74 citations · 108 across the 5 of their papers we have counts for
5 papers · 1 filter
Natural Transfer of Viable Microbes in Space from Planets in the Extra-Solar Systems to a Planet in our Solar System and Vice-Versa
Mauri Valtonen, Pasi Nurmi, Jia-Qing Zheng +7
We investigate whether it is possible that viable microbes could have been transported to Earth from the planets in extra-solar systems by means of natural vehicles such as ejecta…
Strong lensing by subhalos in the dwarf-galaxy mass range I: Image separations
E. Zackrisson, T. Riehm, O. Moeller +2
The cold dark matter scenario predicts that a large number of dark subhalos should be located within the halo of each Milky-way sized galaxy. One tell-tale signature of such dark s…
Clustering environment of BL Lac object RGB 1745+398
H. Lietzen, K. Nilsson, L. O. Takalo +4
The BL Lac object RGB 1745+398 lies in an environment that makes it possible to study the cluster around it more deeply than the environments of other BL Lac objects. The cluster c…
An analytical model of surface mass densities of cold dark matter haloes - with an application to MACHO microlensing optical depths
Janne Holopainen, Erik Zackrisson, Alexander Knebe +5
The cold dark matter (CDM) scenario generically predicts the existence of triaxial dark matter haloes which contain notable amounts of substructure. However, analytical halo models…
Are the nearby groups of galaxies gravitationally bound objects?
Sami-Matias Niemi, Pasi Nurmi, Pekka Heinämäki +1
We have compared numerical simulations to observations for the nearby (< 40 Mpc) groups of galaxies (Huchra & Geller 1982 and Ramella et al. 2002). The group identification is carr…