Zobrazeno 1 - 10
of 27
pro vyhledávání: '"York, Don"'
Autor:
Ak, N. Filiz, Brandt, W. N., Hall, P. B., Schneider, D. P., Trump, J. R., Anderson, S. F., Hamann, F., Myers, Adam D., Paris, I., Petitjean, P., Ross, Nicholas P., Shen, Yue, York, Don
We consider how the profile and multi-year variability properties of a large sample of C IV Broad Absorption Line (BAL) troughs change when BALs from Si IV and/or Al III are present at corresponding velocities, indicating that the line-of-sight inter
Externí odkaz:
http://arxiv.org/abs/1407.2250
Autor:
Ak, N. Filiz, Brandt, W. N., Hall, P. B., Schneider, D. P., Anderson, S. F., Hamann, F., Lundgren, B. F., Myers, Adam D., Paris, I., Petitjean, P., Ross, Nicholas P., Shen, Yue, York, Don
We present a detailed investigation of the variability of 428 C IV and 235 Si IV Broad Absorption Line (BAL) troughs identified in multi-epoch observations of 291 quasars by the Sloan Digital Sky Survey-I/II/III. These observations primarily sample r
Externí odkaz:
http://arxiv.org/abs/1309.5364
Autor:
Roy, Rupak, Sutaria, Firoza, Bose, Subhash, Johnson, Sean, Dwarkadas, Vikram, York, Brian, Kumar, Brijesh, Kumar, Brajesh, Bhatt, Vijay K., Chakraborti, Sayan, York, Don, Ritchey, Adam, Saurage, Gabrielle, Kaiser, Mary Beth
Supernova 2012A was discovered on 7.39UT, January, 2012 in the nearby galaxy NGC 3239 at an unfiltered magnitude of 14.6 and classified spectroscopically as a Type IIP event. Here, we present the optical photometric and spectroscopic follow-up of the
Externí odkaz:
http://arxiv.org/abs/1304.2457
Autor:
Eisenstein, Daniel J., Hogg, David W., Fukugita, Masataka, Nakamura, Osamu, Bernardi, Mariangela, Finkbeiner, Douglas P., Schlegel, David J., Brinkmann, J., Connolly, Andrew J., Csabai, Istvan, Gunn, James E., Ivezic, Zeljko, Lamb, Don Q., Loveday, Jon, Munn, Jeffrey A., Nichol, Robert C., Schneider, Donald P., Strauss, Michael A., Szalay, Alex, York, Don G.
Publikováno v:
Astrophys.J. 585 (2003) 694-713
We combine Sloan Digital Sky Survey spectra of 22,000 luminous, red, bulge-dominated galaxies to get high S/N average spectra in the rest-frame optical and ultraviolet (2600A to 7000A). The average spectra of these massive, quiescent galaxies are ear
Externí odkaz:
http://arxiv.org/abs/astro-ph/0212087
Autor:
Kauffmann, Guinevere, Heckman, Timothy M., White, Simon D. M., Charlot, Stephane, Tremonti, Christy, Peng, Eric W., Seibert, Mark, Brinkmann, Jon, Nichol, Robert C., SubbaRao, Mark, York, Don
Publikováno v:
Mon.Not.Roy.Astron.Soc.341:54,2003
We study the relations between stellar mass, star formation history, size and internal structure for a complete sample of 122,808 galaxies drawn from the Sloan Digital Sky Survey. We show that low-redshift galaxies divide into two distinct families a
Externí odkaz:
http://arxiv.org/abs/astro-ph/0205070
Autor:
Kauffmann, Guinevere, Heckman, Timothy M., White, Simon D. M., Charlot, Stephane, Tremonti, Christy, Brinchmann, Jarle, Bruzual, Gustavo, Peng, Eric W., Seibert, Mark, Bernardi, Mariangela, Blanton, Michael, Brinkmann, Jon, Castander, Francisco, Csabai, Istvan, Fukugita, Masataka, Ivezic, Zeljko, Munn, Jeffrey, Nichol, Robert, Padmanabhan, Nikhil, Thakar, Anniruddha, Weinberg, David, York, Don
Publikováno v:
Mon.Not.Roy.Astron.Soc.341:33,2003
We develop a new method to constrain the star formation histories, dust attenuation and stellar masses of galaxies. It is based on two stellar absorption line indices, the 4000 Angstrom break strength and the Balmer absorption line index Hdelta_A. To
Externí odkaz:
http://arxiv.org/abs/astro-ph/0204055
Autor:
Lee, Brian C., Tucker, Douglas L., Berk, Daniel E. Vanden, Yanny, Brian, Reichart, Daniel E., Adelman, Jennifer, Chen, Bing, Harvanek, Mike, Henden, Arne, Ivezic, Zeljko, Kleinman, Scot, Lamb, Don, Long, Dan, McMillan, Russet, Newman, Peter R., Nitta, Atsuko, Palunas, Povilas, Schneider, Donald, Snedden, Steph, York, Don, Briggs, John W., Brinkmann, J., Csabai, Istvan, Hennessy, Greg S., Kent, Stephen, Lupton, Robert, Newberg, Heidi Jo, Stoughton, Chris
Publikováno v:
Astrophys.J. 561 (2001) 183-188
The discovery of an optical counterpart to GRB010222 (detected by BeppoSAX; Piro 2001) was announced 4.4 hrs after the burst by Henden (2001a). The Sloan Digital Sky Survey's 0.5m photometric telescope (PT) and 2.5m survey telescope were used to obse
Externí odkaz:
http://arxiv.org/abs/astro-ph/0104201
Autor:
Sako, Masao, Romani, Roger, Frieman, Josh, Adelman-Mccarthy, Jen, Becker, Andrew, Dejongh, Fritz, Dilday, Ben, Estrada, Juan, Hendry, John, Holtzman, Jon, Kaplan, Jared, Kessler, Rick, Lampeitl, Hubert, Marriner, John, Miknaitis, Gajus, Riess, Adam, Douglas Tucker, Barentine, John, Blandford, Roger, Brewington, Howard, Dembicky, Jack, Harvanek, Mike, Hawley, Suzanne, Hogan, Craig, Johnston, David, Kahn, Steve, Ketzeback, Bill, Kleinman, Scot, Krzesinski, Jerzy, Lamenti, Dennis, Long, Dan, Mcmillan, Russet, Newman, Peter, Nitta, Atsuko, Nichol, Robert, Scranton, Ryan, Sheldon, Erin, Snedden, Stephanie, Stoughton, Chris, York, Don, Sdss, Collaboration
Publikováno v:
NASA Astrophysics Data System
In preparation for the Supernova Survey of the Sloan Digital Sky Survey (SDSS) II, a proposed 3-year extension to the SDSS, we have conducted an early engineering and science run during the fall of 2004, which consisted of approximately 20 scheduled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d649365e4b77e9fbb11da0bf169c559
Autor:
LOEWENSTEIN, R. F., OWEN, RUSSELL, YANNY, BRIAN, FOWLER, JAMES R., HARPER JR., D. A., YORK, DON
Publikováno v:
Observing At A Distance - Proceedings of A Workshop on Remote Observing; 1993, p19-29, 11p
Autor:
Kauffmann, Guinevere, Heckman, Timothy M., White, Simon D.M., Charlot, Stéphane, Tremonti, Christy, Peng, Eric W., Seibert, Mark, Brinkmann, Jon, Nichol, Robert C., SubbaRao, Mark, York, Don
Publikováno v:
Monthly Notices of the Royal Astronomical Society; 5/1/2003, Vol. 341 Issue 1, p54, 16p