Zobrazeno 91 - 100
of 752
pro vyhledávání: '"Kudritzki, R. P."'
Autor:
Kudritzki, R. -P., Urbaneja, M. A.
Blue Supergiants (BSGs) are the brightest stars in the universe at visual light with absolute magnitudes up to Mv=-10 mag. They are ideal stellar objects for the determination of extragalactic distances, in particular, because the perennial uncertain
Externí odkaz:
http://arxiv.org/abs/1112.3935
Autor:
Kudritzki, R. -P., Urbaneja, M. A., Gazak, Z., Bresolin, F., Przybilla, N., Gieren, W., Pietrzynski, G.
The quantitative spectral analysis of low resolution Keck LRIS spectra of blue supergiants in the disk of the giant spiral galaxy M81 is used to determine stellar effective temperatures, gravities, metallicities, luminosites, interstellar reddening a
Externí odkaz:
http://arxiv.org/abs/1112.3643
Autor:
Sanders, Nathan E., Soderberg, A. M., Valenti, S., Foley, R. J., Chornock, R., Chomiuk, L., Berger, E., Smartt, S., Hurley, K., Barthelmy, S. D., Levesque, E. M., Narayan, G., Kirshner, R. P., Botticella, M. T., Briggs, M. S., Connaughton, V., Terada, Y., Gehrels, N., Golenetskii, S., Mazets, E., Cline, T., von Kienlin, A., Boynton, W., Chambers, K. C., Grav, T., Heasley, J. N., Hodapp, K. W., Jedicke, R., Kaiser, N., Kudritzki, R. -P., Luppino, G. A., Lupton, R. H., Magnier, E. A., Monet, D. G., Morgan, J. S., Onaka, P. M., Price, P. A., Stubbs, C. W., Tonry, J. L., Wainscoat, R. J., Waterson, M. F.
Publikováno v:
Astrophysical Journal 756 (2012) 184S
We report on our serendipitous pre-discovery detection and detailed follow-up of the broad-lined Type Ic supernova (SN) 2010ay at z = 0.067 imaged by the Pan-STARRS1 3pi survey just ~4 days after explosion. The SN had a peak luminosity, M_R ~ -20.2 m
Externí odkaz:
http://arxiv.org/abs/1110.2363
Autor:
Tonry, J. L., Stubbs, C. W., Kilic, M., Flewelling, H. A., Deacon, N . R., Chornock, R., Berger, E., Burgett, W. S., Chambers, K. C., Kaiser, N., Kudritzki, R-P., Hodapp, K. W., Magnier, E. A., Morgan, J. S., Price, P. A., Wainscoat, R. J.
The Pan-STARRS1 survey has obtained multi-epoch imaging in five bands (Pan-STARRS1 gps, rps, ips, zps, and yps) on twelve "Medium Deep Fields", each of which spans a 3.3 degree circle. For the period between Apr 2009 and Apr 2011 these fields were ob
Externí odkaz:
http://arxiv.org/abs/1110.0060
Autor:
Liu, Michael C., Deacon, Niall R., Magnier, Eugene A., Dupuy, Trent J., Aller, Kimberly M., Bowler, Brendan P., Goldman, Bertrand, Burgett, W. S., Chambers, K. C., Hodapp, K. W., Kaiser, N., Kudritzki, R. -P., Morgan, J. S., Price, P. A., Tonry, J. L., Wainscoat, R. J.
We have searched ~8200 sq. degs for high proper motion (~0.5-2.7"/year) T dwarfs by combining first-epoch data from the Pan-STARRS1 (PS1) 3-Pi Survey, the 2MASS All-Sky Point Source Catalog, and the WISE Preliminary Data Release. We identified two hi
Externí odkaz:
http://arxiv.org/abs/1107.4608
Autor:
Chomiuk, L., Chornock, R., Soderberg, A. M., Berger, E., Chevalier, R. A., Foley, R. J., Huber, M. E., Narayan, G., Rest, A., Gezari, S., Kirshner, R. P., Riess, A., Rodney, S. A., Smartt, S. J., Stubbs, C. W., Tonry, J. L., Wood-Vasey, W. M., Burgett, W. S., Chambers, K. C., Czekala, I., Flewelling, H., Forster, K., Kaiser, N., Kudritzki, R. P., Magnier, E. A., Martin, D. C., Morgan, J. S., Neill, J. D., Price, P. A., Roth, K. C., Sanders, N. E., Wainscoat, R. J.
We present the discovery of two ultra-luminous supernovae (SNe) at z ~ 0.9 with the Pan-STARRS1 Medium-Deep Survey. These SNe, PS1-10ky and PS1-10awh, are amongst the most luminous SNe ever discovered, comparable to the unusual transients SN 2005ap a
Externí odkaz:
http://arxiv.org/abs/1107.3552
Autor:
Evans, C. J., Davies, B., Kudritzki, R. -P., Puech, M., Yang, Y., Cuby, J. -G., Figer, D. F., Lehnert, M. D, Morris, S. L., Rousset, G.
We present simulated J-band spectroscopy of red giants and supergiants with a 42m European Extremely Large Telescope (E-ELT), using tools developed toward the EAGLE Phase A instrument study. The simulated spectra are used to demonstrate the validity
Externí odkaz:
http://arxiv.org/abs/1012.2383
Autor:
Pietrzynski, G., Gieren, W., Hamuy, M., Pignata, G., Soszynski, I., Udalski, A., Walker, A., Fouque, P., Bresolin, F., Kudritzki, R. P., Garcia-Varela, A., Szewczyk, O., Szymanski, M., Kubiak, M., Wyrzykowski, L.
We have detected, for the first time, Cepheid variables in the Sculptor Group spiral galaxy NGC 7793. From wide-field images obtained in the optical V and I bands on 56 nights in 2003-2005, we have discovered 17 long-period (24-62 days) Cepheids whos
Externí odkaz:
http://arxiv.org/abs/1008.3040
Autor:
Pastorello, A., Smartt, S. J., Botticella, M. T., Maguire, K., Fraser, M., Smith, K., Kotak, R., Magill, L., Valenti, S., Young, D. R., Gezari, S., Bresolin, F., Kudritzki, R., Howell, D. A., Rest, A., Metcalfe, N., Mattila, S., Kankare, E., Huang, K. Y., Urata, Y., Burgett, W. S., Chambers, K. C., Dombeck, T., Flewelling, T., Grav, T., Heasley, J. N., Hodapp, K. W., Kaiser, N., Luppino, G. A., Lupton, R. H., Magnier, E. A., Monet, D. G., Morgan, J. S., Onaka, P. M., Price, P. A., Rhoads, P. H., Siegmund, W. A., Stubbs, C. W., Sweeney, W. E., Tonry, J. L., Wainscoat, R. J., Waterson, M. F., Waters, C., Wynn-Williams, C. G.
Recent searches by unbiased, wide-field surveys have uncovered a group of extremely luminous optical transients. The initial discoveries of SN 2005ap by the Texas Supernova Search and SCP-06F6 in a deep Hubble pencil beam survey were followed by the
Externí odkaz:
http://arxiv.org/abs/1008.2674
Using a slitless spectroscopy method with the 8.2 m Subaru telescope and its FOCAS Cassegrain spectrograph, we have increased the number of planetary nebula (PN) detections and PN velocity measurements in the flattened elliptical galaxy NGC 821. A co
Externí odkaz:
http://arxiv.org/abs/1008.2237