Results 21 to 30 of about 2,376 (130)

Analysis of the two degree field galaxy redshift survey [PDF]

, 2001
In this Thesis we analyse in detail the Anglo-Australian 2 degree Field Galaxy Redshift Survey (2dFGRS). The goal of this survey is to measure all galaxy redshifts for the 250 000 galaxies brighter than b(_J) = 19.45 spread over ~ 2000 square degrees. At
Norberg, Iohn Peder Ragnar
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Investigating the nature of absorption lines in the Chandra X-ray spectra of the neutron star binary 4U 1820−30 [PDF]

, 2008
We use four Chandra gratings spectra of the neutron star low-mass X-ray binary 4U 1820–30 to better understand the nature of certain X-ray absorption lines in X-ray binaries, including the Ne II, Ne III, Ne IX, O VII, and O VIII lines.
R. Wijnands, Wijnands, R., Steeghs, D., Méndez, M., Mendez, M. M., Cackett, E. M., J. Raymond, Miller, J.M., J. Homan, M. van der Klis, Cackett, E.M., van der Klis, M., D. Steeghs, Raymond, J., Miller, J. M., M. Méndez, Homan, J., J. M. Miller, E. M. Cackett   +18 more
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Collar Replies to: astro-ph/9612003 "Comments on Biological Effects of Stellar Collapse Neutrinos" and astro-ph/9612214 "Volcanogenic Dark Matter and Mass Extinctions"

, 1997
A Reply to the criticisms contained in astro-ph/9612003 is provided and a logical inconsistency in astro-ph/9612214 is pointed out.A Reply to the criticisms contained in astro-ph/9612003 is provided and a logical inconsistency in astro-ph/9612214 is ...
Collar, J.I.
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Galaxy clusters at 0.6 < z < 1.4 in the UKIDSS ultra deep survey early data release

, 2006
We present the first cluster catalogue extracted from the UKIRT Infrared Deep Sky Survey (UKIDSS) Early Data Release. The catalogue is created using UKIDSS Ultra Deep Survey infrared J and K data combined with 3.6- and 4.5-μm Spitzer bands and optical ...
K. Sekiguchi (7589774), Page, M.J., Smail, I, van Breukelen, C, McLure, R.J., S. Foucaud (7599905), Watson, M.G., J.S. Dunlop (7599938), A.C. Edge (7599998), G. Dalton (7600670), Almaini, O., Barr, J.M., Clewley, L., D.G. Bonfield (7600664), Cirasuolo, M, P. Hirst (7599908), Bonfield, D.G., Bonfield, DG, Van Breukelen, C., Dalton, G, Hirst, P., McLure, RJ, Sekiguchi, K, Michael G. Watson (7589669), R.J. McLure (7600673), Cirasuolo, M., Barr, JM, L. Clewley (7600661), Page, MJ, Edge, A.C., O. Almaini (7599896), Sekiguchi, K., S. Rawlings (7599485), M.J. Jarvis (7600037), Simpson, C, I. Smail (7599914), Jarvis, M.J., Dunlop, J.S., Almaini, O, J.M. Barr (7600667), Dunlop, JS, Hirst, P, M.J. Page (7590437), Rawlings, S., C. Simpson (7599482), Rawlings, S, Dalton, G., Watson, MG, Edge, AC, Clewley, L, Jarvis, MJ, Smail, I., Foucaud, S., Simpson, C., Breukelen, CV, Foucaud, S, C. van Breukelen (7600658), M. Cirasuolo (7599899)   +57 more
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Atmospheric monitoring for the H.E.S.S. experiment using a single scattering lidar [PDF]

, 2009
The High Energy Stereoscopic System (H.E.S.S.) is an array of 4 telescopes located in Namibia, which use the imaging atmospheric Cherenkov technique (IACT) to study astrophysical emission of gamma radiation in the energy window from 100 GeV to 50 TeV ...
Rulten, Cameron Boyd
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The Sloan Digital Sky Survey-II Supernova Survey:search algorithm and follow-up observations [PDF]

, 2007
The Sloan Digital Sky Survey-II Supernova Survey has identified a large number of new transient sources in a 300 deg2 region along the celestial equator during its first two seasons of a three-season campaign.
Jha, Saurabh W., Holtzman, Jon A., DeJongh, Don Frederic, Garnavich, Peter M., Holtzman, Jon, Marriner, John, Depoy, D. L., Konishi, Kohki, Takanashi, Naohiro, Harnavek, Michael, Marriner, John P., Ketzeback, William, Frieman, Joshua A., Yasuda, Naoki, Pan, Kaike, Zheng, Chen, Snedden, Stephanie A., Dilday, Ben, Nitta, Atsuko, Richmond, Michael W., Barentine, John C., Brewington, Howard J., Ihara, Yutaka, Doi, Mamoru, Kleinman, Scott J., Dembicky, Jack, Morokuma, Tomoki, Hogan, Craig J., Malanushenko, Viktor, Cinabro, David, Subbarao, Mark, Becker, Andrew, Lampeitl, Hubert, Bassett, Bruce, Prieto, Jose Luis, Choi, Changsu, Tokita, Kouichi, Nichol, Robert C., Long, Daniel C., Smith, Mathew, Depoy, Darren L., Schneider, Donald P., Dejongh, Fritz, Kessler, Richard, Sako, Masao, McMillan, Russet J., Craig, Hogan, J., Van Der Heyden, Kurt, Im, Myungshin, Riess, Adam G., Jha, Saurabh, Malanushenko, Elena, Saurage, Gabrelle, Romani, Roger W., Krzesiński, Jurek, Bassett, Bruce A., Miknaitis, Gajus   +56 more
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Chemical and kinematical evolution in nearby dwarf spheroidal galaxies [PDF]

, 2006
Dwarf spheroidal (dSph) galaxies are the least massive and luminous objects known to exist. These galaxies are often considered as the fossil building blocks of massive systems predicted by some cosmological models.
Koch, Andreas
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The cosmological history of accretion onto dark halos and supermassive black holes

, 2006
Aims: We investigate the cosmological growth of dark halos and follow the consequences of coeval growth for the accretion history of associated supermassive black holes.
Miller, L., Babic, A., S. M. Croom, Percival, WJ, Percival, Will, Babic, A, L. Miller, W. J. Percival, A. Babić, Croom, S., Croom, SM, Miller, L   +11 more
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X-rays from Compton scattering around accreting black holes [PDF]

, 2002
Compton scattering is one of the most important radiation processes from accreting compact objects. Hard X-rays can be produced by Compton upscattering of soft seed photons from the accretion disk.
Wilson, Colin David
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Heavy neutrino balls and the supermassive dark object at the Galactic center

, 1999
Includes bibliographical references.Massive neutrinos were the first proposed, and still remain the most natural, particle candidate for the dark matter.
Munyaneza, Faustin
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