The Effect of Thermal Neutrino Motion on the Non-linear Cosmological Matter Power Spectrum (2008)
Brandbyge, Jacob, Hannestad, Steen, Haugboelle, Troels, Thomsen, Bjarne
We have performed detailed studies of non-linear structure formation in cosmological models with light neutrinos. For the first time the effect of neutrino thermal velocities has been included in a...
The Effect of Thermal Neutrino Motion on the Non-linear Cosmological Matter Power Spectrum (2008)
Brandbyge, Jacob, Hannestad, Steen, Haugbølle, Troels, Thomsen, Bjarne
16 pages, 7 figures.-- Submitted to JCAP.-- PACS numbers: 98.65.Dx, 95.35.+d, 14.60.Pq.
Precision measurements of large scale structure with future type Ia supernova surveys (2007)
Hannestad, Steen, Haugboelle, Troels, Thomsen, Bjarne
Type Ia supernovae are currently the best known standard candles at cosmological distances. In addition to providing a powerful probe of dark energy they are an ideal source of information about the...
The Velocity Field of the Local Universe from Measurements of Type Ia Supernovae (2006)
Haugboelle, Troels, Hannestad, Steen, Thomsen, Bjarne, Fynbo, Johan, Sollerman, Jesper, Jha, Saurabh
We present a measurement of the velocity flow of the local universe relative to the CMB rest frame, based on the Jha, Riess & Kirshner (2007) sample of 133 low redshift type Ia supernovae. At a depth...
Levan, Andrew, Fruchter, Andrew, Rhoads, James, Mobasher, Bahram, Tanvir, Nial, Gorosabel, Javier, ...
We present near-infrared (nIR) and optical observations of the afterglow of GRB 030115. Discovered in an infrared search at Kitt Peak 5 hours after the burst trigger, this afterglow is amongst the...
Optical Photometry of GRB 021004: The First Month (2002)
Holland, Stephen T., Weidinger, Michael, Fynbo, Johan P. U., Gorosabel, Javier, Hjorth, Jens, Pedersen, Kristian, ...
We present U,B,V,R_C,and I_C photometry of the optical afterglow of the gamma-ray burst GRB 021004 taken at the Nordic Optical Telescope between approximately eight hours and 30 days after the burst....
The afterglow and complex environment of the optically dim burst GRB 980613 (2002)
Hjorth, Jens, Thomsen, Bjarne, Nielsen, Svend R., Andersen, Michael I., Holland, Stephen T., Fynbo, Johan U., ...
We report the identification of the optical afterglow of GRB 980613 in R- and I-band images obtained between 16 and 48 hours after the gamma-ray burst. Early near-infrared (NIR) H and K' observations...
Stellar Populations Beyond the Local Group with the NGST (1998)
Holland, Stephen, Thomsen, Bjarne
We present simulated J- and K-band observations of stars in the Virgo and Coma clusters of galaxies using the proposed Next Generation Space Telescope with a Near-Infrared Camera, and discuss some of...
Crowded-field photometry from HST-imaging (1997)
Sodemann, Marianne, Thomsen, Bjarne
We present a thorough investigation of stellar photometry based on HST imaging of crowded fields at 85 and 10 arcsec from the centre of the high-surface brightness elliptical M32. The Principal...
The Distance to the Coma Cluster from Surface Brightness Fluctuations (1997)
Thomsen, Bjarne, Baum, William A., Hammergren, Mark, Worthey, Guy
We report on the first determination of the distance to the Coma Cluster based on surface brightness fluctuation (SBF) measurements obtained from Hubble Space Telescope WFPC2 observations of the...
Crowded-field photometry from HST-imaging (1997)
Marianne Sodemann, Bjarne Thomsen
. We present a thorough investigation of stellar photometry based on HST imaging of crowded fields at 85 00 and 10 00 from the centre of the high-surface brightness elliptical galaxy M32. The...