., Spadafora, A., Stanford, S. A., Suzuki, N., Takanashi, N., Tokita, K., Yasuda, N.
Using the sample of Type Ia supernovae (SNe Ia) discovered by the Hubble Space Telescope (HST) Cluster Supernova Survey and augmented with HST-observed SNe Ia in the GOODS fields, we search for correlations between the properties of SNe and their hos
Externí odkaz:
http://arxiv.org/abs/1201.3989
Autor:
Barbary, K., Aldering, G., Amanullah, R., Brodwin, M., Connolly, N., Dawson, K. S., Doi, M., Eisenhardt, P., Faccioli, L., Fadeyev, V., Fakhouri, H. K., Fruchter, A. S., Gilbank, D. G., Gladders, M. D., Goldhaber, G., Goobar, A., Hattori, T., Hsiao, E., Huang, X., Ihara, Y., Kashikawa, N., Koester, B., Konishi, K., Kowalski, M., Lidman, C., Lubin, L., Meyers, J., Morokuma, T., Oda, T., Panagia, N., Perlmutter, S., Postman, M., Ripoche, P., Rosati, P., Rubin, D., Schlegel, D. J., Spadafora, A. L., Stanford, S. A., Strovink, M., Suzuki, N., Takanashi, N., Tokita, K., Yasuda, N.
We present a measurement of the volumetric Type Ia supernova (SN Ia) rate out to z ~ 1.6 from the Hubble Space Telescope Cluster Supernova Survey. In observations spanning 189 orbits with the Advanced Camera for Surveys we discovered 29 SNe, of which
Externí odkaz:
http://arxiv.org/abs/1110.6442
Autor:
Suzuki, N., Rubin, D., Lidman, C., Aldering, G., Amanullah, R., Barbary, K., Barrientos, L. F., Botyanszki, J., Brodwin, M., Connolly, N., Dawson, K. S., Dey, A., Doi, M., Donahue, M., Deustua, S., Eisenhardt, P., Ellingson, E., Faccioli, L., Fadeyev, V., Fakhouri, H. K., Fruchter, A. S., Gilbank, D. G., Gladders, M. D., Goldhaber, G., Gonzalez, A. H., Goobar, A., Gude, A., Hattori, T., Hoekstra, H., Hsiao, E., Huang, X., Ihara, Y., Jee, M. J., Johnston, D., Kashikawa, N., Koester, B., Konishi, K., Kowalski, M., Linder, E. V., Lubin, L., Melbourne, J., Meyers, J., Morokuma, T., Munshi, F., Mullis, C., Oda, T., Panagia, N., Perlmutter, S., Postman, M., Pritchard, T., Rhodes, J., Ripoche, P., Rosati, P., Schlegel, D. J., Spadafora, A., Stanford, S. A., Stanishev, V., Stern, D., Strovink, M., Takanashi, N., Tokita, K., Wagner, M., Wang, L., Yasuda, N., Yee, H. K. C.
Publikováno v:
ApJ 746, 85 (2012)
We present ACS, NICMOS, and Keck AO-assisted photometry of 20 Type Ia supernovae SNe Ia from the HST Cluster Supernova Survey. The SNe Ia were discovered over the redshift interval 0.623 < z < 1.415. Fourteen of these SNe Ia pass our strict selection
Externí odkaz:
http://arxiv.org/abs/1105.3470
Autor:
Jee, M. J., Dawson, K. S., Hoekstra, H., Perlmutter, S., Rosati, P., Brodwin, M., Suzuki, N., Koester, B., Postman, M., Lubin, L., Meyers, J., Stanford, S. A., Barbary, K., Barrientos, F., Eisenhardt, P., Ford, H. C., Gilbank, D. G., Gladders, M. D., Gonzalez, A., Harris, D. W., Huang, X., Lidman, C., Rykoff, E. S., Rubin, D., Spadafora, A. L.
We present weak gravitational lensing analysis of 22 high-redshift (z >~1) clusters based on Hubble Space Telescope images. Most clusters in our sample provide significant lensing signals and are well detected in their reconstructed two-dimensional m
Externí odkaz:
http://arxiv.org/abs/1105.3186
Autor:
Rykoff, E. S., Koester, B. P., Rozo, E., Annis, J., Evrard, A. E., Hansen, S. M., Hao, J., Johnston, D. E., McKay, T. A., Wechsler, R. H.
Reducing the scatter between cluster mass and optical richness is a key goal for cluster cosmology from photometric catalogs. We consider various modifications to the red-sequence matched filter richness estimator of Rozo et al. (2009), and evaluate
Externí odkaz:
http://arxiv.org/abs/1104.2089
Autor:
Barbary, K., Aldering, G., Amanullah, R., Brodwin, M., Connolly, N., Dawson, K. S., Doi, M., Eisenhardt, P., Faccioli, L., Fadeyev, V., Fakhouri, H. K., Fruchter, A. S., Gilbank, D. G., Gladders, M. D., Goldhaber, G., Goobar, A., Hattori, T., Hsiao, E., Huang, X., Ihara, Y., Kashikawa, N., Koester, B., Konishi, K., Kowalski, M., Lidman, C., Lubin, L., Meyers, J., Morokuma, T., Oda, T., Panagia, N., Perlmutter, S., Postman, M., Ripoche, P., Rosati, P., Rubin, D., Schlegel, D. J., Spadafora, A. L., Stanford, S. A., Strovink, M., Suzuki, N., Takanashi, N., Tokita, K., Yasuda, N.
We report a measurement of the Type Ia supernova (SN Ia) rate in galaxy clusters at 0.9 < z < 1.45 from the Hubble Space Telescope (HST) Cluster Supernova Survey. This is the first cluster SN Ia rate measurement with detected z > 0.9 SNe. Finding 8 +
Externí odkaz:
http://arxiv.org/abs/1010.5786
Autor:
Dawson, K. S., Aldering, G., Amanullah, R., Barbary, K., Barrientos, L. F., Brodwin, M., Connolly, N., Dey, A., Doi, M., Donahue, M., Eisenhardt, P., Ellingson, E., Faccioli, L., Fadeyev, V., Fakhouri, H. K., Fruchter, A. S., Gilbank, D. G., Gladders, M. D., Goldhaber, G., Gonzalez, A. H., Goobar, A., Gude, A., Hattori, T., Hoekstra, H., Huang, X., Ihara, Y., Jannuzi, B. T., Johnston, D., Kashikawa, K., Koester, B., Konishi, K., Kowalski, M., Lidman, C., Linder, E. V., Lubin, L., Meyers, J., Morokuma, T., Munshi, F., Mullis, C., Oda, T., Panagia, N., Perlmutter, S., Postman, M., Pritchard, T., Rhodes, J., Rosati, P., Rubin, D., Schlegel, D. J., Spadafora, A., Stanford, S. A., Stanishev, V., Stern, D., Strovink, M., Suzuki, N., Takanashi, N., Tokita, K., Wagner, M., Wang, L., Yasuda, N., Yee, H. K. C.
Publikováno v:
Astronomical Journal, Volume 138, Issue 5, pp. 1271-1283 (2009)
We present a new survey strategy to discover and study high redshift Type Ia supernovae (SNe Ia) using the Hubble Space Telescope (HST). By targeting massive galaxy clusters at 0.9
Externí odkaz:
http://arxiv.org/abs/0908.3928
Autor:
Malesani, D., Fynbo, J. P. U., Hjorth, J., Leloudas, G., Sollerman, J., Stritzinger, M. D., Vreeswijk, P. M., Watson, D. J., Gorosabel, J., Michałowski, M. J., Thöne, C. C., Augusteijn, T., Bersier, D., Jakobsson, P., Jaunsen, A. O., Ledoux, C., Levan, A. J., Milvang-Jensen, B., Rol, E., Tanvir, N. R., Wiersema, K., Xu, D., Albert, L., Bayliss, M., Gall, C., Grove, L. F., Koester, B. P., Leitet, E., Pursimo, T., Skillen, I.
Publikováno v:
Astrophys. J.692:L84-L87, 2009; Astrophys.J.Lett.692:L84-L87,2009
SN 2008D was discovered while following up an unusually bright X-ray transient in the nearby spiral galaxy NGC 2770. We present early optical spectra (obtained 1.75 days after the X-ray transient) which allowed the first identification of the object
Externí odkaz:
http://arxiv.org/abs/0805.1188