Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Kirhakos, Sofia"'
Autor:
Galbany, Lluís, Hamuy, Mario, Phillips, Mark M., Suntzeff, Nicholas B., Maza, José, de Jaeger, Thomas, Moraga, Tania, González-Gaitán, Santiago, Krisciunas, Kevin, Morrell, Nidia I., Thomas-Osip, Joanna, Krzeminski, Wojtek, González, Luis, Antezana, Roberto, Wischnjewski, Marina, McCarthy, Patrick, Anderson, Joseph P., Gutiérrez, Claudia P., Stritzinger, Maximilian, Folatelli, Gastón, Anguita, Claudio, Galaz, Gaspar, Green, Elisabeth M., Impey, Chris, Kim, Yong-Cheol, Kirhakos, Sofia, Malkan, Mathew A., Mulchaey, John S., Phillips, Andrew C., Pizzella, Alessandro, Prosser, Charles F., Schmidt, Brian P., Schommer, Robert A., Sherry, William, Strolger, Louis-Gregory, Wells, Lisa A., Williger, Gerard M.
We present a compilation of UBV RIz light curves of 51 type II supernovae discovered during the course of four different surveys during 1986 to 2003: the Cerro Tololo Supernova Survey, the Calan/Tololo Supernova Program (C&T), the Supernova Optical a
Externí odkaz:
http://arxiv.org/abs/1511.08402
Autor:
Churchill, Christopher W., Mellon, Richard R., Charlton, Jane C., Jannuzi, Buell T., Kirhakos, Sofia, Steidel, Charles C., Schneider, Donald P.
[Abridged] We examine a sample of 45 Mg II absorption-selected systems over the redshift range 0.4 to 1.4. Mg II and Fe II absorption profiles were observed at a resolution of ~6 km/s with HIRES/Keck. Lyman-alpha and C IV data were measured in archiv
Externí odkaz:
http://arxiv.org/abs/astro-ph/0005586
Autor:
Churchill, Christopher W., Mellon, Richard R., Charlton, Jane C., Jannuzi, Buell T., Kirhakos, Sofia, Steidel, Charles C., Schneider, Donald P.
Publikováno v:
Astrophys.J.Suppl. 130 (2000) 91-120
We present extensive metal-line absorption properties for 45 absorption systems that were selected by their Mg II absorption at redshifts between 0.4 and 1.4. For each system the properties of several chemical species are determined, including a wide
Externí odkaz:
http://arxiv.org/abs/astro-ph/0005585
Observations with the Wide-Field/Planetary Camera-2 of the Hubble Space Telescope (HST) are presented for three radio-loud quasars: 3C 48 (z=0.367), B2 1425+267 (z=0.366), and 3C 345 (z=0.594). All three quasars have luminous (~4 L^*) galaxies as hos
Externí odkaz:
http://arxiv.org/abs/astro-ph/9902175
Autor:
Weymann, Ray J., Jannuzi, Buell T., Lu, Limin, Bahcall, John N., Bergeron, Jacqueline, Boksenberg, Alec, Hartig, George F., Kirhakos, Sofia, Sargent, W. L. W., Savage, Blair D., Schneider, Donald P., Turnshek, David A., Wolfe, Arthur M.
Publikováno v:
ApJ, 506 (1998) 1
We present an analysis of the evolution of the Ly alpha absorption lines in the redshift interval 0.0 to \sim 1.5 based upon a sample of 987 lines identified in the spectra of 63 QSOs obtained with the Faint Object Spectrograph on the Hubble Space Te
Externí odkaz:
http://arxiv.org/abs/astro-ph/9806123
Autor:
Jannuzi, Buell T., Bahcall, John N., Bergeron, Jacqueline, Boksenberg, Alec, Hartig, George F., Kirhakos, Sofia, Sargent, W. L. W., Savage, Blair D., Schneider, Donald P., Turnshek, David A., Weymann, Ray J., Wolfe, Arthur M.
Publikováno v:
Astrophys.J.Suppl. 118 (1998) 1
We present a catalogue of absorption lines obtained from the analysis of the ultra-violet spectra of 66 quasars. The data were acquired with the Faint Object Spectrograph of the HST as part of the Quasar Absorption Line Survey, a Key Project for the
Externí odkaz:
http://arxiv.org/abs/astro-ph/9805148
Publikováno v:
Astrophys.J.479:642-658,1997
Observations with the Wide-Field Camera of the Hubble Space Telescope are presented for a representative sample of 20 intrinsically luminous quasars with redshifts smaller than 0.30. These observations show that luminous quasars occur in diverse envi
Externí odkaz:
http://arxiv.org/abs/astro-ph/9611163
We examine the clustering of galaxies around a sample of 20 luminous low redshift (z<0.30) quasars observed with the Wide Field Camera-2 on the Hubble Space Telescope. The HST resolution makes possible galaxy identification brighter than V=23.5 and a
Externí odkaz:
http://arxiv.org/abs/astro-ph/9602078
Publikováno v:
Astrophys.J. 457 (1996) 557-564
HST images (with WFPC2) of PHL~909\ ($z = 0.171$) and PG~0052$+$251\ ($z = 0.155$) show that these luminous radio-quiet quasars each occur in an apparently normal host galaxy. The host galaxy of PHL~909 is an elliptical galaxy ($\sim$ E4) and the hos
Externí odkaz:
http://arxiv.org/abs/astro-ph/9509031
Autor:
Bahcall, John N., Bergeron, Jacqueline, Boksenberg, Alec, hartig, George F., Jannuzi, Buell T., Kirhakos, Sofia, Sargent, W. L. W., Savage, Blair D., Schneider, Donald P., Turnshek, David A., Weymann, Ray J., Wolfe, Arthur M.
Publikováno v:
Astrophys.J. 457 (1996) 19-49
We present evidence that clumps of \lya lines are physically associated with about half of the extensive metal-line systems (absorption systems with four or more observed metal-line species) found in this paper, demonstrate that all four \lylimit sys
Externí odkaz:
http://arxiv.org/abs/astro-ph/9506124