Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- AlbaNovaSE3.4k papers
- KTH Royal Institute of TechnologySE3.1k papers
- Centre National de la Recherche ScientifiqueFR2.9k papers
- Uppsala UniversitySE2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.8k papers
- University of CopenhagenDK1.8k papers
- Lawrence Berkeley National LaboratoryUS1.8k papers
- University of GenevaCH1.7k papers
- University of OxfordGB1.7k papers
- Aix-Marseille UniversitéFR1.7k papers
- University of California, BerkeleyUS1.7k papers
36 papers · 2 filters
Spitzer Observations of Massive Red Galaxies at High Redshift
Casey Papovich, L. A. Moustakas, M. Dickinson +18
We investigate the properties of massive galaxies at z=1-3.5 using HST observations, ground-based near-IR imaging, and Spitzer Space Telescope observations at 3-24 micron. We ident…
CSL-1: Lensing by a Cosmic String or a Dark Matter Filament?
Malcolm Fairbairn
The lens candidate CSL-1 has been interpreted as evidence for a cosmic string. Here we test the hypothesis that the lensing comes from a tidally disrupted dark matter halo. We calc…
Supernova limits on brane world cosmology
Malcolm Fairbairn, Ariel Goobar
By combining the first year data from the Supernova Legacy Survey (SN LS) and the recent detection of the baryon acoustic peak in the Sloan Digital Sky Survey data, we are able to…
The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set
P. Astier, J. Guy, N. Regnault +39
We present distance measurements to 71 high redshift type Ia supernovae discovered during the first year of the 5-year Supernova Legacy Survey (SNLS). These events were detected an…
Star--forming galaxies at intermediate redshifts: morphology, ages and sizes
Duilia. F. de Mello, Y. Wadadekar, T. Dahlen +2
We present the analysis of the deepest near-UV image obtained with HST using the WFPC2(F300W) as part of the parallel observations of the Ultra Deep Field campaign. The U-band 10si…
The host galaxy cluster of the short gamma-ray burst GRB 050509B
K. Pedersen, A. Eliasdottir, J. Hjorth +7
The first arcsecond localization of a short gamma-ray burst, GRB 050509B, has enabled detailed studies of a short burst environment. We here report on studies of the environment of…
The optical afterglow of the short gamma-ray burst GRB 050709
Jens Hjorth, Darach Watson, Johan P. U. Fynbo +9
It has long been known that there are two classes of gamma-ray bursts (GRBs), mainly distinguished by their durations. The breakthrough in our understanding of long-duration GRBs (…
Supernova Cosmology and the ESSENCE project
Jesper Sollerman, Claudio Aguilera, Andy Becker +27
The proper usage of Type Ia supernovae (SNe Ia) as distance indicators has revolutionized cosmology, and added a new dominant component to the energy density of the Universe, dark…
Strong lensing, cosmology and lensing halos
Edvard Mortsell, Christoffer Sunesson
With future wide and deep cosmological sky surveys, a large number of gravitationally lensed, multiply imaged systems will be found. In addition to multiply imaged galaxies and qua…
Odin detection of O2
R. Liseau, the Odin Team
We present the detection of molecular oxygen with Odin toward the dense molecular core rho Oph A, which is part of a region of active star formation. The observed spectral line is…
Radio and X-Ray Emission as Probes of Type IIP Supernovae and Red Supergiant Mass Loss
Roger A. Chevalier, Claes Fransson, Tanja K. Nymark
Type IIP (plateau) supernovae are thought to come from stars with initial mass about 8-25 solar masses that end their lives as red supergiants. The expected stellar end points can…
Spectra of High-Redshift Type Ia Supernovae and a Comparison with their Low-Redshift Counterparts
I. M. Hook, D. A. Howell, G. Aldering +32
We present spectra for 14 high-redshift (0.17 < z < 0.83) supernovae, which were discovered by the Supernova Cosmology Project as part of a campaign to measure cosmological paramet…
Looking at quasars through galaxies
L. Ostman, A. Goobar, E. Mortsell
Observations of quasars (QSOs) shining through or close to galaxies offer a way to probe the properties of the foreground matter through dust extinction and gravitational lensing.…
Limits to the muon flux from neutralino annihilations in the Sun with the AMANDA detector
The AMANDA collaboration, M. Ackermann
A search for an excess of muon-neutrinos from neutralino annihilations in the Sun has been performed with the AMANDA-II neutrino detector using data collected in 143.7 days of live…
GRB 050509B: Constraints on short gamma-ray burst models
J. Hjorth, J. Sollerman, J. Gorosabel +19
We have obtained deep optical images with the Very Large Telescope at ESO of the first well-localized short-duration gamma-ray burst, GRB 050509B. From V and R imaging, initiated ~…
Spectroscopy of twelve Type Ia supernovae at intermediate redshift
C. Balland, M. Mouchet, R. Pain +15
We present spectra of twelve Type Ia supernovae obtained in 1999 at the William Herschel Telescope and the Nordic Optical Telescope during a search for Type Ia supernovae (SN Ia) a…
Spectroscopic Observations and Analysis of the Unusual Type Ia SN 1999ac
The Supernova Cosmology Project, :, G. Garavini +55
We present optical spectra of the peculiar Type Ia supernova (SN Ia) 1999ac. The data extend from -15 to +42 days with respect to B-band maximum and reveal an event that is unusual…
Smoothed Particle Inference: A Kilo-Parametric Method for X-ray Galaxy Cluster Modeling
J. R. Peterson, P. J. Marshall, K. Andersson
We propose an ambitious new method that models the intracluster medium in clusters of galaxies as a set of X-ray emitting smoothed particles of plasma. Each smoothed particle is de…
Direct reconstruction of the quintessence potential
Martin Sahlén, Andrew R. Liddle, David Parkinson
We describe an algorithm which directly determines the quintessence potential from observational data, without using an equation of state parametrisation. The strategy is to numeri…
On the nature of nearby GRB/SN host galaxies
J. Sollerman, G. Ostlin, J. P. U. Fynbo +3
We present and discuss optical diagnostics of the low redshift (z<0.2) galaxies that are known to have hosted supernovae associated with gamma-ray bursts (GRBs). The three galaxies…
Lensing magnification of supernovae in the GOODS-fields
Jakob Jonsson, Tomas Dahlen, Ariel Goobar +3
Gravitational lensing of high-redshift supernovae is potentially an important source of uncertainty when deriving cosmological parameters from the measured brightness of Type Ia su…
Corrections for gravitational lensing of supernovae: better than average?
Christofer Gunnarsson, Tomas Dahlen, Ariel Goobar +2
We investigate the possibility of correcting for the magnification due to gravitational lensing of standard candle sources, such as Type Ia supernovae. Our method uses the observed…
High-energetic Cosmic Antiprotons from Kaluza-Klein Dark Matter
Torsten Bringmann
The lightest Kaluza-Klein particle (LKP) in models with universal extra dimensions is an interesting dark matter candidate that has recently received great attention. Here, we inve…
A large spin-up rate measured with INTEGRAL in the High Mass X-ray Binary Pulsar SAXJ2103.5+4545
L. Sidoli, S. Mereghetti, S. Larsson +7
The High Mass X-ray Binary Pulsar SAXJ2103.5+4545 has been observed with INTEGRAL several times during the last outburst in 2002-2004. We report a comprehensive study of all INTEGR…