4.1k citations · 4.6k across the 18 of their papers we have counts for
17 papers
Limits on pair production and multi-zone comptonization: The broadband X/gamma-ray spectrum of XTE J1550-564 revisited
L. Hjalmarsdotter, M. Axelsson, C. Done
At high luminosities black hole binaries show spectra with a strong disc component accompanied by an equally strong tail where at least some of the electrons are non-thermal. We re…
An imperfect double: probing the physical origin of the low-frequency QPO and its harmonic in black hole binaries
Magnus Axelsson, Chris Done, Linnea Hjalmarsdotter
We extract the spectra of the strong low-frequency quasi-periodic oscillation (QPO) and its harmonic during the rising phase of an outburst in the black-hole binary XTE J1550-564.…
Fast variability as a probe of the smallest regions around accreting black holes
M. Axelsson, L. Hjalmarsdotter, C. Done
We extract the spectra of the fastest variability (above 10 Hz) from the black hole XTE J1550-564 during a transition from hard to soft state on the rise to outburst. We confirm pr…
APEX sub-mm monitoring of gamma-ray blazars
S. Larsson, L. Fuhrmann, A. Weiss +13
So far, no systematic long-term blazar monitoring programs and detailed variability studies exist at sub-mm wavelengths. Here, we present a new sub-mm blazar monitoring program usi…
The aperiodic broad-band X-ray variability of Cygnus X-3
Magnus Axelsson, Stefan Larsson, Linnea Hjalmarsdotter
We study the soft X-ray variability of Cygnus X-3. By combining data from the All-Sky Monitor and Proportional Counter Array instruments on the RXTE satellite with EXOSAT Medium En…
The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
LAT Collaboration, W. B. Atwood
(Abridged) The Large Area Telescope (Fermi/LAT, hereafter LAT), the primary instrument on the Fermi Gamma-ray Space Telescope (Fermi) mission, is an imaging, wide field-of-view, hi…